Suspicious Link In Docs

[LexNastin]

Hey, I was looking at docs, and in the egress section I saw a link that looked suspicious to me (step.esa.int). It was added by @fl42 if they have an explanation. If it's nothing malicious, what does teslamate use it for? Thanks in advance!

teslamate/website/docs/faq.md

Lines 78 to 87 in 2d5070b

	The following flows must be authorized (egress traffic and DNS resolution):
	HTTPS (TCP/443)
	auth.tesla.com
	owner-api.teslamotors.com
	streaming.vn.teslamotors.com
	nominatim.openstreetmap.org
	HTTP (TCP/80)
	step.esa.int

[fl42]

If I recall correctly, this is used to retrieve elevation based on GPS coordinates.
esa.int is the website of the European Space Agency.
EDIT : Check https://github.com/adriankumpf/srtm/blob/ffa0395208f270ef86bde0064578f240b13178c1/lib/srtm/source/esa.ex#L11

[brianmay]

This is the commit: 0dec13c

It does appear that Teslamate uses the srtm library which in turn uses this service.

[LexNastin]

Ahhh, thanks so much! Completely forgot to check the libraries. Thanks!