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

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redirect stdin/stdout of a program to another telnet connection stdin/stdout

I have read the following good article [http://bradconte.com/redirect-input-output-for-existing-process-on-linux][1] Which explains how to redirect program stdin/stdout using pipe. I would like to ask ...
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37 views

How to change the default port number for Telnet in CentOS 7?

I need to enable Telnet in a port number other than 23. I installed use telnet through following procedure. systemctl enable telnet.socket systemctl start telnet.socket I tried some procedure to ...
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29 views

How to save console output still showing it

I need to troubleshoot a telnet session and send save it's results to another person. When I use redirection I save the contents of my session, but I'm not able to see it on console. How to pipe ...
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21 views

How do i get the busybox console for Netgear JNR1010 router?

I have a Netgear JNR1010 router, and need to write some script for rebooting, etc.. how do i get the busybox console for Netgear JNR1010 router?
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45 views

Can telnet be used with any application level text protocol based on TCP/IP?

Can telnet be used with any application level text protocol like http or smtp?
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41 views

I want to automate rebooting most or all of the major routers remotely, will provide software to everyone for free [closed]

Does anyone know if we can use a tool or a method to remotely restart the router? Or even remotely restart the internet connection of the router? I know we can telnet into the router, but each router ...
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100 views

Telnet cannot connect to localhost on port 23

I am using bat file assigned with vbs script to change router configuration every 15 minutes through the day through telnet commands. It works as supposed for a while then it shows this message "Could ...
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2answers
64 views

Using telnet on windows 7.. can't connect on a specific port

Sorry if my question is stupid, but I'm trying to connect to myself using telnet, and i'm having some issues. I'm using a windows rat(Not an illegal one), it's an exe file that listens on port 24328 ...
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84 views

Netgear wnr2000v3 Router accepts Telnet connection but sends no data

A port scan of my Netgear wnr2000v3 Home Router reveals that TCP port 23 is open and running telnet as a service. When i try to connect to the router using Telnet (Windows built in client) the cursor ...
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49 views

Configuring PuTTY for Windows 8 cmd shell prompt

Is there some recommended configuration / settings of PuTTY for Telnet connecting on Windows 8 shell/Telnet. I ask this because in default conf of PuTTY cursor behavior is little strange. e.g. with ...
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106 views

Ping/nslookup working but telnet/browser fails

Having a problem on several systems. Ping, nslookup and tracert all work as expected but the browser and other applications including telnet are unable to get any internet access. The problem is not ...
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1answer
72 views

How to login via telnet to a LAN PC?

I am trying to login to my friends PC. We both are using ubuntu 14.04 LTS. I told her to install telnet by typing the commands sudo apt-get install telnetd and sudo /etc/init.d/openbsd-inetd restart . ...
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427 views

Regarding 530 5.7.1 Client was not authenticated Error

I am developing an application which will send email to an address which is in our own domain. For testing purpose I tried to send an email via CMD. I can telnet to the mail server on port 25 ...
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2answers
6k views

Telnet: Could not open connection to the host on port 23 : connect failed

I've Googled it a lot and checked it on many forums, but still haven't been able to solve it. When I do a telnet from a Windows system 192.18.212.169 to an RHEL system on 192.18.212.124 I get the ...
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39 views

Cannot connect to tomcat on 8084

Tomcat seems to be running, but the browser cannot connect to it. Here is the netstat output. UC180375@UC180375-TPD-A /cygdrive/c/Programs/PortQryV2 $ tasklist | grep java.exe java.exe ...
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1answer
200 views

Telnet - Connection refused when using hostname, connects fine with IP

I'm trying to connect to a telnet server from a windows 7 machine. The telnet server has an IP 123.4.5.6 and a hostname of myserver Running telnet 123.4.5.6 8080 works fine However when I try to use ...
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218 views

