Have you ever been wondering how to log automatically to the telnet sessions to avoid typing password every-time you open a new session?


Lets say that you have a default username and password for all devices on the network (cisco-routers)

username1
password1

so you open a terminal and type telnet 10.1.1.2 the terminal asks you about the username and password.


root@laptop# telnet 10.149.100.3
Trying 10.149.100.3...
Connected to 10.149.100.3.
Escape character is '^]'.

Username: username1
Password: ******


Do you have any idea how to force ubuntu to fill those fields automatically for us? There is a function in Win program secure CRT where you can sepecify fields expect: Username, and Password, then you can insert your credentials and Secure crt will log you every time automatically.

Is there anything like this which can be used in Ubuntu Gnome-terminal please?
Some kind of automatic login/script/settings of telnet or terminal?

Thanks,
Floorripper

nothing to do with networking. moved to Linux - Newbie.

You can look at expect to automate stuff like this, although AFAIR most telnet clients will accept a pipe in.

alternatively, stop running telnet. 1993 called, they want their software back etc... use ssh with preshared keys.

2 members found this post helpful.

Hello acid_kewpie,

You are absolutely right about the telnet, but there I do not have an alternative, I cannot convince company to get rid of the telnet, so I have to live with that.

Do you have any ideas how that can be achieved? The automatic logon?

I was also thinking about mapping keys to send text string:

(username/npassword)

username
password

so then when I press F5 terminal will send text to the window and I can be logged in.
But I have played with dumpkeys. loadkeys. crickey and so one more than week, but I was not able to get results from that. I am such a newbie in Linux. I could not find any working guide how to accomplish this even written program for that.

Any ideas please?