1. Install Oracle VM virtualbox at http://www.oracle.com/technetwork/server-storage/virtualbox/downloads/index.html. I use version 4.0.
2. refer to the help document of the virtual machine to create a virtual hard disk. Note that when selecting the system type, select Linux as the system, and choose linux2.4 as the version, instead of RedHat, because the default Redhat is the 2.6 kernel, and redhat9 is the 2.4 kernel.
3. Use the Virtual CD tool provided by the virtual machine to load the redhat9 installation image, and then restart.
4. The following page is displayed.
5. click Next. Because I need to install all of them, click "Custom" in the "installation type" step, and then the partition and other information, which can be modified as needed. In the "select Software Package group" step, drag the scroll bar to the bottom and select all. Click Next to wait for installation.
6. network configuration. In the virtual machine, select the bridge (bridged adapter) mode. RedHat can automatically obtain IP addresses using DHCP, or use graphical configuration tools and modify configuration files.
7. Configure vsftpd. If the installation is complete, there is basically nothing to configure. Use the "service vsftpd start" command to enable it. For details about the configuration, see "http://blog.csdn.net/xautfengzi/archive/2011/01/26/6164527.aspx.pdf ".
8. Configure the telnet service. Please refer to the following link for more information: http://blog.csdn.net/xautfengzi/archive/2011/01/26/6164527.aspx.pdf ".