http://www.albahari.com/threading/

threading.pdf (1.16 mb)

You can use the following code to determine is a user is passing in the correct username and password.

try
{
    using (PrincipalContext pc = new PrincipalContext(ContextType.Domain, "SERVERNAME"))
    {
        bool isValid = pc.ValidateCredentials("USERNAME", "PASSWORD");
    }
}

Get the "Boot from secondary plex" message when booting after recovering from a mirrored drive?  Use msconfig, from Start-Run, to edit the boot options.

http://weblogs.asp.net/scottgu/archive/2010/07/16/code-first-development-with-entity-framework-4.aspx

http://weblogs.asp.net/scottgu/archive/2010/07/23/entity-framework-4-code-first-custom-database-schema-mapping.aspx

http://msdn.microsoft.com/en-us/data/cc546554.aspx

To “migrate/compare” views from one database to the other, you can get the create view statement directly from the database.

 http://msdn.microsoft.com/en-us/library/ms345522.aspx
http://msdn.microsoft.com/en-us/library/ms345522.aspx#_FAQ35

SELECT * FROM sys.sql_modules

SELECT definition FROM sys.sql_modules WHERE object_id = OBJECT_ID('<view name>');

SELECT V1.name,M1.definition FROM sys.views AS V1
      LEFT OUTER JOIN sys.sql_modules AS M1 ON M1.object_id=V1.object_id

Class address ranges:
               Start        End               # Networks       # Hosts
     Class A = 1.0.0.0   -> 127.255.255.255 ->       128 -> 16,777,216
     Class B = 128.0.0.0 -> 191.255.255.255 ->    16,384 ->     65,536
     Class C = 192.0.1.0 -> 223.255.255.255 -> 2,097,152 ->        256

Reserved address ranges for private use (non-routed)
     10.0.0.0    -> 10.255.255.255
     172.16.0.0  -> 172.31.255.255
     192.168.0.0 -> 192.168.255.255

Other reserved addresses:
     127.0.0.0                 loopback and IPC on the local host
     224.0.0.0 -> 239.255.255.255     multicast addresses

Netmask          Netmask (binary)                     CIDR         Usable IPs        Total IP Addresses
_____________________________________________________________________________________________________
255.255.255.255  11111111.11111111.11111111.11111111  /32     single addr           1    
255.255.255.254  11111111.11111111.11111111.11111110  /31      Unuseable            2
255.255.255.252  11111111.11111111.11111111.11111100  /30            2              4
255.255.255.248  11111111.11111111.11111111.11111000  /29            6              8
255.255.255.240  11111111.11111111.11111111.11110000  /28           14             16
255.255.255.224  11111111.11111111.11111111.11100000  /27           30             32
255.255.255.192  11111111.11111111.11111111.11000000  /26           62             64
255.255.255.128  11111111.11111111.11111111.10000000  /25          126            128
255.255.255.0    11111111.11111111.11111111.00000000  /24          254            256      Class C
                                                                                 
255.255.254.0    11111111.11111111.11111110.00000000  /23          510         512    2 Class C
255.255.252.0    11111111.11111111.11111100.00000000  /22         1022          1024    4 Class C
255.255.248.0    11111111.11111111.11111000.00000000  /21         2046         2048    8 Class C
255.255.240.0    11111111.11111111.11110000.00000000  /20         4094         4096   16 Class C
255.255.224.0    11111111.11111111.11100000.00000000  /19         8190        8192   32 Class C
255.255.192.0    11111111.11111111.11000000.00000000  /18        16382       16384   64 Class C
255.255.128.0    11111111.11111111.10000000.00000000  /17        32766       32768  128 Class C
255.255.0.0      11111111.11111111.00000000.00000000  /16        65534       65536      Class B
                                                             
255.254.0.0      11111111.11111110.00000000.00000000  /15       131070        131072    2 Class B
255.252.0.0      11111111.11111100.00000000.00000000  /14       262142        262144    4 Class B
255.248.0.0      11111111.11111000.00000000.00000000  /13       524286        524288    8 Class B
255.240.0.0      11111111.11110000.00000000.00000000  /12      1048574     1048576   16 Class B
255.224.0.0      11111111.11100000.00000000.00000000  /11      2097150     2097152   32 Class B
255.192.0.0      11111111.11000000.00000000.00000000  /10      4194302     4194304   64 Class B
255.128.0.0      11111111.10000000.00000000.00000000  /9       8388606     8388608  128 Class B
255.0.0.0        11111111.00000000.00000000.00000000  /8      16777214    16777216      Class A
 
254.0.0.0        11111110.00000000.00000000.00000000  /7
252.0.0.0        11111100.00000000.00000000.00000000  /6
248.0.0.0        11111000.00000000.00000000.00000000  /5
240.0.0.0        11110000.00000000.00000000.00000000  /4
224.0.0.0        11100000.00000000.00000000.00000000  /3
192.0.0.0        11000000.00000000.00000000.00000000  /2
128.0.0.0        10000000.00000000.00000000.00000000  /1
0.0.0.0          00000000.00000000.00000000.00000000  /0   IP space

It became necessary to get a listing of all the Active Directory servers in the network.  The following VB script did just the job.  The entire article is at TechNet.

Save it as a file, for example, listAD.vbs and run it from the command line C:\>cscript listAD.vbs.

Technet Blog Entry

On Error Resume Next

Set objRootDSE = GetObject("LDAP://RootDSE")
strConfigurationNC = objRootDSE.Get("configurationNamingContext")
 
strSitesContainer = "LDAP://cn=Sites," & strConfigurationNC
Set objSitesContainer = GetObject(strSitesContainer)
objSitesContainer.Filter = Array("site")
 
For Each objSite In objSitesContainer
    Wscript.Echo objSite.CN
    strSiteName = objSite.Name
    strServerPath = "LDAP://cn=Servers," & strSiteName & ",cn=Sites," & _
        strConfigurationNC
    Set colServers = GetObject(strServerPath)
 
    For Each objServer In colServers
        WScript.Echo vbTab & objServer.CN
    Next
    Wscript.Echo
Next

The following will create a temp table and use an undocumented stored procedure to run a command on each table in the database.  The command is another stored procedure that will get the space used by the data and index for the tables.

You can query the temp table to calculate the sizes.

CREATE TABLE #T1(
    TableName varchar(128),
    Rows varchar(11),
    Reserved varchar(18),
    DataSize varchar(18),
    IndexSize varchar(18),
    Unused varchar(18)
);
EXEC sp_MSforeachtable @command1=""INSERT #T1 EXEC sp_spaceused '?'"";
SELECT TableName,Rows,DataSize,IndexSize FROM #T1;
DROP TABLE #T1;

I stumbled across this .NET PDF library while looking for a way to automatically generate signs for a project I'm working on.

http://www.paologios.com/

It looks like they redid the interface so this site is much easier to use now.

http://www.openclipart.org/