Posted by jpluimers on 2021/09/08
By now, probably newer versions have come out, but this should give a rough indication of the 2019 state of [WayBack] PowerShell OS Support Matrix – mohitgoyal.co:
For 5.1 and lower, you can find the prerequisites in [WayBack] Windows PowerShell System Requirements – PowerShell | Microsoft Docs.
–jeroen
Posted in .NET, CommandLine, Development, PowerShell, PowerShell, Scripting, Software Development | Leave a Comment »
Posted by jpluimers on 2021/09/08
Interesting thread: [WayBack] SwiftOnSecurity sur Twitter : “I had this issue in my prev company network. QoS will drop ICMP and you’ll chase your tail. If you want to find out if a network service works, test the service. If you want to know if TCP works, use TCP.… “
So:
tcpping and tcptraceroute for the win![WayBack] Zimmie on Twitter: “It is perhaps worth noting: traceroute does not generally use ICMP. Instead, it uses this horrific UDP port range with a different port for every probe at every hop. 30 hops? That’s 90 different UDP ports you just tried. Makes its value questionable at the best of times.…”
Related:
–jeroen
Posted in *nix, *nix-tools, Communications Development, Development, Power User, TCP, UDP | Leave a Comment »
Posted by jpluimers on 2021/09/07
If you get [WayBack] “A parameter cannot be found that matches parameter name ‘PassThru'” as PowerShell error, then likely the PowerShell version is too old to support -PassThru, which likely means you have are running pre-Windows 10 version.
PowerShell 3 (introduced in 2012) added the -PassThru parameter that allowed to chain multiple commands from one list pipe.
Another reason for the error might be that the command you use does not support the -PassThru parameter.
To check which commandlets support -PassThru, use the below command (the output is from a Windows 8.1 machine running PowerShell 4.0).
Posted in .NET, CommandLine, Development, PowerShell, PowerShell, Software Development | Leave a Comment »
Posted by jpluimers on 2021/09/07
After bumping into yet another occasion where a tool did not properly save after saving: [WayBack] checkdigits on Twitter : “CTRL+S is the new carriage return. Type line of code, CTRL+S to save, start new line of code. #NotParanoid 😬…”
in a response to [WayBack] Dare Obasanjo on Twitter: “No one I know who works on software for a living trusts it to do anything important. That people assume software can be trusted for important things like voting or driving cars when I can’t even trust my follower count is correct is the biggest trick we’ve played as an industry.… “
Posted in Development, Software Development | Leave a Comment »
Posted by jpluimers on 2021/09/07
Long interesting thread at [WayBack] Thread by @sleevi_: “@SwiftOnSecurity So, some history: It used to be folks would get certs for “localhost”, just like they would from “webmail”, despite no CA e […]”
In 2019, applications were still using tricks (including shipping private keys!) to “securely” access https://127.0.0.1 on some port.
This should have stopped in 2015, but hadn’t. I wonder how bad it still is today.
Related:
- SubjectC=AU, O=Atlassian Pty Ltd, L=Sydney, ST=New South Wales, CN=atlassian-domain-for-localhost-connections-only.com
- Serial NumberA:3E:93:53:0E:74:53:AE:CB:40:BA:20:10:12:F8:FB
- IssuerC=US, O=DigiCert Inc, OU=www.digicert.com, CN=DigiCert SHA2 High Assurance Server CAValidity11 May 2017 — 15 May 2020
Result for atlassian-domain-for-localhost-connections-only.com/A with DNSSEC validation:
{ "Status": 0, "TC": false, "RD": true, "RA": true, "AD": false, "CD": false, "Question": [ { "name": "atlassian-domain-for-localhost-connections-only.com.", "type": 1 } ], "Answer": [ { "name": "atlassian-domain-for-localhost-connections-only.com.", "type": 1, "TTL": 1620, "data": "127.0.0.1" } ] }
Assessment failed: IP address is from private address space (RFC 1918)
Posted in Communications Development, Development, DNS, HTTP, Internet, Power User, Software Development, TCP, TLS | Leave a Comment »
Posted by jpluimers on 2021/09/02
For my link archive:
Some DNS over HTTSP providers support dns-json, which Cloudflare delivers non-pretty printed.
Posted in Cloud, Cloudflare, Communications Development, Development, DNS, Encryption, HTTP, https, HTTPS/TLS security, Infrastructure, Internet, Internet protocol suite, Power User, Security, Software Development, TCP, TLS | Leave a Comment »
Posted by jpluimers on 2021/09/02
Wondering what people now are using to store video uploads on cheap and fast network sites: [WayBack] comex on Twitter: “Hiding video streams inside PNGs uploaded to Google Drive: https://t.co/rmK8jicJYl (But what does the m3u8 look like? How does it get the browser to skip the PNG header?)” explained the 2019 situation:
–jeroen
Posted in Development, Media, Media Streaming, Power User, Software Development, Video | Leave a Comment »
Posted by jpluimers on 2021/09/02
It is always fun to see how Sudoku solving algorithms are created and implemented. This is no exception: [WayBack] Coming Back to Old Problems: How I Finally Wrote a Sudoku Solving Algorithm – DEV Community 👩💻👨💻
For a visual Sudoku solver, I usually take [WayBack] Sudoku Solver by Andrew Stuart. Shows the logic behind solving Sudoku square by square which is part of [WayBack] SudokuWiki.org – Getting Started having many visual explanations on how to solve these puzzles, for instance:
It’s a kind of sudo ku, but visually and never failed me solve one.
–jeroen
Posted in Algorithms, Development, Python, Scripting, Software Development | Leave a Comment »
Posted by jpluimers on 2021/09/01
TL;DR:
Source: Maak webwinkels ook toegankelijk voor mensen met een beperking (behind a sign-in wall, sometimes this link or visiting via the below Twitter posts works)
Via:
–jeroen
Posted in accessibility (a11y), Development, LifeHacker, Power User, Web Development | Leave a Comment »
Posted by jpluimers on 2021/09/01
From a while back, but still relevant: [WayBack] Ryan O’Horo sur Twitter : “Computerphile with a clear and complete explanation of how the block cipher AES works and how it’s different from older ciphers. Background https://t.co/WyvYpM5JJN SP Networks https://t.co/MGILCxkqUR AES Cipher https://t.co/ReHpnCBTvI… https://t.co/VbZomPrOow”
Videos below the fold
–jeroen
Posted in Development, Encryption, Hashing, Power User, Security, Software Development | Leave a Comment »
The Wiert Corner - irregular stream of stuff 