Bind to loopback interface by default

Adjust the fallback behavior for otherwise unconfigured address
binding to match the safe posture adopted in the sample
configuration.

diff --git a/mudpy/misc.py b/mudpy/misc.py
index df17211..6d61085 100644 (file)
--- a/mudpy/misc.py
+++ b/mudpy/misc.py
@@ -1,6 +1,6 @@
 """Miscellaneous functions for the mudpy engine."""
 
-# Copyright (c) 2004-2020 mudpy authors. Permission to use, copy,
+# Copyright (c) 2004-2021 mudpy authors. Permission to use, copy,
 # modify, and distribute this software is granted under terms
 # provided in the LICENSE file distributed with this software.
 
@@ -436,13 +436,13 @@ class Universe:
         host = self.contents["mudpy.network"].get("host")
         port = self.contents["mudpy.network"].get("port")
 
-        # if no host was specified, bind to all local addresses (preferring
+        # if no host was specified, bind to the loopback address (preferring
         # ipv6)
         if not host:
             if socket.has_ipv6:
-                host = "::"
+                host = "::1"
             else:
-                host = "0.0.0.0"
+                host = "127.0.0.1"
 
         # figure out if this is ipv4 or v6
         family = socket.getaddrinfo(host, port)[0][0]