Verifying+DNS+Integrity

To confirm that the server's hostname is configured properly on the host and in DNS do the following from a terminal: code format="text" % hostname code This should output the Fully Qualified Domain Name (FQDN) like this


 * your_server.domain.edu**

Now do a forward lookup: code format="text" % host your_server.domain.edu code You should get a response like the following


 * your_server.domain.edu has address 192.168.0.1**

Make sure the IP is correct for your network. Now do a reverse lookup: code format="text" % host 192.168.0.1 code You should get a response like the following


 * 1.0.168.192.in-addr.arpa domain name pointer your_server.domain.edu**

Now verify that the dynamically generated localhost name is correct (if forward and reverse DNS were setup properly it will be): code format="text" % sudo changeip -checkhostname code Make sure the current hostname and DNS hostname values match

You can also use **dig** to perform a quick forward and reverse DNS check: code format="text" dig your_server.domain.edu code ...and to check reverse code format="text" dig -x 192.168.0.1 code

Updated --1234058131