Hi Christopher,
Is there anything else that you might suggest or observe? Are there any flags in the 1.11 branch (similar to "server.dedup.in_process_enabled") that might (need to) be set?
No
Is there any more information that I might be able to supply to assist?
What we do not understand and cannot explain is this "passdb_backend=unknown". It is like for some request instances there is a null pointer for the server … and typing this and seeing the logs, I note:
Could you please forward the null pointer exceptions. This is very important.
Dec 16 13:34:43 hostpack-nauthilus-01 nauthilus[71980]: time=2025-12-16T13:34:43.796Z level=DEBUG msg="LDAP free/busy state #1 is free" instance=nauthilus pool=auth debug_module=ldappool function=github.com/croessner/nauthilus/server/backend/ldappool.(*ldapPoolImpl).u> Dec 16 13:34:43 hostpack-nauthilus-01 nauthilus[71980]: time=2025-12-16T13:34:43.796Z level=DEBUG msg="LDAP free/busy state #2 is free" instance=nauthilus pool=auth debug_module=ldappool function=github.com/croessner/nauthilus/server/backend/ldappool.(*ldapPoolImpl).u> Dec 16 13:34:43 hostpack-nauthilus-01 nauthilus[71980]: time=2025-12-16T13:34:43.796Z level=DEBUG msg="LDAP free/busy state #3 is busy or closed" instance=nauthilus pool=auth debug_module=ldappool function=github.com/croessner/nauthilus/server/backend/ldappool.(*ldapP> Dec 16 13:34:43 hostpack-nauthilus-01 nauthilus[71980]: time=2025-12-16T13:34:43.796Z level=DEBUG msg="LDAP free/busy state #4 is busy or closed" instance=nauthilus pool=auth debug_module=ldappool function=github.com/croessner/nauthilus/server/backend/ldappool.(*ldapP> Dec 16 13:34:43 hostpack-nauthilus-01 nauthilus[71980]: time=2025-12-16T13:34:43.796Z level=DEBUG msg="LDAP free/busy state #5 is busy or closed" instance=nauthilus pool=auth debug_module=ldappool function=github.com/croessner/nauthilus/server/backend/ldappool.(*ldapP> Dec 16 13:34:43 hostpack-nauthilus-01 nauthilus[71980]: time=2025-12-16T13:34:43.796Z level=DEBUG msg="LDAP free/busy state #6 is busy or closed" instance=nauthilus pool=auth debug_module=ldappool function=github.com/croessner/nauthilus/server/backend/ldappool.(*ldapP> Dec 16 13:34:43 hostpack-nauthilus-01 nauthilus[71980]: time=2025-12-16T13:34:43.796Z level=DEBUG msg="LDAP free/busy state #7 is busy or closed" instance=nauthilus pool=auth debug_module=ldappool function=github.com/croessner/nauthilus/server/backend/ldappool.(*ldapP> Dec 16 13:34:43 hostpack-nauthilus-01 nauthilus[71980]: time=2025-12-16T13:34:43.796Z level=DEBUG msg="LDAP free/busy state #8 is busy or closed" instance=nauthilus pool=auth debug_module=ldappool function=github.com/croessner/nauthilus/server/backend/ldappool.(*ldapP> Dec 16 13:34:43 hostpack-nauthilus-01 nauthilus[71980]: time=2025-12-16T13:34:43.796Z level=DEBUG msg="State open connections" instance=nauthilus pool=auth needClosing=0 openConnections=2 idlePoolSize=2 debug_module=ldappool function=github.com/croessner/nauthilus/ser>
Could these "busy or closed" LDAP instances #3-#8 be causing the "unknown" backend?
I don’t think so, but of course I will investigate this.
What I see from the logs is that LDAP is telling you that it did not find the user: UserFound:false
Do you see LDAP-filter logs? If so, can you manually check if that filter works?
Kind regards
Christian
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