How to get and renew a let's encrypt certificate for FTPS without a domain?

Question

linux

I'm setting up an FTPS server.
The server will be published from the Internet not by domain, but by ip:port
How, in this case, is it correct to obtain and configure the let's encrypt certificate?
The self-signed certificate does not roll. You need a trusted CA.

CentOS 7.8.2003
vsftpd 3.0.2

Answer 1

No way, certificates are issued for domains, not IP addresses

Answer 2

I recommend SFTP - no messing around with vsftpd, plus effortless encryption.
If nevertheless FTPS - enough self-signed certificate.

Answer 3

https://bitbucket.org/Drobkov/userplus-webserver-u...
Uncomment the encryption section and FTPS will work. This is already there by default.
LE certificates are issued for domains.

Answer 4

You can't get an IP certificate. (Technically - you can, there is a possibility, but they are not released)