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Apache HTTP Server Version 2.4

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Directive Quick Reference

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The directive quick reference shows the usage, default, status, and context of each Apache configuration directive. For more information about each of these, see the Directive Dictionary. The first column gives the directive name and usage. The second column shows the default value of the directive, if a default exists. If the default is too large to display, it will be truncated and followed by "+". The third and fourth columns list the contexts where the directive is allowed and the status of the directive according to the legend tables below.

A | B | C | D | E | F | G | H | I | K | L | M | N | O | P | Q | R | S | T | U | V | W | X

s server config v virtual host d directory h .htaccess

C Core M MPM B Base E Extension X Experimental T External

Directive name and usage	Default	Context	Status
AcceptFilter protocol accept_filter Configure optimizations for a Protocol's Listener Sockets		s	C
AcceptPathInfo On|Off|Default Resources accept trailing pathname information	Default	svdh	C
AccessFileName filename [filename] ... Name of the distributed configuration file	.htaccess	sv	C
Action action-type cgi-script [virtual] Activates a CGI script for a particular handler or content-type		svdh	B
AddAlt string file [file] ... Alternate text to display for a file, instead of an icon selected by filename		svdh	B
AddAltByEncoding string MIME-encoding [MIME-encoding] ... Alternate text to display for a file instead of an icon selected by MIME-encoding		svdh	B
AddAltByType string MIME-type [MIME-type] ... Alternate text to display for a file, instead of an icon selected by MIME content-type		svdh	B
AddCharset charset extension [extension] ... Maps the given filename extensions to the specified content charset		svdh	B
AddDefaultCharset On|Off|charset Default charset parameter to be added when a response content-type is text/plain or text/html	Off	svdh	C
AddDescription string file [file] ... Description to display for a file		svdh	B
AddEncoding encoding extension [extension] ... Maps the given filename extensions to the specified encoding type		svdh	B
AddHandler handler-name extension [extension] ... Maps the filename extensions to the specified handler		svdh	B
AddIcon icon name [name] ... Icon to display for a file selected by name		svdh	B
AddIconByEncoding icon MIME-encoding [MIME-encoding] ... Icon to display next to files selected by MIME content-encoding		svdh	B
AddIconByType icon MIME-type [MIME-type] ... Icon to display next to files selected by MIME content-type		svdh	B
AddInputFilter filter[;filter...] extension [extension] ... Maps filename extensions to the filters that will process client requests		svdh	B
AddLanguage language-tag extension [extension] ... Maps the given filename extension to the specified content language		svdh	B
AddModuleInfo module-name string Adds additional information to the module information displayed by the server-info handler		sv	E
AddOutputFilter filter[;filter...] extension [extension] ... Maps filename extensions to the filters that will process responses from the server		svdh	B
AddOutputFilterByType filter[;filter...] media-type [media-type] ... assigns an output filter to a particular media-type		svdh	B
AddType media-type extension [extension] ... Maps the given filename extensions onto the specified content type		svdh	B
Alias [URL-path] file-path|directory-path Maps URLs to filesystem locations		svd	B
AliasMatch regex file-path|directory-path Maps URLs to filesystem locations using regular expressions		sv	B
Allow from all|host|env=[!]env-variable [host|env=[!]env-variable] ... Controls which hosts can access an area of the server		dh	E
AllowCONNECT port[-port] [port[-port]] ... Ports that are allowed to CONNECT through the proxy	443 563	sv	E
AllowEncodedSlashes On|Off|NoDecode Determines whether encoded path separators in URLs are allowed to be passed through	Off	sv	C
AllowMethods reset|HTTP-method [HTTP-method]... Restrict access to the listed HTTP methods	reset	d	X
AllowOverride All|None|directive-type [directive-type] ... Types of directives that are allowed in .htaccess files	None (2.3.9 and lat +)	d	C
AllowOverrideList None|directive [directive-type] ... Individual directives that are allowed in .htaccess files	None	d	C
Anonymous user [user] ... Specifies userIDs that are allowed access without password verification		dh	E
Anonymous_LogEmail On|Off Sets whether the password entered will be logged in the error log	On	dh	E
Anonymous_MustGiveEmail On|Off Specifies whether blank passwords are allowed	On	dh	E
Anonymous_NoUserID On|Off Sets whether the userID field may be empty	Off	dh	E
Anonymous_VerifyEmail On|Off Sets whether to check the password field for a correctly formatted email address	Off	dh	E
AsyncRequestWorkerFactor factor Limit concurrent connections per process		s	M
AuthBasicAuthoritative On|Off Sets whether authorization and authentication are passed to lower level modules	On	dh	B
AuthBasicFake off|username [password] Fake basic authentication using the given expressions for username and password		dh	B
AuthBasicProvider provider-name [provider-name] ... Sets the authentication provider(s) for this location	file	dh	B
AuthBasicUseDigestAlgorithm MD5|Off Check passwords against the authentication providers as if Digest Authentication was in force instead of Basic Authentication.	Off	dh	B
AuthDBDUserPWQuery query SQL query to look up a password for a user		d	E
AuthDBDUserRealmQuery query SQL query to look up a password hash for a user and realm.		d	E
AuthDBMGroupFile file-path Sets the name of the database file containing the list of user groups for authorization		dh	E
AuthDBMType default|SDBM|GDBM|NDBM|DB Sets the type of database file that is used to store passwords	default	dh	E
AuthDBMUserFile file-path Sets the name of a database file containing the list of users and passwords for authentication		dh	E
AuthDigestAlgorithm MD5|MD5-sess Selects the algorithm used to calculate the challenge and response hashes in digest authentication	MD5	dh	E
AuthDigestDomain URI [URI] ... URIs that are in the same protection space for digest authentication		dh	E
AuthDigestNonceLifetime seconds How long the server nonce is valid	300	dh	E
AuthDigestProvider provider-name [provider-name] ... Sets the authentication provider(s) for this location	file	dh	E
AuthDigestQop none|auth|auth-int [auth|auth-int] Determines the quality-of-protection to use in digest authentication	auth	dh	E
AuthDigestShmemSize size The amount of shared memory to allocate for keeping track of clients	1000	s	E
AuthFormAuthoritative On|Off Sets whether authorization and authentication are passed to lower level modules	On	dh	B
AuthFormBody fieldname The name of a form field carrying the body of the request to attempt on successful login		d	B
AuthFormDisableNoStore On|Off Disable the CacheControl no-store header on the login page	Off	d	B
AuthFormFakeBasicAuth On|Off Fake a Basic Authentication header	Off	d	B
AuthFormLocation fieldname The name of a form field carrying a URL to redirect to on successful login		d	B
AuthFormLoginRequiredLocation url The URL of the page to be redirected to should login be required		d	B
AuthFormLoginSuccessLocation url The URL of the page to be redirected to should login be successful		d	B
AuthFormLogoutLocation uri The URL to redirect to after a user has logged out		d	B
AuthFormMethod fieldname The name of a form field carrying the method of the request to attempt on successful login		d	B
AuthFormMimetype fieldname The name of a form field carrying the mimetype of the body of the request to attempt on successful login		d	B
AuthFormPassword fieldname The name of a form field carrying the login password		d	B
AuthFormProvider provider-name [provider-name] ... Sets the authentication provider(s) for this location	file	dh	B
AuthFormSitePassphrase secret Bypass authentication checks for high traffic sites		d	B
AuthFormSize size The largest size of the form in bytes that will be parsed for the login details		d	B
AuthFormUsername fieldname The name of a form field carrying the login username		d	B
AuthGroupFile file-path Sets the name of a text file containing the list of user groups for authorization		dh	B
