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> The Firewall
Robert83
post Feb 23 2004, 02:11 PM
Post #1


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Hi,

Well I'm downloading Whitebox Linux 3.0 Final right now, and I will be using it for the firewall, I was thinking about :

giving it a eth0, and eth1...

use eth0 for the internet , and DROP every packet that it recieves,
however allow every outgoing packet from eth1, how good is this?
[in case that I currently don't have anyone outside our WAN?]

later of course, I need to add some other rules, since the mail server will need to be seen on the entire Internet.
what ports to open? from outside?

And can I use that drop everything for eth0, and only accept connections on a certain port[s]?
And what can I do to make those ports as safe as possible?


Sincerely
Robert B


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Robert Becskei
robert83@linuxhelp.net
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hughesjr
post Feb 23 2004, 08:45 PM
Post #2


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Sort of.....

Are you using internal IPs on the inside?

If so, Go here:

IP Masquerading ... specifically here

After getting that working ... go to section 6.4.1 and setup the secure firewall script.


How good are you at the console? I would do the minimal install for the firewall machine (it's at the bottom of the custom package selection).

Just turn off the built in firewall during install... and use the above links.


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Robert83
post Feb 24 2004, 03:25 AM
Post #3


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I'm used to console, did most of the things related to networking in console, like samba, nfs...etc

Thanx

Sincerely
Robert B


--------------------
Robert Becskei
robert83@linuxhelp.net
--------------------
May the source be with us!
--------------------
AMD X2-3800 @ 2400Mhz
2048MB DDR 400Mhz
DFI Lanparty UT4 NF4 ULTRA-D
GeForce 7800GT
250GB+250GB
Pioneer DVD-RW
17inch Samsung Syncmaster 757NF
WinXP Pro (SP2)/ CentOS 4.3
--------------------
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