Ports

[mouniernetwork]

Hello,

I am setting up a new firewall on my network and I would like to open only the ports that I use could sombody please tell me ?

I know that 80 and 24 are probably two of them but thats it.

Thanks

Mounier Network

[Eddy]

You should start with making sure that all ports are closed and then open only the ones really needed.
Which port need to be opened is system/network setup specific.

For a decent port list you can have a look at http://www.iana.org/assignments/port-numbers
Let your firewall (at least in the beginning) warn you.
That way you can see what application is trying to use a certain port and you can say yes/no to it.

And ofcourse there is more to security than just the firewall
Have a look at this site too http://www.markusjansson.net/erecent.html
It has many good tips for setting up security.
And have a look at my site (see my signature), I hope you never need the instructions there.
But you never know...