Could you give an example iptables script? (Help... I want to learn this stuff)

[Joris Huizer <jorishuizer@planet.nl>]

Hello everybody,

I'm planning to use iptables as it seems it's powerfull and it will let 
me choose really what is allowed and what is not (because of p2p stuff 
etc. which allways keeps complaining - and out of curiosity)

However, I never used iptables before and it looks like it's got some 
learning curve :-P I found a great tutorial at 
http://iptables-tutorial.frozentux.net/iptables-tutorial.html ..
I'm not going to try myself just like that as I'm afraid I might kill 
the internet connection like that, therefor I want to ask for some help.

These are the details:
I am connecting to the net by dhcp, with an assigned (dynamic) IP 
address. I want to be able to...
- surf the web
- email (using smtp-server to send, pop-server to receive)
- use ftp for uploads/downloads
- use ssh, only outgoing, I don't need to access this computer by ssh
- I sometimes use a chat prog called amsn
Did I forget something basic ?

If the script allready covers those... great! Then I'll just install and 
read through the entire doc afterwards... otherwise, can you post the 
lines I have to add?

I hope someone is so kind to post an example. I can't yet read the dhcp 
script to the details of what is accepted and what not, so...

Thanks for any help!
Merry Christmas :-)

Joris Huizer