host address mismatch

[Lebo Mollo]

Hi Guys

I ve got a problem with two cluster nodes - when i try to rlogin from one of the nodes, it comes up with an error message: host address mismatch , but it only happens from one node.

i can use telnet , all trusted access is there , i have checked from the DNS site,

Your help will be highly appreciated.

Thanks

Lebo

[Jeff Schussele]

Hi Lebo,

Check the /etc/hosts file on both systems for errors or typos. And in MC/SG cluster I always set up resolv.conf to use files 1st & DNS 2nd because MC/SG prefers the shortnames.
Also I always use the shortname in the hosts file & the FQDN as the alias - for EX:

111.222.111.222 host1 host1.company.com
111.222.111.223 host2 host2.company.com

Also verify that if you're using the cmclnodelist file in the /etc/cmcluster dir that there are no errors or typos in there as well.

Rgds,
Jeff

[Uday_S_Ankolekar]

It should be due to alias name in /etc/hosts file. Remove the alias name if you have any in hosts file. ( most of the time it is typo or FQHN.
Also have a look in cmclnodelist in /etc/cmcluster for the same

Good luck,
-USA..

[W.C. Epperson]

Typically "host address mismatch" errors at the TCP application layer result from the application taking the incoming hostname, requesting the IP address for the hostname, then doing an inverse-arpa reverse lookup on the IP address. If the hostname for the reversed lookup does not match the incoming hostname, the error is returned.

[Helen French]

I have seen these messages when there is duplicate entries exists for the same server (same ip) in the DNS table. Check your DNS entries and the name resolution for the server:

# nslookup