ping tracert stackoverflow
// Ping is a networking utility program or a tool
// to test if a particular host is reachable.
// Ping sends a packet
// and gets it back to monitor statistics
ping www.google.com
yulin@Yus-MacBook-Air ~ % ping www.google.com
PING www.google.com (172.217.12.164): 56 data bytes
64 bytes from 172.217.12.164: icmp_seq=0 ttl=54 time=30.155 ms
64 bytes from 172.217.12.164: icmp_seq=1 ttl=54 time=24.548 ms
64 bytes from 172.217.12.164: icmp_seq=2 ttl=54 time=20.656 ms
64 bytes from 172.217.12.164: icmp_seq=3 ttl=54 time=22.961 ms
64 bytes from 172.217.12.164: icmp_seq=4 ttl=54 time=29.101 ms
64 bytes from 172.217.12.164: icmp_seq=5 ttl=54 time=20.582 ms
64 bytes from 172.217.12.164: icmp_seq=6 ttl=54 time=20.347 ms
--- www.google.com ping statistics ---
88 packets transmitted, 88 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 19.120/23.303/46.777/4.749 ms
// The traceroute (windows: tracert) command is a Command Prompt command
// that's used to show several details
// about the path that a packet takes from
// the computer or device you're on to
// whatever destination you specify.
// 9 * * * (means I'm behind a firewall)
traceroute www.google.com
yulin@Yus-MacBook-Air ~ % traceroute www.google.com
traceroute to www.google.com (172.217.12.164), 64 hops max, 52 byte packets
1 10.0.0.1 (10.0.0.1) 6.099 ms 4.425 ms 4.065 ms
2 96.120.65.29 (96.120.65.29) 19.416 ms 16.598 ms 15.994 ms
3 162.151.170.21 (162.151.170.21) 15.539 ms 17.207 ms 16.632 ms
4 162.151.151.170 (162.151.151.170) 15.334 ms 16.686 ms 16.844 ms
5 be-345-ar01.needham.ma.boston.comcast.net (96.108.70.33) 17.782 ms 19.520 ms 19.729 ms
6 be-7015-cr02.newyork.ny.ibone.comcast.net (68.86.90.217) 24.997 ms 24.851 ms 24.390 ms
7 be-10390-pe03.111eighthave.ny.ibone.comcast.net (68.86.83.90) 24.843 ms 31.563 ms 25.073 ms
8 as174.600wseventh.ca.ibone.comcast.net (66.208.229.114) 24.941 ms 23.448 ms
66.208.229.86 (66.208.229.86) 27.151 ms
9 * * *
10 216.239.62.170 (216.239.62.170) 25.216 ms
216.239.62.146 (216.239.62.146) 24.494 ms
216.239.62.170 (216.239.62.170) 24.947 ms
11 108.170.248.35 (108.170.248.35) 26.169 ms
108.170.248.116 (108.170.248.116) 33.111 ms
108.170.248.99 (108.170.248.99) 25.593 ms
12 lga25s62-in-f4.1e100.net (172.217.12.164) 23.619 ms 31.648 ms
209.85.255.36 (209.85.255.36) 24.935 ms