3 ms·

I can't speak to ss and ip, but apparently netstat actually operates by opening these exact files [1]. [1] https://github.com/ecki/net-tools/blob/master/lib/pa

• txutxu 9y ago
  ss too, uses the same files than thew article, see: strace -e open ss -s
  • vbernat 9y ago
    This is more an exception than a rule. ss mostly uses the netlink interface, except when using "-s".