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Monitor TCP opened connections

Terminal - Monitor TCP opened connections
watch -n 1 "netstat -tpanl | grep ESTABLISHED"
2009-04-13 20:40:41
User: klipz
Functions: watch
14
Monitor TCP opened connections

Alternatives

There are 6 alternatives - vote for the best!

Terminal - Alternatives
watch "ss -nat | awk '"'{print $1}'"' | sort | uniq -c"
2012-12-07 19:07:33
User: ricardofunke
Functions: watch
-1

Monitoring TCP connections number showing each state. It uses ss instead of netstat because it's much faster with high trafic.

You can fgrep specific ports by piping right before awk:

watch "ss -nat | fgrep :80 | awk '"'{print $1}'"' | sort | uniq -c"

Know a better way?

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What others think

That's all fine and good until somebody fires up a p2p client.

Comment by TheMightyBuzzard 328 weeks and 3 days ago

Oh, also the -l is redundant after you've already specified -a.

Comment by TheMightyBuzzard 328 weeks and 3 days ago

also helpful would be the less obvious inclusion of sudo right before the netstat invocation. Nice tip klipz

Comment by linuxrawkstar 328 weeks and 2 days ago

sudo lsof -i -T -n

Comment by professoralex 324 weeks and 4 days ago

Your point of view

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