docker host networks

docker/README.md

@@ -225,3 +225,7 @@ services:
 $ docker-compose down -v
 ```
 
+## Host Networking [link](https://docs.docker.com/docker-for-windows/networking/)
+
+* `host.docker.internal` or `gateway.docker.internal`
+

mysql/README.md

@@ -42,6 +42,8 @@ $ ssh -L [local port]:[database host]:[remote port] [username]@[remote host]
 
 // example
 $ ssh -L 3306:rr-zf81fzm6ija52q623.mysql.kualalumpur.rds.aliyuncs.com:3306 tenghieyik@172.22.4.252
+
+$ ssh -L host.docker.internal:3306:rr-zf81fzm6ija52q623.mysql.kualalumpur.rds.aliyuncs.com:3306 tenghieyik@172.22.4.252
 ```
 
 * dump