I have a Ubuntu box, used for cifs file shares, that is using Samba. It is joined to an Active Directory Domain. We are using trusted domains. We have a pretty large AD infrastructure with many child domains. This box is joined to one of the child domains.
My issue is that I am constantly getting this error(see below) about every 10 seconds in the log.winbindd-dc-connect. The interesting thing is that the cifs actually work but it seems like the performance is being impacted. I do see that the CPU is constantly high on this machine. I think the log errors and the performance hit are related. Just wondering if anybody has ever seen this.
I am more of the Windows individual than Linux so my understanding of Samba is pretty limited. Trying to learn as I go. Thank you in advance.
[2017/03/20 17:26:22.225186, 0, pid=19851] ../source3/libsmb/cliconnect.c:1921(cli_session_setup_spnego_send) Kinit for xxxxxx to access email@example.com.LOCAL failed: Cannot contact any KDC for requested realm