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

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Archive for November, 2020

Keep alive SSH connection with server in MacOs Mojave – Ask Different

Posted by jpluimers on 2020/11/30

Reminder to self: check if this has been worked-around yet: [WayBack] Keep alive SSH connection with server in MacOs Mojave – Ask Different

In El Captain, to maintain active a SSH connection you should edit ~/.ssh/config file to add your additional rules.

nano ~/.ssh/config

To maintain active for 1 hour you should add:

Host *
   ServerAliveInterval 3600

I cannot recreate the same situation is MacOS Mojave, it continue to close connections after some minutes. Any suggestions about this?

Via: [WayBackAsk Different on Twitter: “Can you answer this? Keep alive SSH connection with server in MacOs Mojave #ssh”

–jeroen

 

Posted in Apple, Mac OS X / OS X / MacOS, Power User | Leave a Comment »

NOx value measurement is an indicator for much wider forms of pollution (was: Definitiv ein lesenswerter Artikel, trotz der plakativen Schlagzeile)

Posted by jpluimers on 2020/11/30

Basically:

In other words (and she’ll say that later in an interview): It’s not the NO2 limit we’re talking about here, it’s all the air pollutants we inhale day after day. The discussion about diesel bans and the reduction of NO2 emissions misses the real problem, because if only the NO2 is reduced and not the other pollutants, that does not help much.

Google translated from:

Mit anderen Worten (und das sagt sie auch noch später in Interview): Es ist gar nicht der NO2-Grenzwert, um den es hier geht, es sind die gesamten Luftschadstoffe, die wir Tag für Tag einatmen. Die Diskussion um Dieselfahrverbote und Reduzierung des NO2-Ausstoßes geht am eigentlichen Problem vorbei, denn wenn nur das NO2 reduziert wird und nicht die weiteren Schadstoffe, hilft das nicht viel.

[WayBack] Definitiv ein lesenswerter Artikel, trotz der plakativen Schlagzeile: > Es geht bei dem Grenzwert nicht nur um die Gesundheitswirkung des Reizgases NO2… – Thomas Mueller (dummzeuch) – Google+

–jeroen

Posted in About, History | Leave a Comment »

Android: measuring sound levels

Posted by jpluimers on 2020/11/30

Two Android apps I tried that work quite OK for measuring dBA or Sound Pressure Level:

Measuring sound levels is not easy, especially the calibration is important. That’s why professional devices are relatively expensive.

These are no full replacements for those professional devices, but the first comes close enough for me.

–jeroen

Posted in Android Devices, LifeHacker, Power User | Leave a Comment »

Compressing C:\Users\All Users\Microsoft\ClickToRun\ProductReleases

Posted by jpluimers on 2020/11/27

Microsoft keeps more and more under C:\Users\All Users\Microsoft\ClickToRun\ProductReleases (also accessible via C:\ProgramData\Microsoft\ClickToRun\ProductReleases or more precisely %AllUsersProfile%\Microsoft\ClickToRun\ProductReleases).

This can be huge, running into 10s of gigabytes, which – for todays cloud, VM and light-weight device based world – is huge.

Compressing seems to fail for me consistently, as I get “access denied” while compressing when elevating from Windows Explorer.

So this is a reminder to sort this out eventually.

These did not help yet:

I don’t dare deleting it:

Hopefully it is something explainable like the a virus scanner.

Later

Yup: it was the Avira Virus Scanner.

Somehow it has the Windows Explorer UI cause an “Access Denied” message to appear when elevating, but you can still compress files fine in a subdirectory with these steps:

Given a subdirectory named C:\SomeDir\A do this:

  1. pushd C:\SomeDir\A
  2. compact /c /s *.*
  3. cd ..
  4. compact /c A
  5. popd

It is not the first time I bump into Avira stuff (but I only blogged about it once, dumb me: VirusTotal: Avira marks a Delphi built executable als false positive), but the decision of using it was outside my control.

–jeroen

Posted in Power User, Windows, Windows 10 | Leave a Comment »

Aaron Tay on Twitter: “trying experimental Wayback Machine Chrome ext from @internetarchive . There’s usual find latest/earliest archived versions and “context”, which just checks whois, annotations from https://t.co/qlqDUJNkIa, tweets etc but “find cited books and papers” is only on wikipedia pages… https://t.co/QqFSQ2HJ3e”

Posted by jpluimers on 2020/11/27

On my list of things to try:

Source: Aaron Tay on Twitter: “trying experimental Wayback Machine Chrome ext from @internetarchive . There’s usual find latest/earliest archived versions and “context”, which just checks whois, annotations from Hypothes.is, tweets etc but “find cited books and papers” is only on wikipedia pages”

–jeroen

Read the rest of this entry »

Posted in Chrome, Chrome, Development, Google, Power User, Software Development, Web Browsers | Leave a Comment »