Heres the lowdown

I rent out game servers off my linux box (fedora core 6)

I have 3 IP address from ARIN. I want each user to have a seperate ssh and ftp login for their specific IP address.

Do I need 3 NIC's ? Ive never done this before,, usually i seperate by port #

You could do it either way. Here is a link for ip aliasing:

http://tldp.org/HOWTO/IP-Alias/index.html

ty

the only part i dont get is the default gateway... what IP would this be,,,

I am given 3 IP's from ARIN whats hte default gateway

How do you have this setup relative to your router?

My server is located at a datacenter off a 1u rack. I beleive its connected to a switch via a Gig port.

They gave me 3 IP addresses 64.18.44.11, .12, and .13

I need to assign users an ip address, ssh and ftp login. All going to seperate home directories

The data center should be able to provide with the default gateway/router for that subnet.

You only set one default route. After all, it's the default. You do not need to separately set routes for IPs on the same subnet.

Second point, no one gets IPs directly from ARIN... well, OK the very large carriers do, but not individuals. ARIN assigns huge netblocks to ISPs and backbone carriers, and they sub-divide the IPs among their customers. That's just a nit-pick.

Last point, just connecting to a particular service on a different IP doesn't mean you go to a different directory. If you have 3 IPs, all your services are going to listen on each IP by default, so the same SSH daemon will listen on all three IP addresses, the same FTP daemon will be on all 3, etc. You need to have separate usernames in order to keep their information separate. You could define a different config file for each daemon for each of the 3 IPs, but why? That would be a pain. Just having separate users will accomplish that.

If you want to run the game servers on separate IPs in order to use the default server port, that's fine (but in most cases probably not necessary). You'll have to define which IP to use in the game server config file.

TY Chort u are correct. In my game startup paramaeter I add, +ip xx.xx.xx.xx

My question would be, how does my linux box know to listen to those IP's given to me or how does it know their available. IP aliasing ? I guess it knows after i configure those ip's in eth0 via the post above correct?

do I have to configure apache to listen to those ip's also ?

They are being given to me by a big company that owns the racks at the data center. ARIN is not giving them to me personally

IP aliasing is how your server knows it has the additional IPs. SSH and Apache will listen on all the IPs by default.