Blog
Articles about self-hosting, security, DevOps, and how to get the most out of your VPS.
Initial Hardening Checklist for Fresh VPS Servers on Hetzner & OVH
Step-by-step checklist to secure a fresh Linux VPS: SSH keys, Fail2ban, UFW firewall, and automatic unattended security upgrades before going live.
How to Fix the Docker UFW Security Bypass on Ubuntu (iptables Flaw)
Running docker run -p 5432:5432 silently modifies iptables and bypasses your UFW firewall, exposing databases to the public internet. Here is how to fix it properly.
Lightweight Monitoring for €4/month VPS: Real RAM Benchmark
On modest 1-2 GB RAM servers (Hetzner, Scaleway, DO), Prometheus and Netdata devour up to 25% of your system memory. Here is a real RAM benchmark and native Rust alternative.
Lynis: Audit Your Linux VPS Security in Under 10 Minutes
How to use Lynis, the open-source security auditing tool, to detect weak configurations on your Linux server and prioritize what to fix first.
Unattended-Upgrades: Automatic Security Updates on Ubuntu and Debian Without Surprises
Configure automatic security updates on Ubuntu and Debian with unattended-upgrades to patch vulnerabilities without unexpected server reboots.
AIDE: How to Detect Unauthorized File Changes on Your Linux Server
Install and configure AIDE on Linux to detect unauthorized modifications to critical system binaries and files with cryptographic alerts.
Fail2ban vs CrowdSec vs PSAD: Which Should You Choose for Your VPS in 2026?
We compare the three most popular intrusion detection tools for Linux: local log parsing, crowdsourced threat intelligence, and port scan detection.
How to Configure 2FA / TOTP in SSH to Shield Access to Your VPS
Learn how to protect SSH access to your Linux server by adding a second factor of authentication (TOTP) with Google Authenticator or 1Password.
How to Restrict SSH Access in Linux Using AllowGroups and Dedicated Users
Practical guide to limiting SSH access to specific users using the AllowGroups directive in OpenSSH and applying the principle of least privilege.
Fail2ban vs SSH Keys: What Do You Really Need to Secure a VPS?
We analyze the differences between Fail2ban and exclusive SSH key authentication to protect your Linux server against brute-force attacks.
How to Automate PostgreSQL and MySQL Database Restoration Tests
Step-by-step guide to building an automated pipeline that downloads, imports, and validates your database backups inside an isolated Docker container.
How Much Does It Cost to Lose Your SaaS Data to a Corrupt Backup?
We analyze the financial, operational, and reputational impact of suffering data loss on your VPS server by failing to verify your backups beforehand.
Heroku vs Vercel vs Railway vs SecuryBlack: PaaS platforms comparison
We analyze the developer experience, costs, and limitations of Heroku, Vercel, Railway, and the self-hosted alternative with SecuryBlack.
How to Self-Host Supabase on Your Own VPS with Docker
Learn step-by-step how to install and self-host Supabase on your own VPS server using Docker Compose to bypass cloud limits.
Vercel alternatives: how to set up automatic Git deploys on a Hetzner VPS
Learn how to bypass Vercel limits and build billing by configuring automatic Git-push deployments on a cheap Hetzner VPS using SecuryBlack.
The backup myth: why your server backups are failing in silence
Having a scheduled backup on your VPS does not guarantee that you can restore your data. Learn the importance of automated restore verification.
Coolify vs Dokploy: where SecuryBlack fits in your VPS stack
Choose a deployment panel for your applications, then decide how to monitor the server and audit its security. SecuryBlack can complement that stack.
Hardening guide: how to secure a new VPS on Hetzner or DigitalOcean
Learn the essential hardening steps to protect your virtual server (VPS) from external attacks by configuring SSH keys, UFW firewall, and Fail2ban.
Uptime Robot vs Uptime Kuma: Which to Choose in 2026 (Hosted vs Self-Hosted)
Honest comparison between Uptime Robot and Uptime Kuma: pricing, self-hosting pros & cons, features, features, use cases, and which to choose according to your needs in 2026.
