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Firewall PC questions?

post #1 of 10
Thread Starter 
2 Questions:

1. From the following kit is it possible to run a firewall PC with a linux install?

A. the PC spec
1000Mhz EPIA Via processor
Mother board has 1 onboard LAN port
1 Gb PC2100 RAM
10Gb PATA HDD
extra 10/100 LAN PCI card

B. Cable/DSL router - Netgear WGT624
C. Modem Router - Netgear DG834G - diasble the wireless routing.

2. The layout i was thinking is as follows:

Internet -> C - > A -> B connecting all the PCs in my house to (Wireless and Wired)

Is this possible do you think?
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post #2 of 10
You could, but what software are you thinking?

untangle.com might be your answer, although they would want more hard drive space and ram but it's an effective solution.
post #3 of 10
Yes, given the specs it could run it no problem. Pfsense would run perfectly fine (due to its low resource usage) but if you wanted to run Untangle with most of the options enabled such as the "Virus blocker" (iirc it actively scans network traffic for malicious code/soft) you might want to get some more ram, as I found out it uses quite a bit with everything enabled. Theres also Smoothwall but I'm not sure about that as I have not played with it much. No need for a linux install as they do not need a hostOS, they act as their own OS.

And to answer your final question, the configuration of said layout should be fine.
Edited by g137murk - 3/14/11 at 8:20am
post #4 of 10
Definitely. PFSense would be the first choice, but you should also check out Astaro, which is an amazing firewall (and so much more). (I've ran it on a P3 with 768 MB's and it worked quite well).
    
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post #5 of 10
Thread Starter 
Hi Guys, Thanks for the feedback.

In terms of RAM the mobo only has 1 slot and the chipset is a Via 266 chipset (cannot remember of the top of my head which one!) so 1GB PC2100 is the limit.

However i may have a 2.5" 80Gb HDD that will fit in the case that i am using (its a Casecom Mini Itx case with only 2.5"HDD and Slim Optical drive slots.

So in terms of positions in the network, I am right in putting the modem/router at the front directly conected to the internet, then the linux firewall PC, then the cable/DSL router for the rest of the LAN?
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post #6 of 10
Yes just as long as you disable the Wifi on your Netgear DG834G, I'm assuming you have DSL. It would be Netgear DG834G (DSL router) -> Firewall Box -> Netgear WGT624 (to distribute Wifi/wired connections).
post #7 of 10
Thread Starter 
Quote:
Originally Posted by g137murk View Post
Yes just as long as you disable the Wifi on your Netgear DG834G, I'm assuming you have DSL. It would be Netgear DG834G (DSL router) -> Firewall Box -> Netgear WGT624 (to distribute Wifi/wired connections).
I have ADSL from O2

The DG834G currently is my modem and router all in one.

When connecting the firewall PC I take it i will only need straight through cables.

ie - Internet (ISP) -> RJ11 cable into -> Modem (DG834G) -> std LAN RJ45 cable into -> NIC 1 of Firewall PC then NIC2 of Firewall PC -> std LAN RJ45 cable into -> WAN RJ45 port of the WGT624 -> routing to all PCs via wireless/Std LAN RJ45 cable as applicable.

or do i need any crossed pair RJ45 cables?
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post #8 of 10
You could also ditch your router, and set up your firewall to do routing as well (and DHCP serving etc.).
    
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post #9 of 10
Thread Starter 
I would need to buy a switch then right? I may as well use what i have and then get comfortable using it as I ahve all the parts i listed (ie both netgear routers) in my home now!
Edited by Mitche01 - 3/14/11 at 10:36am
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post #10 of 10
I give a vote for pfSense also....
Check if you can put your modem in "Bridge mode"
Plug your router straight into your WAN port on the PC based router of choice (pfSense, m0n0wall)
Make the other NIC act as LAN & hook this up to a switch of your choice (5p, 8p, 12p, 24p)

Now set up the PC based router to do all you networking needs (LAN & WAN)
pfSense has a lot of options & packages for extra functionality.
It is easier to use if the modem is in bridge mode (NAT ++)
(I used this for 4 years before I switched to a Windows based router)

Connection is as follows: (Modem)-(pfSense)-(Switch)-(Your computers+Access point)

This setup ensures minimal setup & maintainance,
and you configure your whole network from one place (The web interface of pfSense)

TIP: Always keep a pre-setup normal router close for when you mess up pfsense, or the computer breaks. Then you just switch the PC for the router..and things are more or less working... The wife seems to like this...
    
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