Telnet? Really?
From 2009 or so within the US DoD networks, telnet (and ftp) services were generally not allowed. There were exceptions, nearly all ftp from non-DoD data providers, and these were addressed by establishing hardened proxy servers or DMZs where traffic could be examined and transferred securely for internal use. In later years, the screws were tightened several times a year in a continuing effort to weed out remaining exceptions.along with ftp.
It exceeds my ability to understand use of telnet for administration, or enabling the telnet service on a network exposed to or reachable from the public Internet.
Biting the hand that feeds IT
