I have recently moved the majority of my sites over to my CentOS Linode VPS and I was experience some load issues that prevented me from gaining SSH access. As such, I decided to restart my VPS. After the restart, I found that my sites were not reachable…lame.
First, I checked the firewall found here:
So…the firewall was fine. Next, I attempted to restart the network via:
I was surprised to receive the following error:
Bringing up interface eth0: Device eth0 has different MAC address than expected, ignoring. [FAILED]
Alrighty…bizarre. So with the help of this article, I was able to determine that eth0′s MAC address:
was different than the MAC address found in:
A simple edit to the above file and a quick network restart solved my problem and brought my sites back up! w00t!