The article explains why the old Postman rpm no longer works on CentOS or RHEL after Red Hat switched to dnf and stricter dependency checks, citing missing library errors such as libgdk‑pixbuf2.0.so.0.
It then shows how to set up an official Postman repository by adding a repo file under /etc/yum.repos.d, which directs the package manager to the correct binaries and simplifies future updates.
With that repo in place, installing Postman is just one command—sudo dnf install postman—and the guide offers quick checks for missing libraries, optional Snap installation for sandboxed users, and troubleshooting steps like removing conflicting Electron packages or reviewing console logs.
Overall, the piece reassures power users that getting Postman up and running on CentOS or RHEL is straightforward once you bypass the outdated rpm and use either the repository or Snap method.
The guide explains how to install the lightweight MATE‑style text editor Pluma on Ubuntu 22.04 LTS, noting that the package is already in the official Jammy repositories but a clean apt update helps avoid conflicts with any custom PPAs. Installation is performed with sudo apt install pluma, which pulls only the core editor and minimal dependencies rather than an entire desktop environment. After installation you can verify it with pluma --version or launch it from the terminal, and optionally set Pluma as the system’s default editor using sudo update-alternatives --config editor. Finally, the article shows how to open files directly from the file manager by selecting Pluma as the preferred application.
The guide shows how to install the modern GPU‑Viewer front‑end on Ubuntu 22.04 by adding its official PPA (ppa:thopiekar/gpu-viewer), updating APT’s package index, and installing the gpu‑viewer package together with its required back‑ends (mesa‑utils, vulkan‑tools, ocl‑icd). After installation you can launch GPU‑Viewer from the menu or by running gpu-viewer, which displays OpenGL, Vulkan, and OpenCL information in separate tabs. For deeper diagnostics you may also install the raw command‑line tools (glxinfo, vulkaninfo, clinfo) and, if the Vulkan tab reports “no devices found,” add your user to the render group with sudo usermod -aG render $USER and re‑login. This method avoids manual compilation or environment tweaks while providing a single graphical window that consolidates all GPU details.
The passage is a step‑by‑step guide for installing and configuring Ubuntu’s Uncomplicated Firewall (UFW) on version 22.04 LTS, emphasizing why a lightweight host‑based firewall is preferable to more complex solutions. It walks the reader through updating packages, installing UFW, setting default deny/allow policies, enabling the service, and verifying its status. The tutorial then shows how to open needed ports (e.g., HTTP, HTTPS, SSH from a specific subnet), add or remove individual IP rules, enable moderate logging, and finally disable or reset the firewall when testing. Overall, it provides concise command‑line instructions for creating a functional, minimal firewall that protects a home or small‑office Ubuntu system.
The passage explains how to replace Ubuntu 22.04’s default cURL— which lacks newer protocol support such as TLS 1.3 and HTTP/2—by adding the official “curl‑team” Launchpad PPA and installing the updated package from it. It walks through updating APT, installing software-properties-common (to get add-apt-repository), adding the PPA, refreshing the package lists again, and then reinstalling curl so the newer version supersedes the stock one. After installation you verify the upgrade with curl --version, and optional cleanup steps show how to remove the PPA and revert to the distribution’s original build if needed. Overall, it provides a quick, command‑line method for obtaining a modern cURL binary on Jammy without compiling from source.
DebugPoint published 5 less popular features that make Ubuntu 22.04 LTS an epic release.
Howtoforge published a tutorial about how to Install CyberPanel on Alma Linux 8.
Tecadmin showing you how to enable SSH server on Ubuntu 22.04.
Brasero is a lightweight GNOME‑friendly CD/DVD burning program that lets users rip, burn, and copy discs without the hassle of complex configuration.
To get it on Ubuntu 20.04 or Linux Mint you first enable the universe repository with `sudo add-apt-repository universe`, run `sudo apt update` to refresh the package list, then install the tool using `sudo apt install brasero`, which pulls all required libraries automatically.
After installation you launch Brasero from the terminal or application menu, try burning a blank CD‑R to confirm it opens without errors, and if any dependency problems arise you can resolve them with `sudo apt --fix-broken install` or by adding backports or manually fetching the appropriate `.deb` package.
If you prefer more features or a different desktop environment KDE users might switch to K3b while the lightweight Burn app remains an alternative; in any case, the three‑step process of enabling universe, updating apt, and installing Brasero keeps things simple and reliable.
This guide walks through practical SSH hardening steps that stop attackers from taking control of a server. It starts by disabling root login, tightening ciphers and MACs, and turning off password authentication to force key‑based access. The instructions then add idle timeouts, lower maximum authentication attempts, and install Fail2Ban to block brute‑force IPs. Finally, it reminds admins to keep OpenSSH up to date and shares a real example of a hardened host surviving aggressive scans without compromise.
This guide shows how to obtain PHP 7.4 on Ubuntu 22.04 by adding Ondřej Surý’s “ondrej/php” PPA, which supplies older PHP releases that the default 8.1 repository lacks. After installing prerequisite tools, you add the PPA, create an APT pin (version 7.4*) to prevent automatic upgrades, and then install the core interpreter plus any needed extensions such as php7.4‑fpm, mysql, curl, etc. The tutorial explains how to hook PHP 7.4 into Nginx (enabling and pointing to the php7.4‑fpm socket) or Apache (disabling php8.1 and enabling libapache2‑mod‑php7.4), followed by a quick phpinfo() test to confirm the correct version is running. Finally, it notes optional cleanup steps—removing the pin if you ever want to upgrade and verifying that services are started and configured correctly.
