Error message

  • Warning: preg_match(): Unknown modifier '2' in os_check() (line 193 of /var/www/custom/tools/tools.inc).
  • Warning: preg_match(): Unknown modifier 'T' in os_check() (line 193 of /var/www/custom/tools/tools.inc).

How to check for open or listening ports

Forums: 
Networking

How to check for open or listening ports and services


Using the netstat command:
netstat -tulpn
Using the ss command:
ss -tulpn