On Thu, 12 Oct 2000, Jamin Collins wrote:
> This is most likely a stupid question and I'm sure it probably been answered
> elsewhere. However, I haven't been able to locate a good answer on it.
> What is port 113 used for normally, and should I have this port accessible
> on my company's firewall? I'm asking because after checking the logs this
> morning I see several requests from what I would normally consider to be
> reputable sources on this port, that my firewall has rejected.
>
> Jamin W. Collins
>
>
Port 113 is used by remote machines to find out who is trying to connect
to their machine. One of the biggest uses is by IRC servers to limit
users to one connection at a time, but other services may use it as
well. Blocking this port is usualy ok, as long as you are rejecting
connections, an not denying them. If you use deny, then the system on the
other end may wait untill it times out before processing your connection.
man identd or info identd for more information.
Mikkel
--
Do not meddle in the affairs of dragons,
for you are crunchy and taste good with ketchup.
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