--- lbbs/src/net_server.c	2025/12/26 11:17:41	1.114
+++ lbbs/src/net_server.c	2026/01/07 14:37:55	1.116
@@ -3,7 +3,7 @@
  * net_server
  *   - network server with SSH support
  *
- * Copyright (C) 2004-2025  Leaflet <leaflet@leafok.com>
+ * Copyright (C) 2004-2026  Leaflet <leaflet@leafok.com>
  */
 
 #ifdef HAVE_CONFIG_H
@@ -56,6 +56,7 @@
 
 enum _net_server_constant_t
 {
+	SOCKET_LISTEN_BACKLOG = 20,
 	WAIT_CHILD_PROCESS_EXIT_TIMEOUT = 5, // second
 	WAIT_CHILD_PROCESS_KILL_TIMEOUT = 1, // second
 
@@ -636,7 +637,7 @@ int net_server(const char *hostaddr, in_
 			return -1;
 		}
 
-		if (listen(socket_server[i], 10) < 0)
+		if (listen(socket_server[i], SOCKET_LISTEN_BACKLOG) < 0)
 		{
 			log_error("Telnet socket listen error (%d)", errno);
 			return -1;