Re: ZoneAlarm-type firewall for Linux?

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Author: Victor Odhner
Date:  
To: Main PLUG discussion list
Subject: Re: ZoneAlarm-type firewall for Linux?
Hi, Craig.

>... many other processes will completely escape detection by using
>port 80 which passes through most every proxy and firewall unfiltered
>and thus you would never know about the activity anyway which leads
>to a false sense of security ...
>

ZoneAlarm will, as I said before, catch *any* new program trying to
connect to the Internet. It does not just filter based on ports, but on
the originating executable. So I can use Firefox all day, but if I put in
a new version, ZoneAlarm will recognize that and block it until I
say it's OK.

That's the functionality I'm looking for under Linux. It is *not*
false security, it's pretty darned effective. That's how I caught
AcroRead trying to connect out without my permission: ZoneAlarm
caught it. But it could be happening under Linux and I would not
know, because port 80 is open to all.

Vic

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