diff --git a/trytond/protocols/jsonrpc.py b/trytond/protocols/jsonrpc.py
index 3d198bb7ca..3358f1e8de 100644
--- a/trytond/protocols/jsonrpc.py
+++ b/trytond/protocols/jsonrpc.py
@@ -274,6 +274,8 @@ class SimpleThreadedJSONRPCServer(SocketServer.ThreadingMixIn,
     def server_bind(self):
         self.socket.setsockopt(socket.SOL_SOCKET,
                 socket.SO_REUSEADDR, 1)
+        self.socket.setsockopt(socket.SOL_SOCKET,
+            socket.SO_KEEPALIVE, 1)
         SimpleJSONRPCServer.server_bind(self)
 
 
diff --git a/trytond/protocols/webdav.py b/trytond/protocols/webdav.py
index ad941550c4..641b928904 100644
--- a/trytond/protocols/webdav.py
+++ b/trytond/protocols/webdav.py
@@ -83,6 +83,8 @@ class BaseThreadedHTTPServer(SocketServer.ThreadingMixIn,
     def server_bind(self):
         self.socket.setsockopt(socket.SOL_SOCKET,
                 socket.SO_REUSEADDR, 1)
+        self.socket.setsockopt(socket.SOL_SOCKET,
+            socket.SO_KEEPALIVE, 1)
         BaseHTTPServer.HTTPServer.server_bind(self)
 
 
diff --git a/trytond/protocols/xmlrpc.py b/trytond/protocols/xmlrpc.py
index f3e913ce70..def53a534a 100644
--- a/trytond/protocols/xmlrpc.py
+++ b/trytond/protocols/xmlrpc.py
@@ -177,6 +177,8 @@ class SimpleThreadedXMLRPCServer(SocketServer.ThreadingMixIn,
     def server_bind(self):
         self.socket.setsockopt(socket.SOL_SOCKET,
                 socket.SO_REUSEADDR, 1)
+        self.socket.setsockopt(socket.SOL_SOCKET,
+            socket.SO_KEEPALIVE, 1)
         SimpleXMLRPCServer.SimpleXMLRPCServer.server_bind(self)