it-systeme
christoph ender it operations · networking · software development
about
Hi there! These pages are intended to share notes and
experiences from my work as an IT freelancer – yes, you
can hire me – working in OPs, networking and development.
contact
latest blog entry: “postfix sni cert storage”
A few days ago I got a warning from my monitoring system indicating that some certificates for my postfix mail system would expire soon. This caught me a little bit by surprise, since this is a certificate issued and auto-renewed by Let's Encrypt and it has been working flaslessly so far for everyting else.