问题
Everyday at sometime (mostly near the noon) all users of our sharepoint (2007) except "System Account" automatically get logged out and cannot login for about 30mins. I have no idea what possibly causes this situation. Can anyone help?
Thanks in advance.
Update: we use Active Directory for user authentication. At situations described above we can successfully login to Active Directory but it seems that SharePoint fails to login.
回答1:
When you say 'cannot login for about 30mins' do you mean that the site is inaccessible or users get an Access Denied page (and I mean the SharePoint one)? If the site is inaccessible then the SharePoint web server is probably down.
回答2:
On the 30 minutes what are the events in the Windows Logs of the server ?
What can be the cause : Maybe the primary DNS is filled in, and not the secondary. And maybe there is a reboot of the first DNS server ? Or maybe a network firewall or proxy is acting weird ?
来源：https://stackoverflow.com/questions/4992182/sharepoint-users-are-logged-out