How to change the port for OM Web Viewer 12.1 running Tomcat

Document ID : KB000009421
Last Modified Date : 14/02/2018
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If CA Output Management Web Viewer does not come up after the initial install, check to see if the Web Viewer default port of 8080 is already in use. Here is how to modify the listening port for Web Viewer if the port is already in use.


The port must be changed in Tomcat. Tomcat by default runs on port number 8080.

Find the file server.xml under TOMCAT_HOME/conf/ and edit it in ASCII mode. Modify the path according to your environment.

For example, in Windows, it will be in:

C:\Program Files\CA\CA_OM_Web_Viewer\apache-tomcat-versionnumber\conf\server.xml
in USS it might be:

To actually change the port number, find the following string in the server.xml file and change the setting to the port you want to use.
<Connector port="8080"
NOTE: The string 8080 may be different if you specified another port during the installation.

Additional Information:

CA Output Management Web Viewer 12.1 Documentation