Changes

# Use To use the '''ssh''' and '''scp''' to access and copy data among Linux servers in a secure manner

#* To refuse root login from remote Linux servers or limit users that are permitted to ssh into Linux servers# Generate Public and Private keys to ensure secure connections between Linux servers# Use ssh to '''tunnel X Xwindow applications'''# To customize '''sshd''' to create a more private, secure systemLearn about the Linux firewall (via iptables):# Gain initial exposure to the * Use '''iptables''' command used to configure and maintain a firewall for protection and troubleshooting# * Configure '''iptables''' to set a default policy and add exceptions to the default policy