1.ssh拒绝请求

先该配置文件
https://blog.csdn.net/u012206617/article/details/83026777?ops_request_misc=&request_id=&biz_id=102&utm_term=ssh%E6%9C%8D%E5%8A%A1%E5%99%A8%E6%8B%92%E7%BB%9D%E4%BA%86%E5%AF%86%E7%A0%81%20%E8%AF%B7%E5%86%8D%E8%AF%95%E4%B8%80%E6%AC%A1&utm_medium=distribute.pc_search_result.none-task-blog-2_allsobaiduweb~default-1-83026777

重启服务
https://www.cnblogs.com/fh-fendou/articles/9938794.html