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November 21st, 2022 08:00

VNX: Event Viewer connect to another computer (NAS server) -> Access denied

I am tried to open eventviewer -> connect to another computer and enter ip of the nas server to view audit events but I get access denied from a computer that is not logged in domain, if i do the same from a machine in domain it works.

1. How can i authenticated to view audit logs in event viewer remotely?

2. What users/permissions can view remote audit logs opening remote event viewer Security tab? How are this permissions configured? because looks like anyone in the domain can open them and the remote registry to NAS server

3. How to autenticate remotely? net use \\ip\\ipc$ or any othe mechanism?

4. I need to query events from system user/task how to authenticate to be able to connect remotely and  list events?

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8.5K Posts

November 22nd, 2022 08:00

At this point the best option is to call phone support. 

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8.5K Posts

November 22nd, 2022 06:00

Hi,

Thanks for your question. It should block access from non trusted domains. https://dell.to/3i4SHsH

Let us know if there is anything else we can help you with.

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24 Posts

November 22nd, 2022 06:00

1. I can auth and access cifs folder from a machine that is not in domain or trusted domain but i cant read remote logs from event viewer.

2. What is the hidden parameter change needed for this mentioned in the article?

what is the hidden

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24 Posts

November 22nd, 2022 07:00

Per example this command to get remote logs from NAS is working in any computer that is joined domain and has authenticated nas server using net use, but if i run from a machine that is not in domain is not working and gives this error. Any solution for this?

PS > Get-EventLog -ComputerName 10.58.20.66 -LogName Security
Get-EventLog : Cannot open log Security on machine 10.58.20.66. Windows has not provided an error code.
At line:1 char:1
+ Get-EventLog -ComputerName 10.58.20.66 -LogName Security
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [Get-EventLog], InvalidOperationException
+ FullyQualifiedErrorId : System.InvalidOperationException,Microsoft.PowerShell.Commands.GetEventLogCommand

PS> net use
New connections will be remembered.


Status Local Remote Network

-------------------------------------------------------------------------------
OK \\10.58.20.66\ipc$ Microsoft Windows Network
The command completed successfully.

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8.5K Posts

November 22nd, 2022 07:00

VNX/VNX2:
First set the parameter with .server_config:
.server_config server_2 -v "param NTsec logonOptions=0x2d"

Then update the param files for all of the active datamovers(Standby datamovers do not need to be set):
vi /nas/server/slot_2/param

Then add the following line to the param file:
param NTsec logonOptions=0x2d

Run build config to ensure the changes persist upon reboot:
/nas/sbin/build_config /nas/server/slot_2 /nas/dos/slot_2

VNXe/Unity:
Get root shell first, then run the .server_config command to change the parameter on the fiy:
/nas/bin/.server_config ALL -v "param NTsec logonOptions=0x2d"

Update the param files for SVDM_A and SVDM_B:
vi /nas/server/slot_2/param
vi /nas/server/slot_3/param

add the following line:
param NTsec logonOptions=0x2d

Run build config to ensure the changes persist upon reboot:
/nas/sbin/build_config /nas/server/slot_2 /nas/dos/slot_2
/nas/sbin/build_config /nas/server/slot_3 /nas/dos/slot_3

1 Rookie

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24 Posts

November 22nd, 2022 07:00

I enabled ssh and ssh into the storage but cant run the commands your posted:

15:11:19 service@VIRT2242XPWCV1 spa:~/user# /nas/bin/.server_config ALL -v "param NTsec logonOptions=0x2d"
-rbash: /nas/bin/.server_config: restricted: cannot specify `/' in command names
15:12:12 service@VIRT2242XPWCV1 spa:~/user# cd /
-rbash: cd: restricted

 

1 Rookie

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24 Posts

November 22nd, 2022 08:00

I am testing this in UnityVSA is there something different there?

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8.5K Posts

November 22nd, 2022 09:00

Possibly, VNX is different enough that fixes for one don't always work on Unity. 

1 Rookie

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24 Posts

November 24th, 2022 03:00

how can we proceed with this? I guess we cant open support for UnityVSA free/community edition

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8.5K Posts

November 28th, 2022 06:00

Right, needs to be paid version or physical unity/vnx hardware. Maybe there is something in an unrelated article that will help. https://dell.to/3u9Mkah and https://dell.to/3u49gHS

1 Rookie

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24 Posts

November 30th, 2022 15:00

I cant access those link, dont have permissions

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6.9K Posts

December 1st, 2022 01:00

Hello alx123,

The first link is to Dell Unity XT family technical white papers and videos, the second link is to the following:

Unable to increase audit log file in event viewer (User Correctable)

Audience Level: Customer

Article Content


Symptoms



Unable to increase the size of the NAS/SMB Server Security Log file [c:\security.evt] by modifying its location but it keeps reverting back to its original value.

Cause

A domain GPO (Group Policy Object) is enabled that limits any security event logging file to a fixed value on any joined domain object.

Resolution

1. Edit the policy from the host side.
2. Make an immediate GPO update from unity side using the following command:
svc_cifssupport {
     
       | ALL} -gpo [-info] [-update]

      
 

Additional Information

For more details on how to change the location of the file, please check KB:  https://dell.to/3XNRbeL
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