SecuryBlack vs Healthchecks.io: Which to Use to Monitor Your Cronjobs
Healthchecks.io vs SecuryBlack: compare features, pricing, and integrations to find the best heartbeat and cronjob monitoring tool for your stack.
How to Know If Your Cronjobs Are Failing Silently
Learn how to detect, diagnose, and fix silent cronjob failures on your Linux server before they impact your production infrastructure.
Digital Security Checklist for SMEs
A practical checklist with 20 essential digital security measures every SME should implement to protect their business and customer data.
Why Homelabbers Need Their Own Security Stack
You manage your own server, backups, and apps. Discover why homelabbers need dedicated monitoring to ensure everything runs smoothly 24/7.
SecuryBlack vs Have I Been Pwned: Which One to Choose?
Detailed comparison between SecuryBlack and Have I Been Pwned. Discover the differences, advantages, and which one best suits your needs.
How to Know If Your Email Has Been Compromised (and What to Do)
Hundreds of millions of credentials leak every year. Your email may be circulating in breach databases without you knowing — here's how to check.
GDPR and Data Breaches: What Obligations Does Your Company Have?
Guide on GDPR obligations when your company suffers a data breach: notification deadlines, sanctions, and steps to follow.
Heartbeats: How to Know Your Backups Actually Run
A cronjob that fails silently is worse than having no backup. Heartbeats alert you when your backup script stops running. Here's how they work.
What to Do If Your Data Appears in a Leak
Step-by-step guide on how to act if you discover that your email or personal data has been leaked in a security breach.
What Is a Data Breach and How Does It Affect You?
Discover what a data breach is, how they occur, what risks they involve for you, and what you can do to protect yourself effectively.
What Is the Dark Web and Why Should You Worry?
Discover what the dark web is, how it works, what type of stolen data is sold there, and why your credentials may be there without you knowing.
What Is Credential Stuffing and How Does It Affect Your Business?
Discover what credential stuffing is, why it's so dangerous for businesses and individuals, and how to protect yourself from this automated attack.
What Data of Mine Is Circulating on the Internet Without Me Knowing?
Discover what personal information about you may be exposed on the internet, how it leaks, and what you can do to reduce your digital footprint.
How to Protect Your Company's Email Against Leaks
Guide for SMEs and companies on how to protect corporate email accounts against data breaches and targeted attacks.
Why Your Company Needs a Breach Scanner (Even If It's Small)
Discover why SMEs are the favorite target of cybercriminals and how a breach scanner can protect your business.
Phishing: What It Is, How to Detect It, and How to Protect Yourself
Complete guide on phishing: what it is, the most common types, how to identify a fraudulent email, and the best practices to protect yourself.
SecuryBlack News: What's Coming in 2026
Discover the new features we're developing at SecuryBlack for 2026: Network Scanner, Uptime Monitor, Heartbeat, and more.
Breach Monitoring: What Is It and Why Do You Need It?
Discover what breach monitoring is, how it works, and why it's essential to protect your digital identity continuously.
The 10 Biggest Data Breaches in History
A review of the largest data breaches of all time: Yahoo, LinkedIn, Facebook, and more. Discover what data was leaked and what lessons they left.
Complete Guide to Two-Factor Authentication (2FA)
Everything you need to know about two-factor authentication: what it is, how to enable it, what methods exist, and why it's essential for your security.
Cybersecurity Glossary: All the Terms You Need to Know
A complete cybersecurity dictionary covering brute-force attacks, two-factor authentication, and every key term in between, explained from A to Z.
Is It Safe to Save Passwords in the Browser?
Analysis of the pros and cons of saving passwords in Chrome, Firefox, or Safari. Discover if it's a safe practice or if you should use alternatives.
How to Know If My Email Has Been Hacked (2026 Guide)
Learn how to check if your email address has appeared in a data leak and what steps to follow to protect yourself.
How the k-Anonymity Model Works and Why It Protects Your Privacy
Accessible technical explanation of the k-Anonymity model: how it allows checking if your email has been leaked without revealing your email to the server.
How to Create Secure Passwords You Can Remember
Learn techniques for creating strong and easy-to-remember passwords, and discover why a password manager is your best ally.