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…
Apache Cassandra is a free, open-source NoSQL database designed for high availability and linear scalability with no single point of failure.…