Linux Tutorial

How To Check CPU Usage And Server Load In WHM To Fix Website Performance Issue

My website host provider uses WHM ( Web Host Manager ) to manage multiple websites that are CPanel-based. WHM is a very good tool to monitor website performance, you can use it to check CPU, ram, and disk space usage percentage, it can also monitor and manage server processes. It is an all-in-one platform for

How To Check CPU Usage And Server Load In WHM To Fix Website Performance Issue Read More »

How To Fix Error Job For Vncserver@:1.service Failed Because The Control Process Exited With Error Code. See “systemctl Status Vncserver@:1.service” And “journalctl -xe” For Details When Start VNC Server.

After install VNC server on CentOS, when i run command # systemctl start vncserver@:1.service to start it, i meet bellow error message.

How To Fix Error Job For Vncserver@:1.service Failed Because The Control Process Exited With Error Code. See “systemctl Status Vncserver@:1.service” And “journalctl -xe” For Details When Start VNC Server. Read More »

How To Fix Another App Is Currently Holding The Yum Lock Waiting For It To Exit Error

When i install tigervnc server in CentOS with yum command # yum install tigervnc tigervnc-server -y, i meet below error messages. Loaded plugins: fastestmirror, langpacks Existing lock /var/run/yum.pid: another copy is running as pid 3339. Another app is currently holding the yum lock; waiting for it to exit… The other application is: PackageKit Memory :

How To Fix Another App Is Currently Holding The Yum Lock Waiting For It To Exit Error Read More »

How To Fix CentOS Network Is Unreachable & Could Not Retrieve MirrorList Could Not Resolve Host mirrorlist.centos.org Unknown Error

Recently I installed CentOS 7.7 on Oracle VirtualBox. After installation, when I run command yum update, it shows could not retrieve mirrorlist could not resolve host mirrorlist.centos.org unknown error.

How To Fix CentOS Network Is Unreachable & Could Not Retrieve MirrorList Could Not Resolve Host mirrorlist.centos.org Unknown Error Read More »