apt — Guides | MCSA Guru

How to Remove the Proxmox Subscription Notice and Add the No-Subscription Repo

Disable the Proxmox enterprise repo, add the pve-no-subscription repo, fix the apt 401 error, and understand the login subscription nag without breaking updates.

Sysadmin Desk Aug 28, 2026 8 min read

A WSL terminal on Windows running Linux command-line tools installed with apt, with no virtual machine

Windows 10 & 11

Run Linux Command-Line Tools on Windows Without a VM

Run Linux command-line tools on Windows without a virtual machine using WSL. Install with apt, work on your Windows files, and use free tools locally — no uploads.

MCSA Guru Team Jun 28, 2026 4 min read

Terminal-style cover showing apt installing Docker Engine on Ubuntu Server with the official Docker repository configured

Pillar Guide

Docker & Containers

How to Install Docker on Ubuntu Server Step by Step

Install Docker on Ubuntu Server the right way: add the official apt repo and GPG key, install docker-ce plus the Compose plugin, and verify it works.

Sysadmin Desk Jun 6, 2026 9 min read

#apt

How to Remove the Proxmox Subscription Notice and Add the No-Subscription Repo

Run Linux Command-Line Tools on Windows Without a VM

How to Install Docker on Ubuntu Server Step by Step