Tag: ubuntu

All the articles with the tag "ubuntu".

• Optimize Ubuntu Logs: btmp Log Rotation

  28 Aug, 2024

  btmp logs failed logins and grows forever on internet-facing servers. Set up logrotate to keep it under control before your disk fills up.

• Switch Ubuntu to Hardware Enablement (HWE)

  14 Jul, 2024

  The Ubuntu HWE kernel brings newer hardware support to LTS releases — how to switch from generic to HWE and what you gain.

• Ubuntu Debian packages have been kept back error

  12 Jul, 2024

  Packages have been kept back during apt upgrade — what it means, why it happens, and how to safely install or hold those packages.

• Update a Single Package Using APT

  11 Jul, 2024

  Update just one package with apt without upgrading everything else — the right flags, version pinning, and held package gotchas.

• UFW Basics: Setting Up Your Linux Firewall

  10 Jun, 2024

  UFW makes iptables manageable — allow and deny rules, app profiles, default policies, and the 5-minute setup for any new Linux server.

• User and Group Management in Linux

  30 May, 2024

  Create, modify, and delete users and groups on Linux — useradd, usermod, groupadd, sudo access, and /etc/passwd explained.

• Set the Timezone in Ubuntu with timedatectl

  12 Sep, 2023

  Set, verify, and sync your timezone in Ubuntu using timedatectl — one command to fix the clock on a newly provisioned server.

• How to install Docker rootless

  18 Feb, 2023

  Install Docker in rootless mode step by step — user namespaces, subuid config, and running containers without ever touching sudo.

• Install docker on Ubuntu/Debian

  17 Feb, 2023

  The official, no-nonsense way to install Docker Engine on Ubuntu and Debian — repository setup, key import, and one command to verify it works.

• Ubuntu & Bash tutorial & basic utilities

  3 Aug, 2016

  Essential bash utilities for Ubuntu newcomers — file management, text processing, process control, and the commands you'll type every day.

• Adding extra Swap to Linux

  28 Jul, 2013

  Out of RAM and no time to reimage? Add swap via a file on any partition using mkswap, swapon, and fstab — done in under 5 minutes.

• Remove all old installed but unused kernels

  12 Jul, 2013

  Old kernels pile up in /boot and eat disk space — safely remove unused kernels on Ubuntu and Debian with apt and purge-old-kernels.