Ron said:
The way prices have dropped recently it is worth considering
purchasing a router, even for a single computer, and not using a
software firewall. Especially on an older computer or one with
minimal RAM where the processing load imposed by a software firewall
would slow the machine noticeably.
I'd have to disagree. If you use a router with NAT, it's still a
very good idea to use a 3rd party software firewall. Like WinXP's
built-in firewall, NAT-capable routers do nothing to protect the user
from him/herself (or any "curious," over-confident teenagers in the
home). Again -- and I cannot emphasize this enough -- almost all
spyware and many Trojans and worms are downloaded and installed
deliberately (albeit unknowing of the potential consequences) by the
user. So a software firewall, such as Sygate or ZoneAlarm, that can
detect and warn the user of unauthorized out-going traffic is an
important element of protecting one's privacy and security. (Remember:
Most anti-virus applications do not even scan for or protect you from
adware/spyware, because, after all, you've installed them yourself, so
you must want them there, right?)
I use both a router with NAT and Sygate Personal Firewall, even
though I generally know better than to install scumware. When it comes
to computer security and protecting my privacy, I prefer the old "belt
and suspenders" approach. In the professional IT community, this is
also known as a "layered defense." Basically, it comes down to never,
ever "putting all of your eggs in one basket."
--
Bruce Chambers
Help us help you:
They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety. -Benjamin Franklin
Many people would rather die than think; in fact, most do. -Bertrum Russell