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Linux, finding active ports

Posted on 2013-12-17
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Last Modified: 2013-12-17
I am running RHEL 6.4

I want to find all active external ports.   For instance if I want to see if DB2 and WMQ are active I would want to know if anyone is listening on 50000 or 1414 (unless otherwise configured)

What Linux command can I use to see all active ports used externally

Thanks
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Question by:Los Angeles1
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Mazdajai earned 500 total points
ID: 39725102
You can use netstat or nmap. Netstat runs locally and tell you what ports are currently open; Nmap is a comprehensive network scan tool that allows you to probe open ports on the remote host

netstat -ant
yum install nmap
nmap --help

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