How to add a PPA repository using Ansible?
To add a PPA repository using Ansible, use Example
How to find all IP address of a Linux server
To list all configured IP addresses on a server, you can use the command To find the main IP, use
How to check old login history with last command
To see login history on a Linux system, you can use the “last” command. -n 10 limit result to last
One of the configured repositories failed (MariaDB100)
On a Cpanel server, when running “yum update”, I got the error message “One of the configured repositories failed (MariaDB100)”.
Out Of Memory (OOM) Error
OOM (Out Of Memory) error happens when a server run out of Memory. When a server runs out of memory,
odoo Unable to find Wkhtmltopdf on this system
On an odoo installation, I got the error “Unable to find Wkhtmltopdf on this system”, when generating reports. This error
apt error doesn’t support architecture ‘i386’
On an Ubuntu server, when running “apt update” command, I got the following error message This error is because the
Failed to mount /sysroot XFS Boot failure
On an Amazon EC2 server, the server won’t boot. On checking the serial console, the server was stuck with an
How to install PPTP VPN on Rocky Linux 8
PPTP on Rocky Linux is provided by the EPEL repository, so enable EPEL repo by running Install the pptpd package
Allow PPTP VPN connection on firewalld
To allow PPTP VPN connection when using firewalls, run the following commands. Allow 1723/tcp Allow gre protocol or Enable IP
How to take screenshot with ffmpeg
ffmpeg provides x11grab driver that can be used to take screenshots. You can use the following command to take screenshots,
pvcreate Device /dev/sdb excluded by a filter
When creating LVM physical volume with the command “pvcreate”, I got the following error This disk was previously used as