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content/posts/infecting-your-server-with-nixos.md

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+---
+title: "Infecting Your Server With Nixos"
+date: 2024-10-26T11:14:05+02:00
+draft: false
+---
+
+To infect your server with NixOS you need to run a non NixOS Linux distribution. 
+It works on some Linux distributions, you can check the list of supported 
+distributions [here](https://github.com/elitak/nixos-infect/). You can use a
+virtual machine or a dedicated machine (locally or using a cloud provider).
+
+## Step 1: Create SSH Keys
+
+First, you need to create SSH keys to access your server. To infect your machine
+you need to have root access using SSH Keys, it's not possible to infect a
+machine without SSH access because [nixos-infect](https://github.com/elitak/nixos-infect/) is not able to get your current
+password and set on the new operating system (NixOS).
+
+```bash
+ssh-keygen
+```
+
+You need to copy your public key to the server. You can do this by running the following command:
+
+```bash
+ssh-copy-id root@your-server-ip
+```
+
+If you are using a cloud provider, you can use the web interface to add your SSH key.
+
+To copy your public key to the server, you can also use the following command:
+
+```bash
+cat ~/.ssh/id_ed25519.pub | xclip # or pbcopy on macOS
+```
+
+Verify that you can access your server using SSH:
+
+```bash
+ssh root@your-server-ip
+```
+
+If you have more than one SSH key, you can specify the key to use with the `-i` flag:
+
+```bash
+ssh -i ~/.ssh/id_ed25519 root@your-server-ip
+```
+
+## Step 2: Infect Your Server
+
+Now that you have access to your server, you can infect it with NixOS. If you 
+are using a Virtual Machine or a dedicated machine, you can use the following
+command:
+
+```bash
+curl https://raw.githubusercontent.com/elitak/nixos-infect/master/nixos-infect | NIX_CHANNEL=nixos-23.05 bash -x
+```
+
+If you are using a cloud provider, you can use cloud-init/user data mechanism 
+interface to provide the script to infect your server. For example, on 
+DigitalOcean, you can use the following script:
+
+```bash 
+#cloud-config
+
+runcmd:
+  - curl https://raw.githubusercontent.com/elitak/nixos-infect/master/nixos-infect | PROVIDER=digitalocean NIX_CHANNEL=nixos-23.05 bash 2>&1 | tee /tmp/infect.log
+```
+
+You can check what command to use on your cloud provider 
+[here](https://github.com/elitak/nixos-infect/#hoster-notes).
+
+After a few minutes, your server will be infected with NixOS. 
+You can access and verify that it worked:
+
+```
+nix-shell -p freshfetch --command freshfetch
+            ::::.    ':::::     ::::'          root@nixos
+            ':::::    ':::::.  ::::'
+              :::::     '::::.:::::            OS: NixOS 23.05 (Stoat) x86_64
+        .......:::::..... ::::::::             Host: Droplet
+       ::::::::::::::::::. ::::::    ::::.     Kernel: Linux 6.1.69
+      ::::::::::::::::::::: :::::.  .::::'     Uptime: 36 minutes
+             .....           ::::' :::::'      Packages: 0
+            :::::            '::' :::::'       Shell: bash
+   ........:::::               ' :::::::::::.  Resolution: 1024x768
+  :::::::::::::                 :::::::::::::  CPU: DO-Regular (1) @ 1.9953100681305MHz
+   ::::::::::: ..              :::::           Board: DigitalOcean Droplet
+       .::::: .:::            :::::            Memory: 68MB / 473MB
+      .:::::  :::::          '''''    .....
+      :::::   ':::::.  ......:::::::::::::'
+       :::     ::::::. ':::::::::::::::::'
+              .:::::::: '::::::::::
+             .::::''::::.     '::::.
+            .::::'   ::::.     '::::.
+           .::::      ::::      '::::.
+```
+
+Congratulations! You have successfully infected your server with NixOS.