AuthLDAPAuthorizePrefix prefix Specifies the prefix for environment variables set during authorization	AUTHORIZE_	dh	E
AuthLDAPBindAuthoritative off|on Determines if other authentication providers are used when a user can be mapped to a DN but the server cannot successfully bind with the user's credentials.	on	dh	E
AuthLDAPBindDN distinguished-name Optional DN to use in binding to the LDAP server		dh	E
AuthLDAPBindPassword password Password used in conjunction with the bind DN		dh	E
AuthLDAPCharsetConfig file-path Language to charset conversion configuration file		s	E
AuthLDAPCompareAsUser on|off Use the authenticated user's credentials to perform authorization comparisons	off	dh	E
AuthLDAPCompareDNOnServer on|off Use the LDAP server to compare the DNs	on	dh	E
AuthLDAPDereferenceAliases never|searching|finding|always When will the module de-reference aliases	always	dh	E
AuthLDAPGroupAttribute attribute LDAP attributes used to identify the user members of groups.	member uniquemember +	dh	E
AuthLDAPGroupAttributeIsDN on|off Use the DN of the client username when checking for group membership	on	dh	E
AuthLDAPInitialBindAsUser off|on Determines if the server does the initial DN lookup using the basic authentication users' own username, instead of anonymously or with hard-coded credentials for the server	off	dh	E
AuthLDAPInitialBindPattern regex substitution Specifies the transformation of the basic authentication username to be used when binding to the LDAP server to perform a DN lookup	(.*) $1 (remote use +	dh	E
AuthLDAPMaxSubGroupDepth Number Specifies the maximum sub-group nesting depth that will be evaluated before the user search is discontinued.	10	dh	E
AuthLDAPRemoteUserAttribute uid Use the value of the attribute returned during the user query to set the REMOTE_USER environment variable		dh	E
AuthLDAPRemoteUserIsDN on|off Use the DN of the client username to set the REMOTE_USER environment variable	off	dh	E
AuthLDAPSearchAsUser on|off Use the authenticated user's credentials to perform authorization searches	off	dh	E
AuthLDAPSubGroupAttribute attribute Specifies the attribute labels, one value per directive line, used to distinguish the members of the current group that are groups.		dh	E
AuthLDAPSubGroupClass LdapObjectClass Specifies which LDAP objectClass values identify directory objects that are groups during sub-group processing.	groupOfNames groupO +	dh	E
AuthLDAPUrl url [NONE|SSL|TLS|STARTTLS] URL specifying the LDAP search parameters		dh	E
AuthMerging Off | And | Or Controls the manner in which each configuration section's authorization logic is combined with that of preceding configuration sections.	Off	dh	B
AuthName auth-domain Authorization realm for use in HTTP authentication		dh	B
AuthnCacheContext directory|server|custom-string Specify a context string for use in the cache key		d	B
AuthnCacheEnable Enable Authn caching configured anywhere		s	B
AuthnCacheProvideFor authn-provider [...] Specify which authn provider(s) to cache for		dh	B
AuthnCacheSOCache provider-name[:provider-args] Select socache backend provider to use		s	B
AuthnCacheTimeout timeout (seconds) Set a timeout for cache entries		dh	B
<AuthnProviderAlias baseProvider Alias> ... </AuthnProviderAlias> Enclose a group of directives that represent an extension of a base authentication provider and referenced by the specified alias		s	B
AuthnzFcgiCheckAuthnProvider provider-name|None option ... Enables a FastCGI application to handle the check_authn authentication hook.		d	E
AuthnzFcgiDefineProvider type provider-name backend-address Defines a FastCGI application as a provider for authentication and/or authorization		s	E
AuthType None|Basic|Digest|Form Type of user authentication		dh	B
AuthUserFile file-path Sets the name of a text file containing the list of users and passwords for authentication		dh	B
AuthzDBDLoginToReferer On|Off Determines whether to redirect the Client to the Referring page on successful login or logout if a Referer request header is present	Off	d	E
AuthzDBDQuery query Specify the SQL Query for the required operation		d	E
AuthzDBDRedirectQuery query Specify a query to look up a login page for the user		d	E
AuthzDBMType default|SDBM|GDBM|NDBM|DB Sets the type of database file that is used to store list of user groups	default	dh	E
<AuthzProviderAlias baseProvider Alias Require-Parameters> ... </AuthzProviderAlias> Enclose a group of directives that represent an extension of a base authorization provider and referenced by the specified alias		s	B
AuthzSendForbiddenOnFailure On|Off Send '403 FORBIDDEN' instead of '401 UNAUTHORIZED' if authentication succeeds but authorization fails	Off	dh	B
BalancerGrowth # Number of additional Balancers that can be added Post-configuration	5	sv	E
BalancerInherit On|Off Inherit ProxyPassed Balancers/Workers from the main server	On	sv	E
BalancerMember [balancerurl] url [key=value [key=value ...]] Add a member to a load balancing group		d	E
BalancerPersist On|Off Attempt to persist changes made by the Balancer Manager across restarts.	Off	sv	E
BrotliAlterETag AddSuffix|NoChange|Remove How the outgoing ETag header should be modified during compression	AddSuffix	sv	E
BrotliCompressionMaxInputBlock value Maximum input block size		sv	E
BrotliCompressionQuality value Compression quality	5	sv	E
BrotliCompressionWindow value Brotli sliding compression window size	18	sv	E
BrotliFilterNote [type] notename Places the compression ratio in a note for logging		sv	E
BrowserMatch regex [!]env-variable[=value] [[!]env-variable[=value]] ... Sets environment variables conditional on HTTP User-Agent		svdh	B
BrowserMatchNoCase regex [!]env-variable[=value] [[!]env-variable[=value]] ... Sets environment variables conditional on User-Agent without respect to case		svdh	B
BufferedLogs On|Off Buffer log entries in memory before writing to disk	Off	s	B
BufferSize integer Maximum size in bytes to buffer by the buffer filter	131072	svdh	E
CacheDefaultExpire seconds The default duration to cache a document when no expiry date is specified.	3600 (one hour)	svdh	E
CacheDetailHeader on|off Add an X-Cache-Detail header to the response.	off	svdh	E
CacheDirLength length The number of characters in subdirectory names	2	sv	E
CacheDirLevels levels The number of levels of subdirectories in the cache.	2	sv	E
CacheDisable url-string | on Disable caching of specified URLs		svdh	E
CacheEnable cache_type [url-string] Enable caching of specified URLs using a specified storage manager		svd	E
CacheFile file-path [file-path] ... Cache a list of file handles at startup time		s	X
CacheHeader on|off Add an X-Cache header to the response.	off	svdh	E
CacheIgnoreCacheControl On|Off Ignore request to not serve cached content to client	Off	sv	E
CacheIgnoreHeaders header-string [header-string] ... Do not store the given HTTP header(s) in the cache.	None	sv	E
CacheIgnoreNoLastMod On|Off Ignore the fact that a response has no Last Modified header.	Off	svdh	E
CacheIgnoreQueryString On|Off Ignore query string when caching	Off	sv	E
CacheIgnoreURLSessionIdentifiers identifier [identifier] ... Ignore defined session identifiers encoded in the URL when caching	None	sv	E
CacheKeyBaseURL URL Override the base URL of reverse proxied cache keys.	http://example.com	sv	E
CacheLastModifiedFactor float The factor used to compute an expiry date based on the LastModified date.	0.1	svdh	E
CacheLock on|off Enable the thundering herd lock.	off	sv	E
CacheLockMaxAge integer Set the maximum possible age of a cache lock.	5	sv	E
CacheLockPath directory Set the lock path directory.	/tmp/mod_cache-lock +	sv	E
CacheMaxExpire seconds The maximum time in seconds to cache a document	86400 (one day)	svdh	E
CacheMaxFileSize bytes The maximum size (in bytes) of a document to be placed in the cache	1000000	svdh	E
CacheMinExpire seconds The minimum time in seconds to cache a document	0	svdh	E
CacheMinFileSize bytes The minimum size (in bytes) of a document to be placed in the cache	1	svdh	E
CacheNegotiatedDocs On|Off Allows content-negotiated documents to be cached by proxy servers	Off	sv	B
CacheQuickHandler on|off Run the cache from the quick handler.	on	sv	E
CacheReadSize bytes The minimum size (in bytes) of the document to read and be cached before sending the data downstream	0	svdh	E
CacheReadTime milliseconds The minimum time (in milliseconds) that should elapse while reading before data is sent downstream	0	svdh	E
