Centos script update ip addresses

As you see below, it has changed the hostname to prod-server. For example, the entry for In this example, it shows as dev-server. Modify this file, and set the new hostname here. For example, change dev-server to prod-server as shown below.

Change the value here as shown below. Restart the network service, if you want any other services that are using the hostname to pickup the changes.

If this is not a production system, you can also reboot the system to make sure the hostname is changed properly, and the system is picking it up properly during startup. If you have desktop related utilities installed on your system, you can change the hostname from the GUI. You can change the ip-address of the server using ifconfig command as we discussed earlier.

Learn more. Asked 7 years, 7 months ago. Active 7 years, 7 months ago. Viewed 15k times. Here is the script:! Improve this question. Varun U Varun U 1 1 gold badge 2 2 silver badges 12 12 bronze badges. Add a comment. Active Oldest Votes. For example:!

Improve this answer. Quick links. As we know, in order to get the latest OS patches security updates , the servers need to communicate to OS repositories and this is an outbound connection. Do we have any? I would really appreciate your inputs on the above scenario. Use the FAQ Luke. Mirrors tend to use the same IP address for a long time, but of course there are no guarantees about that.

There are two ways to do so — via command line or the GUI. However, the feature was enabled by default only with version 7, which meant that eth0 and eth1 were no more.

You can set up a static IP via command line by modifying the network script of the interface. First, find the name of the network interface you want to change using the network manager command-line tool.

Prompt the system to list all network devices , along with network details:. Then, add the following information about your network under the already existing text:. Save the file and exit the text editor, returning to the command line. For these changes to take effect, you must restart the network with the command:. The output displays all the information it has on the network.

Then, open the appropriate configuration file. Use the following command and paste the device name at the end:. Open the Network Manager by running the following command in the command line:.