diff --git a/machines/newton/default.nix b/machines/newton/default.nix
index 0ad5186..2b1679f 100644
--- a/machines/newton/default.nix
+++ b/machines/newton/default.nix
@@ -50,6 +50,12 @@ in
     '';
   };
 
+  services.openssh.extraConfig = ''
+  HostCertificate /etc/ssh/ssh_host_ed25519_key-cert.pub
+  HostKey /etc/ssh/ssh_host_ed25519_key
+  TrustedUserCAKeys /etc/ssh/ssh_user_key.pub
+  MaxAuthTries 20
+  '';