Temporarily failure in name resolution

[LinuxRocks2000]

I ran nc -vlp 80 to listen on a port, but it returns
nc: getnameinfo: Temporary failure in name resolution
and terminates.
Sorry if this is an obvious problem

[Margular]

How you compile nc?

[sumedhe]

@LinuxRocks2000 The problem could be with the DNS resolver. Try updating the namespace in /etc/resolv.conf as follows.

nameserver 8.8.8.8

[sijanec]

Why would you even need DNS for netcat, which has no connection with domain names? When in visual/verbose mode, I think that netcat should not exit just because it can't resolve IP addresses to hostnames (maybe they don't have PTR records). In my opinion, netcat should merely display a warning about the fact that IP addresses can't be resolved and continue with transmission of data anyways.

edit:
It looks like I was mistaken (RTFM!). In the man pages of nc(1), -n switch is used to disable any DNS lookups, so -v should not fail. I haven't tested that yet, but if that's the case, this issue may get closed.