I thought this was going to be about Winlink for some reason..

I was thinking SailMail, which is a shortwave system for sending mail to small sailboats with limited electrical power.

This also bit me. I thought I was in the clear not using anything with outdated CA keystores. Turns out that some TLS implementations don't trust the connection if the server provides an expired CA in the certificate chain.

This includes the Nextcloud client for Windows and the DNS over TLS implementation in Android 11.

Adding the argument --preferred-chain "ISRG Root X1" to certbot fixes this by not chaining the expired CA X3...

My Apache server is fine speaking HTTP/2 over port 80:

  curl -v --http2 --http2-prior-knowledge http://localhost
  * Connected to localhost (::1) port 80 (#0)
  * Using HTTP2, server supports multi-use
  * Connection state changed (HTTP/2 confirmed)
  * Copying HTTP/2 data in stream buffer to connection buffer after upgrade: len=0
  * Using Stream ID: 1 (easy handle 0x559a7c6545c0)
  > GET / HTTP/2
  > Host: localhost
  > user-agent: curl/7.74.0
  > accept: */*
  > 
  * Connection state changed (MAX_CONCURRENT_STREAMS == 100)!
  < HTTP/2 301 
  < date: Fri, 06 Aug 2021 11:16:05 GMT
  *snip*

Sadly none of the services that I reverse proxy through Apache support HTTP/2..

I got the pop-up a week back or so. I uploaded a photo of my drivers license with everything redacted except my name and date of birth and clearly watermarked it with the purpose and current date.

It was accepted automatically within a few seconds. Can't really complain.

Get the mic close to your mouth and turn down the gain. This will also increase the quality

The most important thing is to have the microphone close to your mouth. There is nothing more annoying than listening to echo-y voice.

The mic even have to be that expensive. I use a cheap dynamic mic from ebay with a windscreen and a mic arm and it sounds fine.

> I use a cheap dynamic mic from ebay with a windscreen and a mic arm and it sounds fine.

How do you know what it sounds like?

How do you know how good you sound to other people compared to if you were speaking through a good condenser mic?

Open voice recorder, record, say things, listen.

Plus multiple services now offer test calls/contacts where you can open a voice call, say things, and then listen back to how the other side hears it.

Put on headphones, linked to your phone, mute the phone mic (do not skip this step), and hold a video call with yourself between your computer and your phone.

Make your own zoom call and record it...

Quality supercardioid microphone will reject echo well enough for most rooms and a meter or two distance. That is usually enough distance to not typically require a pop filter, this giving improved clarity.

Hypercardioid "shotgun" works too as long as its back is placed far enough off a wall, however these tend to have sound coloration.

It just so happens that most microphones are the less directional cardioid. Or worse, omnidirectional.