diff --git a/ekman/c0/default.nix b/ekman/c0/default.nix
index 92deaab..f1a3b48 100644
--- a/ekman/c0/default.nix
+++ b/ekman/c0/default.nix
@@ -11,7 +11,6 @@ let
 
   compute = {
     deployment.tags = [ "compute" "c0" ];
-
   };
 
   mkCompute = host:
@@ -39,8 +38,8 @@ let
           name = host.name;
           address = host.address;
         };
-        os.externalInterface = "enp33s0f0np0";
-        hpc.compute = true;
+        os.externalInterface = host.iface;
+        hpc.computeNode = true;
         hpc.knem = true;
         # k8s = { inherit etcdCluster; };
       };
@@ -54,7 +53,7 @@ let
       networking = {
         hostName = host.name;
         useDHCP = false;
-        interfaces.enp33s0f0np0 = {
+        interfaces."${host.iface}" = {
           useDHCP = false;
           ipv4.addresses = [ {
             address = host.address;
diff --git a/ekman/c0x/hardware-configuration.d/c0-17.nix b/ekman/c0/hardware-configuration.d/c0-17.nix
similarity index 100%
rename from ekman/c0x/hardware-configuration.d/c0-17.nix
rename to ekman/c0/hardware-configuration.d/c0-17.nix
diff --git a/ekman/c0x/hardware-configuration.d/c0-18.nix b/ekman/c0/hardware-configuration.d/c0-18.nix
similarity index 100%
rename from ekman/c0x/hardware-configuration.d/c0-18.nix
rename to ekman/c0/hardware-configuration.d/c0-18.nix
diff --git a/ekman/c0/nodes.nix b/ekman/c0/nodes.nix
index 44cc1bc..2d6817f 100644
--- a/ekman/c0/nodes.nix
+++ b/ekman/c0/nodes.nix
@@ -1,9 +1,10 @@
 with builtins;
 let
-  nodes = genList (n: n + 1) 16; in
+  nodes = genList (n: n + 1) 18; in
 map (n: (
   rec {
     idx = 100 + n;
+    iface = if n > 16 then "enp33s0f3np3" else "enp33s0f0np0";
     name = "c0-${toString n}";
     address = "10.255.241.${toString idx}";
     ipoib = "10.255.243.${toString idx}";
diff --git a/ekman/c0x/ssh_host_key.d/c0-17.pub b/ekman/c0/ssh_host_key.d/c0-17.pub
similarity index 100%
rename from ekman/c0x/ssh_host_key.d/c0-17.pub
rename to ekman/c0/ssh_host_key.d/c0-17.pub
diff --git a/ekman/c0x/ssh_host_key.d/c0-18.pub b/ekman/c0/ssh_host_key.d/c0-18.pub
similarity index 100%
rename from ekman/c0x/ssh_host_key.d/c0-18.pub
rename to ekman/c0/ssh_host_key.d/c0-18.pub
diff --git a/ekman/c0x/connauthfile b/ekman/c0x/connauthfile
deleted file mode 100644
index 37cd965..0000000
--- a/ekman/c0x/connauthfile
+++ /dev/null
@@ -1 +0,0 @@
-ä·q‹u
\ No newline at end of file
diff --git a/ekman/c0x/default.nix b/ekman/c0x/default.nix
deleted file mode 100644
index fb345ac..0000000
--- a/ekman/c0x/default.nix
+++ /dev/null
@@ -1,88 +0,0 @@
-{ pkgs ? import <nixpkgs> {} }:
-let
-  # Pin the deployment package-set to a specific version of nixpkgs
-  # pkgs = import (builtins.fetchTarball {
-  #   url = "https://github.com/NixOS/nixpkgs/archive/e6377ff35544226392b49fa2cf05590f9f0c4b43.tar.gz";
-  #   sha256 = "1fra9wwy5gvj5ibayqkzqpwdf715bggc0qbmrfch4fghwvl5m70l";
-  # }) {};
-  # pkgs = import <nixpkgs> {};
-
-  nodes = import ./nodes.nix;
-
-  compute = {
-    deployment.tags = [ "compute" "c0" ];
-  };
-
-  mkCompute = host:
-  let
-    hw = ./hardware-configuration.d + "/${host.name}.nix";
-  in {
-    "${host.name}" = {
-      cluster = {
-        compute = true;
-        k8sNode = true;
-        mounts = {
-          rdma.enable = true;
-          automount.enable = true;
-          users = true;
-          opt = true;
-          work = true;
-          data = false;
-          backup = false;
-          ceph = false;
-        };
-      };
-
-      features = {
-        host = {
-          name = host.name;
-          address = host.address;
-        };
-        os.externalInterface = "enp33s0f0np0";
-        hpc.compute = true;
