Firewall 101

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Author: VictorOdhnervodhner@primenet.com
Date:  
Subject: Firewall 101
I am about to connect to Cox@Home. Before I bring my Linux system
online for many hours at a time, what basic protection should I drop
into place?

My planned use for the machine is all outgoing. I want to initate
outgoing sessions in Telnet, FTP, HTTP, SSH, POP client, and maybe
an X server. Considering this, if there's some simple FAQ that'll
tell me what services I should be sure to turn off, I'd appreciate
a reference.

And do I still need a firewall if I turn off unnecessary services?
E.g., do my console windows need telnetd, and if so does it have a
way to reject connects from the outside world? If I bring up X,
is that an exposure?

BTW, One friend who uses Cox and Win98 has strongly recommended
ZoneAlarm < http://www.zonelabs.com/ > for the Win98 side.

Vic