The Wiert Corner – irregular stream of stuff

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

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Is the era of management over? | World Economic Forum

Posted by jpluimers on 2018/01/12

Hopefully the next few years will finally show what the incremental software development and evolutionary management has been trying to advocate since the late 1950s and 1970s: hierarchies do not work and purpose works better for the vast majority than being in a triangle.

The first slide below is from Thoughtworks who has been doing these changes for several decades now.

Traditional hierarchies are giving way to more open and creative workplace cultures.

[WayBack] Is the era of management over? | World Economic Forum

That’s the only way to cope with complexity as talent dilutes in growing organisations.

Via:

–jeroen

Posted in Agile, Development, LifeHacker, Power User, Software Development | Leave a Comment »

Reminder to self: Sort out empty (zero size) Icon? files in Google Drive folder on OS X and Windows

Posted by jpluimers on 2018/01/12

It looks like when syncing folders between Mac OS X (MacOS X?) and Windows, many directories get empty Icon? files have a size of 0 bytes.

None of these directories had custom icons, so I’m inclined to remove them all from the Google Drive folder:

find . -name 'Icon*' -size 0 -print0 | xargs -0 rm

as [WayBack] Didier Trosset answered at [WayBack] How to delete many 0 byte files in linux? – Stack Overflow

Before I do that, I need to read these in more detail:

–jeroen

Posted in Apple, Google, GoogleDrive, iMac, Mac, Mac OS X / OS X / MacOS, MacBook, MacBook Retina, MacBook-Air, MacBook-Pro, MacMini, OS X 10.10 Yosemite, OS X 10.11 El Capitan, OS X 10.9 Mavericks, Power User | Leave a Comment »

Proxmox – recovering a Windows 7 machine having “Missing operating system”

Posted by jpluimers on 2018/01/12

This is not what you like when you reboot a VM in Proxmox:

Booting from Hard disk...
Missing operating system

Booting from Hard disk... Missing operating system

Booting from Hard disk… Missing operating system

This case was a Windows 7 UK Professional x64 SP1 virtual machine.

Luckily the ISO is at https://archive.org/download/en_windows_7_professional_with_sp1_x64_dvd_u_676939_201606/en_windows_7_professional_with_sp1_x64_dvd_u_676939.iso via https://archive.org/details/en_windows_7_professional_with_sp1_x64_dvd_u_676939_201606 (later I found out I had the image in my backup vault as well).

I put that one in /var/lib/vz/template/iso so proxmox will automagically provide it in the local storage of iso images.

Now for some screenshots some based on what I learned at [Archive.is] How to use System Recovery Options for repairing Windows Vista or 7 installations:

Read the rest of this entry »

Posted in Power User, Proxmox, Virtualization, Windows, Windows 7 | Leave a Comment »

badssl.com

Posted by jpluimers on 2018/01/11

I wish I had bumped into this when it got released in 2015: [WayBack] badssl.com hosted in the cloud and maintained by two people from Google and Mozilla.

Where ssllabs.com is for checking server-side certificates, this one is for checking clients against many, many (did I already write MANY?) server side configurations both good (with a varying set of security settings like cyphers and key exchanges) and bad.

One of the bad ones is expired.badssl.com which your clients should not be able to connect to without throwing a big error.

Sources are at [WayBack] GitHub – chromium/badssl.com: Memorable site for testing clients against bad SSL configs.

Before using, please read their

Disclaimer

badssl.com is meant for manual testing of security UI in web clients.

Most subdomains are likely to have stable functionality, but anything could change without notice. If you would like a documented guarantee for a particular use case, please file an issue. (Alternatively, you could make a fork and host your own copy.)

badssl.com is not an official Google product. It is offered “AS-IS” and without any warranties.

–jeroen

Posted in Communications Development, Development, HTTP, https, Internet protocol suite, Security, Software Development, TCP, TLS, Web Development | Leave a Comment »

.— . .-. — . -.

Posted by jpluimers on 2018/01/11

Happy “Learn Your Name in Morse Code Day”

–jeroen

Audio via [WayBack] https://morsecode.scphillips.com/translator.html

Posted in Fun | Leave a Comment »

ACME TLS-SNI-01 validation disabled due to vulnerability – Incidents – Let’s Encrypt Community Support

Posted by jpluimers on 2018/01/11

Now that so many sites depend on LetsEncrypt: maybe it is time for a second one.

We’ve received a credible report of a problem with ACME TLS-SNI-01 validation which could allow people to get certificates they should not be able to get. While we investigate further we have disabled tls-sni-01 validation. We’ll post more information soon.

