Mikrotik

RouterOS writes autosupout.rif after a crash and tells you to send it to MikroTik support. The file is zlib sections in a bit-reversed base64, and a short Python script turns it into the kernel oops, the log and the config. It also holds your secrets in plain text.

Instead of a public DDNS service, a small Flask app updates the router's A record: dnspython edits the zone file and bumps the SOA serial, paramiko uploads it and reloads the DNS server, and a JWT identifies the router.