From owner-freebsd-hackers Wed Jun 19 1:46:30 2002 Delivered-To: freebsd-hackers@freebsd.org Received: from south.nanolink.com (south.nanolink.com [217.75.134.10]) by hub.freebsd.org (Postfix) with SMTP id BF1E137B40D for ; Wed, 19 Jun 2002 01:46:10 -0700 (PDT) Received: (qmail 76388 invoked by uid 85); 19 Jun 2002 08:57:08 -0000 Received: from unknown (HELO straylight.ringlet.net) (212.116.140.125) by south.nanolink.com with SMTP; 19 Jun 2002 08:56:53 -0000 Received: (qmail 9966 invoked by uid 1000); 19 Jun 2002 08:44:12 -0000 Date: Wed, 19 Jun 2002 11:44:12 +0300 From: Peter Pentchev To: Varshavchick Alexander Cc: hackers@FreeBSD.ORG Subject: Re: Getting pid of listening process Message-ID: <20020619084411.GD369@straylight.oblivion.bg> Mail-Followup-To: Varshavchick Alexander , hackers@FreeBSD.ORG References: <20020619080233.GC369@straylight.oblivion.bg> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="tqI+Z3u+9OQ7kwn0" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.3.99i X-Virus-Scanned: by Nik's Monitoring Daemon (AMaViS perl-11d ) Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG --tqI+Z3u+9OQ7kwn0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Jun 19, 2002 at 12:40:30PM +0400, Varshavchick Alexander wrote: > On Wed, 19 Jun 2002, Peter Pentchev wrote: >=20 > > Date: Wed, 19 Jun 2002 11:02:33 +0300 > > From: Peter Pentchev > > To: Varshavchick Alexander > > Cc: hackers@FreeBSD.ORG > > Subject: Re: Getting pid of listening process > >=20 > > On Wed, Jun 19, 2002 at 11:01:19AM +0300, Peter Pentchev wrote: > > > On Wed, Jun 19, 2002 at 11:48:56AM +0400, Varshavchick Alexander wrot= e: > > > > Hi gurus, > > > >=20 > > > > can anybody make a hint as how pid of a process listening on a spec= ified > > > > tcp port can be determined? Of cause there are major utilities like= lsof > > > > or sockstat but they gather a lot of extra information and work not= too > > > > fast. What I need ideally would be a small C program which outputs = pid > > > > given a port number as a parameter, can anybody help? > > >=20 > > > Very few things could work faster than lsof(1) with appropriate > > > command-line options. I would suggest that you take the time to read > > > the lsof manual page carefully, then try something like: > > >=20 > > > lsof -nPli 4tcp:25 > > >=20 > > > Of course, depending on your needs, you may want to drop the -P, -l or > > > -n options. > >=20 > > Hit 'send' too fast; if you are only interested in pid's, take a look at > > the -t option, too :) >=20 > lsof seems to have problems on the server in question, it takes all cpu > time and never returns for a long time... Installing the latest lsof > release didn't help :( Have you actually tried the -n option? If it hangs with -n, try -b, too. G'luck, Peter --=20 Peter Pentchev roam@ringlet.net roam@FreeBSD.org PGP key: http://people.FreeBSD.org/~roam/roam.key.asc Key fingerprint FDBA FD79 C26F 3C51 C95E DF9E ED18 B68D 1619 4553 No language can express every thought unambiguously, least of all this one. --tqI+Z3u+9OQ7kwn0 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.7 (FreeBSD) iD8DBQE9EERb7Ri2jRYZRVMRAn2TAKC6TyaXH3GL5ufZ43/g7lej+svKuQCfQFf1 PqripgrKzBHqfz5at2WdAaA= =Feql -----END PGP SIGNATURE----- --tqI+Z3u+9OQ7kwn0-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message