January 12, 2010 at 12:05 am
Hi,
Small security problem.
I have done the restore from server1 to server2.
and ran the sp_change_users_login 'report' to check for orphan users.
I expected some username(s) to be displayed in the output but don't know why no users
are listed out in the output. Expect the user "dbo". Why is it so?
This is what i have done.
I am migrating the datbases from SQL server 2000 with Service Pack 4 to
SQL 2008 Standard Edition with SP1. I have taken the backups from 2000 sql server and
restored in SQL 2008. Once restores are done. I have executed the below script to generate the logins
USE master
GO
IF OBJECT_ID ('sp_hexadecimal') IS NOT NULL
DROP PROCEDURE sp_hexadecimal
GO
CREATE PROCEDURE sp_hexadecimal
@binvalue varbinary(256),
@hexvalue varchar(256) OUTPUT
AS
DECLARE @charvalue varchar(256)
DECLARE @i int
DECLARE @length int
DECLARE @hexstring char(16)
SELECT @charvalue = '0x'
SELECT @i = 1
SELECT @length = DATALENGTH (@binvalue)
SELECT @hexstring = '0123456789ABCDEF'
WHILE (@i <= @length)
BEGIN
DECLARE @tempint int
DECLARE @firstint int
DECLARE @secondint int
SELECT @tempint = CONVERT(int, SUBSTRING(@binvalue,@i,1))
SELECT @firstint = FLOOR(@tempint/16)
SELECT @secondint = @tempint - (@firstint*16)
SELECT @charvalue = @charvalue +
SUBSTRING(@hexstring, @firstint+1, 1) +
SUBSTRING(@hexstring, @secondint+1, 1)
SELECT @i = @i + 1
END
SELECT @hexvalue = @charvalue
GO
IF OBJECT_ID ('sp_help_revlogin_2000_to_2005') IS NOT NULL
DROP PROCEDURE sp_help_revlogin_2000_to_2005
GO
CREATE PROCEDURE sp_help_revlogin_2000_to_2005
@login_name sysname = NULL,
@include_db bit = 0,
@include_role bit = 0
AS
DECLARE @name sysname
DECLARE @xstatus int
DECLARE @binpwd varbinary (256)
DECLARE @dfltdb varchar (256)
DECLARE @txtpwd sysname
DECLARE @tmpstr varchar (256)
DECLARE @SID_varbinary varbinary(85)
DECLARE @SID_string varchar(256)
IF (@login_name IS NULL)
DECLARE login_curs CURSOR STATIC FOR
SELECT sid, [name], xstatus, password, isnull(db_name(dbid), 'master')
FROM master.dbo.sysxlogins
WHERE srvid IS NULL AND
[name] <> 'sa'
ELSE
DECLARE login_curs CURSOR FOR
SELECT sid, [name], xstatus, password, isnull(db_name(dbid), 'master')
FROM master.dbo.sysxlogins
WHERE srvid IS NULL AND
[name] = @login_name
OPEN login_curs
FETCH NEXT FROM login_curs INTO @SID_varbinary, @name, @xstatus, @binpwd, @dfltdb
IF (@@fetch_status = -1)
BEGIN
PRINT 'No login(s) found.'
