Why unattended-upgrades does nothing on Debian
Debian ships unattended-upgrades switched off. Enable it properly, read Origins-Pattern, check the apt-daily timers, and prove it patches itself.
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How Debian votes: the General Resolution
Debian policy is set by a ranked ballot of about a thousand developers. How a General Resolution is proposed, seconded, counted, and reaches your server.
What reproducible builds actually prove
A checksum proves you got the file the publisher sent. A reproducible build proves that file matches the source you can read. Two different claims.
Check your server for known CVEs
List every known CVE affecting the packages on your Debian or Ubuntu VPS with debsecan and debvulns, then alert only on the ones that are worth a reboot.
Debian stable, testing or unstable for servers
How Debian's suites feed each other, what the security team promises for each, why testing is the weak spot for a server, and how to pin one package.
Why Debian and Ubuntu split
Ubuntu began as a snapshot of Debian unstable in 2004. What 22 years of shared packaging and quiet divergence mean when you pick a server OS.
Which Linux OS to pick for your VPS
Ubuntu, Debian, Rocky, AlmaLinux, CentOS Stream or Fedora: choose by support lifetime, package age, RHEL compatibility and whose docs you follow.
A history of Linux distributions
Almost every Linux distribution descends from Slackware, Debian or Red Hat. Trace the family tree, the package managers, and what your VPS images inherited.