ssh2telnet

Proxy ssh connection into telnet.

Options

$ ssh2telnet -h
Usage:
  ssh2telnet [OPTIONS]

Application Options:
  -a, --addr=            Address to listen (default: localhost:2222)
  -k, --key=             Path to the host key
  -l, --login            Enable auto login
      --login-prompt=    Login prompt (default: "login: ")
      --password-prompt= Password prompt (default: "Password: ")

Help Options:
  -h, --help  Show this help message

Basic Usage

Start a ssh server.

$ ssh2telnet -a :2222
Starting ssh server on :2222

Connect the server from another terminal. The specified username will be interpeted into the hostname. Now the proxied telnet session is attached to the target host.

$ ssh localhost -p 2222 -l 192.168.1.1


User Access Verification

Username: vagrant
Password:


RP/0/RSP0/CPU0:R1#show clock
Thu Nov 11 00:00:00.000 JST
00:00:00:000 JST Thu Nov 11 2021

RP/0/RSP0/CPU0:R1#exit
Connection to localhost closed.

Auto Login

ssh2telnet also comes with the auto login feature. Start a ssh server with the --login option and specify --login-prompt and/or --password-prompt if necessary.

$ ssh2telnet -a :2222 -l --login-prompt 'Username: '
Starting ssh server on :2222

Connect the server from another terminal. The specified username will be interpeted into 'username@hostname'. Login password for the target host is also prompted afterward.

$ ssh localhost -p 2222 -l vagrant@192.168.1.1
vagrant@192.168.1.1@localhost's password:


RP/0/RSP0/CPU0:R1#show clock
Thu Nov 11 00:00:00.000 JST
00:00:00:000 JST Thu Nov 11 2021

RP/0/RSP0/CPU0:R1#exit
Connection to localhost closed.