[lug] TCP port 53?

[Jeff Schroeder]

Chip asked:

> If I'm running a name server, do I need to have TCP port 53 open?  I
> know DNS uses UDP, but does it use TCP as well?

According to /etc/services:

domain              53/tcp nameserver   # domain name server
domain              53/udp nameserver   # domain name server

So it looks like it's using both TCP and UDP.

HTH,
Jeff