Use sshsecureshell to connect to RedHatEnterprise5 and fail to su as Administrator

Use sshsecureshell to connect to RedHatEnterprise5. You cannot su it as the administrator-Linux Enterprise Application-Linux server application. For more information, see the following. Recently, RedHat Enterprise 5 was installed. I connected to the server using ssh secure shell and used a common account. I found garbled characters after I press enter and entered the password in any way.

Later I checked the normal user's environment variable, input the env and found that LANG = zh_CN.UTF-8, I changed it to LANG = ZH_CN.UTF-8, I .e. % LANG = ZH_CN.UTF-8, press enter, in su -, the English language is displayed. You can normally enter the password and log on.