Telnet protocol is no longer producing log messages

[t3chn0m4g3]

Connection via tcp/23 to Glutton works fine:

telnet 172.20.254.168
Trying 172.20.254.168...
Connected to 172.20.254.168.
Escape character is '^]'.
Username: test
Password: test
welcome
> ls
> ls
> ls
> ^]
telnet> quit
Connection closed.

However, for some reason, the telnet handler only logs an error:

{"time":"2025-08-05T11:14:11.402929193Z","level":"ERROR","msg":"Failed to handle TCP connection","sensorID":"3e5715d6-b434-46e2-bf96-9da179301262","error":"EOF","handler":"telnet"}

In case you need further info, let me know (currently testing Glutton within T-Pot)

[glaslos]

The Telnet protocol is very chatty, and I set the logging to debug for individual commands. What kind of log messages would be desired from Telnet?

[t3chn0m4g3]

Basically at least the typical fields, i.e. username, password, src_ip, dest_ip, etc. as part of the connection establishment and login. And capturing payloads from wget curl commands.

Currently (699303d) telnet and other protocols are mostly logging errors except for spicy-http.