linux-resolves an issue where putty cannot log on to a Linux host directly using the root user

problem Description: Sometimes, when you use putty to connect to a remote Linux host, you will not be able to log in directly using root, but you can log in with another user and then switch to the root user .

Workaround: 1. Modify the configuration file

Vi/etc/ssh/sshd_config

2. Find the permitrootlogin entry , set to

Permitrootlogin Yes

3. Save exit

4. Restart the SSH service, problem solving

linux-resolves an issue where putty cannot log on to a Linux host directly using the root user