While setting up a lab running Remote Desktop Gateway on Windows Server 2012 R2 I came across a strange problem. I was able to connect through the RD Gateway using some machines but not others.
On the machines that were failing I got the following message when trying to connect:
"Your computer can't connect to the remote computer because an error occurred on the remote computer that you want to connect to. Contact your network administrator for assistance."
After much pulling of hair I narrowed it down to something to do with the KB2592687 update. This update installs RDP version 8.0 on Windows 7 SP1 machines. This update was present on both the machine I was trying to connect to and on the clients that were failing. There is a list of known problems in knowledge base article but none of them applied to my setup.
More searching found loads of red herrings, then I discovered this post. It mentions LAN manager authentication level settings (Local security policy->Local Policies->Security Options->Network Security: LAN Manager authentication level). On the failing client it was set to "Send LM & NTLM - user NTLMv2 session security if negotiated." Changing it to "Send NTLMv2 response only" (which seems is the default on Vista and above) made the connection work.
Sunday, 15 December 2013
Sunday, 16 June 2013
Extending disks on a Windows VM
Extend disks on a Windows Server 2008 R2 machine (and probably Windows 7 as well).
Extend the hard drive in VM Settings, this can be done while Windows is running but I was unable to get Windows to see the new size until after I rebooted the VM.
GUI
Server manager->Storage->Disk management, right click on the drive and choose "Extend Volume..." select size to expand to then click next.
Command line way
Start->Run and type diskpart.
At the disk part prompt type:
This will show you a list of the disks in the system, once you have identified the disk you want by it's number (I only have disk 0 (zero) in the example above).
We now need the volume number:
Another easy way to extend disk sizes (as well as many other useful functions) is to run a live CD of gparted. This will also works with other operating systems such as Linux. In fact it should work any file system that gparted understands, check out there features page.
Extend the hard drive in VM Settings, this can be done while Windows is running but I was unable to get Windows to see the new size until after I rebooted the VM.
GUI
Server manager->Storage->Disk management, right click on the drive and choose "Extend Volume..." select size to expand to then click next.
Command line way
Start->Run and type diskpart.
At the disk part prompt type:
DISKPART> list disk
Disk ### Status Size Free Dyn Gpt -------- ------------- ------- ------- --- --- Disk 0 Online 40 GB 5121 MB
This will show you a list of the disks in the system, once you have identified the disk you want by it's number (I only have disk 0 (zero) in the example above).
We now need the volume number:
DISKPART> list volume
Volume ### Ltr Label Fs Type Size Status Info ---------- --- ----------- ----- ---------- ------- --------- -------- Volume 0 D CD CDFS DVD-ROM 112 MB Healthy Volume 1 System Rese NTFS Partition 101 MB Healthy System Volume 2 C NTFS Partition 40 GB Healthy BootNow "select" the volume you want to extend (in this case I am extending my C drive so it is volume 2).
DISKPART> select volume 2 Volume 2 is the selected volume.Now tell diskpart to extend the volume into the all the free space on disk 0:
DISKPART> extend disk=0 DiskPart successfully extended the volume.That is it, all done.
Another easy way to extend disk sizes (as well as many other useful functions) is to run a live CD of gparted. This will also works with other operating systems such as Linux. In fact it should work any file system that gparted understands, check out there features page.
Subscribe to:
Posts (Atom)