1 files changed, 6 insertions, 0 deletions

diff --git a/ymir.nix b/ymir.nix
index 53dfd7c5..a4bef801 100644
--- a/ymir.nix
+++ b/ymir.nix
@@ -17,6 +17,12 @@ in {
     device = "/dev/vda";
   };
 
+  boot.kernel.sysctl = {
+    "net.ipv4.tcp_keepalive_time" = 60;
+    "net.ipv4.tcp_keepalive_intvl" = 10;
+    "net.ipv4.tcp_keepalive_probes" = 6;
+  };
+
   nixpkgs.config.packageOverrides = pkgs:
     rec {
       prosody = pkgs.callPackage ./customized/prosody.nix ({