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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for December 18th, 2017

WinHTTP Cipher restrictions to TLSv1.2 does not work on Windows7, Server 2008 R2 and Server 2012…

Posted by jpluimers on 2017/12/18

This will bite me some time for sure, so for my link archive: [WayBack] TRestClient and Cipher restrictions to TLSv1.2 does not work on Windows7 and Server2008R2 … and how it can be solved… – Günther Schoch – Google+

References:

For at least some Windows 7 and Server 2008 R2 systems, that update (KB3140245) doesn’t automatically turns up in the Windows Update list.

To make matters worse, the page cannot be archived in either the WayBack machine or Archive.is (I tried multiple times with empty results).

Luckily, there is a copy at [WayBack] KB3140245 DefaultSecureProtocols – Security.NL.

After installing the update, you have to ensure you set the DefaultSecureProtocols registry value to the bitmap value that indicates with SSL/TLS versions you want to support:

The DefaultSecureProtocols registry entry can be added in the following path:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\WinHttp

On x64-based computers, DefaultSecureProtocols must also be added to the Wow6432Node path:

HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Internet Settings\WinHttp

The registry value is a DWORD bitmap. The value to use is determined by adding the values corresponding to the protocols desired.

DefaultSecureProtocols Value Protocol enabled
0x00000008 Enable SSL 2.0 by default
0x00000020 Enable SSL 3.0 by default
0x00000080 Enable TLS 1.0 by default
0x00000200 Enable TLS 1.1 by default
0x00000800 Enable TLS 1.2 by default

For example:

The administrator wants to override the default values for WINHTTP_OPTION_SECURE_PROTOCOLS to specify TLS 1.1 and TLS 1.2.

Take the value for TLS 1.1 (0x00000200) and the value for TLS 1.2 (0x00000800) then add them together in calculator (in programmer mode), the resulting registry value would be 0x00000A00.

–jeroen

Posted in .NET, Delphi, Development, Power User, Software Development, Windows, Windows 7, Windows Server 2008 R2 | 2 Comments »

Historic storage prices: graphs and tables

Posted by jpluimers on 2017/12/18

[WayBack] retired Dr John C McCallum keeps historic information (prices, speeds, …) of computing stuff (storage, CPUs) since the 1950s on his web-site in table and graph forms:

What I like is the deviations in the graphs that show local phenomena.

This post is also a reminder to see what happened after this news item got published a year ago: [WayBack‘Prijzen ssd’s blijven komend kwartaal stijgen’ – Computer – Nieuws – Tweakers

–jeroen

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Posted in History | Leave a Comment »

Search in Google+ – Computer – Google+ Help

Posted by jpluimers on 2017/12/18

I forgot how long it took them and how frustrating searches were without the new search operators, but they finally are there. So you don’t have to click again for the advanced options, I’ve quoted them below.

So earlier this year Google sort of restored the classic search (Remember when G+ search was useful? It again is. « The Wiert Corner – irregular stream of stuff) making it on par with the 2013 [WayBack] Search tips within Google Plus – WebSIGHT Hangouts and now they finally topped it.

Yay!

Details:

Lars Fosdal made a nice concise list of it.

–jeroen

Lars Fostal (with some minor additions from me):

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Posted in G+: GooglePlus, Google, Power User, SocialMedia | Leave a Comment »

 
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