Four tips for linux System Maintenance

Article Title: four tips for linux system maintenance are learned step by step. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.

Linux servers are relatively more stable and secure than Windwos servers. However, to do this, you must first sharpen your tools. Stable and secure Linux servers are still inseparable from reasonable and timely maintenance. There are many maintenance skills for Linux server systems. I will give you some tips here.
1. Maintain the latest version of the software package.
Linux server software packages are constantly upgraded, just like patches for the Windwos operating system. Linux server software upgrade has two main purposes. The first is to enhance the functionality of the software, and the second is to solve some known security vulnerabilities. For example, RedHat will immediately research and develop corresponding solutions after learning about new security vulnerabilities, and then solve the problems in the new software packages. For this reason, the system administrator must promptly understand the latest information about the software package and promptly upgrade the software package to keep the latest version of the software package.
So how do System Administrators know the latest software versions and security vulnerabilities? I recommend a RedHat support website. Generally, after receiving a notification about a security vulnerability, RedHat finds a solution in the shortest possible time, publish and connect the latest software package on the Technical Support Platform. Generally, you can find the latest software version on the Linux operating system of more than 90% on this website. Therefore, the system administrator needs to pay attention to this website every day to learn about the latest version and security vulnerability information of the software package. Upgrade the software package as necessary.
2. Create a floppy boot disk.
Although the number of floppy disks is getting fewer and fewer, some large servers, such as IBM servers, still have floppy drives. This is mainly because some complicated problems can be solved through the soft drive sometimes. Therefore, after the Linux server is deployed, it is best to create a boot disk for a floppy disk, which can be used as an emergency when necessary.
For example, sometimes the system administrator may encounter some inexplicable problems during the installation process. For example, the installation may be stuck in the middle many times and cannot be successful. This is probably because of image installation problems. In this case, the system administrator needs a modified floppy disk image. Although this situation is rare, it is easy to deploy large servers. In this case, the system administrator should not blindly re-download the installation image or take other time-and labor-consuming actions. You can use a standard installation floppy disk to start the installation. It may be possible to solve the fault during the installation process.
It is precisely because the boot disk Of a floppy disk also plays an important role in Linux server maintenance. Therefore, RedHat also provides many methods to create the boot disk Of a floppy disk. Such as creating a floppy boot disk during installation. The method for creating these boot disks is more common and I will not describe them. Here I want to introduce a method for creating a boot disk for a floppy disk in a Windows environment. This is mainly because most system administrators still have a Windwos computer at hand. Instead, the Linux operating system is used as a server. While the server is placed in a fixed place, and some are not even equipped with a display, it is troublesome to create a floppy boot disk on the Linux server. So here I will push you through the Windwos client to create a floppy boot disk. The tool used here only requires the RedHat installation disk.
The system administrator first places the Linux installation disk in the optical drive of the Windwos client. Open the DOS interface of the Microsoft operating system and go to the directory where the optical drive is located. In the RedHat installation disk, there is a directory named dosutils, in which there is an executable command file called rawrite. This is the file used to create the boot disk. Run this command after preparing the floppy disk. Then, this command requires you to enter the complete path name when entering the floppy disk image, and insert the prepared floppy disk into the floppy disk. When the application determines to which floppy disk drive the boot image is written to, you can specify the floppy disk initiator, which is usually :.
In addition, boot from a floppy disk is similar to boot from a CD. If you use a floppy disk to start the installation, you may need to confirm the language used, the selected keyboard type, and the selected mouse type. At this point, the Linux boot program is not as strong as the Windows boot program and will not automatically identify the connected device. To this end, you need to specify the keyboard and mouse types displayed by the system administrator during the boot process. After the device is changed, you still need to reconfigure the device if you change the mouse from the three keys to the two keys or the mouse is changed. It can be seen that the Linux operating system is inferior to the boot program of the Windows operating system. But in general, the boot disk function of the Linux operating system is still very powerful. Therefore, I strongly recommend that you create a floppy boot disk when deploying a Linux server. Because the boot disk Of a floppy disk is easy to break, it is also feasible to create one more disk.

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