diff --git a/nixos/default.nix b/nixos/default.nix
index 8bb663c..5ddad00 100644
--- a/nixos/default.nix
+++ b/nixos/default.nix
@@ -15,6 +15,9 @@
 
 	services.openssh = {
 		enable = true;
+		passwordAuthentication = false;
+		challengeResponseAuthentication = false;
+		permitRootLogin = "without-password";
 		openFirewall = true;
 		ports = [ 1512 ];
 		startWhenNeeded = true;