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Linux Commands

Moving Volume Group in Linux
Linux / Linux Administration / Linux Advanced Commands / Linux Commands / LVM

How to move a Volume Group from one system to another

February 25, 2023February 25, 2023 - by Jayabal Thiyagarajan - Leave a Comment

There are situations where we would be required to move a whole volume group from one system to another system for some requirement. As part of this, it also moves …

How to move a Volume Group from one system to another Read More
Removing SAN disk or Storage Device (LUN) from Linux
Linux / Linux Administration / Linux Commands

Six Simple Steps to Remove a Storage Device (LUN) from Linux

February 19, 2023February 20, 2023 - by Prakash Subramanian - 1 Comment

There are situations where a storage device or LUN must be removed from running system without any issue. This happens for a variety of reasons, but most commonly, when the …

Six Simple Steps to Remove a Storage Device (LUN) from Linux Read More
How to Resize an Online Multipath Device on Linux
Linux / Linux Administration / Linux Advanced Commands / Linux Commands

How to Resize an Online Multipath Device on Linux

September 25, 2022February 25, 2023 - by Rasool Cool - Leave a Comment

Disk space on Linux can be expanded by adding a new LUN or resizing an existing LUN on the system. In most cases, the online resizing of the multipath device …

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How to Mapping Linux Block Devices to Storage LUNs
Linux Administration / Linux Basic / Linux Commands

How to Find SAN disk LUN id in Linux

May 25, 2022December 10, 2022 - by Vinoth Kumar - 2 Comments.

In some cases, you may need to find a block device mapped against a logical unit number (LUNs) for filesystem (FS) expansion or disaster recovery (DR) activity. Also, this information …

How to Find SAN disk LUN id in Linux Read More
Repairing EXT4 Filesystem in Linux
fsck / Linux Administration / Linux Commands / LVM

How to Check and Repair EXT4 Filesystem in Linux

December 13, 2021December 13, 2021 - by Magesh Maruthamuthu - 3 Comments.

The fsck (stands for File System Consistency Check) is used to check and repair one or more Linux filesystems. This check will run automatically at boot time when a filesystem …

How to Check and Repair EXT4 Filesystem in Linux Read More
How to Remove Multiple Files at once on Linux
Linux Administration / Linux Basic / Linux Commands

How to Remove Multiple Files at once on Linux

December 6, 2021December 7, 2021 - by Magesh Maruthamuthu - Leave a Comment

Deleting (or removing) a file in Linux from the command line can be done using the rm command. It allows you to delete more than one files at once. Also, …

How to Remove Multiple Files at once on Linux Read More
How to Run Multiple Commands at once in Linux
Linux Commands

How to Run Multiple Commands at once in Linux

December 2, 2021December 2, 2021 - by Magesh Maruthamuthu - 2 Comments.

As a Linux administrator, you may know how useful the command line can be to work with various activity such as installing the application, installing the system patch, and restarting …

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FAQ / Linux Administration / Linux Basic / Linux Commands

Linux tee command with examples

July 14, 2021July 14, 2021 - by Magesh Maruthamuthu - Leave a Comment

The tee command reads standard input (stdin) and writes the result to standard output (stdout) and one or more files simultaneously. It basically displays the command output on the terminal …

Linux tee command with examples Read More
FAQ / Linux Administration / Linux Basic / Linux Commands / security

How to configure firewalld rules in Linux

May 3, 2021May 6, 2021 - by Magesh Maruthamuthu - 3 Comments.

The firewall is essential for controlling the flow of network traffic in and out of the Linux server. It enables users to control incoming network traffic on host machines by …

How to configure firewalld rules in Linux Read More
FAQ / Linux / Linux Administration / Linux Commands / Log Analysis / Log Monitoring / Log Viewer

How to use journalctl to analyze logs in Linux

March 18, 2021March 22, 2021 - by Magesh Maruthamuthu - 1 Comment

systemd is the default system manager in most of the major Linux distributions, which comes with a new logging daemon called ‘journald’. For many years, system and kernel logs in …

How to use journalctl to analyze logs in Linux Read More

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Recent Posts

  • How to move a Volume Group from one system to another February 25, 2023
  • Six Simple Steps to Remove a Storage Device (LUN) from Linux February 19, 2023
  • How to Resize an Online Multipath Device on Linux September 25, 2022
  • How to Find SAN disk LUN id in Linux May 25, 2022
  • How to Resize Existing SAN Disk on Linux May 16, 2022

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