diff --git a/README.md b/README.md
index 6df2cf7..b907394 100644
--- a/README.md
+++ b/README.md
@@ -19,10 +19,21 @@ REPOSITORY    TAG       IMAGE ID       CREATED       SIZE
 ldapdock      latest    0e4a1521b346   6 hours ago   138MB
 ```
 
-run into the container to setup openLDAP
+You can run into the container in an interactive way already with this command:
 ```
 > docker run -h example.com -i -t ldapdock /bin/bash
 ```
+With -h we are specifying the name of the host, we are using example.com, this is very important.
+
+## _Explaining DN, parentDN, CN, and DC as parameters_
+
+One of the key configuration of LDAP is our "DC" or "parent DN", which to make it easy, in this case \
+would be "dc=example,dc=com", if our domain would be for example "ideas.lab.com", the parent DN would be \
+"dc=ideas,dc=lab,dc=com". This configuration it's very often passed with the CN (Common Name) \
+in concatenation with the DN (Distinguised Name), which is not the same as parent DN, and the result \
+it's very simple, for example.com it is DN: "cn=config,dn=example,dn=com", or for ideas.lab.com \
+DN: "cn=config,dn=ideas,dn=lab,dn=com".
+
 ## _Inside the ldapdock image container_
 
 make sure to use the following command to start openLDAP