Source: [Archive.is] ACME TLS-SNI-01 validation disabled due to vulnerability – Incidents – Let’s Encrypt Community Support

Via:

–jeroen

Posted in Encryption, Let's Encrypt (letsencrypt/certbot), Power User, Security | Leave a Comment »

19 Tips For Everyday Git Use

Posted by jpluimers on 2018/01/11

Great set of tips; I’ve included to intro and ToC here so it’s easier for me to find, but all the details are at [WayBack] 19 Tips For Everyday Git Use. For each paragraph, the ToC lists the relevant command. The article itself also contains some very insightful animated images of which I included one below to get an impression.

Read the rest of this entry »

Posted in Development, DVCS - Distributed Version Control, git, Source Code Management | 1 Comment »

Reminder to self – Fiddler for OS X Beta

Posted by jpluimers on 2018/01/11

Reminder to self: [WayBack] Fiddler for OS X Beta as it’s been on my list since about a year ago: Fiddler for OS X Beta « The Wiert Corner – irregular stream of stuff.

Note that reading the cerficicates can be done in a more simple way for the Current version of Mono:

/Library/Frameworks/Mono.framework/Versions/Current/bin/mozroots --import --sync

I forgot in which version the Mono installer has Current linked to the most recently installed Mono version but it works well.

Executing should then be somethig like this:

/Library/Frameworks/Mono.framework/Versions/Current/bin/mono ~/bin/fiddler-mac/Fiddler.exe

I expect quite some bit of trouble decrypting HTTPS [Arvhive.is] as that was troublesome on Windows in the early Fiddler days as well.

In case of trouble, there is always Fiddler Ideas: Customer Feedback for Fiddler by Telerik . Add a new product idea or vote on an existing idea using the Fiddler by Telerik customer feedback form via [WayBack] Tsviatko Yovtchev: “@jpluimers @ericlaw https://t.co/lRNXC88M1b is our feature suggestion/issue tracker portal. Fiddler itself notifies on new versions.”

Back to the reminder: [WayBack] Fiddler for OS X Beta.

Direct download https://telerik-fiddler.s3.amazonaws.com/fiddler/fiddler-mac.zip.

Downloading Fiddler for OS X Beta…

If your download does not start, please [WayBack] click here to retry

Getting started

  1. If you don’t have the Mono framework installed on your Mac

    Please download it from [WayBack] http://www.mono-project.com/download/#download-mac and install it. If you already have it installed, ensure you’re running the latest version.

  2. If you just installed Mono

    Please open Terminal and type in:

    /Library/Frameworks/Mono.framework/Versions/<Mono Version>/bin/mozroots --import --sync

    (The Mono framework has its own trusted root certificates store. Currently (at mono version 4.2.4) this store remains empty after installing Mono on OS X. Fiddler uses the certificates in this store to validate the certificates of the websites visited. So you need to populate this store with a set of commonly trusted root authorities to avoid getting constant certificate warnings from Fiddler. The mozroots tool imports trusted authorities from the Mozilla LXR. )

  3. Extract fiddler-mac.zip to a folder you have write access to.

    It is recommended that the full path to Fiddler install folder does not contain any Windows path illegal characters. (At present it is possible that some Fiddler functionality, e.g. various file exports or Fiddler Script won’t handle such paths.)

  4. Open Terminal and navigate to the folder you extracted to in step 3.

  5. Type mono Fiddler.exe in Terminal.

To further understand the benefits and limitations of Fiddler for OS X please visit [WayBack] this blog post.

–jeroen

Posted in Development, Fiddler, Software Development, Web Development | Leave a Comment »

A way to bypass a Chrome interstitial page is to type a secret keyword…

Posted by jpluimers on 2018/01/10

Some sites do not have their TLS security set- up correctly. You can get around the page that Chrome then displays. This is called the “interstitial bypass”, you should use it with great care (not like one of the sites I visited a year ago that got themselves a nice ransomware attack), for instance on machines you can dispose off.

The mechanism has changed over time, from a simple button to a passphrase that changes every now and then.

Some historic links on this:

Via:

A way to bypass a Chrome interstitial page is to type a secret keyword. Until today, this not-no-secret keyword was “badidea”. And it just changed. So h… – François Beaufort – Google+

–jeroen

Read the rest of this entry »

Posted in Chrome, Google, Power User | Leave a Comment »

xs:choice element to C# – Google Search

Posted by jpluimers on 2018/01/10

Some links via xs:choice element to C# – Google Search.

I need them one day to better understand xsd:choice mapping to C# for both XSD and WSDL usage.

I have the feeling that the WSDL and XSD importer are trying to be smart, so for instance when you have multiple choices that come down to a common basic type like a derivation from xsd:string, it makes to two properties: a C# enumeration to select the type and a C# string value for the content referencing the enumeration through a XmlChoiceIdentifierAttribute.

–jeroen

Posted in .NET, C#, Development, Software Development | Leave a Comment »

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