How to Enable Automatic Security Updates on Ubuntu
How to set up unattended-upgrades on Ubuntu: install it, limit it to security patches, reboot automatically at 3 AM and …
Linux 6 posts
Information security in plain English: scams, hardening and privacy — plus retrogaming, games and geek culture.
How to set up the UFW firewall on Ubuntu in 5 steps
How to set up UFW on Ubuntu: default policy, allowing SSH without locking yourself out, rate-limiting brute force, …
SSH Hardening on Linux: 7 Essential Settings to Secure Remote Access
SSH exposed to the internet is a constant target of brute-force attacks. Here are 7 essential hardening settings to …
fail2ban: how to block brute force attacks on Linux step by step
Install and configure fail2ban on Ubuntu/Debian to automatically ban IPs that brute-force SSH, with ready-to-use …
Crontab on Linux: how to schedule tasks automatically
The 5-field crontab syntax, practical backup and log-cleanup examples, the PATH mistakes that break the job, and when to …
SSH hardening: 5 settings that close 95% of the vectors
Weak password + port 22 open = an invitation to brute force. Here are the exact sshd_config changes to lock down SSH on …