Hardening a new Linux server: the first-hour checklist
A practical guide to hardening a fresh Linux server: creating a non-root user, configuring SSH with keys, firewall, automatic updates, and fail2ban — with detailed examples.
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Blog & Learn
Category Security
Practical articles on hosting, servers, security, SEO and online business — in plain, useful language.
Ransomware prevention for businesses
With the rise of ransomware attacks, every business needs a defense strategy. In this article, we explore the three main layers of ransomware prevention with practical examples and real commands.
Read moreProtecting against brute-force attacks
A practical guide to dealing with brute force attacks: rate limiting with fail2ban, temporary account lockout, login log monitoring, and common implementation mistakes.
Read morePreventing SQL injection
Get to know SQL injection, the most common attack on databases. In this article, you will learn why parameterized queries are the only real solution and how to secure your website with practical examples in PHP and MySQL.
Read moreSSL certificate types: DV, OV and EV
In this article, we review the types of SSL certificates; the difference between DV, OV, and EV validation levels, the level of trust each provides, and which type is right for your website.
Read moreThe WordPress security checklist
With this WordPress security checklist, you'll close the most common entry points for attackers—from updates and passwords to firewalls and backups. Practical solutions with precise prioritization.
Read moreTwo-factor authentication: why and how
Two-factor authentication is no longer a choice, but a necessity. In this article, we compare SMS, app-based, and hardware key methods and explain which one is more suitable for you.
Read moreSSL and HTTPS: Why Every Website Needs It Today
The little padlock next to a site's address isn't just an icon; it's a sign of encryption, user trust, and even better rankings on Google. In this article, we'll see exactly what SSL does and why not having it is dangerous for your business.
Read moreWhat Is a VPN Server and How Does It Work? A Complete Technical Guide
What is a VPN server, what protocols does it use, and what are its enterprise applications? A technical guide to building a secure private network for businesses — from secure remote work to connecting branch offices.
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