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Forum Discussion

VishnuGatla's avatar
VishnuGatla
Icon for Cumulonimbus rankCumulonimbus
Sep 29, 2017

Connection error: ssl_passthru:4015: not SSL (40)

Hi DC,   I am getting the following error for every second.   Sep 29 05:41:31 warning tmm1[12472]: 01260009:4: Connection error: ssl_passthru:4015: not SSL (40) Sep 29 05:41:33 warning tmm[12...
application delivery
LTM
jaikumar_f5's avatar
jaikumar_f5
Icon for Noctilucent rankNoctilucent
Oct 02, 2017

Can you search for the below in your /var/log/ltm

less /var/log/ltm* | grep "SSL Handshake failed for"

This might tell you which VS its failing for. This is an info log, so by default this would be captured in your ltm log file. In the event you dont find the correct VS, then you need to increase the SSL debug logging.

tmsh modify /sys db log.ssl.level value debug