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Monitor open connections for httpd including listen, count and sort it per IP

Terminal - Monitor open connections for httpd including listen, count and sort it per IP
watch "netstat -plan|grep :80|awk {'print \$5'} | cut -d: -f 1 | sort | uniq -c | sort -nk 1"
2010-03-15 09:27:43
User: ik_5
Functions: watch
18
Monitor open connections for httpd including listen, count and sort it per IP

It's not my code, but I found it useful to know how many open connections per request I have on a machine to debug connections without opening another http connection for it.

You can also decide to sort things out differently then the way it appears in here.

Alternatives

There are 3 alternatives - vote for the best!

Terminal - Alternatives
watch "netstat -plan | grep -v LISTEN | grep \":80 \" | awk {'print \$5'} | cut -d: -f 1 | uniq -c | sort -nk 1"
2013-09-05 13:50:00
User: simonsimcity
Functions: watch
0

Doesn't list connections to other ports than port 80. Not f.e. 8080 or 8091.

Excludes programs listening for connections, like your favorite webserver.

Know a better way?

If you can do better, submit your command here.

What others think

netstat -pltn|awk '/:80/ {++B[$5]} END {for(a in B) print a, B[a]}' (add the awk code to sort by value or use the pipe to sort -nk1)

Comment by widget 166 weeks and 1 day ago

The suggested commands will also list connections to 127.0.0.1:8091, which is one of the default ports of couchbase (http://www.couchbase.com/docs/couchbase-manual-2.0/couchbase-getting-started-install-ubuntu.html).

Comment by simonsimcity 95 weeks ago

Your point of view

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