CLOSE login_curs
DEALLOCATE login_curs
RETURN -1
END
SET @tmpstr = '/* sp_help_revlogin script '
PRINT @tmpstr
SET @tmpstr = '** Generated '
+ CONVERT (varchar, GETDATE()) + ' on ' + @@SERVERNAME + ' */'
PRINT @tmpstr
PRINT ''
PRINT ''
PRINT ''
PRINT '/***** CREATE LOGINS *****/'
WHILE @@fetch_status = 0
BEGIN
PRINT ''
SET @tmpstr = '-- Login: ' + @name
PRINT @tmpstr
IF (@xstatus & 4) = 4
BEGIN -- NT authenticated account/group
IF (@xstatus & 1) = 1
BEGIN -- NT login is denied access
SET @tmpstr = '' --'EXEC master..sp_denylogin ''' + @name + ''''
PRINT @tmpstr
END
ELSE
BEGIN -- NT login has access
SET @tmpstr = 'IF NOT EXISTS (SELECT * FROM sys.server_principals WHERE [name] = ''' + @name + ''')'
PRINT @tmpstr
SET @tmpstr = CHAR(9) + 'CREATE LOGIN [' + @name + '] FROM WINDOWS'
PRINT @tmpstr
END
END
ELSE
BEGIN -- SQL Server authentication
EXEC sp_hexadecimal @SID_varbinary, @SID_string OUT
IF (@binpwd IS NOT NULL)
BEGIN -- Non-null password
EXEC sp_hexadecimal @binpwd, @txtpwd OUT
SET @tmpstr = 'CREATE LOGIN [' + @name + '] WITH PASSWORD=' + @txtpwd + ' HASHED'
END
ELSE
BEGIN -- Null password
SET @tmpstr = 'CREATE LOGIN [' + @name + '] WITH PASSWORD='''''
END
SET @tmpstr = @tmpstr + ', CHECK_POLICY=OFF, SID=' + @SID_string
PRINT @tmpstr
END
FETCH NEXT FROM login_curs INTO @SID_varbinary, @name, @xstatus, @binpwd, @dfltdb
END
IF @include_db = 1
BEGIN
PRINT ''
PRINT ''
PRINT ''
PRINT '/***** SET DEFAULT DATABASES *****/'
FETCH FIRST FROM login_curs INTO @SID_varbinary, @name, @xstatus, @binpwd, @dfltdb
WHILE @@fetch_status = 0
BEGIN
PRINT ''
SET @tmpstr = '-- Login: ' + @name
PRINT @tmpstr
SET @tmpstr = 'ALTER LOGIN [' + @name + '] WITH DEFAULT_DATABASE=[' + @dfltdb + ']'
PRINT @tmpstr
FETCH NEXT FROM login_curs INTO @SID_varbinary, @name, @xstatus, @binpwd, @dfltdb
END
END
IF @include_role = 1
BEGIN
PRINT ''
PRINT ''
PRINT ''
PRINT '/***** SET SERVER ROLES *****/'
FETCH FIRST FROM login_curs INTO @SID_varbinary, @name, @xstatus, @binpwd, @dfltdb
WHILE @@fetch_status = 0
BEGIN
PRINT ''
SET @tmpstr = '-- Login: ' + @name
PRINT @tmpstr
IF @xstatus &16 = 16 -- sysadmin
BEGIN
SET @tmpstr = 'exec master.dbo.sp_addsrvrolemember @loginame=''' + @name + ''', @rolename=''sysadmin'''
PRINT @tmpstr
END
IF @xstatus &32 = 32 -- securityadmin
BEGIN
SET @tmpstr = 'exec master.dbo.sp_addsrvrolemember @loginame=''' + @name + ''', @rolename=''securityadmin'''
PRINT @tmpstr
END
IF @xstatus &64 = 64 -- serveradmin
BEGIN
SET @tmpstr = 'exec master.dbo.sp_addsrvrolemember @loginame=''' + @name + ''', @rolename=''serveradmin'''
PRINT @tmpstr
END
IF @xstatus &128 = 128 -- setupadmin
BEGIN
SET @tmpstr = 'exec master.dbo.sp_addsrvrolemember @loginame=''' + @name + ''', @rolename=''setupadmin'''
PRINT @tmpstr
END
IF @xstatus &256 = 256 --processadmin
BEGIN
SET @tmpstr = 'exec master.dbo.sp_addsrvrolemember @loginame=''' + @name + ''', @rolename=''processadmin'''
PRINT @tmpstr
END
IF @xstatus &512 = 512 -- diskadmin
BEGIN
SET @tmpstr = 'exec master.dbo.sp_addsrvrolemember @loginame=''' + @name + ''', @rolename=''diskadmin'''
PRINT @tmpstr
END
IF @xstatus &1024 = 1024 -- dbcreator
BEGIN
SET @tmpstr = 'exec master.dbo.sp_addsrvrolemember @loginame=''' + @name + ''', @rolename=''dbcreator'''
PRINT @tmpstr
END
IF @xstatus &4096 = 4096 -- bulkadmin
BEGIN
SET @tmpstr = 'exec master.dbo.sp_addsrvrolemember @loginame=''' + @name + ''', @rolename=''bulkadmin'''
PRINT @tmpstr
END
FETCH NEXT FROM login_curs INTO @SID_varbinary, @name, @xstatus, @binpwd, @dfltdb
END
END
CLOSE login_curs
DEALLOCATE login_curs
RETURN 0
GO
exec sp_help_revlogin_2000_to_2005 @login_name=NULL, @include_db=1, @include_role=1
GO
Reference Link : http://support.microsoft.com/kb/246133/
Method 2
Question(s)
1. How the logins got automatically mapped? How sid(s) got Mapped? Normally, we use auto_fix/update_one as parameters to sp_change_users_login.
