simple domain question

Hi everyone I'm a开发者_开发百科 new apache tomcat user I have question regarding seting up a domain name I'm kinda confused about that and how do I know what is my current domain name? can I change the domain name ? I looked into the apache documentations but it was not clear Thank you in advance Lava

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This question sounds a lot like it's asking about domain name registration and DNS hosting rather than anything tomcat specific.

Your current domain name is probably given to you by whoever hosts your server if you're using public address space. If it's a Unix/Linux box you can find out what that is (assuming things are configured sanely) from a shell using

hostname -A

If you only know the IP address you can make a reverse lookup to find a DNS name that probably points back to your server.