Using Telnet: Port number

With using telnet I used port 25. Example: telnet x.x.x.x 25 I had another server today that used port 23 instead. For the future, how would one easily know which port to use? Does this port ever ...
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25 views

How can I get telnet to auto login to this piece of equipment?

where I work we login to a piece of equipment that has an unusual login prompt that I am not able to get Putty to recognize. Well more specifically I am using KiTTY. The login prompt is a ASCII box ...
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2k views

Postfix Relay Access Denied When Sending To Gmail With Telnet

I have postfix and dovecot setup to deal with mail for my domain. imap appears to work ok when reading local mail but when i try to send an email using telnet with localhost and the smtp port it gives ...
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1answer
151 views

Giving a switch an IP Address so I can telnet into it

Right, so I've just reloaded my switch resetting the to complete default configuration. It's a Cisco Catalyst 3560. What I am trying to achieve is this: Giving the switch an IP Address, then telnet to ...
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78 views

Router (WNR3500Lv2) Telnet forwarding does not work for Lazy bone relay(Wifi bee/ WiFly)

I have been trying to set up port forwarding for a lazybone wifi device: http://www.tinyosshop.com/index.php?route=information/news&news_id=8 Connecting to it from Lan works, but trying to access ...
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85 views

Very strange behavior when I try to connect using SSH. Why it works only if I copy and paste the IP address?

I am experiencing a very strange behavior. The situation is the following one: I connect to my RaspBerry Pi from my Ubuntu Linux 12.04 using SSH So I do the following operation: I go into my router ...
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95 views

How to run batch script on server which exists in different domain of your PC?

I am trying to execute a batch file residing on some server which lie in different domain w.r.t my pc. I tried: PSExec -> but its persistently giving error: Couldn't access 192.168.238.74: The ...
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81 views

Redhat linux terminal garbage output when using telnet

I am using redhat-linux terminal to connect to a router device by means of 'telnet'. While the device boots, the characters are getting printed in garbage manner which is as follows, In terminal, ...
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193 views

Telnet into a linux machine using an RJ45-RS232 cable

my linux machine doesn't have a RS232 port, only an RJ45. I also have my grandpa's old pentium machine running windows 95 that has an RS232 port. The only means of interfacing these two computers are ...
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90 views

How to download a file through Telnet using HTTP request? [closed]

I need to download a file, for example: http://gensho.acc.umu.se/debian-cd/7.5.0/amd64/iso-dvd/debian-7.5.0-amd64-DVD-1.iso with usage of Telnet and HTTP request. How can I do that?
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336 views

Trying to reboot ADSL modem via expect script

I'm trying to create a Linux script which can reboot my ASDL Modem. Here is my rebootModem.exp file : #!/usr/bin/expect set userName admin set pass admin set command reboot #It is modem reboot ...
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163 views

Tshark is displaying “florence” and “eforward” rather than source/destination port numbers

I am running rawcap on windows7 loopback adapter. I have run telnet localhost 2181 15 Packets were generated. In order to view the output I ran wireshark\tshark -r \shared\pcap.pcap And here ...
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710 views

Sending email using Telnet

I saw many thread about sending email using Telnet, but I couldn't do that. I'm trying to connect to yahoo smtp server by : telnet smtp.mail.yahoo.com 25 The response from server is : Trying ...
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328 views

How to create a small Telnet star wars like movie [closed]

As it appears from the question title, how I can create my own server of telnet that can render some animated ascii art (like the star wars one) to say happy birthday? I just want some resources on ...
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397 views

Telnet router commands

I have an actiontec xdsl router (c1000a) that I am telnetting to but I can't get a list of commands for it. The only one I've found so far is arp. I haven't found a list of common router commands on ...
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712 views

Unable to connect to server using Putty

I am using windows 8 for connecting to the Linux server, it would connect fine few days back but now I can not connect to it using only my computer. I can connect to that server with any other ...
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LOCAL SERVER and telnet

Finally, after many attempts and days, I managed to connect 2 computers using the telnet client and the telnet server. The reason of so many attempts is because there are no complete guides for these ...
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22 views

Is it possible to spawn any kind of terminal on dedicated lan card before entering LVM volume passphrase?

