Why there are so many services running

arahmancsd · 11-15-2018, 11:22 AM

I am running to find out about running services in linux. Unfortunately I am getting so many services are running and also so many ports are open. The confusing part is same port is open is both TCP and UDP. If TCP is only open, can I close UDP one?Running services

teckk · 11-15-2018, 12:25 PM

look at

Code:

ss -ap

or

Code:

netstat -ap

That image you posted shows what is running on what port.
You have a mail server running, ssh server, DNS server, netcat, samba...They are running because you have them running.

arahmancsd · 11-15-2018, 01:00 PM

Quote:

Originally Posted by teckk

look at

Code:

ss -ap

or

Code:

netstat -ap

That image you posted shows what is running on what port.
You have a mail server running, ssh server, DNS server, netcat, samba...They are running because you have them running.

Thanks for your reply. How can I close them for always. It should stop. I tried killing them, but it appears after restart.

scasey · 11-15-2018, 01:06 PM

What distribution are you running? We need to know that to advise you how to turn off services.
Which services do you want to turn off, and why?

teckk · 11-15-2018, 01:10 PM

You haven't told anything about what you are using. What distribution of linux, if it's systemd or not...

Quote:

I tried killing them, but it appears after restart.

Of course they do. They are services that are enabled to start after boot. Don't kill services that way. If you don't want them to run then disable them.

Give output of

Code:

uname -a

Or tell what you are using.

arahmancsd · 11-15-2018, 01:38 PM

Quote:

Originally Posted by teckk

You haven't told anything about what you are using. What distribution of linux, if it's systemd or not...

Of course they do. They are services that are enabled to start after boot. Don't kill services that way. If you don't want them to run then disable them.

Give output of

Code:

uname -a

Or tell what you are using.

Thanks, I should be able to send email, see website in port 80, use samba only for root, have access to wordpress for configuration,have access to mysql with wordpress,
ssh (this is all I should run, anything else should be stopped)

the output of uname command
Linux friend 3.2.0-4-686-pae #1 SMP Debian 3.2.96-2 i686 GNU/Linux

scasey · 11-15-2018, 02:04 PM

Quote:

Originally Posted by arahmancsd

Thanks, I should be able to send email, see website in port 80, use samba only for root, have access to wordpress for configuration,have access to mysql with wordpress,
ssh (this is all I should run, anything else should be stopped)

the output of uname command
Linux friend 3.2.0-4-686-pae #1 SMP Debian 3.2.96-2 i686 GNU/Linux

That list covers pretty much everything that's running, I think, but I'll leave it to the Debian experts to advise how to stop services.

hazel · 11-16-2018, 10:50 AM

I'm no expert, but Debian now uses systemd and you stop services for good by using (as root) systemctl disable service_name. That won't kill the running service -- you do that with systemctl stop service_name -- but it will stop it being activated in future sessions.