[root@rusky]# net ads join -U administrator

Enter administrator's password:

kinit succeeded but ads_sasl_spnego_krb5_bind failed: Ticket expired

Failed to join domain: failed to connect to AD: Ticket expired

使用data命令查看时间，发现linux机器与windows时间相差10分钟，重新同步时间后，加入域正常。
ntpdate命令同步时间：

[root@rusky]#ntpdate -u 域服务器IP      

[root@rusky]#net ads join -U administrator

Enter administrator's password:

Using short domain name --test

....加入域成功