Solved

Powershell limits

Posted on 2012-04-03
9
2,062 Views
Last Modified: 2013-03-13
I'm trying to run a file system security audit on a W2k3 file server with a Powershell2.0 script, I've ran into a few problems:
1) I can't seem to log Folder permissions if my Domain Admin account doesn't have permission to the folder/file.
2) There appears to be a path limit of 260.
I'm using a script found here: http://jfrmilner.wordpress.com/2011/05/01/audit-ntfs-permissions-powershell-script/#comment-43

Is there a way to run a powershell script with "System" level or "Backup" level permissions to get by any directory access problem.
Is there a directory path limit in Powershell?
Thanks

Errors:
Get-ChildItem : The specified path, file name, or both are too long. The fully qualified file name must be less than 260 characters,
and the directory name must be less than 248 characters.
At C:\cmd\Get-PathPermissions.ps1:10 char:29
+ $containers = Get-ChildItem <<<< -path $Path -Recurse -Force | ? {$_.psIscontainer -eq $true}
+ CategoryInfo : ReadError: (F:\GroupData…ation work data:String) [Get-ChildItem], PathTooLongException
+ FullyQualifiedErrorId : DirIOError,Microsoft.PowerShell.Commands.GetChildItemCommand

Get-ChildItem : Access to the path 'F:\GroupData\Accounting\Cost Accounting Archives' is denied.
At C:\cmd\Get-PathPermissions.ps1:10 char:29
+ $containers = Get-ChildItem <<<< -path $Path -Recurse -Force | ? {$_.psIscontainer -eq $true}
+ CategoryInfo : PermissionDenied: (F:\GroupData…unting Archives:String) [Get-ChildItem], UnauthorizedAccessExcept
ion
+ FullyQualifiedErrorId : DirUnauthorizedAccessError,Microsoft.PowerShell.Commands.GetChildItemCommand
0
Comment
Question by:Starrett2005
  • 5
  • 4
9 Comments
 
LVL 78

Expert Comment

by:David Johnson, CD, MVP
ID: 37805327
Maximum path 260
This is a known problem, not all windows api's support more than the system MAXPATH of 260
Work Arounds

Is there a way to run a powershell script with "System" level or "Backup" level permissions to get by any directory access problem.
Is there a directory path limit in Powershell?


you could try starting powershell with a runas with a user that is a member of the backup operators group
0
 

Author Comment

by:Starrett2005
ID: 37806047
MAXPATH:
I will try the \\?\ prefix and see if that works as described in: http://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx

Script access to ACL on Directories/Files:
I already run the script as a Domain Admin (which has the Backup Privilege) and get the posted access errors. I remember that the utility RoboCopy has a switch to run with backup privilege when access is denied.  I'm trying to see if Powershell includes something similar.
0
 
LVL 78

Expert Comment

by:David Johnson, CD, MVP
ID: 37806120
robocopy will then use VSS to copy the files
0
 

Author Comment

by:Starrett2005
ID: 37806166
OK, that makes sense for Robocopy, but all backup software is somehow allowed to backup files even if the account scheduled to run the backup doesn't have access to the files interactively. Example: WindowsNT4.0 "ntbackup" app.  There must be some way for the Powershell script to gain this access to pull ACL's off of Folder/File objects.
0
Are your AD admin tools letting you down?

Managing Active Directory can get complicated.  Often, the native tools for managing AD are just not up to the task.  The largest Active Directory installations in the world have relied on one tool to manage their day-to-day administration tasks: Hyena. Start your trial today.

 

Author Comment

by:Starrett2005
ID: 37825019
So far I haven't had any luck with the MAXPATH. Is there any other method to pull acl's from directories that have not been granted access to?
0
 
LVL 78

Expert Comment

by:David Johnson, CD, MVP
ID: 37825218
no the security model won't allow this
0
 

Author Comment

by:Starrett2005
ID: 37827317
ve3ofa,

Is there a Microsoft post available that would state this.  I need this to present to management before they aprove changing permissions on everything to allow an Admin account access so we can query ACL's appropriately.
0
 
LVL 78

Accepted Solution

by:
David Johnson, CD, MVP earned 500 total points
ID: 37827928
If you can't access it via explorer then you can't access it via powershell, it is that simple NTFS file permissions. http://technet.microsoft.com/en-us/library/cc785144%28v=ws.10%29.aspx
0
 

Author Closing Comment

by:Starrett2005
ID: 38981444
Thanks
0

Featured Post

U.S. Department of Agriculture and Acronis Access

With the new era of mobile computing, smartphones and tablets, wireless communications and cloud services, the USDA sought to take advantage of a mobilized workforce and the blurring lines between personal and corporate computing resources.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

A procedure for exporting installed hotfix details of remote computers using powershell
This script can help you clean up your user profile database by comparing profiles to Active Directory users in a particular OU, and removing the profiles that don't match.
Windows 8 comes with a dramatically different user interface known as Metro. Notably missing from the new interface is a Start button and Start Menu. Many users do not like it, much preferring the interface of earlier versions — Windows 7, Windows X…
With the advent of Windows 10, Microsoft is pushing a Get Windows 10 icon into the notification area (system tray) of qualifying computers. There are many reasons for wanting to remove this icon. This two-part Experts Exchange video Micro Tutorial s…

910 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

23 Experts available now in Live!

Get 1:1 Help Now