Open port

xulescu

Administrator
Sr. Member

Points: 8

Offline

Posts: 257

Open port

« on: July 17, 2006, 03:58:20 »

Hi,

I don't know in what forum to put this question ... if is not ok please moveit.

How can I see what program is listening on a specific port ? I get an error on my mysqlserver and it tell me something about "The port 3306 is already used" ...


	Logged

Tracking Deleted Domains, Link Popularity and more ...

TheGodFather

Administrator
Hero Member

Points: 202
Offline

Offline

Posts: 2570

Re: Open port

« Reply #1 on: July 17, 2006, 04:05:33 »

Hi,

To see if the port is used (is listening) then :

Code:

#for tcp
netstat -tnl
#for udp
netstat -unl

To see what process (program) is using a specific port then:

Code:

fuser -n tcp 80

where 80 is the port. You will get minimum 1 pid or more if is a multithreaded server (apache for example). Ex:

Code:

80/tcp: 2193 2277 2278 2279 2295 2813 3982 3983 8733 8734 8739

Now if you see what process it is :

Code:

ps auxwww | grep 2193

and the answer will be

Code:

root 2193 0.0 6.0 30232 7628 ? Ss Jul16 0:00 /usr/sbin/apache2 -k start -DSSL

It's enough for you ?

Regards


	Logged

█ Deleted Domains
█ Hostmaster Web Tools
█ Webmaster Web Tools

xulescu

Administrator
Sr. Member

Points: 8

Offline

Posts: 257

Re: Open port

« Reply #2 on: February 26, 2011, 01:30:45 »

The answer is:

fuser -n tcp 80

and you will get the pid as the result. after that just look after this pid and you will see the process.

ps auxwww | grep <pid>

Is everything explained in the second post.


	Logged

Tracking Deleted Domains, Link Popularity and more ...

Pages: [1]

« previous next »