Shulou(Shulou.com)06/01 Report--

This article shows you how the application of Linux in practice is, the content is concise and easy to understand, it can definitely brighten your eyes. I hope you can get something through the detailed introduction of this article.

Ladies and gentlemen, how did you spend this weekend? This weekend, I studied and studied at home, but in the middle of my study, the leader of the company suddenly called me and said that a colleague would go to the customer to deploy the unattended installation system service and asked me if I would go to study. I think I am learning Linux, although I have not yet learned that part, but contact in advance will certainly be of great help to the later study, so I gladly agreed.

Before I went, I contacted my colleagues and made an appointment for the time and place to meet in advance. on the way in the past, I found an explanation on the unattended installation system in my newly bought book. I found a whole chapter devoted to unattended installation. According to the explanation in this book, I learned that the unattended installation service is used when there are hundreds of servers in the production environment that need to install the system. There are PXE, TFTP, FTP, DHCP, Kickstart and other services that need to be used in building the unattended system. This unattended installation system can automatically install systems for dozens of servers, which rescues the operation and maintenance staff from repetitive work. It also greatly improves the efficiency of system installation.

Now let's take a look at what PXE,PXE (Preboot eXecute Environment, pre-boot execution environment) is a technology developed by Intel that allows the computer to boot the operating system through the network (provided that the network card installed on the computer supports PXE technology). It is mainly used to guide the client host to install the Linux operating system in the unattended installation system.

After arriving at the scene with my colleagues, my colleagues began to deploy, and I watched and studied. First, colleagues begin to configure the DHCP service, which is used by the DHCP service program to assign available IP addresses to the client host, which is the basis for file transfer between the server and the client host, so configure the DHCP service program first. After configuring the DHCP service, colleagues continue to configure the TFTP service program. TFTP, as a simple file transfer protocol based on UDP protocol, can profit from the required file resources without user authentication, so next configure the TFTP service program to provide boot and driver files for the client host. After the TFTP service configuration is complete, the next configuration is the SYSLinux service program, SYSLinux is a service program used to provide boot loading. After configuring the SYSLinux service, the next configuration is the VSFtpd service program. In the service of the unattended installation system, the CD image is transmitted through the TFTP protocol, so it is bound to use the vsftpd service program. You can also use the httpd service program to provide access to the web website, as long as you can ensure that the CD image is smoothly transferred to the client host. What needs to be done after configuring the vsftpd service is to create a KickStart answer file, which contains the options and parameter information needed in the system installation process. The system can automatically call the contents of this answer file, so as to realize unattended installation of the operating system. The Kickstart answer file is not very complicated, it has only about 46 lines of parameters and comments, you can quickly understand the role of each parameter through the name and introduction of the parameters. If you feel that the default answer file parameters in the system are few, which can not meet the needs of the production environment, you can install the system-config-kickstart package through the Yum software warehouse.

After a series of service deployments, the unattended installation system can be used. After a colleague's operation, more and more aroused my morale to learn, I also want to deploy an unattended system on my own.

The above content is what the practical application of Linux is like. Have you learned any knowledge or skills? If you want to learn more skills or enrich your knowledge reserve, you are welcome to follow the industry information channel.

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