As I need this one day: [WayBack] Tracing a packet journey using Linux tracepoints, perf and eBPF | Yet another enthusiast blog!
Via: [WayBack] Great read about bpf – Kristian Köhntopp – Google+
–jeroen
Archive for the ‘Power User’ Category
Tracing a packet journey using Linux tracepoints, perf and eBPF | Yet another enthusiast blog!
Posted by jpluimers on 2020/08/21
Posted in Linux, Power User | Leave a Comment »
Block or ignore someone – Computer – Hangouts Help
Posted by jpluimers on 2020/08/17
Blocking persons (for instance for sending you materials that in G+ would be a T.O.S. violation) is only possible by blocking them, not by reporting them.
Most hangouts users however do have a G+ account, so you can request a block there.
Relevant links:
- [Archive.is] hangouts.google.com
- [Archive.is] Block or ignore someone – Computer – Hangouts Help
If you don’t feel comfortable in a Hangout with someone, you can block them. When you block someone, they can see that you’re online but can’t send you Hangouts messages.
Tip: If you are contacted by strangers or spammers, choose who can contact you directly.
- [Archive.is] Manage your contacts – Computer – Hangouts Help
You can see your conversations, invites and contacts. Contacts that are online are at the top of the list with a green circle on their photo.
…
Let people contact you without an invite.
- [Archive.is] How do I report spam / nuisance hangout requests? – Google Product Forums
- [Archive.is] Report abuse on Google+ – Computer – Google+ Help
If you see something on Google+ that violates our User Conduct and Content Policies, you can report it. Violations might include: Bullying, threatening, or harassing someone Hate speech …
–jeroen
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Guidelines for representing your business on Google – Google My Business Help
Posted by jpluimers on 2020/08/17
For my link archive: [WayBack] Guidelines for representing your business on Google – Google My Business Help
–jeroen
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Posted in Google, GoogleMaps, GoogleSearch, LifeHacker, Local Guides, Power User | Leave a Comment »
Dirvish
Posted by jpluimers on 2020/08/17
I think it was Thomas Mueller pointing to this, but I’m not sure as I found it in a browser tab from long ago: [WayBack] Welcome to Dirvish
Dirvish is a fast, disk based, rotating network backup system.
With dirvish you can maintain a set of complete images of your filesystems with unattended creation and expiration. A dirvish backup vault is like a time machine for your data.
Dirvish was originally created by jw schultz .
Before starting, I want to read these:
- [WayBack] DirvishWiki – Dirvish wiki
- [WayBack] Dirvish Documentation
- [WayBack] DirvishTips – Dirvish wiki
–jeroen
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Copying photographic film with the Nikon D810 and a shoe box | Nikon Rumors
Posted by jpluimers on 2020/08/14
Cool idea:
Copying photographic film with the Nikon D810 and a shoe box by Anthony McKee (www.anthonymckee.com): While many photographers are keenly waiting for the new Nikon ES2 film digitising adapter set to arrive in stores, I have been making use of my own Nikon film copying kit that I put together a while ago using a Nikon
Source: [WayBack] Copying photographic film with the Nikon D810 and a shoe box | Nikon Rumors
–jeroen
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Firewall whitelist for Windows Update
Posted by jpluimers on 2020/08/14
In the end, this list worked on a Fritz!Box, but I still do not know which other subdomains and protocols they silently let pass:
windowsupdate.microsoft.com
*.windowsupdate.microsoft.com
*.update.microsoft.com
*.windowsupdate.com
download.windowsupdate.com
download.microsoft.com
*.download.windowsupdate.com
test.stats.update.microsoft.com
ntservicepack.microsoft.com
update.microsoft.com
*.update.microsoft.com
*.download.microsoft.com
windowsupdate.com
wustat.windows.com
login.live.com
mp.microsoft.com
*.mp.microsoft.com
www.update.microsoft.com
support.microsoft.com
www.msftconnecttest.com
Some source materials:
- First try:
- Later tries:
–jeroen
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Why do so many of the small heatsinks use 3M 9448A Double Coated Tissue Tape?
