I use screen to login multi terminal.
The best way I use screen is that I can name(control + a + A ) a screen to tell which machine I am logging.
But on CentOS 7, the name I typed was auto changed to the command I just type.
Such as I was logging a MySQL machine, I rename the screen to 'mysql' to show me it is a mysql I was using. But when I type 'ls /data', the screen name auto change to 'ls /data', what I want is no matter I type, it always show 'mysql'.