Help create a snapshot of the problem has an important role in the system caused irreversible, but the number of snapshot creation is limited, so you must also create a snapshot of properly
Matters lightweight application server creates a snapshot of a little attention, it is time to roll back the snapshot to reset the root account password, or log on using xshell filezilla client or logged in, even if there is no change the previous password can not get logged in, only xshell use the key login, password is gray prohibit login. Only reset the password to log back in lightweight Ali cloud server console.
When necessary at some common fire also check on your own server have not turned
