A guide explains how to record TLS key information with SSLKEYLOGFILE and load it into Wireshark to inspect HTTP requests in captured, authorized HTTPS traffic.
The method described uses the SSLKEYLOGFILE environment variable to record TLS key information during a connection. That data can then be loaded into Wireshark to decrypt and inspect HTTP requests in captured HTTPS traffic.
Set up packet capture and key logging in a test environment before reproducing the issue. Inspect only systems and traffic you are authorized to access; decrypting a capture can expose sensitive content.
Load the key file in Wireshark’s TLS protocol settings and open the corresponding capture. Check whether the traffic now shows the HTTP requests needed for diagnosis. If it does not, confirm that the capture and keys belong to the same session.
Treat the key file like a credential: restrict access, do not share it, and securely remove it after analysis. If you use AI to study or apply this procedure, do not submit captures, keys, or identifying data; use synthetic or sanitized examples instead.