![]() ![]() Transport Layer Security (abbreviated as TLS) is a protocol designed to provide cryptographic security for communications over a computer network, be it between machines in your local home network, or between your computer and a server on the internet. Note: I do not claim to be an expert in TLS, and am only sharing the limited knowledge I have on the topic so if you're truly interested, do read up on your own accord. ![]() ![]() Some backstoryīefore we dive into the depths of DNS-over-TLS hell, to help us understand the problem better, let us run through a little background on TLS Certificates, trust chains and what happened so far in the past 6 years since the advent of Let's Encrypt. ![]() Today, I decided to it give it another go to deep dive into the problem and it was then that I finally found the issue the expired Root Certificate. All this time, I've had many sleepless nights pondering why it didn't work as I'm the kind of person that cannot rest without getting to the root cause of a problem. This coincided with the time I decided to wipe my cluster clean and start over, so I figured that it was probably a misconfiguration on my part.įast forward to yesterday, 30 days later, I still haven't managed to find out why my DNS over TLS is not working. However, that changed recently when it just stopped working and all it showed me was Couldn't connect in my Android device when I entered my DNS server's hostname in the Private DNS provider hostname field. This is especially important for me as I have ADHD, and ads are a major source of distraction. I've had a peaceful 3 years of running the DNS server with zero issues, browsing the internet without fear of being spammed by disruptive ads. I run a DNS over TLS server with Adguard Home to enable DNS-level ad-blocking on the go on my Android device via the Private DNS setting. ![]()
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