Linux hosts file

/etc/hosts

Say it looks like this:

127.0.0.1 localhost.localdomain localhost.localdomain localhost4 localhost4.localdomain4 localhost mycpu001

::1 localhost.localdomain localhost.localdomain localhost6 localhost6.localdomain6 localhost mycpu001

192.168.1.51 mycpu001

192.168.1.52 mycpu002

192.168.1.53 mycpu003

192.168.1.54 mycpu004

Sometimes if you do nslookup mycpu001, it will resolve to “localhost” or some variant in that line. Not sure that would be entirely expected.

I’m going to remove the “mycpu001″ from the first 2 lines (and the equivalent on all other machines)