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Opensource firewall for network

Tags:
  • Firewalls
  • Open Source
  • Business Computing
Last response: in Business Computing
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September 18, 2013 2:49:24 AM

Hello guys,

Between a router and a switch is there anyway I can get an OSS to go on a computer to act as a firewall and then pass acceptable packets on while declining legit requests.

Cheers!

More about : opensource firewall network

September 18, 2013 3:05:34 AM

Quote:
declining legit requests.

You sure about that?

IP Tables should do it. You'll need a system with two ethernet ports though.
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September 18, 2013 3:08:58 AM

There are several such distros dedicated to exactly that.

ipCop, untangle, Monowall, to name a few.
http://www.techradar.com/us/news/software/applications/...

Currently, I'm using untangle between the router and the rest of the network.

Oh, and you don't want to "decline legit requests". You want those to go through...:) 
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September 18, 2013 6:51:47 AM

USAFRet said:
There are several such distros dedicated to exactly that.

ipCop, untangle, Monowall, to name a few.
http://www.techradar.com/us/news/software/applications/...

Currently, I'm using untangle between the router and the rest of the network.

Oh, and you don't want to "decline legit requests". You want those to go through...:) 


Is it a straight forward setup or is it complicated? will it have to be assigned ports or is it intelligent?
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September 18, 2013 7:08:57 AM

AirTech said:
USAFRet said:
There are several such distros dedicated to exactly that.

ipCop, untangle, Monowall, to name a few.
http://www.techradar.com/us/news/software/applications/...

Currently, I'm using untangle between the router and the rest of the network.

Oh, and you don't want to "decline legit requests". You want those to go through...:) 


Is it a straight forward setup or is it complicated? will it have to be assigned ports or is it intelligent?


Not too complicated. And generally well documented. You just have to know what you want it to do.
First requirement - a PC with 2 or more ethernet ports. And the ability to know which is which.

Modem->router->Firewall->switch->devices. Everything flows through the firewall.
And as they are very low resource hungry, they will run on just about any old box.
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September 18, 2013 9:06:47 PM

Shouldn't even need the router; the firewall can be set up to do that. You want WiFi on the right of the firewall, too.
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September 20, 2013 6:37:16 AM

needs to be on the left modem-->firewalll-->router....
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September 20, 2013 6:53:01 AM

AirTech said:
needs to be on the left modem-->firewalll-->router....


You could do away with the router. Let the firewall appliance do all the DHCP stuff.

modem->firewall->switch->devices.
If you have a 3rd NIC on the firewall, a WiFi broadcast device could connect there.
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September 20, 2013 4:11:05 PM

You could just attach the WAP to the switch, too.
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!