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Exchange 2010: WS-Management says load quota exceeded when opening EMC/EMS
edited by on February 23rd 2018, at 11:19
When opening the EMC or EMS on an Exchange 2010 server, you may encounter this error:

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  ...
 
SQL Server: ESENT error 1032 in Application event log
edited by 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\  ...
 
Unlock full CLI on a HP 1920 switch
edited by 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.

 
ESX: enter/exit maintenance mode via CLI
edited by on January 17th 2018, at 11:29

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

esxcli

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

vicfg-hostops

  • 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.

PowerCLI

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
 
Server returned 'request expired' less than 0 seconds after request was issued
edited by on January 17th 2018, at 11:10
When attempting to register the vSphere Replication appliance to the PSC, you may encounter this error:

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.

/opt/vmware/hms/logs/hms.log
2017-01-14 06:57:00.694 ERROR com.vmware.vim.sso.client.impl.SoapBindingImpl [main] (..client.impl.SoapBindingImpl) | SOAP faultjavax.xml.ws.soap.SOAPFaultException: The time now Wed Jan 18 12:27:31 MST 2017 does not fall in the request   ...
 
MSExchange ADAccess event 2937 (referenced deleted public folders)
edited by 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 [contoso.com/Deleted 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  ...
 
Activate Adobe Flash Player for Internet Explorer on Windows Server 2016
edited by 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  ...
 
Test an NTP server using ntpdate
edited by on January 8th 2018, at 10:20

You can easily test the availability of an NTP server by using ntpdate. This utility is a command line utility which performs a one-time time sync to the specified NTP server but it can also be used to query the time without setting it by using the -q parameter:

$ ntpdate -q 10.30.0.1
server 10.30.0.1, stratum 4, offset 0.001217, delay 0.04170
 8 Jan 10:19:36 ntpdate[2376]: adjust time server 10.30.0.1 offset 0.001217 sec
 
Upgrade the OpenVPN appliance to a new version
edited by on December 19th 2017, at 10:35
You can very easily update your appliance to the latest version of OpenVPN by following these instructions:

Find the download URL to download the new package. You do not have to download it, you just need the link: using your webbrowser, navigate to Software Packages, click on Ubuntu, then copy the link for the Ubuntu 14 amd/x86 64-bit package. Use that URL in the next step.

Log on to the appliance using SSH (or directly on the console), using the root account and the password (you should have this).

Download the package using wget:wget download_URL_you_copied

This will download the package and store it in the current folder on the appliance.

Install the package:dpkg -i http://swupdate.  ...
 
Set HTML auto-reply messages for shared/resource mailboxes in Office 365
edited by on December 19th 2017, at 09:11
Currently, it's not possible to set up HTML-based auto-reply messages on shared or resource mailboxes, as you cannot directly log on to OWA to set the message. Through Powershell, you can do this quite easily.

First, create two HTML-files containing your internal and external message. You do not have to specify the <html> and <body> tags. Save these to a convenient location. Be sure to save them as regular text files, with extension .txt.

Next, log on to Exchange Online management shell.

cd to the location of the two message files, and load them to variables:

$internalmessage = Get-Content -Path internalmessage.txt

$externalmessage = Get-Content -Path externalmessage.txt  ...
 
HP OfficeJet H470 default Bluetooth PIN
edited by on December 18th 2017, at 15:45

For those looking for the default PIN for the bluetooth connection of a HP OfficeJet H470, it's 0 0 0 0.

Although it can be found in the manual somewhere, it's easily overlooked.

 
PowerCLI: quickly start a service (such as SSH) for all hosts
edited by on December 14th 2017, at 14:03

Sometimes, you need to temporarily start a service (such as SSH) to perform some maintenance task. PowerCLI can help you with this:

To start the SSH server on each host of a vCenter:

Get-VMHost | Get-VMHostService | ? {$_.Key -eq "TSM-SSH"} | Start-VMHostService

To stop the SSH server:

Get-VMHost | Get-VMHostService | ? {$_.Key -eq "TSM-SSH"} | Stop-VMHostService -Confirm:$false

As always, you can make adjustments to the oneliner to select another service to start/stop, or further limit the selection of hosts to a cluster or a group of hosts (e.g. filtered by name).

 
PowerCLI: quickly set log partition for ESX hosts
edited by on December 14th 2017, at 14:00
If you're making changes to the datastore, setting up a new cluster and have a lot of hosts, and wish to set up system logging, you can do so very quickly using PowerCLI.

First, add all the hosts to the vCenter like you normally would. Then, connect to the vCenter server and run this cmdlet:

Get-VMHost | % { $vm = $_ $vm | Get-AdvancedSetting "Syslog.global.logDirUnique" | Set-AdvancedSetting -Value "True" -Confirm:$false $vm | Get-AdvancedSetting "Syslog.global.logDir" | Set-AdvancedSetting -Value "[DataStore01] ESXiLogs" -Confirm:$false}

The cmdlet above will set the system log location to a folder on DataStore01 and enables unique log di  ...
 
