"port already in use" error. How do I?

phonecian · 10-09-2004, 09:52 AM

Hi Forum,
When I try to start my Lotus Notes server, the screen print reports two port conflicts
"Port =6400 errno=98 Address already in use"
and
"TCP/IP port nr 25 is already in use on this system"
I'm on SuSE 8.2.
How can I see which applications are using these ports and reconfigure them to use other ports. I'm running SuSE 8.2.
Thanks

acid_kewpie · 10-09-2004, 10:06 AM

port 25 is SMTP... you already have sendmail or another smtp server running...

phonecian · 10-09-2004, 10:23 AM

So far as I can see, I haven't installed any of the mail applications that SuSE packages. In fact the Suse install is very basic with no network options selected at all. But it does look like you're right. How can I see what applications are using these ports (and kill them!)

acid_kewpie · 10-09-2004, 10:45 AM

"ps ax" will probably list sendmail, qmail, postifx or ssmtp. Don't kill it though... stop the service nicely! "/etc/rc3.d/sendmail stop" for example. i presume YaSt can also stop services very well, but i've never used it...

hw-tph · 10-09-2004, 10:49 AM

Try lsof. lsof means "list open files" - everything in Unix is a file, even network connections. lsof -i or netstat -pla --tcp will show what's listening.

Håkan