* # To use the '''ssh''' and '''scp''' to access and copy data among Linux servers in a secure manner# To set up, configure Secure Shell Services ('''ssh/sshd''')* # Use ssh to '''tunnel X applications'''# To customize '''sshd''' to create a more private, secure system* Use ssh # Gain initial exposure to '''tunnel X applications'''* To tunnel network traffic via other communication ports* Learn the basics of the '''iptables''' command used to configure and maintain a firewall for protection and troubleshooting # Configure '''iptables''' to set a Linux serverdefault policy and add exceptions to the default policy