Feb 25 14:25:52 support RT: [1188] The requested host (11.11.11.11) does NOT match the configured
WebDomain (support.org.net). Perhaps you should Set($WebDomain, '11.11.11.11'); in RT_SiteConfig.pm,
otherwise your internal hyperlinks may be broken.
The apache config has the domain configured, as has RT. Should I really do as noted in the log?
That means you are accessing the RT web UI using the IP address in the browser and not the domain you have configured. You should set RT to use whichever URL domain/IP you plan to put in your browser
I can also see from the web interface Admin → Tools → System configuration that WebBaseURL is set correctly to exactly that. Hence I’m wondering about the syslog notice.
I suppose that was a third party being nosy since this didn’t shop up again in the syslog. However if I deliberately enter the IP address of the RT installation this notice doesn’t appear again as expected.
To resolve the issue, update the RT_SiteConfig.pm file by setting $WebDomain to ‘11.11.11.11’ to match the configured host IP address and avoid broken internal hyperlinks.