Monthly Archives: July 2017

Debian /boot old kernel images

So I was looking at yet another failed apt-get upgrade because /boot was full. After my initial whining on Twitter, I immediately received a hint towards /etc/apt/apt.conf.d/01autoremove-kernels, which gets generated from /etc/kernel/postinst.d/apt-auto-removal after the installation of new kernel images. The … Continue reading

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How expiration dates in the shadow file really work

tl;dr: Accounts expire as soon as UTC reaches the expiration date. In today‘s installment of my classic shame-inducing series “UNIX basics for UNIX professionals”, I want to talk about account (and password) expiration in /etc/shadow on Linux. The expiration time … Continue reading

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