This article walks through three terminal‑based ways to get Discord running on Ubuntu 22.04: a Snap install (sudo snap install discord), downloading and installing the official .deb package with wget, dpkg -i, and fixing dependencies via apt-get install -f, and pulling the Flatpak from Flathub after setting up Flatpak support (sudo apt install flatpak → flatpak remote-add … → flatpak install flathub com.discordapp.Discord). It explains the trade‑offs of each method—Snap is the quickest but runs in a sandbox; the .deb gives native integration and easier APT upgrades; Flatpak offers strong isolation and bundled libraries at the cost of larger downloads and slightly slower startup. The guide also notes how to resolve common dependency issues (e.g., missing libgconf-2.so) when using the .deb approach. Finally, it helps you choose the best option for your workflow before launching Discord from the application menu.
Pixeluvo is a Windows‑only photo editor that can be run on Ubuntu 20.04 by using Wine, so the article begins by explaining how to add 32‑bit support and install the necessary Wine packages. The guide then walks through creating a clean wine prefix, installing missing Microsoft runtimes with winetricks, downloading the Pixeluvo installer, and launching it under Wine while noting where to find the executable afterward. An optional section shows how to create a desktop shortcut so that the program appears alongside native apps, and it gives practical tips for adjusting UI scaling on HiDPI screens. Finally, the article lists common pitfalls such as missing architecture settings or shared‑object errors, offers quick fixes, and reminds readers that performance may lag behind the Windows version, suggesting lighter alternatives like GIMP or Darktable if needed.
The article gives a step‑by‑step walk through installing Salt on CentOS 8 by first enabling the EPEL repository and then pulling in both master and minion packages. It explains why Salt is preferable for keeping dozens of servers in sync, using declarative state files instead of repetitive SSH scripts. After editing `/etc/salt/master` and `/etc/salt/minion`, restarting the services, and accepting a key, the guide shows how to ping the node and apply a simple hello package state to prove everything works. It wraps up by warning about common traps such as SELinux blocks or firewall rules that must be opened for Salt’s 4505/4506 ports.
A Debian 11 user who wants the newest versions of apps like Spotify or VS Code will see that installing snapd from the backports repository bundles dependencies and cuts out manual version headaches. The guide begins by reminding you to run sudo apt update, then uses sudo apt -t bookworm-backports install snapd so you get a modern daemon rather than an old package in the main repo. After enabling the snapd socket with systemctl, it optionally links /var/lib/snapd/snap to /snap for classic confinement, tests the installation with snap version, and demonstrates installing hello-world to confirm everything works. Finally, it lists common hiccups—such as a missing service or classic confinement errors—offers quick fixes, and wraps up by encouraging you to simply run sudo snap install whenever new software is needed.
This tutorial shows how to install the privacy‑focused LibreWolf browser on Ubuntu 22.04 by adding its own APT repository (a deb line placed in /etc/apt/sources.list.d/librewolf.list) and importing the project’s GPG signing key into /usr/share/keyrings. After updating the package index, you install the browser with a single sudo apt install librewolf, then verify it works by running /librewolf/librewolf --version or launching it from the desktop menu. The guide also lists typical problems—missing repository entry, GPG “NO_PUBKEY” errors, or missing dependencies like libsqlite3-0—and provides quick fixes for each. By following these steps you get LibreWolf installed side‑by‑side with any existing browsers without affecting Ubuntu’s default packages.
This guide walks you through adding the official WineHQ APT repository on Ubuntu 22.04, importing its GPG key into /etc/apt/keyrings, and creating a signed winehq.list entry for the Jammy release. After updating the package index you choose one of three branches—stable, staging, or development—and install it with sudo apt install -y --install-recommends winehq-<branch> (which also pulls in optional tools like winetricks). It then shows how to verify the installation (wine --version), run a simple Windows executable as a test, and resolve common issues such as missing libfaudio0, kernel ABI changes, or performance quirks. Finally, it suggests cleaning up the hidden ~/.wine directory periodically and notes that you can switch branches later if a particular build misbehaves.
This quick guide shows how to install and configure Fail2Ban on a fresh Ubuntu 22.04 system by first updating the package index and installing the fail2ban package, which automatically enables its daemon at boot. It then instructs you to copy /etc/fail2ban/jail.conf to /etc/fail2ban/jail.local so custom settings survive upgrades, and demonstrates enabling the SSH jail (or any other service) by editing jail.local to set enabled = true, adjust bantime, findtime, and maxretry. An optional example adds a user‑defined jail for a web application with its own filter and log path, after which you restart the service and verify active jails using fail2ban-client status. Finally, it suggests monitoring /var/log/fail2ban.log and tweaking ignoreip or other parameters to reduce false positives while keeping brute‑force protection lightweight.
TechRepublic published a tutorial showing you how to install SuiteCRM Customer Relationship Management platform as a virtual machine.
FOSS Linux showing you how to upgrade to Fedora 36.
