linux允许root远程ssh登录

修改文件/etc/ssh/sshd_config

# cat /etc/ssh/sshd_config
...
#LoginGraceTime 2m
#PermitRootLogin prohibit-password
#StrictModes yes
#MaxAuthTries 6
#MaxSessions 10
...

将

#PermitRootLogin prohibit-password

标注为：

PermitRootLogin yes

样例：

#LoginGraceTime 2m
#PermitRootLogin prohibit-password
PermitRootLogin yes
#StrictModes yes
#MaxAuthTries 6
#MaxSessions 10

最后，要重启一下ssh服务

# service ssh restart