ssh -v
Verbose; shows in detail what is happening while establishing the connection
ssh -Y
Enables support for graphical applications
ssh -p <PORT></PORT>
Used to connect to an SSH service that is not listening on the default port 22
rsync -r
Synchronizes the entire directory tree
rsync -l
Copies symbolic links as symbolic links
rsync -p
Preserves permissions
rsync -n
Performs only a dry run, not actually synchronizing anything
rsync -a
Uses archive mode, thus ensuring that subdirectory trees and all file properties will be synchronized
rsync -A
Uses archive mode, and in addition synchronizes ACLs