ss

• reemplazo de netstat
  • TCP
  • UDP
  • sockets
  • ICMP

• ss: todas las conexiones
• ss -l listening sockets
• ss -a all sockets
• ss -a -t all TCP sockets
• ss -a -u all UDP sockets
• ss -a -x all Unix sockets
• ss -a -w all raw sockets
• ss -a -4 all IP4 sockets
• ss -a -6 all IP6 sockets
• ss -t -r state stablished
• ss -t -r state listening
• ss -a state stablished '( dport = :https or sport = :https )'
  • dport: destintantion port
  • sport: source port
• ss -a state stablished '( dport = :ssh or sport = :ssh )'
• ss -a dst <IP_ADDRESS>: listado con destino a IP
• sudo ss -t -p: identificar el proceso que usa el socket

/via: https://www.howtogeek.com/681468/how-to-use-the-ss-command-on-linux/