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2025-04-07 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Servers >
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This article introduces the relevant knowledge of "what is the diagnostic method of Linux system". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!
First, Linux startup and login problem 1. Ultra-detailed system startup and landing exception troubleshooting point
What if the contents of the 2.grub.conf file are emptied?
3. Skillfully use strace to find missing files
4. Be careful that PAM won't let you log in.
I found out the reason why the 5.CentOS login is stuck.
Second, Linux performance problems 1. Find the "culprit" of Linux virtual machine Load Gao
Who triggered the 2.OOM killer?
3. Where's my server memory?
One of the reasons why the 4.CPU occupies less but the network performance is poor.
5. An IO exception capture process
Third, Linux host network problems 1.ifdown ifup command loss handling
two。 The network doesn't work? Strace made a second shot.
Summary of the discussion of 3.TIME_WAIT & CLOSE_WAIT
4. A classic case study of network jitter
IV. The problem of Linux system service and parameters 1.4 limits entry into force
Step 2.6 to find out the reasons for the differences in ss& netstat statistical results
3. Why can't the java program apply for memory even though there is plenty of memory?
4. Please do not ignore the settings of min_free_kbytes
Fifth, the final experience of the evolution and optimization of the mask project in a certain area.
This is the end of the content of "what is the diagnostic method of Linux system". Thank you for your reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!
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