DNS and its IP for Linux

"HL" <[email protected]>
Newsgroups gmane.linux.redhat.release.enigma
Message-ID <154e01c322b4$8bb3a610$6501a8c0@oemcomputer>
Have some questions for our Redhat Linux :

1. How to find out what DNS and its respective for the Linux server ?

2. How to find out what host name/address for the Linux server ?

Thanks
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