Tutorials · 9 min read Complete Guide to NSLookup Command Solve DNS issues faster with nslookup, from basic domain lookups to deeper record checks. Guides you through A, AAAA, MX, CNAME, PTR, and SOA records, reverse DNS, authoritative…
Tutorials · 33 min read WordPress Security: 10 Ways to Keep Your Website Safe WordPress security isn’t optional, especially once your site starts getting traffic. This guide walks you through 10 practical ways to protect your WordPress site, from stronger logins and…
Tutorials · 13 min read Understanding DNS: Complete Guide to Domain Name System Understand how DNS turns domain names into server addresses and why it matters when websites or email stop working. Covers DNS lookups, resolvers, nameservers, A, CNAME, MX, TXT,…
Tutorials · 13 min read Dedicated IP Address: Why It Matters Know when a dedicated IP address is actually worth paying for. Walks through shared vs dedicated IPs, IPv4 and IPv6 basics, email reputation, FTP access, SSL compatibility, SEO…
Tutorials · 10 min read Apache Web Server Guide 2026 Apache web server has powered websites for over 25 years. While NGINX overtook it in market share, Apache remains relevant for its flexibility, mature module ecosystem, and LAMP…
Comparisons · 21 min read Best Open Source LLMs: Complete 2026 Guide Compare the open source LLMs worth watching in 2026, from Llama 4 and Mistral AI to Gemma, Qwen, DeepSeek, and StarCoder. Looks at strengths, trade-offs, licenses, local deployment…
Tutorials · 9 min read How to Fix 503 Service Unavailable Errors A hands-on guide to fixing 503 Service Unavailable errors, from checking server resources and logs to restarting services, reviewing firewall rules, and rolling back bad changes. Also looks…
3 min read Cron What Is Cron Cron is a time‑based scheduling system used on Unix-like operating systems. It enables automated execution of recurring tasks at fixed times or intervals. Many system…
4 min read Domains in IT-Systems What Is a Domain A domain is a group of computers and users sharing the same login system. On a company network, your username works on any computer…
Tutorials · 15 min read Nextcloud vs OwnCloud vs Filecloud – Which One To Use In 2026 Nextcloud vs OwnCloud vs FileCloud: Discover which self-hosted platform offers the best security, pricing, and features for you.
Tutorials · 8 min read How to Update Your Self-Hosted n8n Instance on Contabo Keep your self-hosted n8n instance current with this step-by-step update guide. Learn how to safely pull the latest version, restart containers, and verify everything works – all in…
3 min read Nextcloud WebDAV What Is Nextcloud WebDAV Nextcloud WebDAV is a core protocol that enables direct file access and synchronization between Nextcloud Server and client devices. It allows users to manage,…
4 min read WireGuard Protocol What is the WireGuard Protocol? The WireGuard protocol is a modern VPN protocol designed for secure, fast, and efficient network communication. It creates encrypted tunnels between devices, allowing…
3 min read Mail Antivirus – ClamAV What is Mail Antivirus Mail antivirus software plays an important role in modern email security. It scans incoming and outgoing messages to detect malware, phishing links, and malicious…
3 min read WireGuard VPN What is WireGuard? WireGuard is a modern open-source VPN protocol that provides secure and efficient network connections. It creates encrypted tunnels between devices, ensuring data privacy and protection…