Things to do after installing CentOS 7 Core edition

After installing CentOS 7 minimal edition (Core only), there are many things we can do to the new core system. Since we don’t have any GUI, the only way to configure it is via command line or Terminal console.

  • Configure the network

After installing CentOS 7 Core, the network is not enabled by default. We can check the status of the network interface using nmcli command as follow:

nmcli d


network status centos 7.png

For beginner users, it is advisable to use nmtui command to edit or activate a connection.


nmtui on centos

Select Edit a connection and press Enter. Next, select the eth0 and highlight Edit and then press Enter

nmtui on centos 1.png

On the next page, we can set the eth0 properties. We may use the automatic configuration or manual configuration for eth0. If you need guide on how to configure static IP address on CentOS 7 Core, you should go to this page.

nmtui on centos 2.png

OK, now the network configuration task has been completed.

  • Enable ssh service

It is important to have ssh server enabled on our CentOS 7 core. ssh is required to manage the server remotely via ssh protocol. By default, ssh service is not enabled. We can enable it using command

systemctl start sshd.service

Its also good to have sshd start automatically on boot

systemctl enable sshd.service

  • Update system

After we configure the network, updating the system to the most recent packages from the official repository is a good practice.

yum update

This task is to ensure that we are running the updated packages and software.



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