Since G-Hadoop deals with a large-scale distributed system connected with public networks, transmitting sensitive in- formation such as authentication information in plain text is insecure and inadvisable. A secure connection is required. The SSL connection is an option. However, using this protocol an additional SSL certificate, others than the proxy credential, is needed for the authentication process during the handshaking process to set up the SSL connection. In addition, a storage space on the master node is required to save the identities of the slave nodes. Furthermore, if a new slave node is added or an existing one is removed, the master node must also renew its database for the identities to maintain the synchronization. Due to these reasons, we propose a secure connection between the master node and slave nodes using the proxy credential, without the necessity of storing the identities of slave nodes on the master node. The details will be given in the following subsection, together with the description of the next phase