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

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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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718 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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757 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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2k 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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2answers
6k 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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2k 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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1answer
328 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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66 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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98 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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1answer
482 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 ...
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498 views

What can block telnet <servername> 110 and 143 on Windows 7?

I am trying to troubleshoot a connection problem with Thunderbird on a freshly installed Windows 7 computer. For this I have installed telnet and tried to connect to the server through it. First, I ...
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634 views

PuTTY settings to replicate Windows XP telnet program

I am working with a high voltage power supply that can be remote controlled via telnet over TCP/IP. This worked very well for a few years using the built-in telnet client of Windows XP. As Windows XP ...
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55 views

telnet in windows 7, command overlapping

I enable and use telnet on windows 7 for checking my server program I have created which read and write to client, I run it on localhost, but the problem is on windows's telnet, it's keep overlaping, ...
2
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1answer
302 views

Telnet stuck on “connecting”

I am trying to telnet a port at a client's location. It shows connecting.... for a long time but doesn't outputs any error message. The port is opened and other vendors are able to telnet the same ...
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2answers
985 views

Are there any SSH / Telnet clients for Windows that support tabs? [closed]

I currently use putty for SSH and Telnet on Windows. But the lack of tab support in Putty makes it difficult for me to keep multiple windows open at once (up 10 at a time). Does anyone know anything ...
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1answer
75 views

Create an email account via Telnet

I know how to telnet into a smtp server in order to send emails and I know how to telnet into a pop server in order to read emails. Is there some protocol I can telnet into to create user ...
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2answers
84 views

Telnet in Windows didn't connect

I want to connect to my friend's computer using telnet, but when I type: telnet [his IP], it didn't work. It also happens when he types my IP. The command line said that he can't connect on port 23. ...
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1answer
429 views

Network Error: No connection could be made because the target machine actively refused it

I'm trying to bootstrap a server via Chef (using winrm), but continue to get the message: Network Error: No connection could be made because the target machine actively refused it I've opened the ...
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1answer
445 views

Turning Telnet on on Mac OS X Leopard

Does Mac OS X Leopard have Telnet client technology? I've seen plenty of stuff around on the internet pertaining to Snow Leopard, but not plain old Leopard. I know some people like to use SSH, but I'm ...
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1answer
37 views

could I cat a file to telnet to email to specific address?

Right, now, I am configuring Asterisk to send an email when one gets a voicemail. Due to the firewalls at my school, and securities on our email client, I can't use the ssmtp program directly, but ...
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1k views

Change DNS On Pace V2500 Router

I'm trying to change the DNS settings on my Pace V2500 router. There are no settings options within the admin interface so I will have to use telnet to make the changes. I cannot change the DNS per ...
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Feeding contents of a text file as command to telnet

With the command telnet docs.python.org 80 I can do a manual request to http://docs.python.org/2/license.html, by typing the actual request. Now instead of typing it in live I'd like to feed the ...
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1answer
949 views

telnet on Windows 8: even after installing still an unknown command

I installed telnet by going to -> Control Panel -> Turn Windows Features on/off -> checked "Telnet Client" Reopened a cmd window. Still the same result: 'telnet' is not recognized as an ...
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1answer
68 views

PuTTY - Stack variables not updating on null line

This is going to be a bit of an odd issue to explain. I'm fairly new to terminal communication as well, being that it is way before my time, so if I mess up any terminology I apologize in advance. ...
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331 views

telnet localhost 25 not working on company domain network with win7

when I try to access my own PC (already tried 127.0.0.1, 'PCNAME' etc.) with command prompt via SMTP it always displays the No Connection message. How do I configure my PC correctly so this is ...
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1answer
85 views

Not able to get prompt while connectiong through Telnet command

I am trying to connect one terminal using Telnet command. It is showing connecting to ... and after that it showing 'SSH-2.0-OpenSSH_6.0'. Prompt is not showing. I am able to connect through putty to ...
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128 views

My computer cannot connect to a Telnet host

I need to connect to Telnet server for my university studies at the University of Birmingham but everytime I try to connect I get : "could not connect to the host on port 23". What can I do ? Thanks ...
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1answer
542 views

Connection getting dropped immediately on telnet

Am getting a connection closed by foreign host error on port 465 but working fine for another port 993. What could be the issue. % telnet x.x.x.x 465 Trying x.x.x.x... Connected to x.x.x.x Escape ...
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118 views

Verifying which SMTP server software is used by remote server

I am trying to catalog which smtp servers are used in an heterogenous pool of servers, and so far I was doing : echo "HELO localhost" | telnet localhost 25 2>/dev/null | grep 220 #process the ...
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1answer
106 views

How to use Telnet in Window 7?

