What is the reason for the good stability of Linux system?

The stability of Linux comes from the streamlined design of its kernel, which has a smaller number of vulnerabilities than other operating systems. The Unix design system shared by Linux has withstood the test of long-term practice. Linux has absorbed the experience of Unix system development over the past quarter century. The Linux operating system embodies the design philosophy of the first modern operating system and a design solution that can stand the test of time. The most striking thing about the Linux development source code development model is that it can ensure that any system vulnerabilities can be discovered and repaired in time.

Why does Linux have such high stability?

People often ask a question: Why does Linux almost never crash? The reason why Linux is stable is that its kernel is not as large and full of loopholes as other operating systems.

According to survey data, Linux is consistent with other Unix-like systems, VMS, IBM mainframes and other large operating systems in terms of reliability. It is not difficult to conclude that the stability of the system mainly depends on the structure of the system design. The architecture of computer hardware has not changed significantly since it was designed in 1981. However, continued backward compatibility makes those applications with poor programming style reluctant to migrate to the latest version of Windows, which greatly hinders the development of system stability. Another crash-prone system, the Macintosh was as famous for its lack of memory protection and preemptive multitasking as its user-friendly interface. Despite the Macintosh's flaws, it's surprising that it doesn't crash as often as one would expect.

The stability of Linux is not an unexpected exception. Stability is a common denominator of all mainframe computer operating systems. Only WiNdows and MAC sometimes get the error. The Unix design system shared by Linux has withstood the test of long-term practice. Linux has absorbed the experience of Unix system development over the past quarter century. The Linux operating system embodies the design philosophy of the first modern operating system and a design solution that can stand the test of time. The most attractive thing about the Linux development source code development model is that it can ensure that all system vulnerabilities can be discovered and corrected in time.

As IBM says on its website, Linux is a stable, powerful operating system worth using.

The reasons why Linux is more secure

1. More excellent patch management tools

In Linux systems, when performing When the system updates automatically, it updates all installed software as well. In the Ubuntu system, any software product you download will appear in the system's program warehouse. To upgrade it, you only need to click with the mouse. In other Linux distributions, it is also very easy to add downloadable software that does not appear in the system program repository. This design greatly improves users' enthusiasm for updating the system in real time.

2. More robust default settings

The Linux system is inherently designed to be a multi-user operating system. Even if a user has malicious intent, the underlying system files are still protected. If, under very unfortunate circumstances, any remote malicious code is executed in the system, the harm it brings will be limited to a small local area.

3. Modular design:

The Linux system adopts a modular design. This means that you can remove any system component if it is no longer needed. One advantage of this is that if a user considers a component of the Linux system to be unsafe, he can uninstall it.

4. Better "zero-day attacks" defense tools

Even if you can ensure that your system is updated in real time, this does not mean It means foolproof! Zero-day attacks (zero-day attacks, which refer to attacks that exploit vulnerabilities to launch network attacks before software manufacturers release updated patches for vulnerabilities) are becoming increasingly rampant. In addition, a survey study also showed that it only takes 6 days for attackers to develop malicious attack code for vulnerabilities, while software manufacturers take much longer to launch corresponding Update patch. Therefore, a smart security strategy is crucial in protecting against zero-day attacks.

Regardless of the type of remote control code attack, the system can provide comprehensive protection through the use of AppArmor or SELinux. There are more and more mainstream Linux distributions that integrate AppArmor (for example, SuSE, Ubuntu Gutsy) or SELinux (Fedora, Debian Etch, Yellow Dog) by default in the system. These two softwares can be easily downloaded and installed through the network even on other distributions, making it convenient for users to use.

5. Open source code architecture:

In Linux systems, when talking about system security, it is more appropriate to use the phrase "what you see is what you get" to describe it. The significance of open source code is that all possible software vulnerabilities can be viewed by "many eyes" and can be resolved as quickly as possible. It’s equally important that there are no hidden fixes here. As a user, as long as you are willing, you can find out the security problems in your system and take corresponding preventive measures to deal with potential security threats, even if the vulnerability has not been patched at this time.

Advantages of Linux Server

Using Linux server online provides you with so many advantages. In fact, its advantages outweigh its disadvantages, some of which are:

1. Provides stability because Linux-based servers are not prone to crashes. In the event of a collision, the entire system is unaffected.

2. Reduce vulnerability to potential system threats. Linux is great for preventing suspicious or malicious software from invading your system and affecting its overall performance.

3. It has durability because it can remain defect-free for a long time and maintain high performance higher than your expectations.

4. Bring old computers back to life. For example, if your computer comes with a Pentium III operating system, you can install it using a Linux operating system and an online server to get it running again.

5. Speak freely, as most Linux distributions are free to download and can be installed on as many computers as you want

6. Plenty available Software and free software

There are a large number of software available on the Linux system, and most of them are free, such as the famous Apache, Samba, PHP, MySQL, etc. The low construction cost makes Linux favored by many enterprises. One of the reasons. The cost savings are inextricably linked to the superior performance of Linux.

7. Good portability and flexibility

The high portability of the Linux system means that it is suitable for almost all CPU platforms, and this also makes it easy to tailor and customize. Linux can be applied to various storage media, such as U disks, CDs, etc., and is widely used in the embedded field.

If you want to experience the Linux system without installing it, you can download a Live DVD version of the Linux image online, burn it into a CD and put it into the optical drive or use virtual machine software to directly load the image file and set CMOS/BIOS When booting from the CD, the system will automatically load the CD files and boot into the Linux system.

8. Supports almost all network protocols and development languages

I often have beginner friends ask me whether Linux does not support the TCP/IP protocol well or whether the Java development environment is not working well. Questions like that. As mentioned earlier in the history of UNIX development, the UNIX system developed together with the C language and TCP/IP protocol, and Linux is a type of UNIX. The C language has derived from the current mainstream languages ​​​​PHP, Java, C, etc. , and which network protocol has nothing to do with TCP/IP? Therefore, Linux has good support for network protocols and development languages.

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