http://blogs.technet.com/vipulshah/archive/tags/Guest+User+in+SQL+Server/default.aspxTags: Guest User in SQL Serveren-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.technet.com/vipulshah/archive/2007/08/15/useful-information-about-guest-account-in-sql-server.aspxThu, 16 Aug 2007 00:26:00 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:1760344vishah0http://blogs.technet.com/vipulshah/comments/1760344.aspxhttp://blogs.technet.com/vipulshah/commentrss.aspx?PostID=1760344<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN style="FONT-SIZE: 8.5pt; COLOR: black; FONT-FAMILY: 'Verdana','sans-serif'"><A href="http://msdn2.microsoft.com/en-us/library/ms190928.aspx"><SPAN style="TEXT-DECORATION: none; text-underline: none"><?xml:namespace prefix = v ns = "urn:schemas-microsoft-com:vml" /><v:shapetype id=_x0000_t75 stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" o:preferrelative="t" o:spt="75" coordsize="21600,21600"><v:stroke joinstyle="miter"></v:stroke><v:formulas><v:f eqn="if lineDrawn pixelLineWidth 0"></v:f><v:f eqn="sum @0 1 0"></v:f><v:f eqn="sum 0 0 @1"></v:f><v:f eqn="prod @2 1 2"></v:f><v:f eqn="prod @3 21600 pixelWidth"></v:f><v:f eqn="prod @3 21600 pixelHeight"></v:f><v:f eqn="sum @0 0 1"></v:f><v:f eqn="prod @6 1 2"></v:f><v:f eqn="prod @7 21600 pixelWidth"></v:f><v:f eqn="sum @8 21600 0"></v:f><v:f eqn="prod @7 21600 pixelHeight"></v:f><v:f eqn="sum @10 21600 0"></v:f></v:formulas><v:path o:connecttype="rect" gradientshapeok="t" o:extrusionok="f"></v:path><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:lock aspectratio="t" v:ext="edit"></o:lock></v:shapetype><v:shape id=ctl00_LibFrame_ctl01img style="WIDTH: 12pt; HEIGHT: 12pt" alt="guest user" type="#_x0000_t75" o:spid="_x0000_i1025"><v:imagedata o:href="cid:image001.gif@01C7C7B5.1F1A8C30" src="file:///C:\Users\vishah\AppData\Local\Temp\msohtmlclip1\01\clip_image001.gif"></v:imagedata></v:shape></SPAN><SPAN style="BACKGROUND: #3399ff; COLOR: white">guest</SPAN> user</A><o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0in 0in 11.25pt"><A class="" name=sectionToggle0></A><SPAN style="FONT-SIZE: 8.5pt; COLOR: blue; FONT-FAMILY: 'Verdana','sans-serif'">When a database is created, the database includes a </SPAN><SPAN style="mso-bookmark: sectionToggle0"></SPAN><B><SPAN style="FONT-SIZE: 8.5pt; BACKGROUND: #3399ff; COLOR: white; FONT-FAMILY: 'Verdana','sans-serif'">guest</SPAN></B><SPAN style="FONT-SIZE: 8.5pt; COLOR: blue; FONT-FAMILY: 'Verdana','sans-serif'"> user by default. Permissions granted to the </SPAN><B><SPAN style="FONT-SIZE: 8.5pt; BACKGROUND: #3399ff; COLOR: white; FONT-FAMILY: 'Verdana','sans-serif'">guest</SPAN></B><SPAN style="FONT-SIZE: 8.5pt; COLOR: blue; FONT-FAMILY: 'Verdana','sans-serif'"> user are inherited by users that do not have a user </SPAN><SPAN style="FONT-SIZE: 8.5pt; BACKGROUND: #3399ff; COLOR: white; FONT-FAMILY: 'Verdana','sans-serif'">account</SPAN><SPAN style="FONT-SIZE: 8.5pt; COLOR: blue; FONT-FAMILY: 'Verdana','sans-serif'"> </SPAN><SPAN style="FONT-SIZE: 8.5pt; BACKGROUND: #3399ff; COLOR: white; FONT-FAMILY: 'Verdana','sans-serif'">in</SPAN><SPAN style="FONT-SIZE: 8.5pt; COLOR: blue; FONT-FAMILY: 'Verdana','sans-serif'"> the database.<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0in 0in 11.25pt"><SPAN style="FONT-SIZE: 8.5pt; COLOR: blue; FONT-FAMILY: 'Verdana','sans-serif'">The </SPAN><B><SPAN style="FONT-SIZE: 8.5pt; BACKGROUND: #3399ff; COLOR: white; FONT-FAMILY: 'Verdana','sans-serif'">guest</SPAN></B><SPAN style="FONT-SIZE: 8.5pt; COLOR: blue; FONT-FAMILY: 'Verdana','sans-serif'"> user cannot be dropped, but it can be disabled by revoking its CONNECT permission. The CONNECT permission can be revoked by executing REVOKE CONNECT FROM </SPAN><SPAN style="FONT-SIZE: 8.5pt; BACKGROUND: #3399ff; COLOR: white; FONT-FAMILY: 'Verdana','sans-serif'">GUEST</SPAN><SPAN style="FONT-SIZE: 8.5pt; COLOR: blue; FONT-FAMILY: 'Verdana','sans-serif'"> within any database other than <B>master</B> or <B>tempdb</B>.<o:p></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0in 0in 0pt"><o:p><FONT face=Calibri size=3>&nbsp;</FONT></o:p></P> <P class=MsoNormal style="MARGIN: 0in 0in 0pt"><o:p><FONT face=Calibri size=3>&nbsp;</FONT></o:p></P> <P class=MsoNormal style="MARGIN: 0in 0in 0pt"><A href="http://msdn2.microsoft.com/en-us/library/aa905195(SQL.80).aspx"><FONT face=Calibri size=3>http://msdn2.microsoft.com/en-us/library/aa905195(SQL.80).aspx</FONT></A></P> <P class=MsoNormal style="MARGIN: 0in 0in 0pt"><o:p><FONT face=Calibri size=3>&nbsp;</FONT></o:p></P> <P class=MsoNormal style="MARGIN: 0in 0in 0pt"><A href="http://msdn2.microsoft.com/en-us/library/ms190928.aspx"><FONT face=Calibri size=3>http://msdn2.microsoft.com/en-us/library/ms190928.aspx</FONT></A></P><img src="http://blogs.technet.com/aggbug.aspx?PostID=1760344" width="1" height="1">Guest User in SQL Server