userauth_pubkey: key type ssh-rsa not in PubkeyAcceptedAlgorithms [preauth]
OpenSSH 7.0 以上已经默认关闭了 ssh-rsa 了，我们看一下我们的 ssh 版本：
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| ssh -V
sudo vim /etc/ssh/sshd_config
PubkeyAuthentication yes
PubkeyAcceptedKeyTypes=+ssh-rsa
sudo service sshd restart
ssh -Q key
ssh -Q PubkeyAcceptedAlgorithms | grep rsa
ssh -G user@somehost.example.com
LogLevel INFO
loglevel QUIET
tail -f /var/log/auth.log
|