Forum Discussion

dirken's avatar
dirken
Icon for Nimbostratus rankNimbostratus
Sep 07, 2021

log entry cut off - max size for variable or log entry?

I am logging the Java Web Token (JWT) during an Oauth login. The iRule works in general, but the JWT is cut off after 890 characters. Cannot find any reason for it, as log entries and variables shou...
application delivery
iRules
Dario_Garrido's avatar
Dario_Garrido
Icon for MVP rankMVP
Sep 07, 2021

Hello Dirken.

 

Take into account that log entries have a maximum size per message.

"The syslog facility is limited to logging 1024 bytes per request. Longer strings will be truncated."

REF - https://clouddocs.f5.com/api/irules/log.html

 

Possible solutions:

  1. Use HSL (https://clouddocs.f5.com/api/irules/HSL.html)
  2. Capture traffic using tcpdump and decrypt it later on

 

Regards,

Dario.