How to add a PPA repository using Ansible?
To add a PPA repository using Ansible, use – name: add ppa apt_repository: validate_certs: no repo: ‘ppa:ondrej/php’ state: present Example — -…
Linux
How to find all IP address of a Linux server
To list all configured IP addresses on a server, you can use the command hostname -I To find the main IP, use…
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)”. [root@cp ~]#…
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, processes get…
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 was because…
apt error doesn’t support architecture ‘i386’
On an Ubuntu server, when running “apt update” command, I got the following error message root@s196379:~# apt update Hit:1 http://mirror.fcix.net/ubuntu focal InRelease…
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 error message…
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 dnf install epel-release -y Install the…
Allow PPTP VPN connection on firewalld
To allow PPTP VPN connection when using firewalls, run the following commands. Allow 1723/tcp sudo firewall-cmd –permanent –zone=public –add-port=1723/tcp Allow gre protocol…
DevOps
Autodeploy https://www.cyclic.sh https://tekton.dev/docs/getting-started/ – CI/CD CircleCI It is a cloud-based CI/CD service that can be used to build, test, and deploy applications.…
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, you can…
pvcreate Device /dev/sdb excluded by a filter
When creating LVM physical volume with the command “pvcreate”, I got the following error root@sok1 ~ # pvcreate /dev/sdb Device /dev/sdb excluded…