-        hpc.knem = true;
-        # k8s = { inherit etcdCluster; };
-      };
-
-      deployment.targetHost = host.address;
-
-      # services.udev.extraRules = ''
-      #   KERNEL=="ibp1s0", SUBSYSTEM=="net", ATTR{create_child}:="0x7666"
-      # '';
-
-      networking = {
-        hostName = host.name;
-        useDHCP = false;
-        interfaces.enp33s0f3np3 = {
-          useDHCP = false;
-          ipv4.addresses = [ {
-            address = host.address;
-            prefixLength = 24;
-          } ];
-          ipv4.routes = [ {
-            address = "10.255.242.0";
-            prefixLength = 24;
-            via = "10.255.241.100";
-          } ];
-
-        };
-        # interfaces."ibp1s0.7666" = {
-        interfaces."ibp1s0" = {
-          useDHCP = false;
-          ipv4.addresses = [ {
-            address = host.ipoib;
-            prefixLength = 24;
-          } ];
-        };
-      };
-      imports = [
-          hw
-          ../default.nix
-          ../mounts.nix
-          # ./kernel.nix
-      ];
-    }
-    // compute;
-};
-in builtins.foldl' (a: n: a // mkCompute n) {} nodes
-
diff --git a/ekman/c0x/kernel.nix b/ekman/c0x/kernel.nix
deleted file mode 100644
index 17b55e4..0000000
--- a/ekman/c0x/kernel.nix
+++ /dev/null
@@ -1,48 +0,0 @@
-{pkgs, lib, ...}:
-let
-  kernel = pkgs.linuxPackages.kernel;
-  i40e =
-    pkgs.stdenv.mkDerivation rec {
-      name = "i40e-${version}-${kernel.version}";
-      version = "2.13.10";
-
-      src = pkgs.fetchFromGitHub {
-        owner = "dmarion";
-        repo = "i40e";
-        rev = "7228a7c3b362c3170baa2f9a9c6870a900e78dbd";
-        sha256 = "087kvq9wrc1iw6vig8cqcx7cb6346wx8qxzb85c3n8638vq1vrxr";
-      };
-
-      hardeningDisable = [ "pic" ];
-
-      configurePhase = ''
-        cd src
-        kernel_version=${kernel.modDirVersion}
-        sed -i -e 's|/lib/modules|${kernel.dev}/lib/modules|' Makefile
-        sed -i -e 's|/lib/modules|${kernel.dev}/lib/modules|' common.mk
-        export makeFlags="BUILD_KERNEL=$kernel_version"
-      '';
-
-      installPhase = ''
-        install -v -D -m 644 i40e.ko "$out/lib/modules/$kernel_version/kernel/drivers/net/i40e/i40e2.ko"
-      '';
-
-      dontStrip = true;
-
-      enableParallelBuilding = true;
-
-      meta = {
-        description = "Linux kernel drivers for Intel Ethernet adapters and LOMs (LAN On Motherboard)";
-        homepage = https://github.com/dmarion/i40e;
-        license = lib.licenses.gpl2;
-      };
-    };
-in
-{
-  # i40e2 = i40e;
-  boot.kernelPackages = pkgs.linuxKernel.packages.linux_5_10;
-  # overlay = self: super: {
-    # linuxPackages_5_4 = super.linuxPackages_5_4 // { inherit i40e; };
-  # };
-}
-
diff --git a/ekman/c0x/nodes.nix b/ekman/c0x/nodes.nix
deleted file mode 100644
index fc6f251..0000000
--- a/ekman/c0x/nodes.nix
+++ /dev/null
@@ -1,11 +0,0 @@
-with builtins;
-let
-  nodes = genList (n: n + 17) 2; in
-map (n: (
-  rec {
-    idx = 100 + n;
-    name = "c0-${toString n}";
-    address = "10.255.241.${toString idx}";
-    ipoib = "10.255.243.${toString idx}";
-    pubkey = ./. +  "/ssh_host_key.d/c0-${toString n}.pub";
-  })) nodes
diff --git a/ekman/c1/default.nix b/ekman/c1/default.nix
index 051eaa2..e1a7239 100644
--- a/ekman/c1/default.nix
+++ b/ekman/c1/default.nix
@@ -39,7 +39,7 @@ let
           address = host.address;
         };
         os.externalInterface = "eno33np0";
-        hpc.compute = true;
+        hpc.computeNode = true;
         # k8s = { inherit etcdCluster; };
       };
 
diff --git a/ekman/default.nix b/ekman/default.nix
index 9666deb..4408a40 100644
--- a/ekman/default.nix
+++ b/ekman/default.nix
@@ -100,6 +100,7 @@ let
     };
 
