What is ARIN

Hi People,



The American Registry for Internet Numbers (ARIN) is a nonprofit corporation that serves users of Internet number resources, such as Internet Service Providers, governments, and end-users in its region. ARIN's service region includes Canada, the United States, and several islands in the Caribbean Sea and North Atlantic Ocean.

ARIN is one of five Regional Internet Registries (RIRs) worldwide that provide Internet number resource services to all regions of the globe.


Can know more about Internet Numbers visit


http://whois.arin.net/rest/net/NET-66-220-144-0-1/pft



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Sysprep in VMware, while cloning VMs

Hi People

We all know and familiar with sysprep - System Preparation executable file

Sysprep Executable :-

Sysprep.exe is the main program that calls other executable files that prepare the Windows installation. Sysprep.exe is located in the %WINDIR%\system32\sysprep directory on all installations. Sysprep must always be run from the %WINDIR%\system32\sysprep directory and must run on the version of Windows with which it was installed.
Above is the little Information of sysprep, which you can use in VMware, when cloning VMs

Why do we require sysprep While cloning VMs:-


1. You can set Computer Name

2. You can set Administrator password, for post installation task

3. SID is created separately, Because in VM cloning, it does take the same SID, which in future conflicts with the original VM

Long story in short :- It allows you for custom installation, where you can specify IP address & other required details of system, as per your choice.

You can browse some more details, how to use this in VMware, It really works

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Creating a WinSSHD User For UNIX Access

Hi People,

 Creating a WinSSHD user will allow Unix user to communicate with Windows system , using password less autehntication.

This requires following things

1. WinSHHD software
2. RSA Key generated by Unix
3. Existing Unix user
4. Path of Root directory

Please find thge steps below as how to configure WinSSHD software on Windows System

1. Log into server


2. Launch WinSSHD Control Panel (you can find this by clicking START and using search)

3. Under Settings click Open Easy Settings

4. Go to Tab #3 Virtual accounts

5. Click Add

6. Under Virtual Account Name enter the Unix Name

7. Click Public Keys

8. On new window that opens, click Import

9. Browse to SSH key click OK

10. Click Close to close out the Public Keys window

11. Uncheck “Allow Terminal”

12. To the right of Virtual Filesystem Layout select Limit to root directory

13. A new field will appear “Root Directory” enter the path provided by client.

14. Click OK to close out Account Add window

15. Click Save Changes to close out Easy Settings window

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Robocopy Command

Hi People

When it comes to copy data from source to destination, we have several commands and utilities.
Like xcopy, robocopy, copy and etc.

One of these command is robocopy,
Command Applies To: Windows 7, Windows Server 2008, Windows Server 2008 R2
And it works like any thing, if the data size is less than 100 GB, I would suggest this command


Command options are

/Z : Copy files in restartable mode (survive network glitch).
/R:n : Number of Retries on failed copies - default is 1 million.
/W:n : Wait time between retries - default is 30 seconds.
/COPYALL : Copy ALL file info (equivalent to /COPY:DATSOU).
/E : Copy Subfolders, including Empty Subfolders.
/LOG:file : Output status to LOG file (overwrite existing log).
/FP : Include Full Pathname of files in the output.
/TEE : Output to console window, as well as the log file.
/V : Produce Verbose output log, showing skipped files.
/ETA : Show Estimated Time of Arrival of copied files

Simple command syntax would be with example would be  :-



ROBOCOPY E:\ G:\ /ETA /E /Z /V /R:0 /W:0

How to find LDAP server details in your domain

Hello People

We all have LDAP configured in Infastructure, however not aware on which all servers it is, what is the port number (Default is port 389, avoid changing this port number, as it will break connections)


Step One :- Check the list of Domain Controllers in your Domain

Command is :-  nltest /dclist:Domain Name

Here after :  Specify youir domain name without space, It will list all the DC's under your domain.

E.g.   Abc.Xyz.com       [DS] Site: Thornton

Here Abc.Xyz.com - Complete FQDN of server: [DS = Directory Services]; Site - Name of Site


Setp Two :- How to check LDAP server & its Priority & Port in your Domain

• Open Command Prompt - Start - CMD - Right click and say Run as Administration
• Enter Administrator passwrd and you'll get Command Prompt
• Type - nslookup & Press Enter
• You'll be at nslookup prompt, Like this :- >
• At nslookup prompt type - set type=all
• You'll be back on nslookup prompt again, then execute below command to find LDAP server & its priority & port number
•  _ldap._tcp.dc._msdcs.Abc.Xyz.com

Here :- Abc.Xyz.com is your domain name; Also very important you need to specify sign like _ & .
any mistake will not execute result.

Result would be like as below

_ldap._tcp.dc._msdcs.Abc.Xyz.com  SRV service location:


priority = 0

weight = 100

port = 389

svr hostname = mickey.Abc.Xyz.com - This is your complete FQDN of your LDAP server   

mickey.Abc.Xyz.com  internet address = 00.00.00.00   - This is your LDAP Internet Address



Feel free to raise any queries  
Happy to help you  
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Add DNS forwarder to 2003 Domain controller

Add DNS forwarder to 2003 Domain controller




1. Connect to DNS server with RDP

2. Launch DNS management from administrative tools

3. Right click the root of the DNS server and select properties

4. Select the forwarders tab

5. Select “All other DNS domains” and add the IP of server (DNS) into the new domain forwarder IP field

6. Click Add and then Ok.

7. Launch nslookup on your DNS server & try to resolve your added DNS server entry.

8. If not getting resolved, please flush DNS entries on your DNS server and try again, it will resolve the added DNS server entry.



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Convert To A Dynamic Disk In Windows Server 2003

Windows Server 2003 supports two different types of disks: basic disks and dynamic disks. All disk devices added to a computer are basic disks until they are converted to dynamic. You may be asking why you would want to convert to your disks from basic to dynamic. Well the answer is that dynamic disks include features that are not available under basic disks such as the ability to create volumes that span multiple disks and the ability to extend a volume.

It is a relatively simple process to convert from basic to dynamic. You can do so through the Computer Management console as outlined below. However, keep the following points in mind before you proceed:

• There must be at least 1 MB of free space on the disk you are converting
• You will not lose any data by converting to a dynamic disk
• Dynamic disks are not supported by mobile computers
• Pre-windows 2000 operating systems do not supported dynamic disks

How to Create Basic Disk to Dynamic Disk :-

1. Right click My Computer and click Manage
2. Click Disk Management.
3. In the right pane, right click the disk you want to convert and click Convert to Dynamic Disk.
4. Place a check beside the disk you want to convert. Click OK.
5. Click Convert.
6. Click Yes.
7. Click OK.

I Thank You  for your time