by lunarg on February 23rd 2018, at 11:19
When opening the EMC or EMS on an Exchange 2010 server, you may encounter this error:

The attempt to connect to http://server.domain.local/Powershell user 'Kerberos' authentication failed: Connecting to remote server failed with the following error message: The WS-Management service cannot process the request. The system load quota of 1000 requests per 2 seconds has been exceeded. Send future requests at a slower rate or raise the quota for this user. The next request from this user will not be approved for at least X milliseconds.

To workaround the issue, perform a restart of IIS: open an elevated command prompt and run:

iisreset /restart

After the restart, you will be able to log  ...
by lunarg on February 12th 2018, at 13:36
When starting up SQL Server or Analysis Services on Server 2012, you may encounter errors in the Application event log, even though SQL Server itself seems to operate normally:

ESENT error 1032
sqlservr (3472) An attempt to open the file "C:Windowssystem32LogFilesSumApi.log" for read only access failed with system error 5 (0x00000005): "Access is denied. ". The open file operation will fail with error -1032 (0xfffffbf8).

These errors are logged due to insufficient permissions for the service startup accounts for SQL Server and Analysis Services when the services access the following folder for logging as a part of the Software Usage Metrics feature: C:\Windows\System32\  ...
by lunarg on February 9th 2018, at 10:03

HP 1920 switches (and others of the same kind) have a CLI mode which is highly restricted. It is possible to unlock this, providing full access to the configuration of the switch through CLI.

Log on to the CLI (SSH or Telnet) with the admin user and the password (default: none).

Type and press Enter:

_cmdline-mode on
All commands can be displayed and executed. Continue? [Y/N]

Press Y to confirm.

Please input password:

Enter the password. This is a firmware-set password and is not user-defined. Depending on the firmware, try one of these:

  • 512900
  • Jinhua1920unauthorized

If successful, you can now run all commands.

by lunarg on January 30th 2018, at 10:40

You can easily update your vCenter Server Appliance (VCSA) offline by downloading a product patch ISO and via the CLI.

Download the latest patch from VMware Patch Download Center. Select VC from the Search by Product drop-down menu, then select the correct version (i.e. 6.0 or 6.5). Download the patch ISO and attach it to the VCSA.

Log in to the shell (using SSH or VMRC) and initiate the update:

  1. Stage the ISO updates:
    software-packages stage --iso
  2. Optionally, you can view the list of packages to be updated:
    software-packages list --staged
  3. To install the updates, run:
    software-packages install --staged

After the update has finished, you will have to reboot the VCSA.

by lunarg on January 17th 2018, at 11:29

You can use either esxcli or vicfg-hostops to enter/exit maintenance mode.


  • Enter: esxcli system maintenanceMode set --enable true
  • Exit: esxcli system maintenanceMode set --enable false


  • Enter: vicfg-hostops --operation enter
  • Exit: vicfg-hostops --operation exit

Note that you can use vicfg-hostops --operation info to check whether the host is finished with entering maintenance mode or is still busy.


After connecting to the host or vCenter server:

  • Enter: Get-VMHost <name-of-host> | Set-VMHost -State Maintenance
  • Exit: Get-VMHost <name-of-host> | Set-VMHost -State Connected
by lunarg on January 17th 2018, at 11:10
When attempting to register the vSphere Replication appliance to the PSC, you may encounter this error:

Server returned 'request expired' less than 0 seconds after request was issued, but it shouldn't have expired for at least 600 seconds.

On the appliance, look in the log file /opt/vmware/hms/logs/hms.log: if you see messages similar to the following, the time of the replication appliance and the PSC may not be in sync.

2017-01-14 06:57:00.694 ERROR com.vmware.vim.sso.client.impl.SoapBindingImpl [main] (..client.impl.SoapBindingImpl) | SOAP The time now Wed Jan 18 12:27:31 MST 2017 does not fall in the request   ...
by lunarg on January 15th 2018, at 14:12
In environments which have migrated from Exchange 2010 to 2013 (or later), and where public folders have been decommissioned, you may encounter the following events in the Application event log:

MSExchange ADAccess, Event ID: 2937
Process MSExchangeTransport.exe (PID=9356). Object [CN=Contoso,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=contoso,DC=com]. Property [RemotePublicFolderMailboxes] is set to value [ Objects/PublicFolderMailboxDEL:d980f9a4-2014-4165-aad0-7ab91b35ef01], it is pointing to the Deleted Objects container in Active Directory. This property should be fixed as soon as possible.

With the removal of the public folders database, not all objects re  ...
by lunarg on January 10th 2018, at 14:28
Internet Explorer 11 has an integrated Adobe Flash Player plugin, but on Windows Server 2016, this plugin is not active by default. In fact, checking the available plugins within IE does not show the plugin as installed. This is because the plugin is not activated by default (which is somewhat logic as it's considered a security risk).

The package containing the plugin does exist on Windows Server 2016 (with GUI) but is not active. You can manually activate the plugin through dism:

dism /online /add-package /packagepath:"C:\Windows\servicing\Packages\Adobe-Flash-For-Windows-Package~31bf3856ad364e35~amd64~~10.0.14393.0.mum"

After adding the package, you will have to reboot for it  ...
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