Failed to lookup hostname via DNS: Name or service not known

Message

quater · Post by **quater** » Thu Sep 18, 2008 4:09 pm

I have the following error on boot:
err, eth0: Failed to lookup hostname via DNS: Name or service not known

is there any way to get rid of this message? It doesn't seem to affect anything tho. Thanks!

notHerbert · Post by **notHerbert** » Thu Sep 18, 2008 5:06 pm

Your /etc/resolv.conf file needs to be configured.

That's why the installation handbook says to copy the /etc/resolv.conf file just before chrooting.

You need a nameserver <ip address> in there.

quater · Post by **quater** » Thu Sep 18, 2008 5:57 pm

Thanks for reply, however this approach doesn't work. I put a dummy resolv.conf:

cat /etc/resolv.conf
nameserver 10.10.1.254

Still see same error on boot.

err, eth0: Failed to lookup hostname via DNS: Name or service not known

codergeek42 · Post by **codergeek42** » Thu Sep 18, 2008 6:08 pm

Are you sure that's the right IP address of your nameserver? (In most cases, it's often the IP address of your router.)

You may want to try using OpenDNS's nameservers:

Code: Select all

##### /etc/resolv.conf #####

nameserver 208.67.222.222
nameserver 208.67.220.220

quater · Post by **quater** » Thu Sep 18, 2008 11:59 pm

The thing is that I may not have DNS or DNS could be not available. Is it possible to avoid this message?

notHerbert · Post by **notHerbert** » Fri Sep 19, 2008 2:22 am

If you are connected to the internet, then you are using DNS. If your resolv.conf is correctly configured, then you won't get error messages.

quater · Post by **quater** » Fri Sep 19, 2008 6:01 pm

I am not connected to internet. I use DHCP but don't use DNS.

notHerbert · Post by **notHerbert** » Sat Sep 20, 2008 5:18 pm

Hmmm. then maybe (but not sure)
nameserver 127.0.0.1

But why do you use DHCP if you're not connected to the internet?

username234 · Post by **username234** » Sun Sep 21, 2008 6:44 am

I'm assuming you are using dhcpcd as your dhcp client. If so, upgrade dhcpcd to 4.0.1 (you may need to add dhcpcd to package.keywords before upgrading) and it will go away.

ZeuZ_NG · Post by **ZeuZ_NG** » Sun Sep 21, 2008 9:10 am

Ok, now wait, if you're using DHCP, and you're browsing the world wide network, then you're using DNS.
DHCP imports the configuration from what's received from the DHCP server, and clients then update the pertinent files.
What we need to know is what kind of network are you having, and, if it's just for an inner network, go check the DHCP server to see if there's any failure on the logs.
Perhaps more details would be helpful.