Category Archives: linux

Linux is a family of free and open-source software operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short). Myrandomtips.com is dedicated to documenting Tips I have found.

RHEL 6 memory usage check: A Manual Tool Inspired by ‘Linux Ate My RAM

Introduction If you’ve ever wondered why your Linux system seems to be gobbling up RAM—or if you’ve stumbled across the classic “Linux Ate My RAM” page at https://www.myrandomtips.com/linux/linux-ate-my-ram/—you’re not alone. That site brilliantly explains how Linux memory management works, debunking the myth that “used” memory is a bad thing by showing how buffers and cache… Read More: RHEL 6 memory usage check: A Manual Tool Inspired by… »

Red Hat 9 LVM & XFS Setup

I’ve created a handy web-based tool for Red Hat 9 users to simplify setting up and managing LVM with XFS filesystems. Built with HTML, CSS, and JavaScript, this tool generates precise shell commands based on your inputs. You can specify disks (like sdb, sdc), choose to either create a new volume group (VG) or extend… Read More: Red Hat 9 LVM & XFS Setup »

Changing Your Shell Prompt

I’m still setting up my Linux systems at work, and one of the things that I like to change is the BASH shell’s prompt. I’ve found when I’m rolling back through shell commands to see the output of past commands, there’s not a good way to separate one command from another with the standard prompt.… Read More: Changing Your Shell Prompt »

FreeNAS default password – How to reset

Having issues logging onto Freenas using the default password? You may find it a pain when your password to logon does not work, this guide will provide simple tip on how to figure out the freenas default password, rather than seeing the dreaded: Please enter a correct Username and password. Note that both fields may… Read More: FreeNAS default password – How to reset »

linux directory size

This guide will teach you several commands I use frequently on how to show the linux directory size in Centos or Redhat and what folders are using the most space all listed in MB. Here is a list of common commands I use that you may find helpful. Search current Centos or RedHat Folder You… Read More: linux directory size »

VIM Cheat Sheet

This guide will teach you the basics of VIM and how to get going quickly, and offer you a VIM cheat sheet and other useful resources on where you can learn more. While VIM can appear hard, it is a really powerful text editor and worth the effort as will save you time in editing… Read More: VIM Cheat Sheet »

How to update Plex Media Server on FreeNas 11.2

Plex brings together all the media that matters to you, organizing your personal collections alongside stellar online content, streaming music, and more, making it all look beautiful in one universal interface. It can be frustrating not being able to update Plex through the GUI like you can on Windows installs. The easiest way to upgrade… Read More: How to update Plex Media Server on FreeNas 11.2 »

Linux ate my RAM Script to Check Usage

Linux ate my ram is a worrying thing to look at the first time you check top or free -m as it appears the linux cached memory high and showing the buff/cache too high. Understanding how linux uses disk caching for the speed of your system, and how everything is ok, and how to check… Read More: Linux ate my RAM Script to Check Usage »

Increase swap space in Redhat 7 | Centos 7

250x200 how to increase swap space Redhat 7

So you would like to add more swap space in Redhat 7 or Centos 7 after installation. Sometimes it is necessary to add more swap space after installation. For example, you may upgrade the amount of RAM in your system from 512 MB to 1026 MB, but there is only 512 MB of swap space.… Read More: Increase swap space in Redhat 7 | Centos 7 »