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I am trying to configure a Public(Static) IP in Cent OS 6.4. For this, I made a copy of eth0(added local IP, so that I can connect the system to Internet) and named it to eth0:0(added Public IP, so that the system can be accessible via SSH).

After restarting the network devices, am still not able to get the required result.

I want to access this system via SSH with the configured public IP.

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  • Does your eth0 is already "facing" the Lan interface of your modem/router that is directly connected to the internet? The way you asked it seems that you added a secondary ip on a interface that is inside your network.
    – user34720
    Mar 19, 2014 at 10:49
  • Yes! eth0 is connect to Internet and added Public IP to eth0:0. Have to configure it on single Ethernet card. Mar 19, 2014 at 10:58
  • Don't the DNS of ISP has to know your IP(public) for routing incoming packets? Mar 19, 2014 at 11:26

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