/etc/network/interfaces is gone in 18.04 and netplan is what reads the configuration now, which is a surprise best encountered before the reboot rather than after it. netplan try…
Apache, Nginx, PHP, MySQL, Redis, Beanstalkd and a mail catcher, on a laptop. Onboarding measured in minutes rather than days, and what it costs to run.
A cron job that fails emails root, which goes nowhere on a modern server, so the standard arrangement is a job whose failures are invisible. Persistent=true runs a…
The journal holds everything from every unit, which makes it useless without filters and extremely good with two of them. –since accepts natural language, which is the part…
A named volume is initialised from the image, so it inherits ownership from whatever the image had. A bind mount is the host’s directory with the host’s ownership,…
Managing authorized_keys across thirty servers means a configuration management run to add a colleague and another to remove one, and the removal is the one that gets forgotten.…