Linux Netstat Network Operations Command

Netstat
The syntax for the netstat command is:

netstat [options]

The common parameters of netstat are as follows:

-a displays all sockets including those that are listening

-C is displayed again every 1 seconds until the user interrupts it

-I displays the information format of all network interfaces with "Ifconfig–e"

-N Displays the network connection situation with the network IP address instead of the name

-R display core routing table with "Route–e"

-T shows TCP protocol connectivity

-U displays UDP protocol connections

-V Display work in progress

Example:

1 The netstat command is used in this machine, and its output is as follows

The code is as follows

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Active Internet connections (w/o servers) Proto recv-q send-q Local address Foreign TCP 0 256 10.153.89.66:SSH 10.153.21.168:1054 established TCP 0 0 10.153.89.66:SSH 10.153.21.166:1222 established TCP 0 0 10.153.89.66:1521 10.153.21.166:2625 established TCP 0 0 10.153.89.66:1521 10.153.21.166:2623 established ...... Active UNIX domain sockets (w/o servers) Proto refcnt Flags Type State I-node Path UNIX 9 [] Dgram 919/dev/log UNIX 2 [] STREAM CONNECTED 50246124 UNIX 3 [] STREAM CONNECTED 3914245 /tmp/. ice-unix/dcop18694-1074144356 UNIX 3 [] STREAM CONNECTED 3914244 UNIX 3 [] STREAM CONNECTED 3914127/tmp/. X11-unix/x0 .....