Friday, March 9, 2012

LocalAdmins, LocalSystem, and the sysadmin role

During SQL Server 2005 installation, several logins are added to the
sysadmin role including:
- local administrator group (BUILTIN\Administrators),
- Local System (NT AUTHORITY\SYSTEM), and
- sa.
A common hardening practice is to later remove the local administrator group
from the sysadmin role, thereby separating server administration from DBMS
administration. However, I don't recall ever seeing the recommendation to
also remove the LocalSystem account from the sysadmin role.
Has anyone seen recommendations to remove BOTH local administrators and
LocalSystem from the sysadmin role for hardening purposes, and - if this
were to be done - what are the consequences?
Thanks in advance (and apologies for re-posting in hopes of a response),
DrewHello Drew,
Yes, generally we remove local administrator group from sysadmin role which
actually prevent accessing sql server who is having system admini privilages
on the server.
Now personally I prefer not to remove Local System as I was facing problem
while using the full-text search. Please refer the following Microsoft
article.
http://support.microsoft.com/kb/317746
Hope this will help you.
Regards,
MB
"DHamre" <dhamre@.comcast.net> wrote in message
news:%23Au%23cyMMHHA.3424@.TK2MSFTNGP02.phx.gbl...
> During SQL Server 2005 installation, several logins are added to the
> sysadmin role including:
> - local administrator group (BUILTIN\Administrators),
> - Local System (NT AUTHORITY\SYSTEM), and
> - sa.
> A common hardening practice is to later remove the local administrator
> group from the sysadmin role, thereby separating server administration
> from DBMS administration. However, I don't recall ever seeing the
> recommendation to also remove the LocalSystem account from the sysadmin
> role.
> Has anyone seen recommendations to remove BOTH local administrators and
> LocalSystem from the sysadmin role for hardening purposes, and - if this
> were to be done - what are the consequences?
> Thanks in advance (and apologies for re-posting in hopes of a response),
> Drew
>

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