Issues with installing phabricator

Hello,
I am installing phabricator using http://www.tecmint.com/install-phabricator-in-linux/
But I am facing some problem with help me.

Issue is:-
root@li1208-26:/var/www/myprojectapp/phabricator# ./bin/config set mysql.user root
[2015-12-03 07:57:54] PHLOG: ‘Retrying (2) after AphrontConnectionQueryException: Attempt to connect to root@45.79.109.26 failed with error #2003: Can’t connect to MySQL server on ‘45.79.109.26’ (111).’ at [/var/www/myprojectapp/libphutil/src/aphront/storage/connection/mysql/AphrontBaseMySQLDatabaseConnection.php:104]
[2015-12-03 07:57:54] PHLOG: ‘Retrying (1) after AphrontConnectionQueryException: Attempt to connect to root@45.79.109.26 failed with error #2003: Can’t connect to MySQL server on ‘45.79.109.26’ (111).’ at [/var/www/myprojectapp/libphutil/src/aphront/storage/connection/mysql/AphrontBaseMySQLDatabaseConnection.php:104]
Set ‘mysql.user’ in local configuration.

Please let me know