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Centos scan open ports TCP

 

Nmap is a great port scanner, but sometimes you want something more authoritative. You can ask the kernel what processes have which ports open by using the netstat utility:

  • -t TCP only
  • -l Listening ports only
  • -n Don’t look up service and host names, just display numbers
  • -p Show process information (requires root privilege)

 

netstat -tlnp

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