I got IBM x3500 m2 server running Ubuntu server on encrypted LVM volume. This machine has one slower LAN card for service purposes. Is there any way to spawn some kind of console on it BEFORE ...
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1k views

Telnet won't work on Windows 8.1

I'm using Windows 8.1 64bit. I know how enable Telnet-Client on Windows 8.1. But when I type in : telnet microsoft.com 80 nothing happens! Any ideas would be appreciated.
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199 views

Email spoofing in Linux (received message with no subject and content)

I'm trying to send email using telnet in terminal of my linux. I have connection with telnet now I have typed the commands below successfully. Unfortunately, I only receive the message with no ...
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1answer
5k views

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. Know that they must have logged in via telnet. And I found this ...
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1answer
2k views

Telnet 555 5.5.2 Syntax error. b42si7464989qgd.93 - gsmtp

I'm trying to do email spoofing in cmd in telnet but failed to do so. I entered C:\Documents and Settings\Owner>telnet alt3.gmail-smtp-in.l.google.com 25 Then it brought me here 220 ...
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500 views

550 User Unknown cmd telnet error (Email spoofing)

I'm trying to send email using telnet in cmd. I have connection with telnet now. Btw I'm using a disposable email provider. C:\Users\Student>telnet mail.dispostable.com 25 then it brought me ...
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431 views

telnet 500 Syntax error, command unrecognized

I'm trying to send email using telnet in cmd. I have connection with telnet now C:\Users\Student>telnet alt3.gmail-smtp-in.l.google.com 25 then it brought me here: 220 mx.google.com ESMTP ...
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1k views

Why can't I connect to Google's SMTP server on port 25?

I'm working on an InfoSec exercise, specifically email spoofing. I started by executing the following commands: C:\Users\student>nslookup 6.0.0.10.in-addr.arpa primary name server = ...
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3k views

'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 ...
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1k views

Oracle telnet localhost 1521 connect failed

Our service provider installed Oracle 11G on our Windows 2008 R2 server on vmware. But we can not connect from another client on port 1521. And we can not also telnet localhost 1521 port on server. ...
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271 views

Why would my ADSL router have a telnet port open to the exterior?

I just ran GRC's "Shields Up" on my connection, which has an Asus Wl600g ADSL modem/router serving as gatekeeper. All ports are reported as stealth, except port 23 (Telnet). Now, I can understand ...
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174 views

Zyxel: How to setup WLAN via telnet (console)

I have a new Zyxel sbg3300 vDSL Modem and now I want to setup my WLAN. At the step where I have to fill in a password/key, a error-message shows me that it is not allowed to use additional characters ...
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51 views

Telnet ip address at a given port

What's the difference between: C:>telnet somehost 25 and C:>telnet Microsoft Telnet>open somehost 25 Why in the first case I immediately get a new completely black prompt, while the ...
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126 views

How do I block incoming IP addresses on a Verizon FiOS Actiontec Router?

Recently, on my office's telnet port, various IPs from China or India or the like attempt to connect to the telnet port, but can't access it since they don't have the password, and the connections ...
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with rlwrap vi file edit not happening

Am using rlwrap,with that history fetch commands editing works fine. But in vi mode am not able to edit the file, and not able to exit from vi mode. I added following entries in inputrc, set ...
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81 views

What VBScripts can be executed via remote text console (SSH or Telnet)?

I am testing via remote login (SSH) a simple VB script (thanks, Igor) from this thread ( Is it possible to download using the Windows command line? ) that just downloads a file to hard disk: cscript ...
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307 views

Telnet : Connection refused

I have Windows 8 as my OS and have Debian installed on VMware player. I would like access my debian install using telnet. (I do know telnet is insecure. It's just for learning purposes) When I ...