Disaster Recovery (DR) is a fundamental component of an organization’s overall business continuity strategy. Its explicit focus is on ensuring that the IT systems supporting
Category: Linux
From cmd.php to Spine: A Comprehensive Guide to Enhancing Cacti Polling and Scalability
Cacti is a powerful and widely used open-source network monitoring and graphing tool. By default, Cacti often utilizes the cmd.php poller, which, while functional, can
Incident Report: Cacti Database Connection Failure Post yum upgrade
Incident Summary After performing a system upgrade using “yum upgrade“, the Cacti monitoring system became inaccessible. The root cause was traced to a symbolic link
Comprehensive Guide to Setting Up a Containerized RADIUS Server with FreeRADIUS and a Mikrotik Router For WiFi Access with Captive Portal
In today’s digital age, the demand for secure and efficient network access control has never been higher. Organizations of all sizes are increasingly relying on
Enable Free SSL/TLS for Containerized Open-WebUI with Let’s Encrypt and NGINX Proxy (on Ubuntu)
Securing your Open-WebUI application with HTTPS is a crucial step in ensuring the privacy and integrity of data exchanged between your users and your server.
Mastering Linux Firewall with UFW (Uncomplicated Firewall): The Ultimate Command Reference & Configuration Guide
UFW (Uncomplicated Firewall) is a simplified interface for managing iptables, the standard Linux firewall. It is designed to make firewall configuration easier while maintaining powerful
Repurpose Your Old Server Hardware: Build an Enterprise-Grade Storage System at Zero Cost Using CEPH
In today’s data-driven world, reliable and scalable storage solutions are essential. However, the cost of enterprise-grade storage can be prohibitive, particularly for medium-sized and large
Don’t Send Your Company’s Private Data to China: Self-Host DeepSeek AI Model with Ollama and Open WebUI GUI
Today, we’re taking the latest AI model, DeepSeek-R1 for a spin, but not through their web or mobile app! Our focus on data privacy means
Unable to Access Ollama Models on Open WebUI After Enabling HTTPS: Troubleshooting and Resolution Guide
Introduction This guide is a continuation of my previous article, “Step-by-Step Guide to Set Up HTTPS for Dockerized Open WebUI on Linux”. If you followed
Step-by-Step Guide to Set Up HTTPS for Dockerized Open WebUI on Linux
Introduction In this guide, i will walk you through the process of setting up HTTPS for your Dockerized Open WebUI application running on a linux