Download e-book for iPad: DevOps Troubleshooting Linux Server Best Practices by Kyle Rankin

By Kyle Rankin

ISBN-10: 0321832043

ISBN-13: 9780321832047

DevOps can assist builders, QAs, and admins interact to unravel Linux server difficulties way more quickly, considerably enhancing IT functionality, availability, and potency. to realize those advantages, notwithstanding, crew individuals want universal troubleshooting abilities and practices. In DevOps Troubleshooting: Linux Server most sensible Practices , award-winning Linux specialist Kyle Rankin brings jointly all of the standardized, repeatable options your staff must cease finger-pointing, collaborate successfully, and speedy remedy almost any Linux server challenge. Rankin walks you thru utilizing DevOps innovations to troubleshoot every little thing from boot mess ups and corrupt disks to misplaced e-mail and downed web pages. You’ll grasp critical talents for diagnosing high-load structures and community difficulties in construction environments.

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Sample text

When a kernel or distribution update goes badly, it’s good to have all the skills you need to bring the system back up yourself. The Linux Boot Process Chapter 1 mentioned that if you want to be good at troubleshooting, it’s important that you understand how systems work. That philosophy definitely applies to troubleshooting boot problems, especially since they can have so many different causes. The BIOS The very first system involved in the boot process is the BIOS (Basic Input Output System).

If your server is not on the network and you type “server not on network” into a search engine, you probably won’t get very helpful results. Once you do some troubleshooting steps on your own to narrow down the issue and have a clearer understanding of the problem, you’ll be able to use specific, targeted search queries that very well could help you solve your problem. I’ve found the Internet to be most useful when troubleshooting problems that include a very specific error code or phrase. Error codes that describe a specific issue can be handy because they are simple to search for even if you don’t understand what the error code means.

It’s great to talk about and document troubleshooting techniques and procedures, but you must also trace back to the root cause. It’s true that it takes extra time and effort to pore through logs to trace the root cause once the problem goes away. Many times a team will go only as far as it takes to describe the symptoms and what they did to make the problem go away. These are often the same teams that only solve problems by rebooting servers or services. If you don’t isolate a root cause, you are probably going to see the same problem again and again.

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DevOps Troubleshooting Linux Server Best Practices by Kyle Rankin

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