How can I enable debug logs on the server?

I integrating login with OIDC but it hasn’t worked yet. I used command “ferrumgate --all-logs” to view log and just met logs with info and error level. How can I enable debug logs level?
P/S: Sorry if my English is terrible.

please try
edit /etc/ferrumgate/env file
set loglevel to debug
and restart with ferrumgate --restart
probably this will not show more logs.

for solving your problem, please watch rest service logs
type on ferrumgate server
docker ps | grep rest
then find id of docker container
docker logs -f $ID

Thank you. I followed your instructions and found the debug log.