Simple netstat question.

[jols]

I am seeing a bunch of these when running netstat:

tcp 0 384 servername.domain.com:sonar adsl-69-107-115-60.ds:59612 ESTABLISHED

So what is "sonar"?

It looks like so sort of persistant connection? And how would I break this?

Thanks for any advice!!!

[UNIXy]

I am seeing a bunch of these when running netstat:

tcp 0 384 servername.domain.com:sonar adsl-69-107-115-60.ds:59612 ESTABLISHED

So what is "sonar"?

It looks like so sort of persistant connection? And how would I break this?

Thanks for any advice!!!

From /etc/services:

sonar 572/tcp # sonar
sonar 572/udp # sonar

Find out what process is using the connection like this:

netstat -anltp|grep -i sonar

Once you obtain the process id, you can terminate it with

kill -9 <PID>

Be sure to investigate the process.

Regards