Symptoms
NTLM authentication fails with the error:
RPC exception: Failed to verify checksum of the packet.
Impact
User authentication fails.
Conditions
-- Start nlad process with 'encryption'.
-- Configure a user, and map that user to a huge number of groups.
-- Configure NTLM front-end authentication.
Workaround
1. Run the 'nlad' process with '-encrypt no' in the file /etc/bigstart/startup/nlad.
2. Disable encryption for nlad:
# vim /etc/bigstart/startup/nlad
change:
exec /usr/bin/${service} -use-log-tag 01620000
to:
exec /usr/bin/${service} -use-log-tag 01620000 -encrypt no
3. Restart nlad to make the change effective, and to force the schannel to be re-established:
# bigstart restart nlad
