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


By using lsof (included with Linux, available from Skunkware for old SCO).

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.

See lsof also.

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