     networking = {
+      useDHCP = false;
       domain = mkDefault "cluster.local";
       defaultGateway = mkDefault "10.255.241.1";
       nameservers = mkDefault [ "8.8.8.8" ];
@@ -144,12 +145,13 @@ let
     features.hpc.slurm = {
         enable = true;
         client = true;
-        # clusterName = "ekman";
-        mungeKey = ./munge.key;
-        # jwtKey = ./jwt_hs256.key;
-        mungeUid = mkDefault 996; # hack
-        # pkey = "0x7666";
+        clusterName = "ekman";
         controlMachine = "ekman-manage";
+        dbdHost = "10.255.241.15";
+        mungeKey = ./munge.key;
+        jwtKey = ./jwt_hs256.key;
+        slurmKey = ./slurm.key;
+        # pkey = "0x7666";
         mailDomain = "oceanbox.io";
         nodeName = [
           "c0-[1-18] Sockets=2 CoresPerSocket=64 ThreadsPerCore=1 RealMemory=256000 TmpDisk=500000 State=UNKNOWN"
diff --git a/ekman/fs-backup/default.nix b/ekman/fs-backup/default.nix
index e5a2428..f4f9686 100644
--- a/ekman/fs-backup/default.nix
+++ b/ekman/fs-backup/default.nix
@@ -69,7 +69,6 @@ in {
       };
     };
 
-    features.hpc.slurm.mungeUid = 991;
     features.mft.enable = lib.mkForce true;
 
     features = {
diff --git a/ekman/fs-work/default.nix b/ekman/fs-work/default.nix
index 147b6ae..168ddbb 100644
--- a/ekman/fs-work/default.nix
+++ b/ekman/fs-work/default.nix
@@ -46,8 +46,6 @@ in {
       };
     };
 
-    features.hpc.slurm.mungeUid = 994;
-
     features = {
       host = {
         inherit address;
diff --git a/ekman/hive.nix b/ekman/hive.nix
index d53db0c..0d6b225 100644
--- a/ekman/hive.nix
+++ b/ekman/hive.nix
@@ -17,9 +17,8 @@ let
 
   login = import ./login { inherit pkgs; };
   c0 = import ./c0 { inherit pkgs; };
-  c0x = import ./c0x { inherit pkgs; };
   c1 = import ./c1 { inherit pkgs; };
   fs-work = import ./fs-work { inherit pkgs; };
   fs-backup = import ./fs-backup { inherit pkgs; };
 in
-    { inherit ekman-manage; frontend = ekman-manage; } // login // c0 // c0x // c1 // fs-work // fs-backup
+    { inherit ekman-manage; frontend = ekman-manage; } // login // c0 // c1 // fs-work // fs-backup
diff --git a/ekman/login/default.nix b/ekman/login/default.nix
index 084e836..a157046 100644
--- a/ekman/login/default.nix
+++ b/ekman/login/default.nix
@@ -51,8 +51,8 @@ in
       hpc = {
         slurm.server = false;
         slurm.slurmrestd = false;
-        manage = false;
-        login = true;
+        manageNode = false;
+        loginNode = true;
         knem = false;
       };
 
diff --git a/ekman/manage/default.nix b/ekman/manage/default.nix
index 886b1ce..cea20d4 100644
--- a/ekman/manage/default.nix
+++ b/ekman/manage/default.nix
@@ -86,9 +86,9 @@ in {
 
       hpc = {
         slurm.server = true;
-        slurm.slurmrestd = false;
-        slurm.mungeUid = 996;
-        manage = true;
+        slurm.slurmrestd = true;
+        slurm.dbdServer = false;
+        manageNode = true;
       };
 
       k8s = {
@@ -283,6 +283,18 @@ in {
         '';
     };
 