CacheRoot directory The directory root under which cache files are stored		sv	E
CacheSocache type[:args] The shared object cache implementation to use		sv	E
CacheSocacheMaxSize bytes The maximum size (in bytes) of an entry to be placed in the cache	102400	svdh	E
CacheSocacheMaxTime seconds The maximum time (in seconds) for a document to be placed in the cache	86400	svdh	E
CacheSocacheMinTime seconds The minimum time (in seconds) for a document to be placed in the cache	600	svdh	E
CacheSocacheReadSize bytes The minimum size (in bytes) of the document to read and be cached before sending the data downstream	0	svdh	E
CacheSocacheReadTime milliseconds The minimum time (in milliseconds) that should elapse while reading before data is sent downstream	0	svdh	E
CacheStaleOnError on|off Serve stale content in place of 5xx responses.	on	svdh	E
CacheStoreExpired On|Off Attempt to cache responses that the server reports as expired	Off	svdh	E
CacheStoreNoStore On|Off Attempt to cache requests or responses that have been marked as no-store.	Off	svdh	E
CacheStorePrivate On|Off Attempt to cache responses that the server has marked as private	Off	svdh	E
CGIDScriptTimeout time[s|ms] The length of time to wait for more output from the CGI program		svdh	B
CGIMapExtension cgi-path .extension Technique for locating the interpreter for CGI scripts		dh	C
CGIPassAuth On|Off Enables passing HTTP authorization headers to scripts as CGI variables	Off	dh	C
CGIVar variable rule Controls how some CGI variables are set		dh	C
CharsetDefault charset Charset to translate into		svdh	E
CharsetOptions option [option] ... Configures charset translation behavior	ImplicitAdd	svdh	E
CharsetSourceEnc charset Source charset of files		svdh	E
CheckCaseOnly on|off Limits the action of the speling module to case corrections	Off	svdh	E
CheckSpelling on|off Enables the spelling module	Off	svdh	E
ChrootDir /path/to/directory Directory for apache to run chroot(8) after startup.		s	B
ContentDigest On|Off Enables the generation of Content-MD5 HTTP Response headers	Off	svdh	C
CookieDomain domain The domain to which the tracking cookie applies		svdh	E
CookieExpires expiry-period Expiry time for the tracking cookie		svdh	E
CookieName token Name of the tracking cookie	Apache	svdh	E
CookieStyle Netscape|Cookie|Cookie2|RFC2109|RFC2965 Format of the cookie header field	Netscape	svdh	E
CookieTracking on|off Enables tracking cookie	off	svdh	E
CoreDumpDirectory directory Directory where Apache HTTP Server attempts to switch before dumping core		s	M
CustomLog file|pipe format|nickname [env=[!]environment-variable| expr=expression] Sets filename and format of log file		sv	B
Dav On|Off|provider-name Enable WebDAV HTTP methods	Off	d	E
DavDepthInfinity on|off Allow PROPFIND, Depth: Infinity requests	off	svd	E
DavGenericLockDB file-path Location of the DAV lock database		svd	E
DavLockDB file-path Location of the DAV lock database		sv	E
DavMinTimeout seconds Minimum amount of time the server holds a lock on a DAV resource	0	svd	E
DBDExptime time-in-seconds Keepalive time for idle connections	300	sv	E
DBDInitSQL "SQL statement" Execute an SQL statement after connecting to a database		sv	E
DBDKeep number Maximum sustained number of connections	2	sv	E
DBDMax number Maximum number of connections	10	sv	E
DBDMin number Minimum number of connections	1	sv	E
DBDParams param1=value1[,param2=value2] Parameters for database connection		sv	E
DBDPersist On|Off Whether to use persistent connections		sv	E
DBDPrepareSQL "SQL statement" label Define an SQL prepared statement		sv	E
DBDriver name Specify an SQL driver		sv	E
DefaultIcon url-path Icon to display for files when no specific icon is configured		svdh	B
DefaultLanguage language-tag Defines a default language-tag to be sent in the Content-Language header field for all resources in the current context that have not been assigned a language-tag by some other means.		svdh	B
DefaultRuntimeDir directory-path Base directory for the server run-time files	DEFAULT_REL_RUNTIME +	s	C
DefaultType media-type|none This directive has no effect other than to emit warnings if the value is not none. In prior versions, DefaultType would specify a default media type to assign to response content for which no other media type configuration could be found.	none	svdh	C
Define parameter-name [parameter-value] Define a variable		svd	C
DeflateBufferSize value Fragment size to be compressed at one time by zlib	8096	sv	E
DeflateCompressionLevel value How much compression do we apply to the output		sv	E
DeflateFilterNote [type] notename Places the compression ratio in a note for logging		sv	E
DeflateInflateLimitRequestBodyvalue Maximum size of inflated request bodies		svdh	E
DeflateInflateRatioBurst value Maximum number of times the inflation ratio for request bodies can be crossed		svdh	E
DeflateInflateRatioLimit value Maximum inflation ratio for request bodies		svdh	E
DeflateMemLevel value How much memory should be used by zlib for compression	9	sv	E
DeflateWindowSize value Zlib compression window size	15	sv	E
Deny from all|host|env=[!]env-variable [host|env=[!]env-variable] ... Controls which hosts are denied access to the server		dh	E
<Directory directory-path> ... </Directory> Enclose a group of directives that apply only to the named file-system directory, sub-directories, and their contents.		sv	C
DirectoryCheckHandler On|Off Toggle how this module responds when another handler is configured	Off	svdh	B
DirectoryIndex disabled | local-url [local-url] ... List of resources to look for when the client requests a directory	index.html	svdh	B
DirectoryIndexRedirect on | off | permanent | temp | seeother | 3xx-code Configures an external redirect for directory indexes.	off	svdh	B
<DirectoryMatch regex> ... </DirectoryMatch> Enclose directives that apply to the contents of file-system directories matching a regular expression.		sv	C
DirectorySlash On|Off Toggle trailing slash redirects on or off	On	svdh	B
DocumentRoot directory-path Directory that forms the main document tree visible from the web	"/usr/local/apache/ +	sv	C
DTracePrivileges On|Off Determines whether the privileges required by dtrace are enabled.	Off	s	X
DumpIOInput On|Off Dump all input data to the error log	Off	s	E
DumpIOOutput On|Off Dump all output data to the error log	Off	s	E
<Else ... </Else> Contains directives that apply only if the condition of a previous <If or <ElseIf section is not satisfied by a request at runtime		svdh	C
<ElseIf expression> ... </ElseIf> Contains directives that apply only if a condition is satisfied by a request at runtime while the condition of a previous <If or <ElseIf section is not satisfied		svdh	C
EnableExceptionHook On|Off Enables a hook that runs exception handlers after a crash	Off	s	M
EnableMMAP On|Off Use memory-mapping to read files during delivery	On	svdh	C
EnableSendfile On|Off Use the kernel sendfile support to deliver files to the client	Off	svdh	C
Error message Abort configuration parsing with a custom error message		svdh	C
ErrorDocument error-code document What the server will return to the client in case of an error		svdh	C
ErrorLog file-path|syslog[:facility] Location where the server will log errors	logs/error_log (Uni +)	sv	C
ErrorLogFormat [connection|request] format Format specification for error log entries		sv	C
Example Demonstration directive to illustrate the Apache module API		svdh	X
ExpiresActive On|Off Enables generation of Expires headers	Off	svdh	E
ExpiresByType MIME-type <code>seconds Value of the Expires header configured by MIME type		svdh	E
ExpiresDefault <code>seconds Default algorithm for calculating expiration time		svdh	E
ExtendedStatus On|Off Keep track of extended status information for each request	Off[*]	s	C
ExtFilterDefine filtername parameters Define an external filter		s	E
ExtFilterOptions option [option] ... Configure mod_ext_filter options	NoLogStderr	d	E
FallbackResource disabled | local-url Define a default URL for requests that don't map to a file		svdh	B
FileETag component ... File attributes used to create the ETag HTTP response header for static files	MTime Size	svdh	C
<Files filename> ... </Files> Contains directives that apply to matched filenames		svdh	C
<FilesMatch regex> ... </FilesMatch> Contains directives that apply to regular-expression matched filenames		svdh	C
FilterChain [+=-@!]filter-name ... Configure the filter chain		svdh	B
FilterDeclare filter-name [type] Declare a smart filter		svdh	B
