30 April, 2021

SSH from Linux to Mac

 On the Mac: enable remote login

# sudo systemsetup -getremotelogin

If the result if "remote login is off", then turn it on:

# sudo systemsetup -setremotelogin on

Now the users on the system are able to log in. You have to log in via your user name. But what is it. On the Mac try this in a terminal:

# whoami
# arwen

Then you can read your username, and log on:

# ssh arwen@192.168.0.123

Based on this article.


On the linux system

Enable openssh server, see this article. It's from Arch Linux, but here the actual distro does not matter, since we work in the terminal. 


Concerning the systemsetup

Actually the systemsetup is a powerfull swiss knife for the system administrator. Read the man page.

26 April, 2021

[SOLVED] Zoom 5.6.4 and MacOS 11.2.3: Zoom cannot share screen


Work in progress - trying to solve the problem: to share screens from MacOS on Zoom:

During today's zoom session with a class there were several issues:

  • In order to enter Zoom I had to update Chrome.
  • In Zoom I could not share any screens
Of course this fact was quite annoying during an online teaching session.

The problem is "well know" [sic] on Big Sur. I have the problem, because I updated my system (as you're supposed to).

On Zoom you find this page with this recipe:


Settings > Share Screeen > Advanced looks like this, and TCP-connection is marked:



Result: TCP-share no success
Unfortunately the recipe does not solve the problem.

MacOS makes Zoom useless from a MacOS presenter point of view.

Tried: Update Zoom
There was a new version of Zoom. Found it in the menu zoom.us > Check for updates. 
I hope that this update will do the trick.
@Zoom: some sort of automatic notification on updates would help. 

Result: Does not work.

Solution
The problem was probably MacOS related. After updating to macOS "Big Sur" 11.3 Zoom's screensharing was ok again. 

Zoom error: Chrome App not found


 

Zoom could not launch, but some threads in blogs mentioned, that Chrome might be the problem. Not Zoom. After a Chrome update, everything worked just fine. It's not a Zoom issue after all. 


17 April, 2021

Boss GT-1 and Orange Crush's fx-loop

 Here and now I tend to use the Boss GT-1 in the effect-loop. Sometmes with a t-wah, even though experts would say that it should be in front of the amp. All time-based effects - like chorus, flanger, delay etc. will produce a clear sound in the fx-loop.

Generally I use the dirty channel, so all fuzz and distortion noise is made by the Orange amp. That's the real strength of this amp - the dirty channel is wonderful. I don't use the reverb on the amp. 

I turn off all amp simulators and distortion on the GT-1.

Reverb and delay should be added via the Boss GT-1.

If I add Boss GT-1 in front of the amp the result is more "muddy". That's why I prefer this solution.

So my sound recipe is simple: use the GT-1 where it shines - and let the Orange Crush 35 rt shine with the ever lovely dirty channel.

09 April, 2021

GPG: backup and restore your keys

 Risan has a very clear and informative blog post here. In this post you'll learn how to export the keys - and import them somewhere else. As with any other key in the house: keep it safe.

Risan's article is meant for Unix systems. However, Linux is a close relative. The same principles apply.