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Setting up a computer network is very important, but there are many other operations that occur on a daily basis that can include '''trouble-shooting''', '''repairing network connection issues''' as well as '''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 an '''IDS''' (Intrusion Detection System) to monitoring and flagging suspicious activity to implementing screen savers on workstations.
In this lab, you will learn how to use '''ssh''', '''scp''', '''sftp''' commands install and configure the SSH service on a VM to allow users to securely access and share data between authorized personnel. In addition, you will learn various methods of running and configuring an ssh server which include: using '''Public Key Authentication''', setting up an '''SSH tunnel''' in order to securely run graphical applications safely among computers in the network, '''disabling root login''', and '''changing the default ssh communication port''' to mislead potential penetration testers (also known as "pen-testers" or "hackers"). You will also learn how to setup a firewall using the '''iptables''' command in order to control the flow of packets throughout your computer server.
* To set up, configure Secure Shell Services ('''ssh/sshd''')
* To use the customize '''sshsshd''', '''scp''', and '''sftp''' clients to access, copycreate a more private, or transfer data among Linux servers in a secure mannersystem
* Use ssh to '''tunnel X applications'''
* To tunnel network traffic via other communication ports
* To customize '''sshd''' to create a more private, secure system# Gain initial exposure to Learn the basics of the '''iptables''' command used to configure and maintain a firewall for protection and troubleshooting# Configure '''iptables''' to '''allow/disallow/forward''' different types of network traffica Linux server
