Registered as anet/ATEXSSTR, an Atex publishing-system service with no public spec.
IANA lists port 212 as anet, ATEXSSTR, registered by Jim Taylor of Atex, the newspaper publishing-system vendor. No specification was ever published and no general implementation exists, so the registration is the entire public record. It appears in /etc/services and therefore in scanner output. Anything found on 212 is unrelated to Atex.
Expose with care
A vendor registration with no documented protocol; fingerprint whatever is actually listening.
$ nc -vz TARGET 212Seen this on your network? Beige Box scans your Wi-Fi and shows every open port on every device — and its Ports tool links straight back here.
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Corrections or a missing port? Reply @rimrocksystems.