When you take your computer onto a strange network, it pays to be highly suspicious and even paranoid about the situation. There are many tricks that are out there now that allows malicious hackers to gather your information as the packets transmit through the air. Many people need to access their work computer when they are in a remote location and this action requires traveling over strange networks. Some people only need a command line client to be able to access the office server. The SSH  protocol allows a command line client to be able to access a work server securely through encrypted data packets.

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How To Communicate Securely Through A Network With SSH