IT hands-on

Ansible uses Yaml language  for its configuration files. These configurations are sent from the controller server to the managed nodes . The controller  c

MDADM is the  raid array utility for multiple disks administration. We install it on our system as follows: We need to pick the disks that we are going t

We could add storage to a KVM virtual machine using the qemu-img program. Images are created by default in the /var/lib/libvirt/images/ directory. To be

Units replace i a way scripts for launching programs and targets are the equivalents of runlevels . A unit describes a service on the system. The unit h

To display the running processes on a system, we use the below command: PID : unique Process ID number that identifies a process. TTY : the terminal in

When installing KVM-QEMU using the below command in debian systems, we might get an error when trying to use the virsh command: When using the below co

To display log messages for the most recent boot, we could use the below command: To list the different recent boot logs by date and time, we use the f

We could see the user ID and the group ID of a file using for example the below command: We could use " find " to look for files according to t

With NFS we can mount directories from the remote NFS server so that they appear as a local partition on the NFS client. We can define client access to