How to send rosbag file to server?

I am working on Gazebo 2.2.2 with two robots in an Gazebo environment. One of them is server while another is client. I need to send the rosbag file recorded by client to server so that server can do computations based on the data of the file. How do I send .bag file to the server? If not .bag file, then can I send .txt file from client to server? I am using ROS Indigo on Ubunut 14.04.