Secure Shell

From KevinWiki

Secure Shell (SSH)

Secure Shell (SSH) is a network protocol which transfers data using a secure channel between two networks.

Tunneling

-Creating a tunnel through ssh

$ ssh id@<remote machine address> -L <port number on local machine>:<local machine address>:<port on remote machine>

-To forward traffic from port 4881 on the local machine to port 8080 on the remote machine the IP of which is 192.168.0.10.

$ ssh id@192.168.0.10 -L 4881:localhost:8080

-To test a Java web application, running on tomcat server on a remote machine.

$ ssh id@remote.address -L 8080:localhost:8080

SCP

-Copy a file in the 'dir' directory on the remote machine to the directory 'home' on the local machine.

$ scp -pr username@remote_address:dir/file /home/

-p      Preserves modification times, access times, and modes from the original file.
-r      Recursively copy entire directories.

-Copy a file on the local machine to remote machine

$ scp -p localfile remote.address:dir