FilterProtocol filter-name [provider-name] proto-flags Deal with correct HTTP protocol handling		svdh	B
FilterProvider filter-name provider-name expression Register a content filter		svdh	B
FilterTrace filter-name level Get debug/diagnostic information from mod_filter		svd	B
ForceLanguagePriority None|Prefer|Fallback [Prefer|Fallback] Action to take if a single acceptable document is not found	Prefer	svdh	B
ForceType media-type|None Forces all matching files to be served with the specified media type in the HTTP Content-Type header field		dh	C
ForensicLog filename|pipe Sets filename of the forensic log		sv	E
GlobalLogfile|pipe format|nickname [env=[!]environment-variable| expr=expression] Sets filename and format of log file		s	B
GprofDir /tmp/gprof/|/tmp/gprof/% Directory to write gmon.out profiling data to.		sv	C
GracefulShutdownTimeout seconds Specify a timeout after which a gracefully shutdown server will exit.	0	s	M
Group unix-group Group under which the server will answer requests	#-1	s	B
H2CopyFiles on|off Determine file handling in responses	off	svdh	E
H2Direct on|off H2 Direct Protocol Switch	on for h2c, off for +	sv	E
H2EarlyHints on|off Determine sending of 103 status codes	off	sv	E
H2MaxSessionStreams n Maximum number of active streams per HTTP/2 session.	100	sv	E
H2MaxWorkerIdleSeconds n Maximum number of seconds h2 workers remain idle until shut down.	600	s	E
H2MaxWorkers n Maximum number of worker threads to use per child process.		s	E
H2MinWorkers n Minimal number of worker threads to use per child process.		s	E
H2ModernTLSOnly on|off Require HTTP/2 connections to be "modern TLS" only	on	sv	E
H2Push on|off H2 Server Push Switch	on	sv	E
H2PushDiarySize n H2 Server Push Diary Size	256	sv	E
H2PushPriority mime-type [after|before|interleaved] [weight] H2 Server Push Priority	* After 16	sv	E
H2PushResource [add] path [critical] Declares resources for early pushing to the client		svdh	E
H2SerializeHeaders on|off Serialize Request/Response Processing Switch	off	sv	E
H2StreamMaxMemSize bytes Maximum amount of output data buffered per stream.	65536	sv	E
H2TLSCoolDownSecs seconds	1	sv	E
H2TLSWarmUpSize amount -	1048576	sv	E
H2Upgrade on|off H2 Upgrade Protocol Switch	on for h2c, off for +	sv	E
H2WindowSize bytes Size of Stream Window for upstream data.	65535	sv	E
Header [condition] add|append|echo|edit|edit*|merge|set|setifempty|unset|note header [[expr=]value [replacement] [early|env=[!]varname|expr=expression]] Configure HTTP response headers		svdh	E
HeaderName filename Name of the file that will be inserted at the top of the index listing		svdh	B
HeartbeatAddress addr:port Multicast address for heartbeat packets		s	X
HeartbeatListenaddr:port multicast address to listen for incoming heartbeat requests		s	X
HeartbeatMaxServers number-of-servers Specifies the maximum number of servers that will be sending heartbeat requests to this server	10	s	X
HeartbeatStorage file-path Path to store heartbeat data	logs/hb.dat	s	X
HeartbeatStorage file-path Path to read heartbeat data	logs/hb.dat	s	X
HostnameLookups On|Off|Double Enables DNS lookups on client IP addresses	Off	svd	C
HttpProtocolOptions [Strict|Unsafe] [RegisteredMethods|LenientMethods] Modify restrictions on HTTP Request Messages [Allow0.9|Require1.0]	Strict LenientMetho +	sv	C
IdentityCheck On|Off Enables logging of the RFC 1413 identity of the remote user	Off	svd	E
IdentityCheckTimeout seconds Determines the timeout duration for ident requests	30	svd	E
<If expression> ... </If> Contains directives that apply only if a condition is satisfied by a request at runtime		svdh	C
<IfDefine [!]parameter-name> ... </IfDefine> Encloses directives that will be processed only if a test is true at startup		svdh	C
<IfModule [!]module-file|module-identifier> ... </IfModule> Encloses directives that are processed conditional on the presence or absence of a specific module		svdh	C
<IfVersion [[!]operator] version> ... </IfVersion> contains version dependent configuration		svdh	E
ImapBase map|referer|URL Default base for imagemap files	http://servername/	svdh	B
ImapDefault error|nocontent|map|referer|URL Default action when an imagemap is called with coordinates that are not explicitly mapped	nocontent	svdh	B
ImapMenu none|formatted|semiformatted|unformatted Action if no coordinates are given when calling an imagemap	formatted	svdh	B
Include file-path|directory-path|wildcard Includes other configuration files from within the server configuration files		svd	C
IncludeOptional file-path|directory-path|wildcard Includes other configuration files from within the server configuration files		svd	C
IndexHeadInsert "markup ..." Inserts text in the HEAD section of an index page.		svdh	B
IndexIgnore file [file] ... Adds to the list of files to hide when listing a directory	"."	svdh	B
IndexIgnoreReset ON|OFF Empties the list of files to hide when listing a directory		svdh	B
IndexOptions [+|-]option [[+|-]option] ... Various configuration settings for directory indexing		svdh	B
IndexOrderDefault Ascending|Descending Name|Date|Size|Description Sets the default ordering of the directory index	Ascending Name	svdh	B
IndexStyleSheet url-path Adds a CSS stylesheet to the directory index		svdh	B
InputSed sed-command Sed command to filter request data (typically POST data)		dh	X
ISAPIAppendLogToErrors on|off Record HSE_APPEND_LOG_PARAMETER requests from ISAPI extensions to the error log	off	svdh	B
ISAPIAppendLogToQuery on|off Record HSE_APPEND_LOG_PARAMETER requests from ISAPI extensions to the query field	on	svdh	B
ISAPICacheFile file-path [file-path] ... ISAPI .dll files to be loaded at startup		sv	B
ISAPIFakeAsync on|off Fake asynchronous support for ISAPI callbacks	off	svdh	B
ISAPILogNotSupported on|off Log unsupported feature requests from ISAPI extensions	off	svdh	B
ISAPIReadAheadBuffer size Size of the Read Ahead Buffer sent to ISAPI extensions	49152	svdh	B
KeepAlive On|Off Enables HTTP persistent connections	On	sv	C
KeepAliveTimeout num[ms] Amount of time the server will wait for subsequent requests on a persistent connection	5	sv	C
KeptBodySize maximum size in bytes Keep the request body instead of discarding it up to the specified maximum size, for potential use by filters such as mod_include.	0	d	B
LanguagePriority MIME-lang [MIME-lang] ... The precedence of language variants for cases where the client does not express a preference		svdh	B
LDAPCacheEntries number Maximum number of entries in the primary LDAP cache	1024	s	E
LDAPCacheTTL seconds Time that cached items remain valid	600	s	E
LDAPConnectionPoolTTL n Discard backend connections that have been sitting in the connection pool too long	-1	sv	E
LDAPConnectionTimeout seconds Specifies the socket connection timeout in seconds		s	E
LDAPLibraryDebug 7 Enable debugging in the LDAP SDK		s	E
LDAPOpCacheEntries number Number of entries used to cache LDAP compare operations	1024	s	E
LDAPOpCacheTTL seconds Time that entries in the operation cache remain valid	600	s	E
LDAPReferralHopLimit number The maximum number of referral hops to chase before terminating an LDAP query.		dh	E
LDAPReferrals On|Off|default Enable referral chasing during queries to the LDAP server.	On	dh	E
LDAPRetries number-of-retries Configures the number of LDAP server retries.	3	s	E
LDAPRetryDelay seconds Configures the delay between LDAP server retries.	0	s	E
LDAPSharedCacheFile directory-path/filename Sets the shared memory cache file		s	E
LDAPSharedCacheSize bytes Size in bytes of the shared-memory cache	500000	s	E
LDAPTimeout seconds Specifies the timeout for LDAP search and bind operations, in seconds	60	s	E
LDAPTrustedClientCert type directory-path/filename/nickname [password] Sets the file containing or nickname referring to a per connection client certificate. Not all LDAP toolkits support per connection client certificates.		dh	E
LDAPTrustedGlobalCert type directory-path/filename [password] Sets the file or database containing global trusted Certificate Authority or global client certificates		s	E
LDAPTrustedMode type Specifies the SSL/TLS mode to be used when connecting to an LDAP server.		sv	E
LDAPVerifyServerCert On|Off Force server certificate verification	On	s	E
<Limit method [method] ... > ... </Limit> Restrict enclosed access controls to only certain HTTP methods		dh	C
<LimitExcept method [method] ... > ... </LimitExcept> Restrict access controls to all HTTP methods except the named ones		dh	C
