How to make SSH connection between servers using public-key authentication?

What can I do to make an SSH connection from Japan to the United States faster?

• I have a lifetime account with the Computer Science department I went to in the United States, but I now live in Japan. Since I've realized that relying on a personal desktop is inconvenient when moving, I'd like to use the department account I have, but I've noticed the distance of the connection while typing in SSH. Is there anything I can do above compressing the connection with -c?

• Answer:

  Use Mosh. http://mosh.mit.edu It has a predictive local echo feature that lets you see your own typing immediately. But it's intelligent enough not to echo when it shouldn't. Mosh also lets you roam from Wi-Fi to cellular or to another ESSID, or put your laptop to sleep, without losing your connection. Over the longer term, try to transition to a workflow where your computer's communications are short-lived and transactional. E.g., Web traffic, Git pushes and pulls, and emails. But no long-lived interactive traffic unless you can't avoid it (like a videoconference).