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Category: Tekno Page 1 of 5

How to Setup DNS-Over-TLS (DoT)

This guide will help you reuse your setup for DNS-over-HTTPS (DoH) to add support for DNS-over-TLS (DoT). The best part ? You won’t need new tools after you’ve followed my previous guides: DNS-over-HTTPS or Pihole and DoH.


DNS-over-TLS (DoT) is different to DNS-over-HTTPS (DoH).

DoH is used in different application like DNScrypt, Intra, etc … In other words, there isn’t any OS implementation of it. You always need a separate app to use it.

DoT is used directly in Android 9 (Pie).

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How to Setup DNS-Over-HTTPS using Pihole


In my previous article/tutorial, I’ve explained how to setup your own DNS-over-HTTPS (DoH) server using Nginx, Certbot, and dns-over-https. In this article I’ll explain to you how to add Pi-Hole into the mix to block the unwanted advertising.


Pi-Hole is made of 2 components: a PHP web interface and a DNS server. Both are open-source. The web interface let you add blacklist, whitelist and configure the DNS server. The DNS server is the one doing the heavy lifting, responding to the queries according to its configuration generated by the interface.

The name comes from the lightness of the application, it can run without problem on a raspberry pi in your own network.

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How to setup your own DNS-Over-HTTPS (DoH) Server


Traditional DNS queries and responses are sent over UDP or TCP without encryption. This is vulnerable to eavesdropping and spoofing (including DNS-based Internet filtering). Responses from recursive resolvers to clients are the most vulnerable to undesired or malicious changes, while communications between recursive resolvers and authoritative name servers often incorporate additional protection. (Google)

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Implement Cloudflare DNS Over HTTP (DoH) on Pihole

Cloudflare Service

It is the 1st of April, 2018. The people have awoken, ready to discover the most cringeworthy April Fools day “jokes” from the usual tech giants. It looks like Cloudflare has decided to join in this year – “Secure, privacy focused, incredibly fast DNS? Who are they trying to fool?”

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How to add rc.local on Debian 9

On Debian 9, the traditional “rc.local” has been deprecated. For traditional Linux users and administrators, there is a way to get it back using SystemD. See the procedure below :

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