Date: Tue, 10 Nov 1998 21:51:48 -0600 From: Jahanur R Subedar <jahanur@jjsoft.com> To: Greg Lehey <grog@lemis.com> Cc: Joe Gleason <clash@tasam.com>, freebsd-questions@FreeBSD.ORG Subject: Re: Finding the pid of a tcp connection Message-ID: <364909D4.1203EA83@jjsoft.com> References: <00aa01be0d1c$3d9d0aa0$fe90e8c6@bug.tasam.com> <19981111135424.E20374@freebie.lemis.com>
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I am just curious. 1) Is this known as list server? 2) Is port collection lsof same as the Purdue Version. and can Purdue version be trusted to install. Thanks. Jahanur Greg Lehey wrote: > On Tuesday, 10 November 1998 at 21:37:31 -0500, Joe Gleason wrote: > > How do I find the process that is doing a connection that is > > listed in netstat? > > Idealy, I would like to write a little shell script that will > > give me the pid if I give it the local port. > > No need. Use lsof (in the ports collection). Here are some examples > my current netstat: > > Active Internet connections > Proto Recv-Q Send-Q Local Address Foreign Address (state) > tcp 0 0 freebie.http port7-22.gettysb.1084 FIN_WAIT_2 > tcp 0 0 freebie.http port7-22.gettysb.1083 FIN_WAIT_2 > tcp 0 0 freebie.http port7-22.gettysb.1082 FIN_WAIT_2 > tcp 0 0 freebie.945 h24-64-143-236.m.22 ESTABLISHED > tcp 0 0 freebie.946 h24-64-143-218.m.22 ESTABLISHED > tcp 0 0 freebie.6000 allegro.2596 ESTABLISHED > tcp 0 0 freebie.3027 websitegarage.co.http CLOSE_WAIT > tcp 0 0 freebie.2082 ctp.netradio.net.http CLOSE_WAIT > tcp 0 0 freebie.2052 205.166.76.101.http CLOSE_WAIT > tcp 0 0 freebie.6000 razzia.1024 ESTABLISHED > tcp 0 0 freebie.1016 razzia.1021 ESTABLISHED > tcp 0 0 freebie.1017 razzia.cmd FIN_WAIT_2 > tcp 0 0 freebie.1047 yana.6000 ESTABLISHED > tcp 0 0 freebie.1018 yana.1020 ESTABLISHED > tcp 0 0 freebie.cmd yana.1021 CLOSE_WAIT > tcp 0 0 freebie.6000 allegro.1141 ESTABLISHED > tcp 0 0 freebie.1019 allegro.1021 ESTABLISHED > tcp 0 0 freebie.1020 allegro.cmd FIN_WAIT_2 > tcp 0 0 freebie.1021 freefall.FreeBSD.22 ESTABLISHED > tcp 0 0 localhost.10000 localhost.1027 ESTABLISHED > tcp 0 0 localhost.1027 localhost.10000 ESTABLISHED > tcp 0 0 freebie.domain *.* LISTEN > tcp 0 0 localhost.domain *.* LISTEN > tcp 0 0 freebie.domain *.* LISTEN > udp 0 0 freebie.domain *.* > udp 0 0 localhost.ntp *.* > udp 0 0 freebie.ntp *.* > udp 0 0 localhost.domain *.* > udp 0 0 freebie.domain *.* > > # lsof -i tcp:http > COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME > httpd 266 root 15u inet 0xf8a54180 0t0 TCP *:http (LISTEN) > netscape 717 yana 28u inet 0xf8a59f00 0t0 TCP freebie.lemis.com:2052->205.166.76.101:http (CLOSE_WAIT) > netscape 717 yana 30u inet 0xf8a58ba0 0t0 TCP freebie.lemis.com:3027->websitegarage.com:http (CLOSE_WAIT) > netscape 717 yana 33u inet 0xf8a593c0 0t0 TCP freebie.lemis.com:2082->ctp.netradio.net:http (CLOSE_WAIT) > httpd 17003 nobody 15u inet 0xf8a54180 0t0 TCP *:http (LISTEN) > httpd 17694 nobody 15u inet 0xf8a54180 0t0 TCP *:http (LISTEN) > httpd 20193 nobody 15u inet 0xf8a54180 0t0 TCP *:http (LISTEN) > httpd 20195 nobody 15u inet 0xf8a54180 0t0 TCP *:http (LISTEN) > httpd 20196 nobody 15u inet 0xf8a54180 0t0 TCP *:http (LISTEN) > httpd 20197 nobody 15u inet 0xf8a54180 0t0 TCP *:http (LISTEN) > httpd 20198 nobody 15u inet 0xf8a54180 0t0 TCP *:http (LISTEN) > httpd 20203 nobody 15u inet 0xf8a54180 0t0 TCP *:http (LISTEN) > httpd 20204 nobody 15u inet 0xf8a54180 0t0 TCP *:http (LISTEN) > httpd 20398 nobody 15u inet 0xf8a54180 0t0 TCP *:http (LISTEN) > You have new mail in /var/mail/grog > # lsof -i udp:domain > COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME > named 125 root 20u inet 0xf89bcea0 0t0 UDP freebie.lemis.com:domain > named 125 root 22u inet 0xf89bce40 0t0 UDP localhost.lemis.com:domain > named 125 root 24u inet 0xf89bc960 0t0 UDP freebie.lemis.com:domain > > Greg > -- > See complete headers for address, home page and phone numbers > finger grog@lemis.com for PGP public key > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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