Rudi Ahlers wrote: > The fact is, you can use a Linux firwall with a single NIC, as long as > you use different IP subnets and strong iptables rules to filter > traffic properly between the 2 subnets. > > another scenarion where this is used more and more these days is with > virtualization, where you won't have different NIC's for each virtual > server on the same physical server. The only way to firewall that > traffic is to use iptables and VLAN's. > And many many hosting companies use virtual hosting for their clients. > This type of setup has many caveats any it is best for the sake of newbies/noobs to say it is doable but dangerous. I know you will agree with me on this. Those well versed in networking (should) already know all about securing this schema, and can do as they like. Ljubomir