A.P. Lawrence

This article is from a FAQ concerning SCO operating systems. While some of the information may be applicable to any OS, or any Unix or Linux OS, it may be specific to SCO Xenix, Open Desktop or Openserver.

There is lots of Linux, Mac OS X and general Unix info elsewhere on this site: Search this site is the best way to find anything.

TCP/IP and NFS FAQ

How can I tell what process has a network port in use?

For example, if you wanted to know what process is using port 139, you'd do:

 lsof -i :139

The lsof tool is not just for network connections. It shows you detailed information about open files in general- not just network activity.

Comments /SCOFAQ/FAQ_scotec4lsof.html


Add your comments

Why no "Digg this!" etc.?

Unix and Linux Support

Enter your email address for automatic notification of new posts here
(be sure to whitelist 'feedburner.com' if you use spam filtering)

Control Spam and Viruses

Run your own mailserver

/SCOFAQ/FAQ_scotec4lsof.html copyright 1997-2003 (various) All Rights Reserved

Have you tried Searching this site?

Unix/Linux/Mac OS X support by phone, email or on-site: Support Rates

This is a Unix/Linux resource website. It contains technical articles about Unix, Linux and general computing related subjects, opinion, news, help files, how-to's, tutorials and more. We appreciate comments and article submissions.

Publishing your articles here