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

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vimrc is not working in AIX

I just started to use AIX 7.1(I telnet to it) and the .vimrc I placed in ~ is not working. The contents of .vimrc: set showmode set number backspace=2 shiftwidth=8 No mode was ...
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Telnet-ing to alternative SMTP port: “No route to host”

At home is a Mac Lion Server running a mail server. I have a VPS thats used as relay for incoming mail, to prevent problems when my home server might go down. Because my ISP sometimes blocks port 25, ...
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How to use telnet in Windows Command Prompt?

I type this command in a Windows Command Prompt in XP. telnet microsoft.com 80 Connecting to microsoft.com appears and then telnet window opens, but there is nothing inside it. If I type any ...
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2answers
424 views

Windows 7x64: different feedback from Putty and command line client

I'm trying to telnet to a port on an Ubuntu server from a Windows 7x64 machine. When I use Putty it gives me a "Connection closed by remote host" error. When I use the windows telnet client from the ...
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1answer
1k views

Open port for Microsoft SQL database connection from outside the Windows7 computer

My Firewall seems to be blocking the connection from anywhere to my local MS Sql Server on my Windows7 development machine. On Linux and Mysql I could telnet the database ports and it gives response ...
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2answers
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PuTTY closes when opening SMTP over Telnet on certain server

I have PuTTY installed on Vista. When I set it to Telnet and put in a host name of SMTP2Go.com and port of 25 the window opens for a second not showing any text then closes. I also tried ports 2525, ...
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1answer
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Can not use telnet localhost

I can't use command telnet localhost, always get this error : Connecting To localhost...Could not open connection to the host, on port 23: Connect failed Even I have all ports allow ...
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2answers
5k views

Is enabling telnet a security concern?

Why is it that Vista comes with telnet disabled? If i enable it, is it a potential risk? Also, in the list there is "telnet client" and "telnet server". I'm wondering what's the difference between ...
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1k views

Using telnet with an username and a password

I'm trying to use telnet to access http://stream.twitter.com/1/statuses/sample.json but when I connect to it I get a 401 Unauthorized error. Being able to specify username and password would allow me ...
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Start movie playback on asys O!Play over telnet

I hope this is the correct stackpage to ask this question. I have an asus oplay mediaplayer next to my tv which offers a telnet interface. Now i have built a nice app that indexes my media library ...
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2answers
998 views

Why does telnet report “login: -h for super-user only.”?

I am not able to telnet in to localhost . [root@localhost ~]# telnet localhost Trying 127.0.0.1... Connected to localhost.localdomain (127.0.0.1). Escape character is '^]'. Red Hat Enterprise Linux ...
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381 views

Telnet fails to run properly when run from daemon process

When I call telnet to connect to daytime server from interactive shell, it works fine. However, when the same telnet call is issued from a shell script run by cron or some bash daemon process, it ...
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734 views

Cron fails to run bash script

I have bash script #!/bin/sh DTFILE=/etc/daytime.addr DTPORT=13 DAYTIME_ERROR=/tmp/dtm.err function daytime_error(){ if [[ -z $1 ]] then exit 1 fi if [[ -e $DAYTIME_ERROR ]] ...
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1answer
139 views

How to log telnet traffic reliably?

We have a pbx system that we can telnet into over the LAN. We want to just dump the log of messages (calls) to a file. We use Hyperterminal which can capture the txt to a file, but I need to do this ...
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7answers
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connect two computers together via a rs232 serial port

Wondering if anyone knows of a solution to connect with telnet/ssh through a rs232 serial port Edit: I am looking for a way to connect to computers together via a serial port. I want to be able to ...
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2answers
1k views

How to manually do a TCP handshake

Telnet can be used to manually do things that programs do automatically. When I connect to a server I noticed that it automatically does the 3-way handshake to establish a TCP connection. Can it be ...
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2answers
5k views

How to connect to `tcp://192.168.202.112:11053` by command line?

tcp://192.168.202.112:11053 I've ensured the service is on,but when telnet 192.168.202.112 11053,connection fails,why?
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2answers
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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.
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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 ...
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3answers
7k views

How to telnet into facebook chat

I was able to use facebook chat with an external application using the following information: First, find your Facebook username by going to http://www.facebook.com/your_user/. Next, Open ...
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4answers
272 views

Creating a command that compress a file and save it on a usb, but cannot detect the usb in linux

First of all I can't detect the USB on linux using the command line. I check the directory dev and still cannot find the usb. used the df command to check the usb. I plug and typed df and then unplug ...
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Can everything be done in Telnet?

Is it true that everything you do on the web such as web browsing and reading email you can do with Telnet?
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Automating telnet login and commands on a Mac

Currently I do something like this: telnet 192.168.0.3 23 username password cd /dir/ programname -s -g dosomething I want to do this with one step, the coolest would be to compile a program for ...
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933 views

Canyouseeme.org vs telnet <ip> <port>

When a visitor visits the site canyouseeme.org and type in a port number, let's say 80 for example, (IP is already detected by canyouseeme), would that be equivalent to do the following telnet: ...
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test port by telnet command on localhost (OS=windows)?

