How to Install djbdns on Windows 10

Djbdns is a DNS server software that provides high security, reliability, and simplicity of configuration. It was developed by Daniel J. Bernstein in response to the security issues of traditional DNS servers. In this tutorial, we will guide you on how to install djbdns on Windows 10.

Prerequisites

A Windows 10 machine
An installation of the Cygwin environment
Administrator access to the Windows 10 machine

Installation Steps

Download the latest version of djbdns from the official website: http://cr.yp.to/djbdns.html
Extract the archive using a program like 7-Zip or WinZip.
Open the Cygwin terminal by typing "Cygwin" in the Windows start menu.
Navigate to the directory where you extracted the djbdns archive, for example:
```
cd /cygdrive/c/Users/{your-username}/Downloads/djbdns-1.05
```
Run the following command to build and install djbdns:
```
make setup check
```
This process will take a few minutes to complete, and it will create a directory called "djbdns" in the Cygwin root directory.
Set the environment variable for the djbdns installation. In the Cygwin terminal, run:
```
export PATH=/usr/local/djb/bin:$PATH
```

Create a configuration file for djbdns:

cd /usr/local/djb/
sudo mkdir -p /etc/djbdns/
sudo touch /etc/djbdns/root/ns
sudo chmod 777 /etc/djbdns/root/ns

Configure a DNS root server by editing the "ns" file. Add the IP address of your server in the following format:
```
IP_Address:ns:domain.tld
```
To start the djbdns service, execute the command:
```
sudo ./dnscache-run
```
This will start the dnscache service, which is part of djbdns.

Congratulations! You have successfully installed djbdns on your Windows 10 machine. You can now configure djbdns to serve DNS queries for your domains.