Linux systems administrator and infrastructure engineer specializing in server optimization, networking, and cloud deployments.
Mark has spent the last decade running Linux fleets — from a 6-node K3s home cluster to multi-region production deployments. He writes about VPS provisioning, networking, and the tools that keep servers boring.
Areas of expertise
Zero-Downtime Live VPS Migration to a New Provider in 2026Achieve zero-downtime live VPS migration to a new provider in 2026 with this expert guide. Learn replication, DNS, and traffic redirection strategies for sea...
When to Switch from VPS to Dedicated Server: A 2026 Compa...Deciding when to switch from VPS to a dedicated server involves evaluating performance, security, and cost. Understand key indicators and make an informed ch...
Fail2ban Not Banning IP Addresses: Troubleshooting Guide ...Is Fail2ban failing to ban IPs? This 2026 troubleshooting guide covers common causes like misconfigured jails, log path issues, and firewall conflicts to hel...
SSH Permission Denied (Publickey) Debugging GuideEncountering 'SSH permission denied (publickey)'? This comprehensive guide provides step-by-step debugging for client and server-side issues to restore access.
Fixing Let's Encrypt Rate Limit Reached Errors in 2026Learn how to fix 'Let's Encrypt rate limit reached' errors in 2026. This guide covers common causes, diagnostic steps, and practical solutions for certificat...
Docker Swarm on a Single VPS: When Does It Make Sense?Explore when Docker Swarm on a single VPS is a viable solution for development, testing, and small-scale production deployments. Understand its benefits and ...
Choosing between Debian and Ubuntu for your VPS? This 2026 comparison details stability, package management, community support, and security for optimal serv...
MySQL Slow Query Log Analysis Tutorial: Boost PerformanceLearn to analyze MySQL slow query logs step-by-step. Identify and optimize inefficient database queries to boost application performance and server responsiv...
Nginx 502 Bad Gateway Diagnostics Checklist: Fix Your ServerResolve Nginx 502 Bad Gateway errors with this expert diagnostics checklist. Learn to troubleshoot backend issues, Nginx config, and resource limits for a st...
How to Add IPv6 to a VPS: A Step-by-Step TutorialExtend your VPS capabilities by adding IPv6 support. This tutorial guides you through configuring network interfaces and firewall rules, migrating from IPv4-...
VPS Requirements for a 50k Monthly Visit WordPress SiteDiscover the essential VPS requirements for a WordPress site handling 50,000 monthly visits. Learn about CPU, RAM, storage, and network configurations for op...
Nginx vs Caddy on a Small VPS: A 2026 Benchmark ComparisonCompare Nginx and Caddy's performance on a small VPS in 2026. Discover which web server offers better efficiency and speed for your projects.
VPS for Telegram Bot 2026: A Comprehensive Setup GuideLearn how to set up and deploy your Telegram bot on a Virtual Private Server (VPS) in 2026. This guide covers OS selection, security, Python environment, and...
Ubuntu 24.04 VPS Hardening Checklist for Initial Server S...Harden your Ubuntu 24.04 VPS with this essential initial server setup checklist. Secure SSH, configure UFW, install Fail2Ban, and automate updates.
