Use 0.0.0.0 by default for server host. Fixes https://github.com/GNS3/gns3-server/issues/1663

gns3server/run.py

@@ -116,7 +116,7 @@ def parse_arguments(argv):
 
     config = Config.instance().get_section_config("Server")
     defaults = {
-        "host": config.get("host", "localhost"),
+        "host": config.get("host", "0.0.0.0"),
         "port": config.get("port", 3080),
         "ssl": config.getboolean("ssl", False),
         "certfile": config.get("certfile", ""),

gns3server/web/route.py

@@ -118,7 +118,7 @@ class Route(object):
         if not user:
             log.error("HTTP authentication is enabled but no username is configured")
         else:
-            log.error("Invalid authentication for username '{}'".format(user))
+            log.error("Invalid HTTP authentication for username '{}'".format(user))
 
         response = Response(request=request, route=route)
         response.set_status(401)