LimitInternalRecursion number [number] Determine maximum number of internal redirects and nested subrequests	10	sv	C
LimitRequestBody bytes Restricts the total size of the HTTP request body sent from the client	0	svdh	C
LimitRequestFields number Limits the number of HTTP request header fields that will be accepted from the client	100	sv	C
LimitRequestFieldSize bytes Limits the size of the HTTP request header allowed from the client	8190	sv	C
LimitRequestLine bytes Limit the size of the HTTP request line that will be accepted from the client	8190	sv	C
LimitXMLRequestBody bytes Limits the size of an XML-based request body	1000000	svdh	C
Listen [IP-address:]portnumber [protocol] IP addresses and ports that the server listens to		s	M
ListenBacklog backlog Maximum length of the queue of pending connections		s	M
ListenCoresBucketsRatio ratio Ratio between the number of CPU cores (online) and the number of listeners' buckets	0 (disabled)	s	M
LoadFile filename [filename] ... Link in the named object file or library		sv	E
LoadModule module filename Links in the object file or library, and adds to the list of active modules		sv	E
<Location URL-path|URL> ... </Location> Applies the enclosed directives only to matching URLs		sv	C
<LocationMatch regex> ... </LocationMatch> Applies the enclosed directives only to regular-expression matching URLs		sv	C
LogFormat format|nickname [nickname] Describes a format for use in a log file	"%h %l %u %t \"%r\" +	sv	B
LogIOTrackTTFB ON|OFF Enable tracking of time to first byte (TTFB)	OFF	svdh	E
LogLevel [module:]level [module:level] ... Controls the verbosity of the ErrorLog	warn	svd	C
LogMessage message [hook=hook] [expr=expression] Log user-defined message to error log		d	X
LuaAuthzProvider provider_name /path/to/lua/script.lua function_name Plug an authorization provider function into mod_authz_core		s	X
LuaCodeCache stat|forever|never Configure the compiled code cache.	stat	svdh	X
LuaHookAccessChecker /path/to/lua/script.lua hook_function_name [early|late] Provide a hook for the access_checker phase of request processing		svdh	X
LuaHookAuthChecker /path/to/lua/script.lua hook_function_name [early|late] Provide a hook for the auth_checker phase of request processing		svdh	X
LuaHookCheckUserID /path/to/lua/script.lua hook_function_name [early|late] Provide a hook for the check_user_id phase of request processing		svdh	X
LuaHookFixups /path/to/lua/script.lua hook_function_name Provide a hook for the fixups phase of a request processing		svdh	X
LuaHookInsertFilter /path/to/lua/script.lua hook_function_name Provide a hook for the insert_filter phase of request processing		svdh	X
LuaHookLog /path/to/lua/script.lua log_function_name Provide a hook for the access log phase of a request processing		svdh	X
LuaHookMapToStorage /path/to/lua/script.lua hook_function_name Provide a hook for the map_to_storage phase of request processing		svdh	X
LuaHookTranslateName /path/to/lua/script.lua hook_function_name [early|late] Provide a hook for the translate name phase of request processing		sv	X
LuaHookTypeChecker /path/to/lua/script.lua hook_function_name Provide a hook for the type_checker phase of request processing		svdh	X
LuaInherit none|parent-first|parent-last Controls how parent configuration sections are merged into children	parent-first	svdh	X
LuaInputFilter filter_name /path/to/lua/script.lua function_name Provide a Lua function for content input filtering		s	X
LuaMapHandler uri-pattern /path/to/lua/script.lua [function-name] Map a path to a lua handler		svdh	X
LuaOutputFilter filter_name /path/to/lua/script.lua function_name Provide a Lua function for content output filtering		s	X
LuaPackageCPath /path/to/include/?.soa Add a directory to lua's package.cpath		svdh	X
LuaPackagePath /path/to/include/?.lua Add a directory to lua's package.path		svdh	X
LuaQuickHandler /path/to/script.lua hook_function_name Provide a hook for the quick handler of request processing		sv	X
LuaRoot /path/to/a/directory Specify the base path for resolving relative paths for mod_lua directives		svdh	X
LuaScope once|request|conn|thread|server [min] [max] One of once, request, conn, thread -- default is once	once	svdh	X
<Macro name [par1 .. parN]> ... </Macro> Define a configuration file macro		svd	B
MaxConnectionsPerChild number Limit on the number of connections that an individual child server will handle during its life	0	s	M
MaxKeepAliveRequests number Number of requests allowed on a persistent connection	100	sv	C
MaxMemFree KBytes Maximum amount of memory that the main allocator is allowed to hold without calling free()	2048	s	M
MaxRangeOverlaps default | unlimited | none | number-of-ranges Number of overlapping ranges (eg: 100-200,150-300) allowed before returning the complete resource	20	svd	C
MaxRangeReversals default | unlimited | none | number-of-ranges Number of range reversals (eg: 100-200,50-70) allowed before returning the complete resource	20	svd	C
MaxRanges default | unlimited | none | number-of-ranges Number of ranges allowed before returning the complete resource	200	svd	C
MaxRequestWorkers number Maximum number of connections that will be processed simultaneously		s	M
MaxSpareServers number Maximum number of idle child server processes	10	s	M
MaxSpareThreads number Maximum number of idle threads		s	M
MaxThreads number Set the maximum number of worker threads	2048	s	M
MemcacheConnTTL num[units] Keepalive time for idle connections	15s	sv	E
MergeTrailers [on|off] Determines whether trailers are merged into headers	off	sv	C
MetaDir directory Name of the directory to find CERN-style meta information files	.web	svdh	E
MetaFiles on|off Activates CERN meta-file processing	off	svdh	E
MetaSuffix suffix File name suffix for the file containing CERN-style meta information	.meta	svdh	E
MimeMagicFile file-path Enable MIME-type determination based on file contents using the specified magic file		sv	E
MinSpareServers number Minimum number of idle child server processes	5	s	M
MinSpareThreads number Minimum number of idle threads available to handle request spikes		s	M
MMapFile file-path [file-path] ... Map a list of files into memory at startup time		s	X
ModemStandard V.21|V.26bis|V.32|V.34|V.92 Modem standard to simulate		d	X
ModMimeUsePathInfo On|Off Tells mod_mime to treat path_info components as part of the filename	Off	d	B
MultiviewsMatch Any|NegotiatedOnly|Filters|Handlers [Handlers|Filters] The types of files that will be included when searching for a matching file with MultiViews	NegotiatedOnly	svdh	B
Mutex mechanism [default|mutex-name] ... [OmitPID] Configures mutex mechanism and lock file directory for all or specified mutexes	default	s	C
NameVirtualHost addr[:port] DEPRECATED: Designates an IP address for name-virtual hosting		s	C
NoProxy host [host] ... Hosts, domains, or networks that will be connected to directly		sv	E
NWSSLTrustedCerts filename [filename] ... List of additional client certificates		s	B
NWSSLUpgradeable [IP-address:]portnumber Allows a connection to be upgraded to an SSL connection upon request		s	B
Options [+|-]option [[+|-]option] ... Configures what features are available in a particular directory	FollowSymlinks	svdh	C
Order ordering Controls the default access state and the order in which Allow and Deny are evaluated.	Deny,Allow	dh	E
OutputSed sed-command Sed command for filtering response content		dh	X
PassEnv env-variable [env-variable] ... Passes environment variables from the shell		svdh	B
PidFile filename File where the server records the process ID of the daemon	logs/httpd.pid	s	M
PrivilegesMode FAST|SECURE|SELECTIVE Trade off processing speed and efficiency vs security against malicious privileges-aware code.	FAST	svd	X
Protocol protocol Protocol for a listening socket		sv	C
ProtocolEcho On|Off Turn the echo server on or off	Off	sv	X
Protocols protocol ... Protocols available for a server/virtual host	http/1.1	sv	C
ProtocolsHonorOrder On|Off Determines if order of Protocols determines precedence during negotiation	On	sv	C
<Proxy wildcard-url> ...</Proxy> Container for directives applied to proxied resources		sv	E
ProxyAddHeaders Off|On Add proxy information in X-Forwarded-* headers	On	svd	E
ProxyBadHeader IsError|Ignore|StartBody Determines how to handle bad header lines in a response	IsError	sv	E
ProxyBlock *|word|host|domain [word|host|domain] ... Words, hosts, or domains that are banned from being proxied		sv	E
