Friday, April 19, 2013

Linux Firewalls that can connect to a domain?

Q. Hi all (again)

Anybody know of a linux based firewall that has the ability to connect to an active directory domain controller to authenticate users?

I have a Server 2003 Enterprise x64 Domain controller...

Anybody know of a firewall that can do this

PS: Can't afford Smoothwall!

A. First question, why would a firewall (network device) need to authenticate against AD?
If trying to control users in the Firewall with AD , try maybe Radius. There are a few free versions out there.

PS Smoothwall is "free", as most Linux firewalls. What may not be free is add-ons or support...

How can I protect other machines on my Lan using virtual firewall appliance ?
Q. If I have a Windows machine with a virtual linux based firewall appliance inside of it, I know how to protect the host machine with the firewall. How do I protect the other machines on the LAN using the virtual appliance ? Would I only have to set the "Gateway" setting of the other machines to the address of the virtual machine ?

A. Yes, and set their firewalls to block anything not comming from the appliance.

what Linux firewall distro should i install?
Q. i have a compaq presario 7470 with a 533mhz AMD k-6 processor, 15GB hard drive, and 256MB of ram. What linux firewall distrobution should i load up onto it? any other ideas besides a firewall for this machine? what else could i use it for?
i want to use it as an extra layer of protection to protect my home network (about 4 pc's, 1 mac, and 3 tablets) from "bad" things on the internet. i just wanted to load up a firewall distro, configure it ( i have configured a friends before, but never installed myself) and just let it run and protect me.

A. I suggest pfSense. You will need 2 ethernet ports. PCI ethernet cards are cheap.
http://www.pfsense.org/
Hardware Sizing Guidance
http://www.pfsense.org/?option=com_content&task=view&id=52&Item



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