ppp freeze hotfix

hosts/carbon/configuration.nix

@@ -141,6 +141,16 @@
     };
   };
 
+  # ppp session freezes when running long, so we just restart it regularly
+  # (this is an industry standard, looking at you Fritz!Box!)
+  systemd.services."pppd-ntvdsl-restart" = {
+    path = [ "systemctl" ];
+    script = ''
+      systemctl restart pppd-ntvdsl.service
+    '';
+    startAt = "*-*-* 03:00:00";
+  };
+
 
   # Routing tables
   # Table: 10000