Change to the Tomcat configuration directory:
Linux: /opt/novell/nam/adminconsole/conf
Windows Server 2012: \Program Files (x86)\Novell\Tomcat\conf
Open the server.xml file. Search for the cipher attribute in the <Connectors> element and then modify the list to include only the following cipher suites:
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 TLS_RSA_WITH_AES_128_CBC_SHA TLS_RSA_WITH_AES_256_CBC_SHA256 TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 TLS_RSA_WITH_AES_128_CBC_SHA256 TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 TLS_DHE_DSS_WITH_AES_128_CBC_SHA256
For a detailed sample, see Section 2.17, Samples of Recommended Settings in Configuration Files.
For a complete list of supported cipher suites and their requirements, see “The SunJSSE Provider”.
For more information, see the overview of Strengthening TLS/SSL Settings.