I followed these instructions the other day to set up a Samba share with AD authentication on Ubuntu.
It worked fine, but now, whenever I do some kind of operation with users or groups, the system slows to a crawl and seems to lock up (web server won't respond, for example).
The only thing I can thing of is that when I tab part of a user/groupname, it's searching the entire AD (which is quite large) for matches. Is this what's happening? If it is, is there any way I can stop this? If not, what's going on? The only major change I made was just following the instructions linked to above.