Posted by jpluimers on 2020/08/14
I wonder why so many of the small heatsinks you can buy on for instance Amazon or ebay, use 3M 9448A Double Coated Tissue Tape.
The 3M 8805 Thermally Conductive Adhesive Transfer Tape is so much better (or the twice as thick 3M 8810 Thermally Conductive Adhesive Transfer Tape).
The first is for just sticking, the second for sticking and heat transfer:
- [WayBack] 3M™ Double Coated Tissue Tape 9448A | 3M United States3M™ Double Coated Tissue Tape 9448A is a 0.15 mm double sided tape with a medium firm acrylic adhesive on a tissue carrier that provides dimensional stability, improved handling and ease of die-cutting and laminating. The adhesive provides excellent peel strength adhesion, with good high temperature holding power to a variety of surfaces.
- [WayBack] 3M™ Thermally Conductive Adhesive Transfer Tape 8805 | 3M United States[WayBack] 3M™ Thermally Conductive Adhesive Transfer Tape 8810 | 3M United States3M™ Thermally Conductive Adhesive Transfer Tape 8805 is designed to provide a preferential heat-transfer path between heat-generating components and heat sinks or other cooling devices (e.g., fans, heat spreaders or heat pipes)
Additional Information
The specialized chemistry of this tape renders them modestly soft and able to wet to many surfaces, allowing them to conform well to non-flat substrates, provide high adhesion, and act as a good thermal interface.
Examples of the wrong stuff:
- [WayBack] Black Aluminum Heatsink Cooler Cooling Kit for Raspberry Pi 3, Pi 2, Pi Model B+, 10 Pieces: Amazon.co.uk: Computers & Accessories
- [WayBack] Alumininium heatsinks with thermally insulating adhesive. – Raspberry Pi Forums
- [Archive.is] 8 Stück Aluminium VGA-RAM Kühler/Heatsink 18: AmazonSmile: Computer & Zubehör
–jeroen
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Roderick Gadellaa auf Twitter: “@ingnl Ik begrijp dat jullie gaan stoppen met TAN codes. Juich ik toe, 2FA met sms is behoorlijk lek. Maar nu moet ik jullie app gaan gebruiken. Ik werp 1 blik op de permissions die jullie app wil en denk: Neen.…”
Posted by jpluimers on 2020/08/12
[WayBack] Roderick Gadellaa auf Twitter: “@ingnl Ik begrijp dat jullie gaan stoppen met TAN codes. Juich ik toe, 2FA met sms is behoorlijk lek. Maar nu moet ik jullie app gaan gebruiken. Ik werp 1 blik op de permissions die jullie app wil en denk: Neen.…”
Reminder to self: check what permissions are needed now.
–jeroen
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PlantUML – Visual Studio Marketplace
Posted by jpluimers on 2020/08/12
This and built-in markdown support made the switch to Visual Studio code from Atom.io so much easier: [WayBack] PlantUML – Visual Studio Marketplace.
Atom.io was already on my list of tools to say good bye to: though a good project to show the versatility of the Electron Framework, over time – like Google Chrome – it had become a memory and CPU hog and a drag to use and update.
Integrating debuggers and other parts of the development life cycle involved too much fuzz, for which Visual Studio code (also known as vscode) was much easier from the start.
Probably Visual Studio code did not suffer from what the Dutch call Law of the handicap of a head start: it is much more responsive and versatile than Atom.io. Also the plugins – despite having come to the market later – feel way more mature in Visual Studio code than Atom.io.
Finally, the PlantUML support extension for vscode is so much nicer than in Atom.io, it for instance supports live updating and in addition to local rendering, rendering through a PlantUML server (see [WayBack] GitHub – plantuml/plantuml-server: PlantUML Online Server).
Source code is at [WayBack] GitHub – qjebbs/vscode-plantuml: Rich PlantUML support for Visual Studio Code.
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Posted in .NET, atom editor, Development, Diagram, PlantUML, Power User, Software Development, Text Editors, UML, Visual Studio and tools, vscode Visual Studio Code | Leave a Comment »
Comparing versions with wildcards and without them (for instance for semantic versioning)
Posted by jpluimers on 2020/08/12
For a project I’m going to be in need to compare version numbers.
