description
Tencent cloud server (centos 7.0) suddenly can not pass password,
can ping
Restart; configure security group; ports are not used
solve
Add in key instances. Not previously configured, Mr. Cheng key, then bind. (First off before binding), then you can log in through the normal key.
Follow-up
PasswordAuthentication item for future can also login passwords, modify / etc / ssh / sshd_config is yes, restart the service ($ service sshd restart)
Note also passwd root to change the root password
otherwise default password
# To disable tunneled clear text passwords, change to no here!
#PasswordAuthentication yes
#PermitEmptyPasswords no
PasswordAuthentication yes