Yoplux

Today we will learn how to list services and open ports on Linux & more

List services with associated port the service is using

netstat -lntup
  • - l is used to list listening socket
  • - n is using to show port number
  • - t to show tcp connexions
  • - u to show udp connexions
  • - p display programme name

Show ESTABLISHED connexions

netstat -natu | grep 'ESTABLISHED'
  • - n is using to show port number
  • - a display all sockets
  • - t to show tcp connexions
  • - u to show udp connexions

Show ESTABLISHED connexions with a specific IP address

netstat -natu | 'ESTABLISHED' | 141.103.61.80

Show routing informations

netstat -r

Continuous listening for services

netstat -lntupc 

Signed Alix.

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