+    services.dnsmasq.enable = true;
+    services.dnsmasq.settings = {
+      domain = [ "cluster.local" ];
+      server = [
+        "/obx.hs/100.100.100.100" # headscale dns
+      ];
+      address = [
+        "/slurmctld.cluster.local/127.0.0.1"
+      ];
+      srv-host = "_slurmctld._tcp.cluster.local,slurmctld.cluster.local,6817,0,5";
+    };
+
     # ssh-rsa is deprecated, but putty/winscp users use it
     services.openssh.extraConfig = ''
       # pubkeyacceptedalgorithms ssh-rsa,ssh-ed25519-cert-v01@openssh.com,ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,sk-ssh-ed25519-cert-v01@openssh.com,sk-ecdsa-sha2-nistp256-cert-v01@openssh.com,rsa-sha2-512-cert-v01@openssh.com,rsa-sha2-256-cert-v01@openssh.com,ssh-ed25519,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,sk-ssh-ed25519@openssh.com,sk-ecdsa-sha2-nistp256@openssh.com,rsa-sha2-512,rsa-sha2-256
@@ -323,11 +335,25 @@ in {
     useRoutingFeatures = "both"; # for exit-node usage
     extraUpFlags = [
       "--login-server=https://headscale.svc.oceanbox.io"
-      "--accept-dns=false"
+      "--accept-dns=true" # see dnsmasq
+      "--accept-routes=true"
       "--advertise-exit-node"
       "--advertise-routes=10.255.241.0/24"
     ];
   };
+  services.networkd-dispatcher = {
+    enable = true;
+    rules = {
+      "tailscale-router" = {
+        onState = [ "routable" ];
+        script = ''
+        #!${pkgs.runtimeShell}
+        ${pkgs.ethtool}/bin/ethtool -K enp65s0np0 rx-udp-gro-forwarding on rx-gro-list off
+        exit 0
+        '';
+      };
+    };
+  };
 
   imports = [
       ./hardware-configuration.nix
diff --git a/rossby/default.nix b/rossby/default.nix
index 43083cb..c423359 100644
--- a/rossby/default.nix
+++ b/rossby/default.nix
@@ -94,7 +94,7 @@ let
       };
       cachix.enable = false;
       monitoring.nodeExporter.enable = false;
-      mft.enable = true; # Mellanox MFT
+      mft.enable = false; # Mellanox MFT
     };
 
     networking = {
@@ -289,6 +289,18 @@ let
             permissions = "u+rs,g+rx,o+rx";
         };
     };
+
+    # Use nvd to get package diff before apply
+    system.activationScripts.system-diff = {
+     supportsDryActivation = true; # safe: only outputs to stdout
+     text = ''
+       export PATH="${pkgs.lib.makeBinPath [ pkgs.nixVersions.latest ]}:$PATH"
+       if [ -e /run/current-system ]; then
+         ${pkgs.lib.getExe pkgs.nvd} diff '/run/current-system' "$systemConfig" || true
+       fi
+     '';
+    };
+
   };
 
   openssh-shosts = pkgs.openssh.overrideAttrs (attrs: {
diff --git a/rossby/manage/default.nix b/rossby/manage/default.nix
index c515620..4409321 100644
--- a/rossby/manage/default.nix
+++ b/rossby/manage/default.nix
@@ -205,25 +205,6 @@ in {
       # secret-key-files = /etc/nix/ekman.key
     '';
 
-    programs.msmtp = {
-      enable = true;
-      accounts = {
-        default = {
-          auth = false;
-          tls = false;
-          tls_starttls = false;
-          port = 24;
-          from = "rossby@oceanbox.io";
-          host = "smtpgw.itpartner.no";
-          # user = "utvikling";
-          # password = "S0m3rp0m@de#21!";
-        };
-      };
-      defaults = {
-        aliases = "/etc/aliases";
-      };
-    };
-
     services.prometheus.alertmanager.configuration.global = {
         smtp_smarthost = "smtpgw.itpartner.no";
         # smtp_auth_username = "utvikling";
@@ -278,17 +259,6 @@ in {
       srv-host = "_slurmctld._tcp.cluster.local,slurmctld.cluster.local,6817,0,5";
     };
 
-    # Use nvd to get package diff before apply
-    system.activationScripts.system-diff = {
-     supportsDryActivation = true; # safe: only outputs to stdout
-     text = ''
-       export PATH="${pkgs.lib.makeBinPath [ pkgs.nixVersions.latest ]}:$PATH"
-       if [ -e /run/current-system ]; then
-         ${pkgs.lib.getExe pkgs.nvd} diff '/run/current-system' "$systemConfig" || true
-       fi
-     '';
-    };
-
     # ssh-rsa is deprecated, but putty/winscp users use it
     services.openssh.extraConfig = ''
       # pubkeyacceptedalgorithms ssh-rsa,ssh-ed25519-cert-v01@openssh.com,ecdsa-sha2-nistp256-cert-v01@openssh.com,ecdsa-sha2-nistp384-cert-v01@openssh.com,ecdsa-sha2-nistp521-cert-v01@openssh.com,sk-ssh-ed25519-cert-v01@openssh.com,sk-ecdsa-sha2-nistp256-cert-v01@openssh.com,rsa-sha2-512-cert-v01@openssh.com,rsa-sha2-256-cert-v01@openssh.com,ssh-ed25519,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,sk-ssh-ed25519@openssh.com,sk-ecdsa-sha2-nistp256@openssh.com,rsa-sha2-512,rsa-sha2-256