Category: Howto
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Oracle Virtual Box creating virtual machines in the Desktop / Laptops. It uses very less space and less memory consumption, It is very easy and simple interface for the end user to work right away. It’s is free to use.…
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Ansible ad-hoc commands are mainly useful for one time task. for example if we want to check the whether servers are reachable, or to find kernel or os version for servers, in this section we are going to see few…
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A switchover is a scheduled outage of a database or server that is explicitly initiated by a cmdlet or by the managed availability system in Exchange Server. Switchovers are typically done to prepare for performing a maintenance operation (like monthly…
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dnf or Dandified YUM utility used in since Fedora 18, RHEL / CentOS8, In this blog we are going to see dnf features and how to use. dnf package manager utility is used to install / remove / update package…
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LVM is a device mapper that manages the block devices. LVM disk can be resized, expect boot volume (/boot) all other file system can be made into LVM partitions. We can dynamically allocate / de-allocate the file system with out…
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sar informations are recorded for each and every second, we can see the current sar data’s as well as historic datas from the sar file, two files are written in the default path of sar configuration. i.e., saXX and sarXX…
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YUM – Is Yellow Dog Update / Modifier, is a command line tool used as package manager. using yum we to install / update /remove the package. Dependencies are installed automatically from the yum repository. In this section we are…
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TThere are several of methods to migrate from old to new storage, in this section we are going to migrate using pvmove for the migration, we use pvmove in physical server storage migration. Step-byStep Storage Migration using LVM is the…
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MS Teams Slash commands are shortcuts for performing common tasks in Teams: update your status, go to a specific channel, show your recent files and saved messages, and more. This will help you to quickly initiate few common tasks from…
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lsblk command list all available device or a block devices. Also read the sysfs filesystem and udev db togather information. Expect RAM disks prints in tree format. lsblk –help will show list of options that can be used. by default…
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