On Fri, Sep 18, 2009 at 9:26 AM, Brian Elliott Finley
<finley@anl.gov> wrote:
Thanks for the query line. If you change the "grep" to "grep -w", you can get an accurate count for either 143 or 7143.
On a system with nginx, for example:
% netstat -an | grep -w 143 | grep ESTABLISHED | wc -l
1
% netstat -an | grep -w 7143 | grep ESTABLISHED | wc -l
1302
On really busy servers, where there's lots of TCP, UDP, and sockets in use, you can speed things up by limiting netstat to just showing TCP connections:
netstat -ant