ProxyDomain Domain Default domain name for proxied requests		sv	E
ProxyErrorOverride On|Off Override error pages for proxied content	Off	svd	E
ProxyExpressDBMFile <pathname> Pathname to DBM file.		sv	E
ProxyExpressDBMFile <type> DBM type of file.		sv	E
ProxyExpressEnable [on|off] Enable the module functionality.		sv	E
ProxyFCGIBackendType FPM|GENERIC Specify the type of backend FastCGI application	FPM	svdh	E
ProxyFCGISetEnvIf conditional-expression [!]environment-variable-name [value-expression] a href="http://setgetweb.com/p/Apache24/mod/mod_access_compat.html#allow">Allow variables sent to FastCGI servers to be fixed up		svdh	E
ProxyFtpDirCharset character set Define the character set for proxied FTP listings	ISO-8859-1	svd	E
ProxyFtpEscapeWildcards [on|off] Whether wildcards in requested filenames are escaped when sent to the FTP server		svd	E
ProxyFtpListOnWildcard [on|off] Whether wildcards in requested filenames trigger a file listing		svd	E
ProxyHCExpr name {ap_expr expression} Creates a named condition expression to use to determine health of the backend based on its response.		sv	E
ProxyHCTemplate name parameter=setting <...> Creates a named template for setting various health check parameters		sv	E
ProxyHCTPsize <size> Sets the total server-wide size of the threadpool used for the health check workers.		s	E
ProxyHTMLBufSize bytes Sets the buffer size increment for buffering inline scripts and stylesheets.		svd	B
ProxyHTMLCharsetOut Charset | * ProxyHTMLDocType fpi [SGML|XML] Specify a charset for mod_proxy_html output.		svd	B
ProxyHTMLDocType HTML|XHTML [Legacy] OR Sets an HTML or XHTML document type declaration.		svd	B
ProxyHTMLEnable On|Off Turns the proxy_html filter on or off.	Off	svd	B
ProxyHTMLEvents attribute [attribute ...] Specify attributes to treat as scripting events.		svd	B
ProxyHTMLExtended On|Off Determines whether to fix links in inline scripts, stylesheets, and scripting events.	Off	svd	B
ProxyHTMLFixups [lowercase] [dospath] [reset] Fixes for simple HTML errors.		svd	B
ProxyHTMLInterp On|Off Enables per-request interpolation of ProxyHTMLURLMap rules.	Off	svd	B
ProxyHTMLLinks element attribute [attribute2 ...] Specify HTML elements that have URL attributes to be rewritten.		svd	B
ProxyHTMLMeta On|Off Turns on or off extra pre-parsing of metadata in HTML <head> sections.	Off	svd	B
ProxyHTMLStripComments On|Off Determines whether to strip HTML comments.	Off	svd	B
ProxyHTMLURLMap from-pattern to-pattern [flags] [cond] Defines a rule to rewrite HTML links		svd	B
ProxyIOBufferSize bytes Determine size of internal data throughput buffer	8192	sv	E
<ProxyMatch regex> ...</ProxyMatch> Container for directives applied to regular-expression-matched proxied resources		sv	E
ProxyMaxForwards number Maximium number of proxies that a request can be forwarded through	-1	sv	E
ProxyPass [path] !|url [key=value [key=value ...]] [nocanon] [interpolate] [noquery] Maps remote servers into the local server URL-space		svd	E
ProxyPassInherit On|Off Inherit ProxyPass directives defined from the main server	On	sv	E
ProxyPassInterpolateEnv On|Off Enable Environment Variable interpolation in Reverse Proxy configurations	Off	svd	E
ProxyPassMatch [regex] !|url [key=value [key=value ...]] Maps remote servers into the local server URL-space using regular expressions		svd	E
ProxyPassReverse [path] url [interpolate] Adjusts the URL in HTTP response headers sent from a reverse proxied server		svd	E
ProxyPassReverseCookieDomain internal-domain public-domain [interpolate] Adjusts the Domain string in Set-Cookie headers from a reverse- proxied server		svd	E
ProxyPassReverseCookiePath internal-path public-path [interpolate] Adjusts the Path string in Set-Cookie headers from a reverse- proxied server		svd	E
ProxyPreserveHost On|Off Use incoming Host HTTP request header for proxy request	Off	svd	E
ProxyReceiveBufferSize bytes Network buffer size for proxied HTTP and FTP connections	0	sv	E
ProxyRemote match remote-server Remote proxy used to handle certain requests		sv	E
ProxyRemoteMatch regex remote-server Remote proxy used to handle requests matched by regular expressions		sv	E
ProxyRequests On|Off Enables forward (standard) proxy requests	Off	sv	E
ProxySCGIInternalRedirect On|Off|Headername Enable or disable internal redirect responses from the backend	On	svd	E
ProxySCGISendfile On|Off|Headername Enable evaluation of X-Sendfile pseudo response header	Off	svd	E
ProxySet url key=value [key=value ...] Set various Proxy balancer or member parameters		d	E
ProxySourceAddress address Set local IP address for outgoing proxy connections		sv	E
ProxyStatus Off|On|Full Show Proxy LoadBalancer status in mod_status	Off	sv	E
ProxyTimeout seconds Network timeout for proxied requests		sv	E
ProxyVia On|Off|Full|Block Information provided in the Via HTTP response header for proxied requests	Off	sv	E
QualifyRedirectURL ON|OFF Controls whether the REDIRECT_URL environment variable is fully qualified	OFF	svd	C
ReadmeName filename Name of the file that will be inserted at the end of the index listing		svdh	B
ReceiveBufferSize bytes TCP receive buffer size	0	s	M
Redirect [status] [URL-path] URL Sends an external redirect asking the client to fetch a different URL		svdh	B
RedirectMatch [status] regex URL Sends an external redirect based on a regular expression match of the current URL		svdh	B
RedirectPermanent URL-path URL Sends an external permanent redirect asking the client to fetch a different URL		svdh	B
RedirectTemp URL-path URL Sends an external temporary redirect asking the client to fetch a different URL		svdh	B
ReflectorHeader inputheader [outputheader] Reflect an input header to the output headers		svdh	B
RegisterHttpMethod method [method [...]] Register non-standard HTTP methods		s	C
RemoteIPHeader header-field Declare the header field which should be parsed for useragent IP addresses		sv	B
RemoteIPInternalProxy proxy-ip|proxy-ip/subnet|hostname ... Declare client intranet IP addresses trusted to present the RemoteIPHeader value		sv	B
RemoteIPInternalProxyList filename Declare client intranet IP addresses trusted to present the RemoteIPHeader value		sv	B
RemoteIPProxiesHeader HeaderFieldName Declare the header field which will record all intermediate IP addresses		sv	B
RemoteIPTrustedProxy proxy-ip|proxy-ip/subnet|hostname ... Declare client intranet IP addresses trusted to present the RemoteIPHeader value		sv	B
RemoteIPTrustedProxyList filename Declare client intranet IP addresses trusted to present the RemoteIPHeader value		sv	B
RemoveCharset extension [extension] ... Removes any character set associations for a set of file extensions		vdh	B
RemoveEncoding extension [extension] ... Removes any content encoding associations for a set of file extensions		vdh	B
RemoveHandler extension [extension] ... Removes any handler associations for a set of file extensions		vdh	B
RemoveInputFilter extension [extension] ... Removes any input filter associations for a set of file extensions		vdh	B
RemoveLanguage extension [extension] ... Removes any language associations for a set of file extensions		vdh	B
RemoveOutputFilter extension [extension] ... Removes any output filter associations for a set of file extensions		vdh	B
RemoveType extension [extension] ... Removes any content type associations for a set of file extensions		vdh	B
RequestHeader add|append|edit|edit*|merge|set|setifempty|unset header [[expr=]value [replacement] [early|env=[!]varname|expr=expression]] Configure HTTP request headers		svdh	E
RequestReadTimeout [header=timeout[-maxtimeout][,MinRate=rate] [body=timeout[-maxtimeout][,MinRate=rate] Set timeout values for receiving request headers and body from client.		sv	E
Require [not] entity-name [entity-name] ... Tests whether an authenticated user is authorized by an authorization provider.		dh	B
<RequireAll> ... </RequireAll> Enclose a group of authorization directives of which none must fail and at least one must succeed for the enclosing directive to succeed.		dh	B
<RequireAny> ... </RequireAny> Enclose a group of authorization directives of which one must succeed for the enclosing directive to succeed.		dh	B
<RequireNone> ... </RequireNone> Enclose a group of authorization directives of which none must succeed for the enclosing directive to not fail.		dh	B
RewriteBase URL-path Sets the base URL for per-directory rewrites		dh	E
RewriteCond TestString CondPattern [flags] Defines a condition under which rewriting will take place		svdh	E
