Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 19 Jan 2012 15:32:19 +0100
From:      n dhert <ndhertbsd@gmail.com>
To:        freebsd-questions@freebsd.org
Subject:   changed ip-adress, DNS lookups don't work anymore
Message-ID:  <CAEFCw4u4_ZYX4ekHx_Gm0pxj5M%2B8jQHjesdd0FoGxNhPRgOp5w@mail.gmail.com>

next in thread | raw e-mail | index | archive | help
FreeBSD 8.2. system.
Gets is TCP/IP parameters (and DNS name-servers IPs) from a DHCP server,
with a fixed IP address
(the system always gets the same IP, based on its MAC address as specified
in the DHCP config file)

Now I wanted the system to have a different IP address.
Changed the DHCP server config accordingly.
Reboot. OK, from  $ ifconfig -a I can see it received the new IP.

But DNS lookups don't work any longer ..
$ host xxx.yyy.zzz.com
;; connection timed out; no servers could be reached

The system is behind a firewall, but there are NO errors logged relating
to the (new) IP address.
Other FreeBSD-8.2 systems using the same DHCP server, configured in exactly
the same way, work perfectly well.

I can SSH to the sytem, but it takes 20 or 30 seconds before the Password:
prompt appears (normally should
be immediate)
Once in the system, starting my alpine mail-client, it takes a minute or so
to display the messages (normally this should be immediate)
Also at boot of the system there is wait for a 2,5 minutes somewhere in the
series of Starting <deamon>.
Probably these three phenomena have the same cause: DNS lookups don't work

any idea what can be wrong ??
I've looked and compared with other systems, can't find it ...



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CAEFCw4u4_ZYX4ekHx_Gm0pxj5M%2B8jQHjesdd0FoGxNhPRgOp5w>