2. Does we get any problems while mapping the logins if SQL 2000 and SQL 2008 are in different domains. If so, what kind of errors we can expect and how can we resolve them.
3. Why "dbo" user is being dispalyed as orphan users? Because we cannot create a login saying "dbo". right? Then why it is showing "dbo".
Correct me if am wrong?
4. I have restored 10 databases, out of 10 , for 4 databases am getting "dbo" as orphan user. How to fix this?
Thanks in Advance!
January 12, 2010 at 2:21 am
Changing the database owner to sa solved the "dbo" user problem
USE database
EXEC sp_changedbowner 'sa'
GO
January 14, 2010 at 12:15 am
mahesh.vsp (1/12/2010)
Changing the database owner to sa solved the "dbo" user problemUSE database
EXEC sp_changedbowner 'sa'
GO
Do you still need answers to your questions from the original post, or did you resolve those as well?
Jason...AKA CirqueDeSQLeil
_______________________________________________
I have given a name to my pain...MCM SQL Server, MVP
SQL RNNR
Posting Performance Based Questions - Gail Shaw[/url]
Learn Extended Events
January 14, 2010 at 12:36 am
Hi Jason,
Am looking for answer for below two questions
1. How the logins got automatically mapped? How sid(s) got Mapped? Normally, we use auto_fix/update_one as parameters to sp_change_users_login.
2. Do we get any problems while mapping the logins if SQL 2000 and SQL 2008 are in different domains. If so, what kind of errors we can expect and how can we resolve them.
Thanks for Reminding me 🙂
January 14, 2010 at 8:39 am
mahesh.vsp (1/14/2010)
Hi Jason,Am looking for answer for below two questions
1. How the logins got automatically mapped? How sid(s) got Mapped? Normally, we use auto_fix/update_one as parameters to sp_change_users_login.
2. Do we get any problems while mapping the logins if SQL 2000 and SQL 2008 are in different domains. If so, what kind of errors we can expect and how can we resolve them.
Thanks for Reminding me 🙂
It looks like you ran sp_help_revlogin. That proc is used to transfer logins.
If they are in different domains without a trust relationship, then you will encounter problems. If the trust is established, and proper domain is qualified when the accounts were created in SQL, then you should have NO problems.
Jason...AKA CirqueDeSQLeil
_______________________________________________
I have given a name to my pain...MCM SQL Server, MVP
SQL RNNR
Posting Performance Based Questions - Gail Shaw[/url]
Learn Extended Events
January 15, 2010 at 7:48 pm
Thanks Jason.
January 15, 2010 at 9:28 pm
You're welcome
Jason...AKA CirqueDeSQLeil
_______________________________________________
I have given a name to my pain...MCM SQL Server, MVP
SQL RNNR
Posting Performance Based Questions - Gail Shaw[/url]
Learn Extended Events
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