Disable Email and FTP on Server

[IT_Architect]

When I upgrade to a new server, sometimes I have to switch between new and old, and sometimes end up back on the old if there are problems. Shutting off the processes doesn't work because the moment you reboot, it comes back. The problem is, I end up with emails both places. (I keep the same IPs on the new server.) I need a way to shut off the email and ftp during this time so that no information is lost.

 

[zEitEr]

Hello,

Disable services at boot time?

Close ports with a firewall?

 

[IT_Architect]

Hello,
Disable services at boot time?

What is the best way to do that. That is not part of DA.

 

[Richard G]

On Centos until 6.x by chkconfig.

chkconfig --pure-ftpd off (or proftpd if using proftpd)
and
chkconfig --exim off

You still have the chance that Directadmin starts them again. So closing ports might be easier.

 

[zEitEr]

What is the best way to do that. That is not part of DA.

Close the ports with a firewall

 

[IT_Architect]

Close the ports with a firewall

I didn't plan on deploying the firewall yet, but that's what I'll do. I was thinking maybe the answer would be to rename the executables.

 

[zEitEr]

There are several possible solutions, it's just a matter of how much efforts you want to do, and how much time you have. You can even uninstall ProFTPd and Exim.... but the simplest would be to close the ports with a firewall... or change ports in /etc/proftpd.conf and /etc/exim.conf


exim:

daemon_smtp_ports = 25 : 587 : 465

to for example:

daemon_smtp_ports = 1025 : 10587 : 10465

proftpd:

Port                    21

to for example

Port                    1021

and restart the services.

Then later change the ports back to original values.