Changes

Setting up a network of computers is very important, but there are many other operations that occur on a daily basis that can include trouble-shooting and repairing network connection issues and maintaining network security. System administrators need to protect or "harden" their computer networks from "penetration" from unauthorized computer users. Hardening a computer system can range from running IDS (Intrusion Detection Systems) to monitor and flag suspicious activity to maintaining workstation screen savers to protect sensitive information while staff are away from their office computers. In this lab, you will learn how to use the ssh, scp, sftp commands to work between computer systems via a networkto allow safe sharing of data between authorized personnel. In addition, you will learn various methods of how to communicate between computer networks running and configuring SSH which include: using Public Key Authentication, settings up an SSH tunnelingtunnel to run graphical application safely among computers in your network, disabling root login, and change the default communication port for SSH to mislead potential penetration testers (also known as "pen-testers" or "hackers"). and simplify secure network communication by using Public Key Authentication.