All the articles under tutorials.
Samba is a free, open-source implementation of the SMB/CIFS network protocol that lets Linux servers share files and printers with Windows,…
Running your own VPN gives you full control over your traffic, privacy, and connection security. It encrypts your data on untrusted public…
IntelliJ IDEA is a full-featured IDE for JVM and Android development made by JetBrains. It includes built-in debugging support, Docker and…
Steam is a cross-platform digital distribution platform by Valve Corporation that gives you access to thousands of games across every genre,…
Redmine is one of the most popular open-source project management and issue tracking platforms. It is built on the Ruby on…
VirtualBox is a free, open-source, cross-platform virtualization application maintained by Oracle. It lets you run multiple guest operating systems simultaneously on…
PostgreSQL (also called Postgres) is a free, open-source, object-relational database management system with a strong reputation for reliability, SQL standards compliance,…
VMware Workstation Player is a mature, stable virtualization platform that lets you run multiple isolated operating systems on a single physical…
A properly configured firewall is one of the most important layers of security for any internet-facing server. UFW (Uncomplicated Firewall) is a user-friendly front-end for managing iptables rules that ships pre-installed on Ubuntu. Its defaults are sensible: block all incoming connections, allow all outgoing connections. No outside traffic reaches your server unless you explicitly open a port. This guide covers how to configure a UFW firewall on Ubuntu 18.04, from setting default policies and application profiles to writing allow and deny rules for specific ports, IPs, and subnets. <strong>Prerequisite:</strong> You need sudo access. Configure UFW Firewall on Ubuntu: Defaults, SSH, and Application Profiles If UFW is not installed, add it with: bashsudo apt install ufw Check the current status: bashsudo…
UFW (Uncomplicated Firewall) is a user-friendly front-end for managing iptables rules on Ubuntu. It ships pre-installed and simplifies tasks that would…