[aprssig] APRS-IS: frames bypassing server filter

[Heikki Hannikainen]

On Wed, 15 Jul 2020, spam8mybrain via aprssig wrote:

> Are there any alternate domain names in aprs2.net that indicate only 
> UDP-supporting servers, the way ssl.aprs2.net indicates only servers 
> supporting APRS-over-TLS?

No. The main rotate.aprs2.net will only contain servers which do support 
HTTP uploads of positions, but it doesn't require UDP support. Maybe it 
should.

As such I'm not a great fan of the UDP submission method due to the 
inherent security issues of UDP one-way flows (they can be spoofed since 
there's no 3-way handshake), and the classic UDP joke about the other 
person not getting it.

   - Hessu, OH7LZB/AF5QT