Re: Open SMTP Port, Can't close
will stop your running exim. You cannot install it, as exim is afaik an essential part of the system. what you can do tho is bind it to the internal network card only. A
sudo /etc/init.d/exim4 stop
should take you through a menu driven setup of exim where you can choose what devices to listen on... i think
sudo dpkg-reconfigure exim4-config
As for cups - the 631 is the webpage for manageing printers. This, also, should only be bound to 127.0.0.1. You can change that via /etc/cups/cupsd.conf.
just bind the interface to 127.0.0.1:631 and nobody can access it anymore.
hope it helps
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