How to configure network redundancy in LAMP (CentOS)?

albie17 · 01-18-2011, 11:41 PM

Hi there LQ peeps,
Our machine has two NIC on it but i'm only using one NIC, how do i make the most of the other one? I'm wondering if i can use it as a redundancy or load balanced but i dont know how. Any thoughts? Thanks

jmc1987 · 01-19-2011, 12:24 AM

Well if you are configured static ip and have 2 ips you can configure each card with an ip. Then setup your name servers with your registar and point each name server to a different ip. So if you take 1 nic down or one fails you still get dns resolution to your box. How ever this isn't a true solution for network redundency but it does give you a little bit of redundency.

kirukan · 01-19-2011, 04:11 AM

Network bonding may help for network redundancy in-case if one physical network down it won't effect to the system. Even if you need to connect to the different networks, its possible to create multiple bonds with different network address.