Subject: Re: Service 113
From: James F. Zuelow Jr. (jamesz@ideafamilies.org)
Date: Tue Feb 12 2002 - 13:00:28 AKST
----- Original Message -----
From: "Mike Barsalou" <mbarsalou@aidea.org>
>
> I believe port 113 is for ident. Is this commonly used? Is there a
secure
> and not secure way to handle this?
>
AFAIK it is only used by mail servers to verify the identity of servers
passing them mail (i.e. you have Postfix on your LAN sending mail to your
ISP). If you drop packets for 113, the receiving server will eventually
time out and move on. If you deny packets for 113, the receiving server
will see the rejection message, immediately forget about it and move on.
I don't know of anyone who actually ACCEPTS ident traffic. I think the
protocol was only useful in the ancient days when almost everyone on the net
was trusted.
Cheers,
James
This archive was generated by hypermail 2a23 : Tue Feb 12 2002 - 13:01:31 AKST