I’m not sure yet if I need wildcards, or can leave them out (but for partial semantic versioning, I might need them).
Below a bunch of links that should get me started.
From a quick glance: versioning is hard, comparing even harder.
On versioning in general
- [WayBack] Why are version constraints combining comparisons and wildcards a bad idea? – Composer
- [WayBack] Compare Version Numbers with large inputs allowed – GeeksforGeeks
- [WayBack] Compare two Version numbers – GeeksforGeeks
- [WayBack] Re: RPM version comparison algorithm
- [WayBack] How Yum and RPM Compare Versions – Jason Antman’s Blog
Numeric versioning (usually without wildcards):
- [WayBack] algorithm – Javascript function to compare two versions – Stack Overflow
- [WayBack] java – Comparing version number strings (major, minor, revision, beta) – Stack Overflow
- [WayBack] versioning – Comparing two software versions in C# – Software Engineering Stack Exchange
- [WayBack] Comparing Version Strings in C++ | Sourcey
On semantic versioning (SemVer for short):
- [WayBack] Semantic Versioning 2.0.0 | Semantic Versioning
- [WayBack] GitHub – scottcorgan/compare-semver: Compare semver versions to many other semver versions
- [WayBack] Simple Versioning · GitHub: A simple, pragmatic versioning convention.In a sense, this is a subset of SemVer, but with slightly different semantics.
- [WayBack] Why Semantic Versioning Isn’t · GitHub – an essay – followed by a lively discussion – against SemVer which turns out to actually end in favour of SemVer
- [WayBack] Just published my smallest ever open source project – 1 unit (not counting the unit tests) … – Vincent Parrett – Google+
- [WayBack] GitHub – VSoftTechnologies/SemanticVersion: Semantic Version Parser for Delphi
- Nice discussion on
inversusCharInSetversusIsDigitversusIsInArray
- [WayBack] Semantic Version C# class · GitHub
- [WayBack] c# – Is there a NuGet package that contains a semantic version parser in .NET? – Stack Overflow
- [WayBack] Semantic Version Functions | sprig Useful template functions for Go templates.
- [WayBack] GitHub – zafarkhaja/jsemver: Java implementation of the SemVer Specification
- [WayBack] Semantic version utility · Issue #566 · stedolan/jq · GitHub
- [WayBack] semver: Basics
- [WayBack] GitHub – substack/semver-compare: compare two semver version strings, returning -1, 0, or 1
On the C# Version class (which handles most of semantic versioning except: leading zero’s, very large numbers, non-numeric release specifiers)
- [WayBack] validation – C# Compare two versions using wildcard – Stack Overflow
- [WayBack] c# – Compare version numbers without using split function – Stack Overflow
- [WayBack] Version.CompareTo Method (Object) (System) which does not regard undefined (-1) as wildcards by documenting
// A Version object contains four hierarchical numeric components: major, minor, // build and revision. Build and revision may be unspecified, which is represented // internally as a -1. By definition, an unspecified component matches anything // (both unspecified and specified), and an unspecified component is "less than" any // specified component.
- [WayBack] Version Class (System) The value of Version properties that have not been explicitly assigned a value is undefined (-1); Ordinarily, the Version class is not used to assign a version number to an assembly. Instead, the AssemblyVersionAttribute class is used to define an assembly’s version, as illustrated by the example in this topic.
Interesting idea, but not sustainable: using floating point values to compare versions:
On wildcards:
- 2008 [Archive.is] Matching Wildcards: An Algorithm | Dr Dobb’s: A simple wildcard text-matching algorithm in a single while loop
- 2014 [ Archive.is] Matching Wildcards: An Empirical Way to Tame an Algorithm | Dr Dobb’s: Optimizing and testing a wildcard algorithm to get 5x performance improvement.
Via: [WayBack] Anyone tips for a TVersion structure that supports at max quad digits or wildcards and comparison? Like 3.2 matching 3.2.5.7, but not matching 3.3.4.28 ? – Jeroen Wiert Pluimers – Google+
–jeroen
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The Wiert Corner - irregular stream of stuff 