diff --git a/docs/BUGS.md b/docs/BUGS.md
index 91af47d..943eccb 100644
--- a/docs/BUGS.md
+++ b/docs/BUGS.md
@@ -54,3 +54,17 @@ cloud, and a server will need to be available there.
 
 The access to IP `140.82.114.4` is likely a git pull/update ?
 
+
+# DNS
+Notable, how DNS resolving is done. This binary answers on port `53`:
+
+`/lib/systemd/systemd-resolved`
+
+```
+cat /etc/resolv.conf
+
+nameserver 127.0.0.53
+options edns0 trust-ad
+search lan
+```
+