问题现象
[root]# ssh -p 10000 secure@xx.xx.xx.xx
/etc/ssh/ssh_config line 59: Unsupported option "gssapiauthentication"
处理方法:注释/etc/ssh/ssh_config文件第59行
[root]# vi /etc/ssh/ssh_config
# GSSAPIAuthentication yes
重启sshd服务
[root]# systemctl restart sshd
再次连接无报错