RewriteEngine on|off Enables or disables runtime rewriting engine	off	svdh	E
RewriteMap MapName MapType:MapSource Defines a mapping function for key-lookup		sv	E
RewriteOptions Options Sets some special options for the rewrite engine		svdh	E
RewriteRule Pattern Substitution [flags] Defines rules for the rewriting engine		svdh	E
RLimitCPU seconds|max [seconds|max] Limits the CPU consumption of processes launched by Apache httpd children		svdh	C
RLimitMEM bytes|max [bytes|max] Limits the memory consumption of processes launched by Apache httpd children		svdh	C
RLimitNPROC number|max [number|max] Limits the number of processes that can be launched by processes launched by Apache httpd children		svdh	C
Satisfy Any|All Interaction between host-level access control and user authentication	All	dh	E
ScoreBoardFile file-path Location of the file used to store coordination data for the child processes	logs/apache_runtime +	s	M
Script method cgi-script Activates a CGI script for a particular request method.		svd	B
ScriptAlias [URL-path] file-path|directory-path Maps a URL to a filesystem location and designates the target as a CGI script		svd	B
ScriptAliasMatch regex file-path|directory-path Maps a URL to a filesystem location using a regular expression and designates the target as a CGI script		sv	B
ScriptInterpreterSource Registry|Registry-Strict|Script Technique for locating the interpreter for CGI scripts	Script	svdh	C
ScriptLog file-path Location of the CGI script error logfile		sv	B
ScriptLogBuffer bytes Maximum amount of PUT or POST requests that will be recorded in the scriptlog	1024	sv	B
ScriptLogLength bytes Size limit of the CGI script logfile	10385760	sv	B
ScriptSock file-path The filename prefix of the socket to use for communication with the cgi daemon	cgisock	s	B
SecureListen [IP-address:]portnumber Certificate-Name [MUTUAL] Enables SSL encryption for the specified port		s	B
SeeRequestTail On|Off Determine if mod_status displays the first 63 characters of a request or the last 63, assuming the request itself is greater than 63 chars.	Off	s	C
SendBufferSize bytes TCP buffer size	0	s	M
ServerAdmin email-address|URL Email address that the server includes in error messages sent to the client		sv	C
ServerAlias hostname [hostname] ... Alternate names for a host used when matching requests to name-virtual hosts		v	C
ServerLimit number Upper limit on configurable number of processes		s	M
ServerName [scheme://]domain-name|ip-address[:port] Hostname and port that the server uses to identify itself		sv	C
ServerPath URL-path Legacy URL pathname for a name-based virtual host that is accessed by an incompatible browser		v	C
ServerRoot directory-path Base directory for the server installation	/usr/local/apache	s	C
ServerSignature On|Off|EMail Configures the footer on server-generated documents	Off	svdh	C
ServerTokens Major|Minor|Min[imal]|Prod[uctOnly]|OS|Full Configures the Server HTTP response header	Full	s	C
Session On|Off Enables a session for the current directory or location	Off	svdh	E
SessionCookieName name attributes Name and attributes for the RFC2109 cookie storing the session		svdh	E
SessionCookieName2 name attributes Name and attributes for the RFC2965 cookie storing the session		svdh	E
SessionCookieRemove On|Off Control for whether session cookies should be removed from incoming HTTP headers	Off	svdh	E
SessionCryptoCipher name The crypto cipher to be used to encrypt the session		svdh	X
SessionCryptoDriver name [param[=value]] The crypto driver to be used to encrypt the session		s	X
SessionCryptoPassphrase secret [ secret ... ] The key used to encrypt the session		svdh	X
SessionCryptoPassphraseFile filename File containing keys used to encrypt the session		svd	X
SessionDBDCookieName name attributes Name and attributes for the RFC2109 cookie storing the session ID		svdh	E
SessionDBDCookieName2 name attributes Name and attributes for the RFC2965 cookie storing the session ID		svdh	E
SessionDBDCookieRemove On|Off Control for whether session ID cookies should be removed from incoming HTTP headers	On	svdh	E
SessionDBDDeleteLabel label The SQL query to use to remove sessions from the database	deletesession	svdh	E
SessionDBDInsertLabel label The SQL query to use to insert sessions into the database	insertsession	svdh	E
SessionDBDPerUser On|Off Enable a per user session	Off	svdh	E
SessionDBDSelectLabel label The SQL query to use to select sessions from the database	selectsession	svdh	E
SessionDBDUpdateLabel label The SQL query to use to update existing sessions in the database	updatesession	svdh	E
SessionEnv On|Off Control whether the contents of the session are written to the HTTP_SESSION environment variable	Off	svdh	E
SessionExclude path Define URL prefixes for which a session is ignored		svdh	E
SessionHeader header Import session updates from a given HTTP response header		svdh	E
SessionInclude path Define URL prefixes for which a session is valid		svdh	E
SessionMaxAge maxage Define a maximum age in seconds for a session	0	svdh	E
SetEnv env-variable [value] Sets environment variables		svdh	B
SetEnvIf attribute regex [!]env-variable[=value] [[!]env-variable[=value]] ... Sets environment variables based on attributes of the request		svdh	B
SetEnvIfExpr expr [!]env-variable[=value] [[!]env-variable[=value]] ... Sets environment variables based on an ap_expr expression		svdh	B
SetEnvIfNoCase attribute regex [!]env-variable[=value] [[!]env-variable[=value]] ... Sets environment variables based on attributes of the request without respect to case		svdh	B
SetHandler handler-name|none|expression Forces all matching files to be processed by a handler		svdh	C
SetInputFilter filter[;filter...] Sets the filters that will process client requests and POST input		svdh	C
SetOutputFilter filter[;filter...] Sets the filters that will process responses from the server		svdh	C
SSIEndTag tag String that ends an include element	"-->"	sv	B
SSIErrorMsg message Error message displayed when there is an SSI error	"[an error occurred +	svdh	B
SSIETag on|off Controls whether ETags are generated by the server.	off	dh	B
SSILastModified on|off Controls whether Last-Modified headers are generated by the server.	off	dh	B
SSILegacyExprParser on|off Enable compatibility mode for conditional expressions.	off	dh	B
SSIStartTag tag String that starts an include element	"<!--#"	sv	B
SSITimeFormat formatstring Configures the format in which date strings are displayed	"%A, %d-%b-%Y %H:%M +	svdh	B
SSIUndefinedEcho string String displayed when an unset variable is echoed	"(none)"	svdh	B
SSLCACertificateFile file-path File of concatenated PEM-encoded CA Certificates for Client Auth		sv	E
SSLCACertificatePath directory-path Directory of PEM-encoded CA Certificates for Client Auth		sv	E
SSLCADNRequestFile file-path File of concatenated PEM-encoded CA Certificates for defining acceptable CA names		sv	E
SSLCADNRequestPath directory-path Directory of PEM-encoded CA Certificates for defining acceptable CA names		sv	E
SSLCARevocationCheck chain|leaf|none flags Enable CRL-based revocation checking	none	sv	E
SSLCARevocationFile file-path File of concatenated PEM-encoded CA CRLs for Client Auth		sv	E
SSLCARevocationPath directory-path Directory of PEM-encoded CA CRLs for Client Auth		sv	E
SSLCertificateChainFile file-path File of PEM-encoded Server CA Certificates		sv	E
SSLCertificateFile file-path Server PEM-encoded X.509 certificate data file		sv	E
SSLCertificateKeyFile file-path Server PEM-encoded private key file		sv	E
SSLCipherSuite cipher-spec Cipher Suite available for negotiation in SSL handshake	DEFAULT (depends on +	svdh	E
SSLCompression on|off Enable compression on the SSL level	off	sv	E
SSLCryptoDevice engine Enable use of a cryptographic hardware accelerator	builtin	s	E
SSLEngine on|off|optional SSL Engine Operation Switch	off	sv	E
SSLFIPS on|off SSL FIPS mode Switch	off	s	E
SSLHonorCipherOrder on|off Option to prefer the server's cipher preference order	off	sv	E
SSLInsecureRenegotiation on|off Option to enable support for insecure renegotiation	off	sv	E
SSLOCSDefaultResponder uri Set the default responder URI for OCSP validation		sv	E
SSLOCSPEnable on|off Enable OCSP validation of the client certificate chain	off	sv	E
SSLOCSPNoverify On/Off skip the OCSP responder certificates verification	Off	sv	E
SSLOCSPOverrideResponder on|off Force use of the default responder URI for OCSP validation	off	sv	E
