[CentOS] fqdn hostname fails after reboot

Thu Feb 9 00:04:52 UTC 2012
Stephen Harris <lists at spuddy.org>

On Thu, Feb 09, 2012 at 01:00:33AM +0100, Chris wrote:
> Feb  9 00:49:57 x800 postfix[1387]: warning: valid_hostname: invalid
> character 13(decimal): x800.mydomain.local?

13 is control-M.

One of your config files is in DOS format and has an embedded control-M
in it.  Check /etc/sysconfig/network.  If you "vi" it, does it show ^M
at the end, or does the bottom line say [dos] ?

When you find the file, "dos2unix" will fix it.