Date: Tue, 23 May 2000 19:35:34 -0400 From: Alan Clegg <abc@firehouse.net> To: David Kirchner <dpk@nwserv.com> Cc: Oscar Ricardo Silva <oscars@mail.utexas.edu>, freebsd-questions@FreeBSD.ORG Subject: Re: Port 722 ? Message-ID: <20000523193534.A57347@ecto.greenpeas.org> In-Reply-To: <Pine.BSF.4.21.0005231624110.29966-100000@web2.sea.nwserv.com>; from dpk@nwserv.com on Tue, May 23, 2000 at 04:27:00PM -0700 References: <4.2.2.20000523180523.00a8f680@mail.utexas.edu> <Pine.BSF.4.21.0005231624110.29966-100000@web2.sea.nwserv.com>
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Out of the ether, David Kirchner spewed forth the following bitstream:
> An easy way to find out what an unknown port is:
>
> First run 'netstat -aAn | grep LISTEN | grep \.portnum'. The -A flag will
> display the address for the socket. You can then figure out which process
> is using that address by running 'fstat | grep address':
>
> dpk@web2:/home/dpk$ netstat -aAn | grep LISTEN | grep \.25
> c6400180 tcp 0 0 *.25 *.* LISTEN
> dpk@web2:/home/dpk$ fstat | grep c6400180
> root sendmail 94903 4* internet stream tcp c6400180
Easier way:
lsof -i TCP:_portnum_
ecto 101} /usr/local/sbin/lsof -i TCP:25
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
tcpserver 381 qmaild 3u IPv4 0xc735c500 0t0 TCP *:smtp (LISTEN)
lsof from ports, btw...
AlanC
--
\ Alan B. Clegg
Just because I can \ abc@firehouse.net
does not mean I will. \ <http://www.firehouse.net/>;
\
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