Could not resolve host error

Question

I'm using Arch Linux and I have a dynamic ip address with the use of dhcpcd. I can access websites through the google chrome but the problem is that I get 'could not resolve host' error when I run some commands on the terminal (like git clone).

I've tried pinging github.com and doing nslookup and it returns the correct ip. Any ideas?

Solution

Problem is that sometimes dhcpcdor other processes overwrite the content of the resolv.conf file, which is where DNS library resolver configuration is stored, inserting the DNS servers from your internet service provider, which may not work in some cases.

In case of problems it may be a good idea to change the content of resolv.conf to point to Open DNS servers (which should work better than your service provider servers):

# OpenDNS servers
nameserver 208.67.222.222
nameserver 208.67.220.220

or

# Google nameservers
nameserver 8.8.8.8
nameserver 8.8.4.4

and then protect the content of resolv.conf from dhcpcd adding the line nohook resolv.conf to /etc/dhcpcd.conf See the mighty Arch wiki for more details

Comments

[Old Nick]

have you tried this?

[gerky]

@dcmst Cool, works fine now. You should post that as an answer. Thanks!

[Old Nick]

@beefjerky, you're welcome, maybe this was actually caused by the same DNS problem?

[gerky]

Yup, it was the same issue. I'm closing it.