SIMULATION -Download file from http://ip/dir/restircted.html, and the local user harry can access it by http://station.domain30.example.com/restircted.html, and cannot be accessed by t3gg.com.
SIMULATION -Configure the nfs server, share the /common directory to domain30.example.com, and allow client to have the root user right when access as a root user.
SIMULATION -Configure the samba server, share /common, which can be browsed. The user harry can only read it. If it is needed, the password for harry is harryuser.
SIMULATION -Configure an email server domain30.example.com, and it requests to send and receive emails from the local server or the user harry can send or receive emails from network. The email of user harry is /var/spool/mail/harry. Please note: the DNS server has already been MX record analyzed.
SIMULATION -Connect to the email server and send email to admin, and it can be received by harry.
SIMULATION -Configure the kernel parameters: rhelblq=1, and it is requested that your kernel parameters can be verified through /proc/cmdline.
