Date: 30 Apr 1997 13:15:17 -0000 From: mark thompson <thompson@squirrel.tgsoft.com> To: jmg@hydrogen.nike.efn.org Cc: security@freefall.FreeBSD.ORG Subject: Re: What's on Port 1024? Message-ID: <19970430131517.11350.qmail@tgsoft.com> In-Reply-To: message from John-Mark Gurney on Fri, 25 Apr 1997 00:55:33 -0700
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From: John-Mark Gurney <jmg@hydrogen.nike.efn.org> Date: Fri, 25 Apr 1997 00:55:33 -0700 joed@ksu.edu scribbled this message on Apr 24: > Greetings, > > I'm currently in the proccess of trying to lock down a FreeBSD workstation > as a firewall, and noticed that my FreeBSD machine is listening to port > 1024. I'm fairly stumped as to what this might be.. According to the > port number database (http://www.sockets.com/services.htm) 1024 is > reserved. > > Any thought as to what's listening to this port? try: lsof | grep 1024 on my machine it returns a line like: xdm 214 root 5u inet 0xf17bbc00 0t0 TCP *:1024 so it looks like the process is xdm.... ttyl.. Interesting. On my machine (2.2.1) I have the following bits: bash$ sudo lsof | grep UDP [skip...] inetd 139 root 18u inet 0xf1a77b00 0t0 UDP *:1024 inetd 139 root 19u inet 0xf1a77a80 0t0 UDP *:blackjack [skip...] blackjack is 1025. Since neither of these is in inetd.conf, i wonder whazzup? -mark
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