On Fri, 28 May 2021, raf wrote:
It's also a horribly insecure protocol; I've even disabled it on my LAN
(SSH is your friend).
telnet might still be useful for debugging other services (that have no
authentication), although probably nothing that nc/nc6 can't do. but
yes, port 23 should certainly be avoided like something proverbial.
Yeah, my router uses it for maintenance, but that's the only Telnet server
here; I've even disabled the external maintenance port (the password is
hardly a secret) so my ISP will have to ask me nicely if they need it.
-- Dave
