netstat command local address format

Question

I have below netstat -ao result.

Proto  Local Address
TCP    0.0.0.0:22
TCP    127.0.0.1:3306
TCP    165.120.144.11:139
TCP    [::]:80

In this result what does IP 0.0.0.0, 127.0.0.1, 165.120.144.11 and [::] indicates?

See this [too](http://stackoverflow.com/questions/20882/how-do-i-interpret-netstat-a-output) — Suvarna Pattayil, Aug 09 '13 at 11:52
I know :: is IPv6 type of IP address and 127.0.0.1 is localhost or your own computer. — Edper, Aug 09 '13 at 11:54

score 7 · Accepted Answer · edited Jul 06 '23 at 18:49

7

0.0.0.0 is the wildcard address - which means your machine is listening on port 22 (SSH) on all interfaces/IP addresses that it can see.

[::] is another way to represent this for IPv6.

127.0.0.1 is the loopback address; which means your machine is listening on port 3306 (MySQL) on localhost only.

165.20.144.11 is most likely your external/internet facing IP address.

edited Jul 06 '23 at 18:49

J. Scott Elblein

answered Aug 09 '13 at 11:55

jtravaglini

1 Answers1