diff --git a/SRV-Service-Discovery.md b/SRV-Service-Discovery.md
new file mode 100644
index 0000000..1c04c5a
--- /dev/null
+++ b/SRV-Service-Discovery.md
@@ -0,0 +1,10 @@
+## Filer server
+
+The Filer server also accepts SRV records (prepended with `dnssrv+`) to discover the master server:
+
+```bash
+ weed filer -master=dnssrv+_http._tcp.seaweedfs-master.consul
+```
+where `_http._tcp.seaweedfs-master.consul` is a DNS SRV record that returns the HTTP port of the master (or, alternatively, the gRPC port minus 10000).
+
+The SRV record may return several master instances in order to join a HA setup. A comma-separated list of SRV records pointing to several master instances **is not valid**.
\ No newline at end of file