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Tip 4 - How do I know what process is listening on what port in RedHat Linux 9?

Use the command:

netstat -natp

For example, to see what process is listening on port 80 (http) use:

netstat -natp | grep :80

 

Here is a Google search you can do on the same subject:

http://www.google.com/search?sourceid=navclient&ie=UTF-8&rls=GGLG,GGLG:2005-49,GGLG:en&q=what+process+is+listening+on+what+port