Blog – Tips and tricks around software & co.

This blog is a collection of all kinds of tips, tricks and alike. Content for beginners as well as for tech-savvy people can be found here, from software like browsers to server administration until hardware.

Firefox: Disable feedback / heartbeat system

Posted on April 6, 2015, 17:10May 19, 2025, 10:22

In Firefox 37 Mozilla implemented a feedback system called “heartbeat”, which should help to build a better browser.

OCSP stapling with certificate server behind CloudFlare

Posted on March 1, 2015, 17:22May 19, 2025, 10:22

OCSP stapling provides the ability for server administrators to declare their certificates as valid without sending request to a certificate hoster of the issuer. Unfortunately there are some traps in creating an OCSP responder, espacially it is protected by CloudFlare.