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Old 10-18-2004, 02:01 AM   #1
linuxprogrammer
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Registered: Jul 2004
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List of unused ports on a machine


For a certain application, I create a socket at run time, that listens to the specified port. How do i know that which port numbers are available for use? I am not talking about 'legally' available, I just want to know the port numbers that are currently not being used on my system.
 
Old 10-18-2004, 02:42 AM   #2
maxut
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Registered: May 2003
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"nestat -an|grep -i listen" command will show u what ports listened currently. most of port numbers listed in /etc/services file.
http://www.iana.org/assignments/port-numbers
 
  


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