phpmyadmin how to take the backup of mysql server RHEL5

Hi all,

I installed the phpmyadmin.

can anyone please tell me that i have mysql server. and i had made one database in that witht he name mymoodle.

Now i want to take the backup of that database.
how should i do it.
after 10.2.1.67/phpmyadmin
this is the first screen that i get

now how whould i proceed .

phpMyAdmin 2.11.8.1 setup
Welcome
You want to configure phpMyAdmin using web interface. Please note that this only allows basic setup, please read documentation to see full description of all configuration directives.
Can not load or save configuration
Please create web server writable folder config in phpMyAdmin toplevel directory as described in documentation. Otherwise you will be only able to download or display it.
Not secure connection
You are not using secure connection, all data (including sensitive, like passwords) are transfered unencrypted! If your server is also configured to accept HTTPS request follow this link to use secure connection.

Available global actions (please note that these will delete any changes you could have done above):
Servers add
Layout navigationframe  tab  icons  browsing editing querywindow
Features  upload/download security mysqlmanual charsets etc.
Configuration overview display download clear  etc.
Other actions  checkforlatestversion gotohomepage


kindly tell me how i should proceed to take the backup of that database

thanks in advance
jatender