two nics on debian

Discussion in 'Installation/Configuration' started by vruz, Jun 15, 2007.

  1. vruz

    vruz New Member

    Does anyone can help me?
    I have a testing server running debian etch that should listen for requests on one public ip and on a private lan. What should I do?
    Two nics is the solution? So how to configure?
    Virtual ethernet?
    Routing?
    I've tried googling a lot, but only found tutorials about eth bonding or some techniques like that.
    I'm confused.
    Please help me!

    TIA
     
  2. edge

    edge HowtoForge Supporter

    Have a look at the Debian Sarge setup (page 3).
    It's for Debian Sarge, but it's the same for Debian Etch.
    The 1st NIC will be eth0. The virtual NIC's are eth0:0 eth0:1, etc..
    The 2nd NIC will be eth1. The virtual NIC's are eth1:0 eth1:1 ....
     
  3. MisterVlad

    MisterVlad New Member

    ok... how about this one, i have 2 ip adresses, if i point the second IP address to the same computer, will i just set up a virtual eth0:0 or whatever?

    or does it really matter?
     
  4. edge

    edge HowtoForge Supporter

    Have a look at the link in my 1st reply.

    It's showing how you can add the extra IP(s), so that they are virtual ones.

    I've got 8 IP's setup that way on my system.
    One for FTP, one for the normal HTTP stuff, 3 for DNS, one for POP3, one for SMTP, and one for remote stuff.

    With the firewall I'm manageing the IP's and correct ports for it.
    So.. If I scan the "FTP" IP, I only see the needed FTP ports open. If I scan the DNS IP, I only see the needed DNS port open.. etc. etc.
     

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