PowerCLI: get a list of VMs, their folder and datastore
edited by on December 12th 2017, at 12:35
When performing large storage migrations, it may be useful to get a list of VMs and the datastore and/or folder they are located in. PowerCLI can provide this very quickly:

Get-VM | Select Name,@{N="Datastore";E={[string]::Join(',',(Get-Datastore -Id $_.DatastoreIdList | Select -ExpandProperty Name))}},@{N="Folder";E={$_.Folder.Name}}

You can further pipe this to other cmdlets (such as Where-Object to filter even more), or export it to a CSV.

You can also go into more detail and determine the location of each virtual disk (VMDK) of each VM:

Get-VM | Get-View | % { $name = $_.Name $_.Layout.Disk | % { New-Object PSObject -Property @{ Nam  ...
 
[For Belgians] Direct links to VRT live-streams
edited by on November 23rd 2017, at 09:59

For all you Belgians (Flemish) out there, a list of live-streams (MP3) for people who don't want to use the online player of VRT, or simply can't use the player (e.g. linux users?)

Simply load these up in your favourite player supporting MP3 streaming through HTTP (such as VLC Player).

Where are the URLs? (UPDATE Aug-2017)

Readers that have read this page before will notice all streaming URLs are gone. VRT has switched to another streaming provider, causing all streaming URLs to change. The new list can be found here:

https://www.vrt.be/nl/aanbod/kijk-en-luister/radio-luisteren/streamingslinks-radio/

 
Remove OneDrive from Explorer folder tree in Windows 10
edited by on October 27th 2017, at 09:09

For those that do not wish to use OneDrive and want it removed from the folder tree in Explorer, can do so by a simple registry change:

Open regedit and locate the key: HKEY_CLASSES_ROOT\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}

Change the value of System.IsPinnedToNameSpaceTree to 0

When using 64-bit, repeat the process for the key: HKEY_CLASSES_ROOT\Wow6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}

Note that starting from Windows 10 Creator, you can also remove OneDrive by uninstalling it:

  • Right-click OneDrive in the start menu and click "Uninstall"
  • Go to Control Panel → Add/Remove Programs and uninstall it from the list.
 
VoIP bandwidth consumption
edited by on October 23rd 2017, at 11:28

As found on Voip-info.org, a list of bandwidth consumption per codec.

It's worth mentioning that the table also indicates the total consumption including IP overhead. When making assumptions about bandwidth requirements, it is useful to take this overhead into account.

CodecBRNEB
G.711 64 Kbps 87.2 Kbps
G.729 8 Kbps 31.2 Kbps
G.723.1 6.4 Kbps 21.9 Kbps
G.723.1 5.3 Kbps 20.8 Kbps
G.726 32 Kbps 55.2 Kbps
G.726 24 Kbps 47.2 Kbps
G.728 16 Kbps 31.5 Kbps
iLBC 15 Kbps 27.7 Kbps
 
Testing an ADFS implementation
edited by on October 19th 2017, at 12:00

You can easily verify whether an ADFS implementation is working by using a browser and trying to log on:

https://adfs.yourdomain.com/adfs/ls/IdpInitiatedSignon.aspx

Replace adfs.yourdomain.com accordingly.

Note that in 2016, this no longer works unless you re-enable this feature through Powershell:

Set-AdfsProperties -EnableIdpInitiatedSignonPage $true
 
NetApp: proper shutdown and startup procedures
edited by on October 10th 2017, at 14:36
To properly shut down the NetApp (through the CLI):

First, close down all I/O to the NetApp by dismounting volumes, turning off servers, etc.

Log in on the NetApp through the CLI, using either a console cable or via SSH. Note that if you use SSH, you will not be able to see the complete shutdown sequence.

On the first controller, turn off cluster failover: cf disable



Shut down the controller: halt



Log on to the other controller (using SSH or swap the console cable), then shut down that controller too: halt



Wait until the shutdown sequence has completed before removing power from the controller chassis, then turn off the enclosures. You can use a console cable to verify whether th  ...
 
Create an UEFI-bootable ESXi 6.5 USB installer on Mac
edited by on October 9th 2017, at 14:42
To create an UEFI-bootable USB installer for ESXi 6.5 (or newer) on a Mac, follow the steps below.

First, you'll need an USB flash drive. Any recent drive will be large enough (you'll need at least 512MB). Also, download the latest ESXi installer ISO from My VMWare. You probably need a My VMWare account.

With the prereqs in place:

Insert the USB flash drive in the Mac and start up Disk Utility.

Erase the USB flash drive and choose to format it:Partition map = MBR

Filesystem = FAT32

Give it a descriptive name of your choosing.

After erasing the drive, we still have to mark the one partition on it as "active". Disk Utility does not support this and needs to be done using Termi  ...
 
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