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What is new in this release
IBM HTTP Server contains some new functions. Review this topic to find out about the new functionality provided in this release.
The following list contains new functionality provided in IHS for this release.
- Linux: UNIX: Windows: The LDAP authentication support from Apache is provided. The mod_ibm_ldap module is also supported. Best Practice: If we are using the mod_ibm_ldap module for your LDAP configuration, consider migrating your mod_ibm_ldap directives to use the mod_ldap module. The mod_ibm_ldap module is provided with this release of IBM HTTP Server for compatibility with previous releases, however, migrate existing configurations to use the mod_authnz_ldap and mod_ldap modules to ensure future support for your LDAP configuration.
- Linux: UNIX: Windows: The Global Security Toolkit (GSKit) is included in the IBM HTTP Server installation. GSKit is not installed or upgraded for the entire system.
- The GSKit libraries are installed locally in the /IBM/IHS/gsk7
- The GSKit wrappers for certificate management tools, such as ikeyman and gsk7cmd, are installed in the /IBM/IHS/bin/
- GSKit maintenance for IHS must be installed by the IHS Update Installer, and not system-wide GSKit updates.
- The new AddServerHeader directive controls whether or not a server response header is added for requests not proxied to another server. For more information about this directive, see the AddServerHeader directive Web page.
- The ihsdiag diagnostic plug-in modules are bundled with the product installation in the /IBM/IHS/modules/debug Previously, they were obtained from the ihsdiag distribution.
- Solaris: The mod_backtrace diagnostic module is now supported.
The following list contains new Apache features provided in IHS for this release.
- Support on all platforms for files delivered to the client that are larger than 2GB.
- The rotatelogs command handles log files larger than 2GB on all platforms.
- The httxt2dbm command creates DBM files for use with the RewriteMap, which provides better performance than text file maps. See the topic about Apache programs supported by IHS.
- UNIX: Linux: z/OS: Graceful shutdown is supported with the worker Multi-processing module (MPM). See the topic about Apache modules supported by IBM HTTP Server.
- z/OS: LDAP attribute values and complex search filters are supported for the Require directive.
- The mod_info module supports a new query argument for displaying the configuration directives as parsed by the web server, including their file names and line numbers. The module also shows the order of all request hooks and additional build information, similar to the V argument for the apachectl command.
- A new command line option M was added for the httpd.exe and apachectl commands to list all modules that are loaded based on the current configuration. Unlike the -l option, this list includes DSOs loaded using the mod_so module.
- The mod_logio module is provided with IHS.
- The ProxyPassReverseCookieDomain and ProxyPassReverseCookiePath directives are provided for the mod_proxy module to modify the domain and path strings in Set-Cookie headers to reference the proxy server. These new directives provide a more functional reverse proxy implementation.
- The TraceEnable directive allows more control over whether or not the TRACE method is supported. Previously, the mod_rewrite module configuration was used to reject TRACE requests.
Related tasks
Migrating from previous releases of IHS
Converting your directives from mod_ibm_ldap to mod_ldap
Extending IHS functionality with third-party plug-in modules
Related reference
Apache modules (containing directives) supported by IHS
Apache programs supported by IHS