diff --git a/hosts/c1/configuration.nix b/hosts/c1/configuration.nix
index fad24ee..0d2cf29 100644
--- a/hosts/c1/configuration.nix
+++ b/hosts/c1/configuration.nix
@@ -10,6 +10,7 @@
       enable = true;
       serial = 1;
       ethLanName = "ens16f0";
+      ethRDMAName = "ens2f1np1";
     };
   };
   system.stateVersion = "25.05";
diff --git a/hosts/c2/configuration.nix b/hosts/c2/configuration.nix
index 10d081e..9c43f02 100644
--- a/hosts/c2/configuration.nix
+++ b/hosts/c2/configuration.nix
@@ -10,6 +10,7 @@
       enable = true;
       serial = 2;
       ethLanName = "ens16f0";
+      ethRDMAName = "ens2f1np1";
     };
   };
   system.stateVersion = "25.05";
diff --git a/modules/nasp/main.nix b/modules/nasp/main.nix
index 2b00fe2..25b2bf3 100644
--- a/modules/nasp/main.nix
+++ b/modules/nasp/main.nix
@@ -276,6 +276,28 @@ in
           };
         };
       };
+      systemd.timers."home2-sockets-clean" = {
+        wantedBy = [ "timers.target" ];
+        timerConfig = {
+          OnCalendar = "0:0:0";
+          Unit = "home2-sockets-clean.service";
+        };
+      };
+      systemd.services."home2-sockets-clean" = {
+        serviceConfig = {
+          Type = "simple";
+          User = "root";
+        };
+        script = ''
+          cd /home2/run
+          for i in ./*.sock; do
+            if ! socat -u OPEN:/dev/null UNIX-CONNECT:$i 1>/dev/null 2>&1; then
+              rm $i
+            fi
+          done
+        '';
+        path = [ pkgs.socat ];
+      };
     })
     # registry
     (lib.mkIf (registryCfg.enable) {
@@ -463,6 +485,7 @@ in
     (lib.mkIf (cCfg.enable) {
       networking.hostName = "c" + (builtins.toString cCfg.serial);
       networking.nameservers = [ "192.168.20.1" ];
+      zramSwap.enable = true;
       nasp.docker.enable = lib.mkDefault true;
       nasp.registry.enable = lib.mkDefault true;
       nasp.nginx.enable = lib.mkDefault true;
@@ -486,15 +509,16 @@ in
     (lib.mkIf (cCfg.enable && cCfg.ethRDMAName != "") {
       systemd.network.networks."10-eth-rdma" = {
         matchConfig.Name = cCfg.ethRDMAName;
-        address = [ "12.12.12.${builtins.toString (cCfg.serial + 100)}/24" ];
+        address = [ "10.10.10.${builtins.toString (cCfg.serial + 100)}/24" ];
         linkConfig.RequiredForOnline = "no";
       };
       networking.rxe = {
         enable = true;
         interfaces = [ "${cCfg.ethRDMAName}" ];
       };
+      environment.systemPackages = [ pkgs.rdma-core ];
       networking.firewall.extraInputRules = ''
-        ip saddr 12.12.12.0/24 accept
+        ip saddr 10.10.10.0/24 accept
       '';
     })
   ]);