diff --git a/configuration/common/backup.nix b/configuration/common/backup.nix
index 7cb500f..2cdf77a 100644
--- a/configuration/common/backup.nix
+++ b/configuration/common/backup.nix
@@ -4,8 +4,8 @@
 
   clerie.backup = {
     targets = {
-      cyan.serverName = "cyan.backup.clerie.de";
-      magenta.serverName = "magenta.backup.clerie.de";
+      cyan.serverUrl = "https://cyan.backup.clerie.de";
+      magenta.serverUrl = "https://magenta.backup.clerie.de";
     };
   };
 
diff --git a/hosts/nonat/configuration.nix b/hosts/nonat/configuration.nix
index 5bddcb6..47d7495 100644
--- a/hosts/nonat/configuration.nix
+++ b/hosts/nonat/configuration.nix
@@ -23,7 +23,6 @@
       { Gateway = "2001:638:904:ffca::1"; }
     ];
     linkConfig.RequiredForOnline = "routable";
-    ipv6AcceptRAConfig.DHCPv6Client = "no";
   };
   systemd.network.networks."10-nat-netz-mercury" = {
     matchConfig.Name = "ens19";
@@ -31,7 +30,6 @@
       "192.168.10.1/24"
     ];
     linkConfig.RequiredForOnline = "no";
-    ipv6AcceptRAConfig.DHCPv6Client = "no";
   };
 
   networking.nat = {
diff --git a/modules/backup/default.nix b/modules/backup/default.nix
index cea7ca9..9cc552d 100644
--- a/modules/backup/default.nix
+++ b/modules/backup/default.nix
@@ -64,7 +64,7 @@ let
       targetUsername = if targetOptions.username == null then config.networking.hostName else targetOptions.username;
     in {
       "clerie-backup/${jobName}-${targetName}/repo_password".source = jobPasswordFile;
-      "clerie-backup/${jobName}-${targetName}/repo_url".text = "https://${targetOptions.serverName}${repoPath}";
+      "clerie-backup/${jobName}-${targetName}/repo_url".text = "${targetOptions.serverUrl}${repoPath}";
       "clerie-backup/${jobName}-${targetName}/auth_username".text = targetUsername;
       "clerie-backup/${jobName}-${targetName}/auth_password".source = targetPasswordFile;
       "clerie-backup/${jobName}-${targetName}/files".text = concatStringsSep "\n" jobOptions.paths;
@@ -82,7 +82,7 @@ let
         type = with types; nullOr str;
         default = null;
       };
-      serverName = mkOption {
+      serverUrl = mkOption {
         type = types.str;
       };
     };