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Old 03-01-2012, 05:55 AM   #1
Registered: Aug 2005
Location: Manchester, England
Distribution: Ubuntu 14.10
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Free software replacement for Microsoft ISA

We're looking at moving away from ISA and to Threat Management Gateway (, does anyone know of a free software replacement that:

Has a nice GUI that allows us to see what's going on in real time e.g. who has VPN sessions, how long they've been connected, etc.

Is compatible with or has a tool that can convert our ISA firewall config - recreating all those rules from scratch in a new system would be difficult, time consuming and would probably break a lot of things.

Has good logging and alerts

Plays nicely with Active Directory
Old 03-01-2012, 08:23 AM   #2
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Registered: May 2004
Location: Belgium
Distribution: Debian, Slackware, Fedora
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IMHO, if you're moving away from ISA, it's a bad idea to (re-)use those same firewall rules.
As far as I know there doesn't exist something to convert your ISA config in a sane way (making it both usable and optimal for your new setup).

As for replacements, it mostly depends on your needs.
Pfsense is one of the many popular ones:


firewall, isa

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