Jim Prince on March 18th, 2015

Today I experienced an error after I had joined a Windows Server 2012 R2 Server to a domain and tried to log on following a reboot.

"The security database on the server does not have a computer account for this workstation trust relationship"

There are a number of documented solutions which tend to involve removing and re-adding the server to the domain, optionally deleting the computer object between steps.

This didn’t fix it for me.

The next solution I came across suggested using ADSI Edit to check the dNSHostName and servicePrincipalName attributes of the computer account to comfirm that the computer account names were all correct.

In my case they were.

So since Google had failed me I opted to hop onto the domain controllers and pour through the Event Viewer. Lo and behold in the system log of one of the DCs the following error popped up.

"The KDC encountered duplicate names while processing a Kerberos authentication request. The duplicate name is host/<server_name> (of type DS_SERVICE_PRINCIPAL_NAME). This may result in authentication failures or downgrades to NTLM. In order to prevent this from occurring remove the duplicate entries for host/<server_name> in Active Directory."

Duplicate SPN error

Armed with this new information I ran setspn -X and duplicate SPNs were indeed returned. So I used setspn -D <service>/<name> <hostname> to delete the incorrect entries and was able to log into my server, a reboot was not required and the fix was instant. Happy days.


Jim Prince on October 28th, 2012

I upgraded to Windows 8 on Friday and was pretty impressed by how smooth the process went. The only problem I’ve experienced so far is with my Corsair CA-HS1 Headset which wouldn’t work. It found and installed appropriate drivers but wouldn’t play any audio.

The solution is quite straightforward, close the Corsair USB Control Panel in the notification area.

Then navigate to “C:\Program Files\Corsair USB Headset\Customapp\Program”, right click on CAHS.exe and select properties. Then on the compatibility tab choose Windows 7 Compatibility Mode.

Finally double click the file to re-launch the Control Panel. Sorted.

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Jim Prince on June 19th, 2012

It's well worth a watch. Microsoft have always made great hardware and finally Apple have some real tablet competition.

I love the design, I love the fact you can use standard Windows apps, I love the aspect ratio, I love the keyboard, touch cover and stand, but not the colours – they're garish and childish. The pen technology is clever but I don't think I'd use it.

I really hope that the software and UX matches the apparent quality of the hardware and that they get the pricing right. 

I'll gloss over the fact he swapped out a tablet that clearly wasn't working 14 minutes in – good save Microsoft.


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Jim Prince on June 4th, 2012

My Raspberry Pi was finally delivered last week and I’ve had a chance to play. Here are some notes on how to configure it as a simple Web Server.

The first thing I did was to check for updates and configure SSH. I don’t want it connected to a monitor and keyboard all the time. I use DHCP so there was no need to faff about with static IP Addressing and DNS. SSH is disabled by default so I enabled it as follows;

sudo apt-get update
ssh-keygen -t rsa
sudo mv /boot/boot_enable_ssh.rc /boot/boot.rc
sudo /etc/init.d/ssh start

Source: http://elinux.org/R-Pi_Troubleshooting#Cannot_ssh_in_to_Pi.

I decided to use Nginx rather than Apache as it’s faster and I guess better suited to a device such as this.

sudo apt-get install nginx

The only config changes required to the Nginx config was to comment out the line for listening on ipv6. This was preventing Nginx from starting.

Comment out # listen[::]:80 default ipv6only=on

vi /etc/nginx/sites-enabled/default

I then installed PHP and fastCGI

sudo apt-get install php5-common php5-cli php5-suhosin php5-cgi spawn-fcgi

Further changes were required to /etc/nginx/sites-enabled/default as well as following the excellent instructions from here to configure FastCGI. I used the TCP Sockets Configuration Example.

Once I’d started php-fastcgi and restarted Nginx I created a simple info.php to confirm everything was working, which it was, happy days :-).

< ?php

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Jim Prince on April 25th, 2012

Lots of posts about #Steam being ported to Linux so I'll add to the noise. I really think Steam is the future for gaming on the PC – I haven''t bought a game on physical media for years.

The competition – EA's Origin, Direct2Drive, Gamers Gate, Games for Windows are all pretty poor. So if Valve can pull it off this could provide a huge boost to Linux Desktops.

The success of Windows 8 will also have an influence. At the moment I've seen nothing that makes me want to upgrade from Windows 7. I guess only time will tell.


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Valve confirms Steam and Source for Linux, signals low confidence for Windows 8 | ExtremeTech
Later this year, L4D2 will be released for Linux — but more importantly, Gabe Newell has indicated that Windows 8 is awful and that Linux might be the future of desktop gaming.

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Jim Prince on February 29th, 2012

I also like the way they've used Ted Talks to publicise it. There's even a microsite at https://www.weylandindustries.com but there's not much to see yet.

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Jim Prince on February 29th, 2012

This looks neat.

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Jim Prince on February 24th, 2012

I remember seeing this as proof of concept a few years ago, it's good to see that it's finally being manufactured. The MU http://www.themu.co.uk/ is a touch expensive but I'm sure the price will fall over time.

More details on the BBC's Web Site http://www.bbc.co.uk/news/technology-17118938

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Made In MindUntitled DocumentUntitled Document
"We created Made in Mind to bring the Folding Plug concept to life. We want it to now be a space for bringing other ideas to life." Contact Us | Terms | Privacy | Address : Willowbank House,…

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Jim Prince on February 23rd, 2012

It's about time someone came up with something like this but at £120 the cost is prohibitive.

You can get standard powerline adapters for less than £30. A built in USB socket for charging devices would have been a useful addition too.

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Power Ethernet tidies up whole-house networking

New from British technology start-up Power Ethernet is a neat solution to running internet and network connectivity around the house – a mains socket with built-in PowerLine networking and four Ethe…

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I'm seriously considering the purchase of an SSD but I think prices will fall significantly over the next 12 months. Mechanical hard disks have had their day. The Thailand floods and subsequent increase in prices have put the final nail in their coffin.

Also http://uk.camelcamelcamel.com is great for shopaholics who love a bargain!

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Crucial CT128M4SSD2 128GB M4 SSD
Amazon price tracking & price history for Crucial CT128M4SSD2 128GB M4 SSD

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