You can also log in to the chroot environment and do try
to execute some commands like telnet, mtr to see if
networking is working as expected.

2016-10-17 18:14 GMT+01:00 Wietse Venema <wie...@porcupine.org>:

> ????? ?????:
> > Postfix 3.1.1
> >
> > > disable_dns_lookups = no
> > > lmtp_host_lookup = dns
> > > smtp_host_lookup = dns
> > > disable_dns_lookups = no
> > >
> > > # diff /etc/nsswitch.conf /var/spool/postfix/etc/nsswitch.conf | wc -l
> > > 0
>
> If chroot makes a difference, then you have some file difference.
>
> There are more files that determine host lookups. The first one
> that comes to mind is resolv.conf.
>
> Also don't overlook file/directory permission differences.
>
>         Wietse
>

Reply via email to