Результат выполнения команды PING для rbl-fishing.ru.:

PING rbl-fishing.ru (104.21.53.69) 56(84) bytes of data.
64 bytes from 104.21.53.69 (104.21.53.69): icmp_seq=1 ttl=56 time=19.6 ms
64 bytes from 104.21.53.69 (104.21.53.69): icmp_seq=2 ttl=56 time=19.5 ms
64 bytes from 104.21.53.69 (104.21.53.69): icmp_seq=3 ttl=56 time=19.5 ms
64 bytes from 104.21.53.69 (104.21.53.69): icmp_seq=4 ttl=56 time=19.5 ms
64 bytes from 104.21.53.69 (104.21.53.69): icmp_seq=5 ttl=56 time=19.5 ms

--- rbl-fishing.ru ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4002ms
rtt min/avg/max/mdev = 19.548/19.569/19.612/0.022 ms