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A man swirling a torch in front of him forming a wall of fire.

UFW vs FirewallD

A look into the different strengths and weaknesses of Canonical’s Uncomplicated Firewall (UFW) vs Red Hat’s FirewallD.

A wall of numbered locked boxes.

Change the default SSH port in Fedora

Reduce brute-force password guessing and scripted attacks on your SSH service running on a Fedora Server by changing away from the default SSH port number.

A web server log with dozens of identical requests coming in at the exact same time. The log entries are for a file called “/robots.txt” and from a User-Agent called “AppleNewsBot”. A glowing Apple logo can be seen through the log file.

Attack of the AppleNewsBot

A bug in the Apple News crawler caused it to get stuck in a loop sending 100+ requests/second to websites with HTTPS certificates issued by Let’s Encrypt.

A Lenovo IdeaCentre Stick 300 sticking out of a ceiling-mounted projector.

Review of Lenovo IdeaCentre Stick 300

Lenovo’s contender to the stick-PC market runs Windows 10 but doesn’t even have enough storage space to perform upgrades. Linux may be the better option.