support ipv6
diff --git a/xos/nginx/xos.conf b/xos/nginx/xos.conf
index 1d1bb18..64d9d5e 100644
--- a/xos/nginx/xos.conf
+++ b/xos/nginx/xos.conf
@@ -6,7 +6,8 @@
 
 
 server {
-    listen 80;
+    listen   80;
+    listen   [::]:80 default ipv6only=on; ## listen for ipv6
     server_name 127.0.0.1;
 
     location /static/ {