F5N4
NGINX Troubleshoot (F5N4)
Part of F5 Certified Administrator, NGINX
Online proctored via Certiverse (camera access required) or test-center proctored via Pearson VUE; English; Administrator NGINX level. One of the four exams (taken in any order) that earn F5 Certified Administrator, NGINX (F5-CA, NGINX); the certification is based on NGINX Open Source Software (OSS).
Independent study aid built from the public exam blueprint. Not affiliated with, authorized by, or endorsed by F5. Objectives are transcribed and mapped by hand, so this page may contain mistakes or may have fallen behind the vendor's current material: exam objectives, versions, numbering and availability all change without notice. Treat F5's own certification portal as the source of truth and verify against it before you book anything.
EXAM: Troubleshooting
1.1 Demonstrate how to stop, start, and reload NGINX binary
What to know:- Describe how to send signals to the NGINX process
- Describe the difference between a reload and a stop/start
- Describe how to test a new configuration before applying it
1.2 Troubleshoot basic use cases
What to know:- Interpret logs
- Identify start up failures
- Describe how to deal with HTTP error codes
- Describe how to troubleshoot various response
- Describe how to troubleshoot use cases with multiple virtual hosts, multiple ports, and default servers
- Describe how to troubleshoot location precedence and add_header inheritance
- Describe how to troubleshoot client and server connections
- Describe basic SELinux use cases
On this site: Reloading NGINX without dropping traffic, and the first four things to check when it breaks, NGINX location matching: why the block you expected is not the one that ranTools: curl-command-builder1.3 Troubleshoot TLS security settings
What to know:- Identify TLS connection errors
- Describe how to troubleshoot invalid certificates
On this site: Sertifika doğrulaması aslında nasıl çalışır, Certificate validity windows: notBefore, notAfter, and renewal lead timeTools: x509
Public sources, used in good faith
These guides are independent study aids built from publicly available material: published exam blueprints, official product documentation, and vendor training catalogues. Product names, exam codes, and trademarks belong to their owners and are used only to identify the subject being taught. This site is not affiliated with or endorsed by any vendor named here. If you hold rights in material published on this page and believe it should be removed or corrected, please send the exact URL and a short note on the issue through the contact page; requests are reviewed promptly and in good faith. Read the full disclaimer →