Login to your server Via SSH ( You can use Putty "http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html" or any SSH client )

ones you have login type in follwoing command below.

mysqldump -u root -p vos3000db > vos3000db.sql

for mysql passowrd press enter or type in your mysql passowrd

ones backup is done then zip the file with follwoing command

zip vos3000db.zip vos3000db.sql

use the following command  to copy the file to folder where you can download it

cp vos3000db.zip /usr/apache-tomcat-5.5.15/webapps/eng/

press "y" for Yes over right the file


 then on your local PC open Internet Explore and put the following link

http://"YOUR Server IP"/eng/vos3000db.zip


Done.