To prevent the Tomcat server from serving index pages in the absence of welcome files, the configuration for the DefaultServlet needs to be modified. The listings parameter controls whether directory listings are shown. When set to false, it ensures that directory listings are not provided, which includes not serving index pages when welcome files are absent.
Here’s the breakdown of the configuration:
default: This specifies the name of the servlet.
org.apache.catalina.servlets.DefaultServlet: This indicates the servlet class that is being configured.
: This tag is used to define initialization parameters for the servlet.
listings: The listings parameter name is used to control the display of directory listings.
false: Setting this value to false disables the directory listings.
1: This indicates the servlet should be loaded at startup.
The correct configuration to solve Oliver’s problem is:
XML
default
org.apache.catalina.servlets.DefaultServlet
listings
false
1
AI-generated code. Review and use carefully. More info on FAQ.
This configuration will ensure that if a welcome file is not present, the server will not default to serving an index page, thus addressing the security concern.
References:For further details on Tomcat server configuration, please refer to the official Apache Tomcat documentation and configuration guides which provide comprehensive instructions on server setup and security best practices12. These resources are essential for any web server admin like Oliver to configure and secure their Tomcat server effectively.
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