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While creating a reservation in a DHCP scope (Windows 2008 R2) I received the error mentioned. After some investigation I discovered that Windows 2008 R2 doesn’t allow reservations that are not in the scope, although the subnetmask (for example 255.255.0.0) is big enough. Changing the subnetmask isn’t an option, so you have to delete and re-create […]
Lees verder… from Error : The specified DHCP client is not a reserved client.
I ran into a problem while moving Exchange (2003) mailboxes to a new Exchange (2010) Database : The solution was to add the Exchange 2010 servers Full Control access (or the Exchange service group!) of the mailbox stores. (Exchange 2003 System Manager, First Storage Group, Mailbox Store, Properties, Security Tab) […]
Lees verder… from Exchange 2010 : Unable to move mailboxen (Mailbox database is offline)
By default Exchange 2010 moves 5 mailboxes at the same time. But you can change that. Go to %exchangeinstalldir%\V14\BIN and open with ultraedit, notepad or something like that the following file : MSExchangeMailboxReplication.exe.config Look for the following (control-f :-)) : MaxActiveMovesPerTargetMDB = Change the default number (2 or 5, depending which Servicepack) to a higher […]
Lees verder… from Exchange 2010 : Change number of concurrent mailbox moves
Download Exchange 2010 SP1 here : http://go.microsoft.com/fwlink/?LinkID=199950 For Windows Server 2008 R2 the following hotfixes are required : http://code.msdn.microsoft.com/KB982867/Release/ProjectReleases.aspx?ReleaseId=4520 http://code.msdn.microsoft.com/KB983440/Release/ProjectReleases.aspx?ReleaseId=4410 http://code.msdn.microsoft.com/KB977020/Release/ProjectReleases.aspx?ReleaseId=4115 http://code.msdn.microsoft.com/KB979744/Release/ProjectReleases.aspx?ReleaseId=3993 […]
When it’s possible to save/export the configuration do so. Delete the virtual directories (exchange, public, oma etc.) Download Metabase explorer and remove the DS2MB key (first key on the top) in orde to force recreating the directories. Download it here : MetabaseExplorer.renametozip Restart MS Exchange system attendant service and test OWA/OMA etc You have to […]
Lees verder… from Howto : Re-create Exchange 2003 IIS virtual Directories
When importing multiple scopes after each other you get the “cannot find the file specified”. It’s a bug (not a feature :-)). Solution is to exit after each import. […]
Lees verder… from The system cannot find the file specified when importing DHCP scope
In W2K3 it is possible to create extended scope options for example Cisco callmanager, Wyse etc. using the “Set Predefined Options”-option in the action menu. I couldn’t find these option anymore. The action menu was pretty much cleaned up in W2K8 r2 🙂 Now these options are visibile by etiher the IPV4 or the […]
Lees verder… from Help : Where did my Set Predefined Options in W2K8 go?
Use the following steps to migrate the DHCP configuration & settings : Logon to the source (W2K3) server Start the command prompt (cmd.exe) netsh DHCP server 127.0.0.1 export W2K3DHCP all or export W2K3DHCP <scope, e.q. 10.1.1.0> Copy the export file to the other (W2K8) server stop the DHCPSERVER net stop DHCPSERVER or using services.msc delete […]
Lees verder… from Howto : Migrate DHCP scope from Windows 2003 to Windows 2008 Server
Create a new shortcut, for example on your desktop. The (default) location is c:\windows\system32\ncpa.cpl. Give a suitable description and click next. […]
Lees verder… from Handy : How to create network properties shortcut
NetApp Insight 2010 Prague is already fully booked. There is some room in Las Vegas and China 🙂 Check it out here. […]
Lees verder… from Information about NetApp Insight 2010 (link)
Check out this NS0-154 practice exam from NetApp : […]
Lees verder… from NetApp NS0-154 Practice Exam (provided by NetApp)
Use this script to gracefully shutdown your servers running on your VMware hosts. (VMware tools has to be installed although) VMLIST=’vmware-cmd -l’ for config in ${VMLIST} do vmware-cmd $config stop trysoft done vimsh -n -e /hostsvc/maintenance_mode_enter shutdown -h now […]
Exchange 2010 setup does a detailed check on their prerequisites, but does not install them for you. You are expected to manually install and configure all required hotfixes, server components and services which is inefficient and time consuming. Maybe you find it useful to automate the installation and configuration of the prerequisites. Therefore download the following […]
Lees verder… from How to install Exchange 2010 prerequisites automatically
Follow these simple steps to upgrade the Ontap version of your NetApp filer : – download the preferred Ontap version from now.netapp.com – map filer/c$ to a network drive – copy the ontap.exe-file to this location (/etc/software) – open the command prompt, use software list to check the file – then use software install <filename.exe> to […]
Found this nice plugin : http://nickapedia.com/wp-vspherestats/ Installing is easy and works like a sharm! Or check it out live at http://vworld.nl […]
Lees verder… from Just installed vSphereStats for WordPress at vworld.nl
I needed some SSL certs for my Exchange and other servers. I wanted to buy some certificates from an commercial supplier like godaddy.com or something like that. But this is how I’ve fixed the problem. Go to CAcert.org (https://www.cacert.org/index.php) and register/create an account. Create an certificate request on IIS or an server you wish to […]
I ran into some problems usingthe VC Client Update Manager. After checking the .ZIP update file it came with an error. The solution, download the .ZIP upgrade file, extract it and copy it to your ESXi server using winscp or VC storage browse Go to the directory where you placed the files and do the […]
I install my ESXi servers with a pre-compiled version with ESXi with SSH access already enabled. But for the people who don’t, this is how you enable (unsupported!) SSH access to ESXi. Logon to the console (you don’t have SSH access, so this is the only option) Press ALT-F1 and type unsupported (you don’t see […]
I ran into a problem with one virtual machine, when creating a snapshot for backup (Veeam and/or VMware datarecovery) : After some troubleshooting i found that stopping the following services did the job : Microsoft Software Shadow Copy Provider” and “Volume Shadow Copy” The specific server is an webserver so these VSS services are not […]
Sometimes it can be handy to export and import your DNS records. This can easily be done. When you are using an Active Directory integrated DNS server (and who isn’t :-)), then you can acomplish this as follows: Change your DNS scope settings to not Active Directory integrated Go to c:\windows\system32\DNS Edit or copy/paste the […]
