Show open network connections of a process

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  • lsof does not support selecting process and network, but you can do: 
lsof -i |grep <pid|processname>

or a little bit faster: 

lsof -Pnp <pid> |grep TCP
  • you can also select a certain socket type, address and port: 
lsof -i 4tcp@slashdot.org:80
lsof -i 6udp@ns1.sixxs.net:53
  • netstat: 
netstat -tnap |grep <pid|processname>

Category:Lsof Category:Network Category:Shell Category:Snippet Category:Debugging Category:Netstat

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