diff --git a/veilid-flutter/example/lib/history_text_editing_controller.dart b/veilid-flutter/example/lib/history_text_editing_controller.dart
new file mode 100644
index 00000000..f9646e53
--- /dev/null
+++ b/veilid-flutter/example/lib/history_text_editing_controller.dart
@@ -0,0 +1,69 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+
+/// TextField History Controller
+class HistoryTextEditingController {
+  HistoryTextEditingController(
+      {required this.setState, TextEditingController? controller})
+      : _controller = controller ?? TextEditingController() {
+    _historyFocusNode = FocusNode(onKeyEvent: (_node, event) {
+      if (event.runtimeType == KeyDownEvent &&
+          event.logicalKey == LogicalKeyboardKey.arrowUp) {
+        if (_historyPosition > 0) {
+          if (_historyPosition == _history.length) {
+            _historyCurrentEdit = _controller.text;
+          }
+          _historyPosition -= 1;
+          setState(() {
+            _controller.text = _history[_historyPosition];
+          });
+        }
+        return KeyEventResult.handled;
+      } else if (event.runtimeType == KeyDownEvent &&
+          event.logicalKey == LogicalKeyboardKey.arrowDown) {
+        if (_historyPosition < _history.length) {
+          _historyPosition += 1;
+          setState(() {
+            if (_historyPosition == _history.length) {
+              _controller.text = _historyCurrentEdit;
+            } else {
+              _controller.text = _history[_historyPosition];
+            }
+          });
+        }
+        return KeyEventResult.handled;
+      } else if (event.runtimeType == KeyDownEvent) {
+        _historyPosition = _history.length;
+        _historyCurrentEdit = _controller.text;
+      }
+      return KeyEventResult.ignored;
+    });
+  }
+
+  void submit(String v) {
+    // add to history
+    if (_history.isEmpty || _history.last != v) {
+      _history.add(v);
+      if (_history.length > 100) {
+        _history.removeAt(0);
+      }
+    }
+    _historyPosition = _history.length;
+    setState(() {
+      _controller.text = '';
+    });
+  }
+
+  FocusNode get focusNode => _historyFocusNode;
+  TextEditingController get controller => _controller;
+
+  ////////////////////////////////////////////////////////////////////////////
+
+  late void Function(void Function()) setState;
+  final TextEditingController _controller;
+  late final FocusNode _historyFocusNode;
+
+  final List<String> _history = [];
+  int _historyPosition = 0;
+  String _historyCurrentEdit = '';
+}
diff --git a/veilid-server/src/settings.rs b/veilid-server/src/settings.rs
index e4455fd6..e09f1305 100644
--- a/veilid-server/src/settings.rs
+++ b/veilid-server/src/settings.rs
@@ -163,26 +163,26 @@ core:
             udp:
                 enabled: true
                 socket_pool_size: 0
-                listen_address: ''
+                listen_address: ':5150'
                 # public_address: ''
             tcp:
                 connect: true
                 listen: true
                 max_connections: 32
-                listen_address: ''
+                listen_address: ':5150'
                 #'public_address: ''
             ws:
                 connect: true
                 listen: true
                 max_connections: 32
-                listen_address: ''
+                listen_address: ':5150'
                 path: 'ws'
                 # url: 'ws://localhost:5150/ws'
             wss:
                 connect: true
                 listen: false
                 max_connections: 32
-                listen_address: ''
+                listen_address: ':5150'
                 path: 'ws'
                 # url: ''
         "#,
@@ -1676,26 +1676,40 @@ mod tests {
         );
         assert_eq!(s.core.network.application.http.url, None);
         //
+        let valid_socket_addrs = [
+            SocketAddr::new(IpAddr::V4(Ipv4Addr::new(0, 0, 0, 0)), 5150),
+            SocketAddr::new(IpAddr::V6(Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 0)), 5150),
+        ];
+
         assert!(s.core.network.protocol.udp.enabled);
         assert_eq!(s.core.network.protocol.udp.socket_pool_size, 0);
-        assert_eq!(s.core.network.protocol.udp.listen_address.name, "");
-        assert_eq!(s.core.network.protocol.udp.listen_address.addrs, vec![]);
+        assert_eq!(s.core.network.protocol.udp.listen_address.name, ":5150");
+        for addr in &s.core.network.protocol.udp.listen_address.addrs {
+            assert!(valid_socket_addrs.contains(addr));
+        }
+        assert!(!s.core.network.protocol.udp.listen_address.addrs.is_empty());
         assert_eq!(s.core.network.protocol.udp.public_address, None);
 
         //
         assert!(s.core.network.protocol.tcp.connect);
         assert!(s.core.network.protocol.tcp.listen);
         assert_eq!(s.core.network.protocol.tcp.max_connections, 32);
-        assert_eq!(s.core.network.protocol.tcp.listen_address.name, "");
-        assert_eq!(s.core.network.protocol.tcp.listen_address.addrs, vec![]);
+        assert_eq!(s.core.network.protocol.tcp.listen_address.name, ":5150");
+        for addr in &s.core.network.protocol.tcp.listen_address.addrs {
+            assert!(valid_socket_addrs.contains(addr));
+        }
+        assert!(!s.core.network.protocol.tcp.listen_address.addrs.is_empty());
         assert_eq!(s.core.network.protocol.tcp.public_address, None);
 
         //
         assert!(s.core.network.protocol.ws.connect);
         assert!(s.core.network.protocol.ws.listen);
         assert_eq!(s.core.network.protocol.ws.max_connections, 32);
-        assert_eq!(s.core.network.protocol.ws.listen_address.name, "");
-        assert_eq!(s.core.network.protocol.ws.listen_address.addrs, vec![]);
+        assert_eq!(s.core.network.protocol.ws.listen_address.name, ":5150");
+        for addr in &s.core.network.protocol.ws.listen_address.addrs {
+            assert!(valid_socket_addrs.contains(addr));
+        }
+        assert!(!s.core.network.protocol.ws.listen_address.addrs.is_empty());
         assert_eq!(
             s.core.network.protocol.ws.path,
             std::path::PathBuf::from("ws")
@@ -1705,8 +1719,11 @@ mod tests {
         assert!(s.core.network.protocol.wss.connect);
         assert!(!s.core.network.protocol.wss.listen);
         assert_eq!(s.core.network.protocol.wss.max_connections, 32);
-        assert_eq!(s.core.network.protocol.wss.listen_address.name, "");
-        assert_eq!(s.core.network.protocol.wss.listen_address.addrs, vec![]);
+        assert_eq!(s.core.network.protocol.wss.listen_address.name, ":5150");
+        for addr in &s.core.network.protocol.wss.listen_address.addrs {
+            assert!(valid_socket_addrs.contains(addr));
+        }
+        assert!(!s.core.network.protocol.wss.listen_address.addrs.is_empty());
         assert_eq!(
             s.core.network.protocol.wss.path,
             std::path::PathBuf::from("ws")