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Questions tagged [telnet]

Telnet is a client-server protocol used to allow communication between computers in a network.

424 questions
468
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5 answers

How do I exit telnet?

I start telnet by telnet host port. How do I stop it in Windows? Shockingly, Ctrl+C doesn't work.
Val
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130
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6 answers

How to telnet to an IP address on a specific port?

Can anyone tell me how to telnet to an address using a specific port? I've tried the following: telnet 10.1.1.55 I suppose a route just hasn't been set up between the two hosts? What I am trying to do is this. We have a medical device – a…
Booksman
83
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5 answers

Can the telnet or netcat clients communicate over SSL?

I would like to test client connections with IMAP over SSL, HTTPS, and other secure text-based Internet protocols over SSL/TLS, the same way I would using telnet or netcat if they were not tunneled over a secure protocol. Is there a way to get…
user553702
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33
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1 answer

What is the difference between telnet and netcat?

I am looking for an explanation where I can find the difference between telnet and netcat. In which cases should I use telnet and netcat? What a telnet can do that netcat can not do and vice versa? I tried to get the answer from the Internet but it…
rbashish
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29
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5 answers

How to generate UDP packet

I want to generate UDP packet to test a program, something equivalent to using telnet to test TCP port (Can telnet generate UDP packet?) How can I do this?
Lydon Ch
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25
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7 answers

How do I quit telnet without using standard Ctrl+] combination?

The title says it all. Note that I'm using a non-US layout, Norwegian, so I can't create the Ctrl+] combination. I've found the trick before, but can't find it.
Trygve Laugstøl
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23
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3 answers

'telnet' is not recognized as an internal or external command,operable program or batch file

I'm working on an InfoSec exercise, specifically sending emails in cmd that makes use of telnet. Unfortunately, I can't start it. I'm receiving the "'telnet' is not recognized as an internal or external command,operable program or batch file." from…
user311226
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23
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5 answers

Windows equivalent of ssh - how to connect to a remote machine and access command line?

I'm having a difficult time coming up with a solution to extend a framework that was designed for *nix machines over to windows. The framework currently runs from one *nix server and ssh's out to other *nix servers and performs a bunch of different…
user797963
22
votes
1 answer

Who logged into my printers?

This April 1st, someone logged into the printers and changed the ready screen to "vote for josh" on numerous HP LaserJet printers. I know that they must have logged in via telnet. And I found this article about how to perpetrate this…
j0h
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18
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5 answers

Is there a telnet utility for windows?

Is there a simple telnet command line utility for Windows 7? I am used to the telnet command that is built into UNIX, but I can't seem to find one for Windows that can be used similarly.
ewok
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18
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2 answers

How to type non-printable ASCII characters in Mac OS X Terminal?

To communicate with a serial-type device over a telnet socket, I need to type the null character (ASCII 0) and all other non-printable ASCII characters. On Windows, you hold ALT and type the ASCII code. How do I do this on Mac OS X?
davidcann
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16
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2 answers

Closing telnet connection gracefully from session mode itself without going to telnet prompt

a normal telnet connection is like this: telnet localhost 22 Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. SSH-2.0-OpenSSH_4.2 ^] telnet> close Connection closed. I want to close it from telnet session itself without coming…
Kumar Alok
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15
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2 answers

How to stop and detect the fork bomb

#include #include int main() { while(1) fork(); } This is the code for a fork bomb. In our college, we connect via telnet i.e client serving protocol. Some 100 systems are connected to server. Suddenly we saw the…
Rajesh M
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13
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8 answers

Save me from gibberish terminal

While logged in to a remote ssh session, sometimes I do cat to the wrong file (a binary or a diretory) and the display converts to gibberish. The only way out is to close the terminal and open a new one, which frustrates me because usually there is…
flybywire
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13
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6 answers

where is the '^]' character on an azerty keyboard?

I am currently using telnet and i need to do an escape character (SMTP), where is this character on an azerty keyboard? (linux ubuntu).
Sylario
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