How to Install/Update Security Patches on CentOS 7 using YUM

YUM is a tool for packages management and helps to install/update/upgrade any package with its dependencies from a centralized repository. yum-plugin-security this is a yum plugin which provides to install security patches on the system.

 

This article describes How to Install Security Patches on CentOS 7 using YUM

 

Step 1. Check available Security Patches: Run the following command to check available security Patches:

 

[root@linuxcnf ~]# yum check-update --security Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile  ……………………… --> libgudev1-219-78.el7_9.3.i686 from updates excluded (updateinfo)  --> libgudev1-219-78.el7_9.3.x86_64 from updates excluded (updateinfo)  --> thunderbird-78.7.0-1.el7.centos.x86_64 from updates excluded (updateinfo)  --> samba-common-libs-4.10.16-9.el7_9.i686 from updates excluded (updateinfo)  --> samba-common-libs-4.10.16-9.el7_9.x86_64 from updates excluded (updateinfo) No packages needed for security; 103 packages available [root@linuxcnf ~]#

 

In the yum check updates, there is no security patches are available.

 

Step 2. Update Security Patches: Run the following command to install/update security patches on the system.

 

[root@linuxcnf ~]# yum update --security Loaded plugins: fastestmirror …………………….. --> libsmartcols-2.23.2-65.el7.x86_64 from @base removed (updateinfo)  --> 1:grub2-pc-modules-2.02-0.87.el7.centos.7.noarch from updates removed (updateinfo)  --> libmount-2.23.2-65.el7.x86_64 from @base removed (updateinfo)  --> systemd-libs-219-78.el7_9.3.x86_64 from updates removed (updateinfo)  --> libsss_idmap-1.16.5-10.el7_9.10.x86_64 from updates removed (updateinfo) No packages needed for security; 103 packages available Resolving Dependencies [root@linuxcnf ~]#

 

Done!!! As per the above article, security patches can be installed/updated in a CentOS 7 installed machine.