title: Mysql logging in even without providing password
body: <p>mysql logging in the prompt even not providing password , 
  If provided like <code>mysql -u root -p</code> its prompting for password 
  if provided like <code>mysql -u root</code> its logging in without asking for password 
  i have run the query </p>
  
  <pre><code>select user,hosts from mysql.user; 
  </code></pre>
  
  <p>and came to know there are 3 root users with different hosts as shown </p>
  
  <pre><code>+------+-------------+
  | user | host        |
  +------+-------------+
  | root | 127.0.0.1   |
  | root | db-busindia |
  | root | localhost   |
  +------+-------------+
  </code></pre>
  
  <p>And interesting thing is that mysql server name is also db-busindia , is <code>root@'db-busindia'</code> the culprit ? </p>