Server security, explained simply
Practical guides for teams running their own servers without a dedicated security team.
How to secure a Linux server in 2026: the complete checklist
SSH access, firewall, updates, vulnerable versions, backups, monitoring: the points to check to secure a production Linux server.
Does a Linux server need an antivirus in 2026?
Does Linux need an antivirus? What an antivirus catches on a server, what it misses, and how to really protect a production server.
SSH brute-force attacks: how to detect and block them
Understand SSH brute-force attacks, read authentication logs and set up effective automatic IP banning.
CVEs and vulnerable dependencies: how to know if your application is exposed
Understand CVEs, check the versions of your system packages and npm, Python or PHP dependencies, and prioritize the updates that matter.
Server monitoring: what CPU, RAM and disk reveal about an intrusion
A crypto miner, data exfiltration or a compromised service leave traces in performance metrics. How to monitor CPU, memory and disk to detect an intrusion.
AI and cybersecurity: why small businesses must monitor their servers now
Artificial intelligence speeds up attacks as much as defense. What changes for small businesses and startups, and how to get organized without a security team.
Get server security alerts in Slack: the guide
Why send your servers' security alerts to Slack, how to create an incoming webhook and how to avoid noise.