Insight: How to Install Updates on CentOS 7
CentOS 7 is one of the popular server side Linux operating system. Today, we will show you the method to install updates on CentOS 7.
Tutorial To Install Updates On CentOS 7 Operating System.
There are two ways to install updates on CentOS 7.
Method 1: Automatic updates on CentOS 7.
You can use yum-cron script to configure automatic updates on CentOS 7. Install yum-cron script using following command:
sudo yum install yum-cron
Enable and start the service:
sudo systemctl enable yum-cronsudo systemctl start yum-cron
To verify that the service is running:
systemctl status yum-cron
Configuring yum-cron
There are two configuration files, the hourly configuration file yum-cron.conf and the daily configuration file yum-cron-hourly.conf.
To edit the yum-cron configuration file, open the file in your text editor:
sudo nano /etc/yum/yum-cron-hourly.conf
We changed the update_cmd to security and enabled unattended updates by setting apply_updates to yes:
[commands] update_cmd = security update_messages = yes download_updates = yes apply_updates = yes random_sleep = 360
The second sections defines how to send messages.
In the [base] section you can override the settings defined in the yum.conf file. For example, you can exclude specific packages from being updated.
[base]
debuglevel = -2
mdpolicy = group:main
exclude = firefox*Method 2: Manual updates on CentOS 7.
sudo yum check-updatesudo yum install curlMeanwhile, if you want to prevent any pacakges being updated, you can do it with the help of third party app called versionlock , run the following command to install it:
sudo install yum-plugin-versionlockRun the following command to prevent specific packages from being updated:
sudo yum versionlock curl-*
Summary: Multiple method to install updates on CentOS 7.
![How To Remove Files And Directories In Linux [Examples]](https://itsubuntu.com/wp-content/uploads/2022/03/How-To-Remove-Files-And-Directories-In-Linux-.jpg)
![How To Recursively Change The File's Permissions In Linux [CHMOD Linux]](https://itsubuntu.com/wp-content/uploads/2022/02/How-To-Recursively-Change-The-Files-Permissions-In-Linux.jpg)
