HTTP transport channel custom properties
If you are using an HTTP transport channel, you can add any of the following custom properties to the configuration settings for that channel.
To add a custom property:
- In the console, click...
Application servers | server_name | Web container settings | Web container transport chains | chain_name | HTTP Inbound Channel | Custom Properties | New
- Under General Properties specify the name of the custom property in the Name field and a value for this property in the Value field. You can also specify a description of this property in the Description field.
- Click Apply or OK.
- Click Save to save the configuration changes.
- Restart the server.
Following is a list of the HTTP transport channel custom properties provided with WebSphere application Server. These properties are not shown on the settings page for an HTTP transport channel.
CookiesConfigureNoCache
Use the CookiesConfigureNoCache property to specify whether the presence of a Set-Cookie header in an HTTP response message triggers the addition of several cache related headers. If this property is set to true, an Expires header with a very old date, and a Cache-Control header that explicitly tells the client not to cache the Set-Cookie header are added.
Data type Boolean Default False
localLogFilenamePrefix
Specify a prefix for the filename of the network log file. Normally, when inprocess optimization is enabled, requests through the inprocess path are logged based on the logging attributes set up for the Web container's network channel chain. You can use this property to add a prefix to the filename of the network log file. This new filename is then used as the filename for the log file for inprocess requests. Requests sent through the inprocess path are logged to this file instead of to the network log file. For example, if the log file for a network transport chain is named .../httpaccess.log, and this property is set to local for the HTTP channel in that chain, the filename of the log file for inprocess requests to the host associated with that chain is /localhttpaccess.log.
If you specify a value for the localLogFilenamePrefix custom property, also set the accessLogFileName HTTP channel custom property to the fully qualified name of the log file you want to use for in process requests. You cannot specify a variable, such as $(SERVER_LOG_ROOT), as the value for this custom property.
Data type String
limitFieldSize
Enforce the size limits on various HTTP fields, such as request URLs, or individual header names or values. Enforcing the size limits of these fields guards against possible Denial of Service attacks. An error is returned to the remote client if a field exceeds the allowed size.
Data type Integer Default 32768 Range 50-32768
limitNumHeaders
Limit the number of HTTP headers that can be present in an incoming message. If this limit is exceeded, an error is returned to the client.
Data type Integer Default 500 Range 50 to 500
listenBacklog
Maximum number of outstanding connect requests that the operating system will buffer while it waits for the appserver to accept the connections. If a client attempts to connect when this operating system buffer is full, the connect request will be rejected. Set this value to the number of concurrent connections that you would like to allow. Keep in mind that a single client browser might need to open multiple concurrent connection; also keep in mind that increasing this value consumes more kernel resources. The value of this property is specific to each transport.
Data type Integer Default 511
RemoveHeaderValue
Force the removal of any server header from HTTP responses that the appserver sends, thereby hiding the identity of the server program.
Data type Boolean Default False
ServerHeaderValue
Use the ServerHeaderValue property to specify a header that is added to all outgoing HTTP responses if a server header does not already exist.
Data type String Default WAS v/x.x, where x.x is the version of WAS that is running on your system.
Related tasks
Configure transport chains