The day of failure...
Today, I woke up with a bad news.
The web server, which administered by me, down.
I cannot access neither http or ssh.
So, the only way to solve the problem is to sit in the front of the console.
But I cannot do it now due to the security policy of the data center.
The person that can walk in the data center must pre-register
and it's limit to 3 persons per rack.
Of course, I'm not a registered.
So, I must wait another person who is granted... T-T