What to do if ssh login fails on centos

The solution is as follows:

1. Uninstall and reinstall

[root@cent ~]# yum -y remove openssh-server
[root@cent ~]# yum -y install openssh-server

2. Generate key (optional)

[root@cent ~]# sshd-keygen

3. Modify the sshd_config configuration file

[root@cent ~]# vim /etc/ssh/sshd_config
# 添加以下内容至文件末尾处 :wq
PubkeyAuthentication yes

4. Restart sshd

[root@cent ~]# systemctl restart sshd.service

Recommended tutorial: centos tutorial

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