I have windows Xp , I want to test some port , someone advice me to use telnet command on localhost to test it . but i don't know how i can do it (syntax of telnet command on local host) ?
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Cannot connect to telnet server

So, I can't use telnet to connect to any server but it works fine from a different computer. It just says it can't connect. I tried the following things: Disable firewall and AV protection. ...
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1answer
435 views

Telnet inconsistency

I am having issues running telnet in windows xp. When I do: Start > run > telnet > set localecho > set crlf > o bing.com 80 I get "Connecting to bing.com..." and it never goes further. I can ...
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1answer
1k views

No Telnet login prompt when used over SSH tunnel

I have a device, let's call it d1, runnning a lightweight Linux. This device is NATed by my internet box/router, hence not reachable from the Internet. That device runs a telnet daemon on it, and only ...
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1answer
739 views

How can I use telnet from Emacs in Windows?

There does not seem to be a built in Telnet client for Emacs. I am using Windows 7. I would either like to run: M-x TELNET : or I would like to run "telnet" from shell or eshell
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333 views

O2 wireless box 2 change channel telnet

Anyone know how I can change the broadcast channel via telnet? The router is O2 wireless box 2.
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1answer
640 views

How to create tunnel to utilize for telnet connection

The scenario is as follows: Machine A is located behind client firewall. The machine runs telnetd. This is Linux machine with Python 2.5.4 installed. I do not know the IP addy of the router and ...
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2answers
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Windows preventing running of Telnet client

At first, I had issues because Windows 7 doesn't install the Telnet client by default (also, SuperUser has a thread). So, after installing it (and restarting, like Windows asked, though completely ...
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2answers
698 views

Connection Issues with SQL Server Express

I have windows 7 Ultimate, 64bit. I have installed SQL Server 2008 Express and have created a database in it. I have a jar that helps me create a connection file to connect to this database. I have ...
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2answers
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Tor Telnet control gives Authentication Required error on any command

I am trying to connect to a running instance of Tor with the Tor Control (TC) Protocol using Telnet on the ControlPort (specified in the torrc file) on Windows. Whenever I connect using Windows's own ...
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3answers
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Why can't I telnet to a Windows machine?

Why am I not able to telnet to a Windows server machine? Is it because the telnet server is not running there? A remote desktop connection works though. Does a telnet server run by default on a Unix ...
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915 views

Telnet into XP machine

Is it possible for XP to be setup to allow a Linux computer to telnet into it?
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5answers
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How do I copy data from a Ubuntu server using terminal by telnet?

I have one folder to copy that consists of PHP and similar files for creating a web site. How do I copy one folder from the server (Linux Ubuntu) to the client PC (Linux Ubuntu) using terminal? Could ...
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2answers
9k views

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 ...
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1answer
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Telnet GET Request vs HEAD Request: why HEAD failed?

I thought head syntax was just like GET syntax but when I tried with telnet o mirror.bytemark.co.uk 80 GET /ubuntu-releases/lucid/ubuntu-10.04-desktop-i386.iso it works as expect whereas o ...
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1answer
607 views

Can ping server but no telnet or www

I have a NAS (Iomega home media 1TB) connected to a router with a 1Gb ethernet cable. Occasionally I lose access to it; when this happens I can still ping it by it's static IP or scan it with Nmap but ...
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2answers
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telnet - is there a maximum line limit?

I am working on several servers that use HTTP for transport of commands. What I have encountered is that some of the commands I am trying to issue by hand are very long GETs, several lines, and that ...
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1answer
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“Could not open connection to the host” error when trying to send email using telnet

I need to send email from my ASP.NET application. For that I am using the following command from the command prompt to connect to the specific port on tk2smtp: telnet tk2smtp.msn.com 22 But it's ...
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5k views

Use telnet with wireless Internet connection

Is it possible to use telnet to connect to remote computers/hosts using only a WiFi connection and no direct connection to the modem except through the router?
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How to use “edit” command via telnet

I use telnet to connect my client, and try to edit a file. But I find that I can't edit it. I can't even use "Alt" key to control the application. How can I solve this problem? (I can't install any ...
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6answers
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Is it possible to shutdown a remote computer running Windows 7 via Telnet?

I've successfully connected to my Windows 7 desktop over wifi via Telnet from an XP Home netbook. To login, I use the following command: telnet -l "win7desktop\win7user" win7desktop win7user in ...
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2answers
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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?
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Localhost & local IP 80 port not working - connection failed in client PC

While giving telnet command for localhost & local IP 80 port not working and connection failed in client PC. In the same pc I am able to connect outside server ( where our system's application ...
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6answers
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Lightweight tool for viewing raw HTTP messages?

I'm investigating differences in behaviour between a couple of Web servers. I need to see raw response data from the servers (i.e. before the response is de-chunked if it has ...
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2answers
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Why isn't Telnet enabled by default in Windows 7?

When I pinged my mailserver from the command prompt using: telnet mail.mydomain.com 25 I got the error Telnet is not a recognized command. I looked for a workaround and then found that Telnet was ...
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3answers
120 views

How to configure a command to run on login, but only if through telnet

I want to run a command every time I log in to my Ubuntu box, but only if I'm connecting through telnet, not if I'm logging in at the console.