diff -ru -I '\$Id:' net.old/ipsvd-0.12.1/src/socket_bind.c net/ipsvd-0.12.1/src/socket_bind.c
--- net.old/ipsvd-0.12.1/src/socket_bind.c	2006-02-04 14:16:48.000000000 -0500
+++ net/ipsvd-0.12.1/src/socket_bind.c	2013-12-26 15:47:25.166952124 -0500
@@ -31,3 +31,9 @@
     size -= (size >> 5);
   }
 }
+
+int socket_keepalive(int s)
+{
+  int opt = 1;
+  return setsockopt(s,SOL_SOCKET,SO_KEEPALIVE,&opt,sizeof opt);
+}
diff -ru -I '\$Id:' net.old/ipsvd-0.12.1/src/socket.h net/ipsvd-0.12.1/src/socket.h
--- net.old/ipsvd-0.12.1/src/socket.h	2006-02-04 14:16:48.000000000 -0500
+++ net/ipsvd-0.12.1/src/socket.h	2013-12-26 15:47:25.167952137 -0500
@@ -18,5 +18,6 @@
 extern int socket_remote4(int,char *,uint16 *);
 
 extern void socket_tryreservein(int,int);
+extern int socket_keepalive(int);
 
 #endif
diff -ru -I '\$Id:' net.old/ipsvd-0.12.1/src/tcpsvd.c net/ipsvd-0.12.1/src/tcpsvd.c
--- net.old/ipsvd-0.12.1/src/tcpsvd.c	2006-02-04 14:16:47.000000000 -0500
+++ net/ipsvd-0.12.1/src/tcpsvd.c	2013-12-26 15:48:10.644538719 -0500
@@ -32,9 +32,9 @@
 #endif
 
 #ifdef SSLSVD
-#define USAGE " [-Ehpv] [-u user] [-c n] [-C n:msg] [-b n] [-l name] [-i dir|-x cdb] [-t sec] [-U ssluser] [-/ root] [-Z cert] [-K key] host port prog"
+#define USAGE " [-Ehkpv] [-u user] [-c n] [-C n:msg] [-b n] [-l name] [-i dir|-x cdb] [-t sec] [-U ssluser] [-/ root] [-Z cert] [-K key] host port prog"
 #else
-#define USAGE " [-Ehpv] [-u user] [-c n] [-C n:msg] [-b n] [-l name] [-i dir|-x cdb] [-t sec] host port prog"
+#define USAGE " [-Ehkpv] [-u user] [-c n] [-C n:msg] [-b n] [-l name] [-i dir|-x cdb] [-t sec] host port prog"
 #endif
 
 #define VERSION "$Id: tcpsvd.c,v 1.24 2006/02/03 19:30:24 pape Exp $"
@@ -54,6 +54,7 @@
 unsigned long cnum =0;
 unsigned long cmax =30;
 unsigned long timeout =0;
+unsigned int keepalive =0;
 
 unsigned int ucspi =1;
 const char *instructs =0;
@@ -241,6 +242,8 @@
   else run =prog;
   if ((fd_move(0, c) == -1) || (fd_copy(1, 0) == -1))
     drop("unable to set filedescriptor");
+  if (keepalive)
+    socket_keepalive(0);
   sig_uncatch(sig_term);
   sig_uncatch(sig_pipe);
   sig_uncatch(sig_child);
@@ -271,10 +274,10 @@
 
 #ifdef SSLSVD
   while ((opt =getopt(argc, (const char **)argv,
-                      "c:C:i:x:u:l:Eb:hpt:vVU:/:Z:K:")) != opteof) {
+                      "c:C:i:x:u:l:Eb:hkpt:vVU:/:Z:K:")) != opteof) {
 #else
   while ((opt =getopt(argc, (const char **)argv,
-                      "c:C:i:x:u:l:Eb:hpt:vV")) != opteof) {
+                      "c:C:i:x:u:l:Eb:hpkt:vV")) != opteof) {
 #endif
     switch(opt) {
     case 'c': scan_ulong(optarg, &cmax); if (cmax < 1) usage(); break;
@@ -297,6 +300,7 @@
     case 'E': ucspi =0; break;
     case 'b': scan_ulong(optarg, &backlog); break;
     case 'h': lookuphost =1; break;
+    case 'k': keepalive =1; break;
     case 'p': lookuphost =1; paranoid =1; break;
     case 't': scan_ulong(optarg, &timeout); break;
     case 'v': ++verbose; break;