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Posts Tagged ‘Windows 2008 R2’

NFS: How to connect to NFS using Windows Server 2008 R2 without using User Mapping Server

June 29, 2012 6 comments

When connecting to NFS shared folder the windows credentials needs to be mapped to a equivalent unix account+ group. 

In Windows Server 2008 R2 the support for User Mapping is dropped and the same functionality can only be achived using Identity Management for Unix Components (extension schema for Active Directory).

Below describes on how you can connect to a NFS folder without using User Mapping Server.

A. Install NFS Client

Step 1. Enable File Services Role. Go to Server Management – > Add Roles -> File Services

Step 2. Install Services for Network File System. Go to File Services – > Add Role Services

 

B. Update NFS Client Registry

In this step, we are going to map the anonymous user credential to the unix account credential that you’ll be using to connect to NFS share. First you need to get the User Id and Group Id of the unix account from the unix administrator. It should be of decimal value like: UserId= 6500000 GroupId=4200. Once you have it, we can proceed.

1. Open Regedit.

2. Go to \HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ClientForNFS\CurrentVersion\Default.

3. Create 2 DWORD value, one for AnonymousUid with decimal value=<User Id> and another for AnonymousGid with decimal value=<GroupId>.

It should look like this:

4.  Restart the NFS Client. Go to Administrative Tools -> Services for Network File System (NFS) ->

C. Test NFS Connection

1. Open command prompt.

2. Type:  mount -u:<UserName and not UserId> -p:<Password> <SharedNFSFolder> <drive letter to mount, Ex: J:>

3. dir <drive letter:>

Copy file to this NFS folder. This is only way to confirm that the registry hacking is successfully. Because by default if the anonymous access is turned on in NFS side, you can see the files without having to supply user/password.

Note: Limitation is that, you can only connect to a single NFS share because it would use the same UserId and Group Id everytime you connect.

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Categories: Windows Server Tags: ,

Event Log – System.Security.SecurityException: The source was not found, but some or all event logs could not be searched. Inaccessible logs: Security

November 10, 2011 2 comments

Event Log – System.Security.SecurityException: The source was not found, but some or all event logs could not be searched. Inaccessible logs: Security

This is a common error specially if you’re using Windows Server 2008 and higher, error means that the application/program that’s trying to write to event log with source not registered properly. Take the sample code below as an example:

EventLog.WriteEntry(“<Source>”,”Message”);

During the deployment you can register the source by entering the ff command in the command prompt (Run as Administrator):

eventcreate /ID 1 /L APPLICATION /T INFORMATION /SO <Source> /D “Registering”

If for some  reason you don’t know the source is and it’s throwing the error do the following:

Start -> Run -> regedit.exe Navigate to My Computer > HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\EventLog

in the Permissions, and grant the identity wherein the application/server is running with read/write permissions.

You will see the source that you need to register in the Event Log.

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