Git is an open-source version control system, which supports your development tasks, especially in distributed code projects. Installation Git can be easily installed on Linux systems with th...

Docker is a set of platform as a service (PaaS) products that use OS-level virtualization to deliver software in packages called containers. The service has both free and premium tiers. The sof...

Here is a bash script that you can use to install and set up QEMU, libvirt, libvirt-clients, bridge-utils, virtinst, and virt-manager on Ubuntu 22.04: #!/bin/bash sudo apt-get update sudo apt...

Enable IOMMU nano /etc/default/grub GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on iommu=pt" update-grub Enable VFIO nano /etc/modules vfio vfio_iommu_type1 vfio_pci vfio_virqfd Install V...

sudo adduser username Create a new user sudo userdel username Delete a user sudo usermod -aG groupname username ...

UFW (uncomplicated firewall) is a firewall configuration tool for Linux* that runs on top of IPTables, included by default within Ubuntu distributions. It provides a streamlined interface for c...

Lock SSH cat <<EOF >> /etc/ssh/sshd_config MaxAuthTries 3 PermitRootLogin no PasswordAuthentication no PermitEmptyPasswords no UsePAM yes PubkeyAuthentication yes EOF OR sed -i -e ...

Change Hostname hostnamectl set-hostname newhostname Change IP Address in Ubuntu 20.04 LTS Create a new file /etc/netplan/01-netcfg.yaml network: version: 2 renderer: networkd e...

System administrators automate repetitive tasks all the time. Bash scripts provide many programs and features to carry out system automation tasks. The expect command offers a way to control in...

Automatically mount the disk to the file system: cat <<EOF >> /etc/fstab /dev/sdc1 /media/share auto nosuid,nodev,nofail 0 0 /dev/sdb2 /media/share auto nosuid,nodev,nofail 0 0 /dev...