How to install Kerberos.io on nixOS Latest?

Kerberos.io is an intelligent video surveillance system, and in this tutorial, we will explain how to install it on nixOS Latest.

Prerequisites

A System Running nixOS Latest
A web server (ex: Nginx or Apache)

Step 1: Installing Nix

Before installing Kerberos.io, we need to install Nix, a package manager for nixOS.

Installing Nix

To install Nix, open a terminal and type the following command:

$ curl -L https://nixos.org/nix/install | sh

Step 2: Installing Kerberos.io

Updating the system configuration

We need to update the system configuration by adding the following lines to the /etc/nixos/configuration.nix file:

  # Kerberos.io 
  services.kerberosio.enable = true;
  services.kerberosio.port = 8888;

These lines will enable Kerberos.io and set its port to 8888.

Building the system

After making modifications to the configuration file, we need to build the system by running the following command:

$ sudo nixos-rebuild switch

Starting Kerberos.io

To start Kerberos.io, run the following command:

$ sudo systemctl start kerberosio.service

Enabling Kerberos.io to start on boot

To enable Kerberos.io to start automatically on boot, run the following command:

$ sudo systemctl enable kerberosio.service

Step 3: Configuring the Web Server

After installing Kerberos.io, we need to configure our web server (ex: Nginx or Apache) as a reverse proxy to Kerberos.io.

Installing Nginx

To install Nginx, open a terminal and type the following command:

$ sudo nix-env -i nginx

Configuring Nginx

After installing Nginx, we need to configure it as a reverse proxy to Kerberos.io. To do this, create a new server configuration file in the /etc/nginx/sites-available/ directory with the following content:

server {
    listen 80;
    server_name example.com;

    location / {
        proxy_pass http://127.0.0.1:8888/;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
    }

    access_log /var/log/nginx/example.com.access.log;
    error_log /var/log/nginx/example.com.error.log;
}

Don't forget to replace example.com with your own domain or IP address.

Enabling the new configuration

We need to enable the new configuration by creating a symlink in the /etc/nginx/sites-enabled/ directory with the following command:

$ sudo ln -s /etc/nginx/sites-available/example.com /etc/nginx/sites-enabled/

Restarting Nginx

After making changes to the Nginx configuration, we need to restart it with the following command:

$ sudo systemctl restart nginx.service

Conclusion

Now you have successfully installed and configured Kerberos.io on nixOS Latest. You can access the web interface by visiting your domain or IP address (ex: http://example.com).

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