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Linux
Linux related KBs
Guacamole and SSH Ubuntu 22.04 connection errors
The following workaround to ssh into ubuntu 22.04 and above server with Guacamole comes from this pageSource Page When setting up Guacamole I had issues with connecting to the ubuntu machine via a ssh connection. The server simply said connection er...
Change Pi-Hole Admin Password
This is to be run from a Terminal session on the Linux machine hosting the Pi-Hole installation. sudo pihole -a -p You will be asked to supply the new password for the Pi-Hole Admin User Output Enter New Password (Blank for no password): Confirm Password:...
SSH
General
Bash
Security
Filesystem permissions
File permissions in Linux are coded symbolically (as letters) r - read w - write x - execute And Numerically: 4 - read 2 - write 1 - execute dir permissions Octal del rename create files dir list read files contents write file conten...
How To Use Cron to Automate Tasks
Introduction Cron is a time-based job scheduling daemon found in Unix-like operating systems, including Linux distributions. Cron runs in the background and operations scheduled with cron, referred to as “cron jobs,” are executed automatically, making cron us...
Nginx Proxy Manager
Access Pihole via NPM
To add Pi-hole to Nginx Proxy Manager, you can follow these steps: Login to Nginx Proxy Manager: Open your web browser and navigate to your Nginx Proxy Manager dashboard. Add Proxy Host: Click on the "Proxy Hosts" tab on the left sidebar and then cli...
Reset Your Forgotten Ubuntu Password in 2 Minutes or Less (root)
Scraped from https://www.howtogeek.com/1287/reset-your-forgotten-ubuntu-password-in-2-minutes-or-less/ If you've ever forgotten your password, you aren't alone... it's probably one of the most common tech support problems I've encountered over the years ...
Ubuntu: How To Free Up Port 53, Used By systemd-resolved
Ubuntu has systemd-resolved listening on port 53 by default. In case you want to run your own DNS server, you can't because port 53 is already in use, so you'll get an error similar to this: "listen tcp 0.0.0.0:53: bind: address already in use".This article ...
How to Extract or Unzip .tar.gz Files in Linux
Introduction A .tar.gz file is a compressed archive format commonly used in Linux systems. The format combines multiple files and directories into a single file while reducing their size. It uses tar for archiving and gzip for compression. Knowing how to unz...
How to Find Files in Linux With the Find Command
Introduction The find command allows you to search for a specific string of characters using your Linux command-line interface. It is a highly practical tool as it is not limited to file names. You can use it to search a specific location, add options to cont...
How to Copy Files and Directories in Linux
Introduction Copying files and directories in Linux is an essential administrative task. Copies are instrumental for backing up important files or transferring them to a different location, for example, a data storage device. The cp command is useful for bas...
Proxmox Host
Proxmox VMs
Proxmox Virtual Machines
Ubuntu Specific KB
KBs specific to Ubuntu
How to install Qemu guest agent for Debian / Ubuntu
Estimated reading time: 1 min Install Qemu guest agent for Debian/Ubuntu In this article, we will help you to install the Qemu guest agent on your virtual private server. This agent is a helper daemon that exchanges information between the quest and ...