On Wed, March 6, 2013 3:24 pm, Michael Chesterton wrote:

> what command is not using /etc/hosts?
>
> strace it to see what it's doing, post the output (maybe post a link to a
>  pastebin if it's huge)

Michael, thanks

ping seems to, host doesn't seem to:

# cat hosts
127.0.0.1       localhost.localdomain   localhost4
localhost4.localdomain4 localhost
::1     localhost6      localhost6.localdomain6
...
127.0.0.1       testthishost.com

# ping testthishost.com
PING testthishost.com (127.0.0.1) 56(84) bytes of data.
64 bytes from localhost.localdomain (127.0.0.1): icmp_seq=1 ttl=64
time=0.037 ms

]# host  testthishost.com
Host testthishost.com not found: 3(NXDOMAIN)

same for host's own hostname sans domain, ping does, host doesn't


back to main issue:
I had probs resolving an MX hostname, so, I thought, no worries, I'll just
enter it in /etc/hosts to overcome the problem

so, the real issue is postfix is unable to resolve a hostname, and,
neither can I from shell prompt, not really sure if postfix uses 'host',
but, if it won't work at prompt, can't expect it to work in postfix..



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