Archive for the ‘Windows’ Category

Enabling NAP on VPN clients

This topic describes how to configure virtual private network (VPN) clients to work with Network Access Protection (NAP) enforcement. This includes the following tasks:

  • Enabling the remote access quarantine enforcement client
  • Enabling and starting the NAP agent service
  • Modifying VPN connections
  • Accommodating clients not capable of using NAP (optional)

Enabling the remote access quarantine enforcement clientThe NAP VPN enforcement method requires that the remote access quarantine enforcement client is enabled on all NAP client computers.To enable the remote access quarantine enforcement client

  1. Click Start, click All Programs, click Accessories, and then click Run.
  2. Type napclcfg.msc, and then press ENTER.
  3. On the console, in the tree, click Enforcement Clients.
  4. In the details pane, right-click Remote Access Quarantine Enforcement Client, and then click Enable.

Enabling and starting the NAP agent serviceBy default, the Network Access Protection agent service on computers running Windows Vista is configured with a startup type of Manual. Each client must be configured so that the Network Access Protection agent service starts automatically, and the service must be started.To enable and start the NAP agent service

  1. Click Start, click Control Panel, click System and Maintenance, and then click Administrative Tools.
  2. Double-click Services.
  3. In the services list, double-click Network Access Protection Agent.
  4. In the Network Access Protection Agent Properties dialog box, change the Startup type to Automatic, and then click Start.
  5. Wait for the NAP agent service to start, and then click OK.
  6. Close the Services console, Administrative Tools, and System and Maintenance windows.

Modifying VPN connections
To modify VPN connections

  1. Click Start, click Run, and type NCPA.cpl, and then press ENTER.
  2. In the Network Connections window, right-click the appropriate VPN connection, click Properties, and then click the Security tab.
  3. Confirm that Advanced (custom Settings) is enabled, and then click Settings.
  4. For Logon security, select Use Extensible Authentication Protocol (EAP) and Protected EAP (PEAP) (encryption enabled), and then click Properties.
  5. Click Configure, and then click OK.
  6. Under Select Authentication Method, click either Secured password (MS-CHAP v2) or Smart Card or other certificate, depending on your deployment.
  7. Select Enable Quarantine checks.
  8. In the VPN Connection Properties windows, click OK three times.

Accommodating clients not capable of using NAP (optional)Clients running other operating systems can be accommodated in an NAP deployment. These clients should connect to the network by using the Connection Manager, and you should configure NPS to place these clients in the quarantine network. They will then be able to join the VPN Clients network using RQS or RQC.

Windows Administrator Interview Most Likely Questions

1) Difference Between Windows 2003 and Windows 2008

2) Difference Between Windows 2008 and Windows 2012

3) What are the different types of RAID and differnce between the Types of RAID

4)  Which are the Active Directory FSMO Roles and Explain them

5) What are the Different Types of Quorum in a failover Cluster

6) The reason why BSOD ( Blue Screen of Death ) errors occur and how to troubleshoot the Issue .

7) What are the Different Editions of Windows 2008 OS and Windows 2012 OS

8) How Many VMs can be Created on Windows 2008 Std Edition , Windows 2008 Ent Edition , Windows 2008 Datacenter Edition ( Default Hyper V Virtulisation Case )

9) How Many VMs can be created on Windows 2012 Std Edition , Windows 2012 DC edition ( Default Hyper V Virtulisation Case )

10) Ports Numbers of  http , https , DNS ,  smtp , pop3 , Imap, dhcp , ftp , ldap , Global Catalouge

11) Difference between IIS 6.0 , IIS 7.0 , IIS 8.0

12) IIS 6.0 processing Architecture , IIS 8.0 Processing Architecture

13) Types of DNS zones

14) Types of DNS records

15) What is the path of http.sys file on Windows

16) What is the path of hosts file on Windows

17) What is the path of IIS log files on Windows

18) What is NTDS.dit and the path of NTDS.dit

19) Difference between Basic Disk and Dynamic Disk

20 ) Hyper V hard Disk format and Vmware Hard Disk Format .

 

Reasons For ( BSOD ) Blue Screen Of Death Errors

At times you will receive an Error with a Blue Screen and a Stop error with an Associated Error Code .  In Such Situation the server keeps on rebooting and there is very little which we can do . Below are the reasons why blue screen of death Errors occur .

BSOD Errors are mainly caused because of Hardware Issues

1)  Installation of Wrong Device Drivers

2) Any hardware issue inside the Server

3) Rebooting the server while Windows updates are being applied on the Server

When a BSOD error Occurs Windows Automatically creates a minidump file which has information about the crash as to why it is crashing .

In order to troubleshoot the issue you can use the Windbg tool to read the minidump file and find out the cause of the issue .

 

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