today's howtos

posted by Roy Schestowitz on Feb 11, 2023

• Check SSL Certificate Expiry Date from Certificate File

  How to check SSL certificate expiration date command line? In this guide, you will learn how to check SSL certificate expiry date from the certificate file itself. SSL (Secure Socket Layer)/TLS (Transport Layer Security) certificates, are used to encrypt data exchanged between a website and its users.

• Day 100: it's over, or is it!?

  OMG, I did it, day 100! 4 months and 16 days ago I published the first post and then I wrote another post every workday for 138 days straight without missing a single day. In this final post, I want to do a quick recap and give an outlook for what's coming next.

• Day 99: native nesting

  Nesting in CSS is coming soon! For me personally not the killer feature, at least compared to cascade layers or container queries, but still exciting. Let’s see how it works.

• Dynamic Viewports with CSS

  Lucky for us there exists an awesome new-ish CSS API called dynamic viewport-percentage units: dvh & dvw. They are defined as follows: [...]

• Things that systemd-resolved is not for (as of systemd 251)

  This leaves a lot of things that systemd-resolved is not for. Here is my current list, as of Fedora's systemd 250 and 251.