Client Side (application user)
1) Install openssh tool by typing the following command
	sudo apt-get install openssh-server
	sshkeygen -t rsa
	sudo apt-get install sshpass
2) Now run the application by typing 
	javac -cp ":a.jar:aa.jar:ganymed-ssh2-build210.jar" *.java
	java -cp ":a.jar:aa.jar:ganymed-ssh2-build210.jar" Main

Server Side
1) Make sure openssh is installed in server too.
	sudo apt-get install openssh-server
	sshkeygen -t rsa
	sudo apt-get install sshpass
2) Install vsftpd by typing the following command
	sudo apt-get install vsftpd
3) In /etc/vsftpd.conf file make sure line number 31 is uncommented
	write_enable=YES