SSLOCSPProxyURL url Proxy URL to use for OCSP requests		sv	E
SSLOCSPResponderCertificateFile file Set of trusted PEM encoded OCSP responder certificates		sv	E
SSLOCSPResponderTimeout seconds Timeout for OCSP queries	10	sv	E
SSLOCSPResponseMaxAge seconds Maximum allowable age for OCSP responses	-1	sv	E
SSLOCSPResponseTimeSkew seconds Maximum allowable time skew for OCSP response validation	300	sv	E
SSLOCSPUseRequestNonce on|off Configure OpenSSL parameters through its SSL_CONF API Use a nonce within OCSP queries	on	sv	E
SSLOpenSSLConfCmd command-name command-value		sv	E
SSLOptions [+|-]option ... Configure various SSL engine run-time options		svdh	E
SSLPassPhraseDialog type Type of pass phrase dialog for encrypted private keys	builtin	s	E
SSLProtocol [+|-]protocol ... Configure usable SSL/TLS protocol versions	all -SSLv3 (up to 2 +	sv	E
SSLProxyCACertificateFile file-path File of concatenated PEM-encoded CA Certificates for Remote Server Auth		sv	E
SSLProxyCACertificatePath directory-path Directory of PEM-encoded CA Certificates for Remote Server Auth		sv	E
SSLProxyCARevocationCheck chain|leaf|none Enable CRL-based revocation checking for Remote Server Auth	none	sv	E
SSLProxyCARevocationFile file-path File of concatenated PEM-encoded CA CRLs for Remote Server Auth		sv	E
SSLProxyCARevocationPath directory-path Directory of PEM-encoded CA CRLs for Remote Server Auth		sv	E
SSLProxyCheckPeerCN on|off Whether to check the remote server certificate's CN field	on	sv	E
SSLProxyCheckPeerExpire on|off Whether to check if remote server certificate is expired	on	sv	E
SSLProxyCheckPeerName on|off Configure host name checking for remote server certificates	on	sv	E
SSLProxyCipherSuite cipher-spec Cipher Suite available for negotiation in SSL proxy handshake	ALL:!ADH:RC4+RSA:+H +	svdh	E
SSLProxyEngine on|off SSL Proxy Engine Operation Switch	off	sv	E
SSLProxyMachineCertificateChainFile filename File of concatenated PEM-encoded CA certificates to be used by the proxy for choosing a certificate		s	E
SSLProxyMachineCertificateFile filename File of concatenated PEM-encoded client certificates and keys to be used by the proxy		s	E
SSLProxyMachineCertificatePath directory Directory of PEM-encoded client certificates and keys to be used by the proxy		s	E
SSLProxyProtocol [+|-]protocol ... Configure usable SSL protocol flavors for proxy usage	all -SSLv3 (up to 2 +)	sv	E
SSLProxyVerify level Type of remote server Certificate verification	none	sv	E
SSLProxyVerifyDepth number Maximum depth of CA Certificates in Remote Server Certificate verification	1	sv	E
SSLRandomSeed context source [bytes] Pseudo Random Number Generator (PRNG) seeding source		s	E
SSLRenegBufferSize bytes Set the size for the SSL renegotiation buffer	131072	dh	E
SSLRequire expression Allow access only when an arbitrarily complex boolean expression is true		dh	E
SSLRequireSSL a href="http://setgetweb.com/p/Apache24/mod/mod_access_compat.html#deny">Deny access when SSL is not used for the HTTP request		dh	E
SSLSessionCache type Type of the global/inter-process SSL Session Cache	none	s	E
SSLSessionCacheTimeout seconds Number of seconds before an SSL session expires in the Session Cache	300	sv	E
SSLSessionTicketKeyFile file-path Persistent encryption/decryption key for TLS session tickets		sv	E
SSLSessionTickets on|off Enable or disable use of TLS session tickets	on	sv	E
SSLSRPUnknownUserSeed secret-string SRP unknown user seed		sv	E
SSLSRPVerifierFile file-path Path to SRP verifier file		sv	E
SSLStaplingCache type Configures the OCSP stapling cache		s	E
SSLStaplingErrorCacheTimeout seconds Number of seconds before expiring invalid responses in the OCSP stapling cache	600	sv	E
SSLStaplingFakeTryLater on|off Synthesize "tryLater" responses for failed OCSP stapling queries	on	sv	E
SSLStaplingForceURL uri Override the OCSP responder URI specified in the certificate's AIA extension		sv	E
SSLStaplingResponderTimeout seconds Timeout for OCSP stapling queries	10	sv	E
SSLStaplingResponseMaxAge seconds Maximum allowable age for OCSP stapling responses	-1	sv	E
SSLStaplingResponseTimeSkew seconds Maximum allowable time skew for OCSP stapling response validation	300	sv	E
SSLStaplingReturnResponderErrors on|off Pass stapling related OCSP errors on to client	on	sv	E
SSLStaplingStandardCacheTimeout seconds Number of seconds before expiring responses in the OCSP stapling cache	3600	sv	E
SSLStrictSNIVHostCheck on|off Whether to allow non-SNI clients to access a name-based virtual host.	off	sv	E
SSLUserName varname Variable name to determine user name		sdh	E
SSLUseStapling on|off Enable stapling of OCSP responses in the TLS handshake	off	sv	E
SSLVerifyClient level Type of Client Certificate verification	none	svdh	E
SSLVerifyDepth number Maximum depth of CA Certificates in Client Certificate verification	1	svdh	E
StartServers number Number of child server processes created at startup		s	M
StartThreads number Number of threads created on startup		s	M
Substitute s/pattern/substitution/[infq] Pattern to filter the response content		dh	E
SubstituteInheritBefore on|off Change the merge order of inherited patterns	off	dh	E
SubstituteMaxLineLength bytes(b|B|k|K|m|M|g|G) Set the maximum line size	1m	dh	E
Suexec On|Off Enable or disable the suEXEC feature		s	B
SuexecUserGroup User Group User and group for CGI programs to run as		sv	E
ThreadLimit number Sets the upper limit on the configurable number of threads per child process		s	M
ThreadsPerChild number Number of threads created by each child process		s	M
ThreadStackSize size The size in bytes of the stack used by threads handling client connections		s	M
TimeOut seconds Amount of time the server will wait for certain events before failing a request	60	sv	C
TraceEnable [on|off|extended] Determines the behavior on TRACE requests	on	sv	C
TransferLog file|pipe Specify location of a log file		sv	B
TypesConfig file-path The location of the mime.types file	conf/mime.types	s	B
UnDefine parameter-name Undefine the existence of a variable		s	C
UndefMacro name Undefine a macro		svd	B
UnsetEnv env-variable [env-variable] ... Use name [value1 ... valueN] Remove variables from the environment		svdh	B
UseCanonicalName On|Off|DNS Configures how the server determines its own name and port	Off	svd	C
UseCanonicalPhysicalPort On|Off Configures how the server determines its own port	Off	svd	C
User unix-userid The userid under which the server will answer requests	#-1	s	B
UserDir directory-filename [directory-filename] ... Location of the user-specific directories		sv	B
VHostCGIMode On|Off|Secure Determines whether the virtualhost can run subprocesses, and the privileges available to subprocesses.	On	v	X
VHostPrivs [+-]?privilege-name [[+-]?privilege-name] ... Assign arbitrary privileges to subprocesses created by a virtual host.		v	X
VHostGroup unix-groupid Sets the Group ID under which a virtual host runs.		v	X
VHostPrivs [+-]?privilege-name [[+-]?privilege-name] ... Assign arbitrary privileges to a virtual host.		v	X
VHostSecure On|Off Determines whether the server runs with enhanced security for the virtualhost.	On	v	X
VHostUser unix-userid Sets the User ID under which a virtual host runs.		v	X
VirtualDocumentRoot interpolated-directory|none Dynamically configure the location of the document root for a given virtual host	none	sv	E
VirtualDocumentRootIP interpolated-directory|none Dynamically configure the location of the document root for a given virtual host	none	sv	E
<VirtualHost addr[:port] [addr[:port]] ...> ... </VirtualHost> Contains directives that apply only to a specific hostname or IP address		s	C
VirtualScriptAlias interpolated-directory|none Dynamically configure the location of the CGI directory for a given virtual host	none	sv	E
VirtualScriptAliasIP interpolated-directory|none Dynamically configure the location of the CGI directory for a given virtual host	none	sv	E
WatchdogInterval number-of-seconds Watchdog interval in seconds	1	s	B
XBitHack on|off|full Parse SSI directives in files with the execute bit set	off	svdh	B
xml2EncAlias charset alias [alias ...] Recognise Aliases for encoding values		s	B
xml2EncDefault name Sets a default encoding to assume when absolutely no information can be automatically detected		svdh	B
xml2StartParse element [element ...] Advise the parser to skip leading junk.		svdh	B

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