firewall (thing) by everyone

A firewall is a device that will block outside computers from directly connecting to machines on a private network, while still allowing these machines to connect to outside computers.

A firewall can easily be made out of an old 486 box running *BSD or GNU/Linux, a NIC or two, and maybe a dial-up modem.

We're all missing the point on computer security	extranet	ZoneAlarm	conversation with a script kiddie
Sonic SonicWall Pro	Hidden Message behind the New York Times hacking	firewall code	SmoothWall
The pros and cons of leaving your computer on	DMZ	IPChains	Oldsmobile
iptables	proxy server	IP aliasing	IP masquerade
How to recycle a computer properly	proxy	NAT	Evil
Port knocking	AOL is not the Internet	Check Point	socks

firewall (thing)

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