Guides and Tutorials / Tutorial
· Tutorial ·

Setting up a cloned CentOS 8 server

Once the cloning of your Cloud server with CentOS as operating system is done, you can use the newly deployed machine to test your website or have a pre-production environment. To start operating with your clone you will need to provision your server with a series of prior modifications.

Preparing the environment

Access the dashboard of the cloned machine and click on the icon corresponding to the SSH console.

enter image description here

Login to the cloned machine with the root user and the password of the original machine (note the special characters in the ASCII code).

enter image description here

Once you have logged into the cloned server you will need to modify the /etc/sysconfig/network-scripts/ifcfg-eth0 file, for example with the nano editor and modify the existing public IP in the file to the new public IP of the cloned machine, which you will have received by mail.

nano ifcfg-eth0

enter image description here

ifcfg-eth0 file with the initial configuration

enter image description here

E-mail with the access credentials

enter image description here

Updated ifcfg-eth0 file

enter image description here

Once edited you must start the network service by executing the following commands:

nmcli networking off
nmcli networking on

You can check the modification of the newly configured IP by executing the command:

ifconfig -a

enter image description here

Modifying the hosts and hostname files

Connect via SSH to the new server and modify the /etc/hosts and /etc/hostname files changing the original hostname to the hostname you received by email.

nano /etc/hosts

Hosts file with the initial configuration

enter image description here

Hosts file with the final configuration

enter image description here

nano /etc/hostname

Hostsname file with the initial configuration

enter image description here

Hostname file with the final configuration

enter image description here

Modify root user password

To change the root passwd, run the following command, indicating the password you received by e-mail.

Where it says # passwd root, enter the password that appears in your email.

enter image description here

In this way, the new cloned machine will have the same IP, with its corresponding root name and password finishing the cloning process and starting up the cloned server.

danger IMPORTANT: to save the changes with the nano editor remember to you will have to press the keys control + x of the keyboard.

i