I have samba 4.0.6 as AD DC and fileserver on ubuntu 12.04 in a Mac environment. After some time the OS X clients will not connect to the server with the error message: "The file server will not allow any aditional users to log on. Try to connect again later. Restarting samba service fixes the problem temporarely.
The server is used in a little company with only 5 users all using OS X and at the time connecting using smb.
I've added "max connections = 20000" in smb.conf (as shown in end of this post), but it didn't have any effect.
# testparm smb.conf Load smb config files from smb.conf rlimit_max: increasing rlimit_max (1024) to minimum Windows limit (16384) Unknown parameter encountered: "server role" Ignoring unknown parameter "server role" Unknown parameter encountered: "dns forwarder" Ignoring unknown parameter "dns forwarder" Processing section "[Arkiv]" Processing section "[Internt]" Processing section "[Kunder]" Processing section "[Programvare]" Processing section "[Ressurser]" Loaded services file OK. Server role: ROLE_STANDALONE Press enter to see a dump of your service definitions [global] workgroup = KONVOI realm = KONVOI.LAN template shell = /bin/bash winbind enum users = Yes winbind enum groups = Yes winbind use default domain = Yes idmap_ldb:use rfc2307 = Yes idmap config * : backend = tdb [Kunder] comment = Aktive prosjekter path = /mnt/data/Kunder read only = No max connections = 20000