diff --git a/hugegraph-server/hugegraph-dist/src/assembly/static/conf/rest-server.properties b/hugegraph-server/hugegraph-dist/src/assembly/static/conf/rest-server.properties
index b67905fc19..507867380c 100644
--- a/hugegraph-server/hugegraph-dist/src/assembly/static/conf/rest-server.properties
+++ b/hugegraph-server/hugegraph-dist/src/assembly/static/conf/rest-server.properties
@@ -1,4 +1,5 @@
 # bind url
+# could use '0.0.0.0' or specified (real)IP to expose external network access
 restserver.url=http://127.0.0.1:8080
 # gremlin server url, need to be consistent with host and port in gremlin-server.yaml
 #gremlinserver.url=http://127.0.0.1:8182