su: Authentication failure 原因可能是还没有设置su,需要设置su 解决方法:输入sudo passwd root本栏目推荐文章mysql发生连接异常Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failureERROR 2059 (HY000): Authentication plugin 'caching_sha2_password'linux ubantu新建用户su后不显示用户名、路径等前缀问题解决方案Github 解决 Recv failure: Connection reset by peerTemporary failure in name resolutionKernel suFreeBSD “su: Sorry” ProblemHash-based Message Authentication Code(HMAC)linux su 所有用户,permission denied解决Authentication plugin ‘caching_sha2_password‘ cannot be loaded问题Authentication failure suauthentication failure su authentication smtp-server failure server root authentication failures身份 su su2 mru-m-su sudo su linux su kernel su freebsd problem sorry su