Linux - NetworkingThis forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.
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I'm running a small mail server and now I would like to connect it to an IPCop firewall. I am pursuaded that it's better to dedicate a single machine to do the firewalling (as I have some old pentium PCs "resting in the courtyard"). The IPCops' manual says that it's not possible for the IPCop to work without the Green network enabled. But in my case I want a very simple setup :
"Internet -> Firewall PC -> Mail Server"
so I would like to use just the RED(internet) and ORANGE(DMZ) network of the IPCop.
Do you know if it's possible?
If not, is there any other Firewall distro who does that?
Thanx in advance!
p.s. I know that I can almost do the same simple firewalling with the IPTables command from my server without any dedicated machine. But reading these forums gave me the impression that it's always best to have a firewall machine without any advanced services running...
someone was asking somethign very similar the other day... there is no orange here. orange is logicall between red and green in terms of security. with no green in it's conventional LAN client format, what would be orange becomes the green.
if you have a only a mail server then you don't need orange interface. Put the mail server on Green and do port forwarding from red to green to whatever the services on the server.
Code:
Internet <<<<<<<<RED <<<<<< IPCOP >>>>>>GREEN>>>>>>> Mailserver
Puplic IP <<<<<<<Port Forwarding (SMTP, IMAP, POP3)>>>>>> Private IP
Quote:
orange is logicall between red and green in terms of security
that's not a completly a true statment. A DMZ is surved by a dedicated physical network adapter most of the times. You need a DMZ when you have workstations and servers on Green that shouldn't be expsoded to the outside world as the mailserver you plan to put on orange.
let's say you have a web server and you have another 100 workstation on the network. From a security point of view, it's not recommended to put the workstations on the same network as the webserver. So you put the server on a DMZ to protect other clients from possible security attacks on port 80.
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