I enable Telnet Client and Server in Windows 7 32 bits but I don't know how to use Gmail from Telnet and What should i need to install in my computer? I want to study How to use Gmail from Telnet ...
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1answer
394 views

cannot telnet on external IP

I am a newbie to networking, so need some help to understand if what I am doing is right: I have a VM which hosts a Ubuntu guest OS with an internal IP: 192.168.15.6 I have setup an ssh server on ...
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Can't connect to mysql by telnet 127.0.0.1

I can't telnet MySQL on my localhost. MySQL is up and running and works fine with Apache-SSL/PHP/MySQL server but I can't connect by telnet: telnet 127.0.0.1 3306 Trying 127.0.0.1... telnet: Unable ...
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2answers
1k views

VMware can ssh to gues, but can't telnet

I'm running VMware Workstation 9.0.2 on Windows 7 Professional with a CentOS 6.4 guest using the bridged networking. The LAN that the host is running on is 192.168.123.*, the host is static IP ...
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1answer
689 views

Can't capture any telnet packets

I'm running a Telnet server and client on my Windows 7 computer. Meanwhile, I'm running Wireshark to try to sniff the telnet login. I have been unable to get Telnet to send any packets that can be ...
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164 views

Postfix will not send/receive mail

I recently installed postfix, among other programs, and have been configuring it. POP3 and IMAP are working just fine, but postfix seems to fail: # telnet localhost 25 Trying ::1... Trying ...
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447 views

Telnet Server Service Doesn't Work

I want to be a Telnet Server, but i couldn't troubleshooting that why other computer on my LAN couldn't connect to me. I went these same steps on other computers but there were no problems to connect ...
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5k views

How to copy files using telnet from the remote pc to my pc

For our school project, a friend and I have been assigned the task of finding a way to to transfer files from computer to computer via telnet. Does anyone know of a simple set of commands, or a GUI ...
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ping works but not telnet in putty

I am trying to ping one remote server. I am surprised that ping works but not telnet. ping 174.25.366.25 --connection is successful. where as telnet 174.25.366.25 --connection timed out I also ...
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Telnet won't run from cmd prompt in windows 7

Edit:I am running windows 7, 64 bits. I have Telnet Client installed, and if I go to c:\windows\system32 i do find the file "telnet.exe"; if I click it, telnet runs perfectly. However, if I type ...
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340 views

Windows port opening

I had a problem with opening port between my host (windows 7) and a virtual box (windows xp) system. On my host win7 system, I added a port from the inbound rule (port 777) under the firewall advance ...
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1answer
227 views

Who is listening on my 80 port [duplicate]

In My PC, I am running : telnet localhost 80 and it seems that there is an answer. No IIS runs, no java server runs. How do I know which process listens to 80 port?
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How can I telnet from Windows to my server by MAC address?

How can I telnet from Windows to my server by MAC address? C:\Users\Asep>telnet D4:CA:6D:46:C9:98 23 Connecting To D4:CA:6D:46:C9:98...Could not open connection to the host, on port 23: Connect ...
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1answer
761 views

Sending email through postfix using Python or Telnet

I managed to configure a local postfix server, which works correctly when using the mail command (and I receive emails from the cron deamon), however, if I try to connect using telnet localhost 25 ...
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3k views

Can't connect to Synology with Telnet or SSH

Despite enabling the service on my DS107e I have been unable to connect to it with Telnet or SSH. Telnet gives me the following: Connecting To 192.168.0.4...Could not open connection to the host, on ...
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trouble shooting the connection between systems by using telnet?

I have a windowsystem called "A" and Linux system called"B" .Our application software is client -server software. So in this scenario server part of application is resding in a window system and ...
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telnet fails to connect: Connection closed by foreign host

I try to connect to localhost with telnet: % telnet localhost 6311 This connection succeed, but when I connect by external IP of my computer, connection fails: % telnet x.x.x.x 6311 Trying ...
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879 views

Telnet disconnects too quickly for HTTP commands on port 80

My home router provides Web server here: 10.1.1.1:80 I can ping and connect to it fine with a web browser. For whatever reason, I want to establish a connection to its web server via telnet too. I ...
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377 views

Telnet escape sequence for Swedish keyboard layout

What is the default Telnet escape sequence in Windows XP/Vista/7 when using Swedish keyboard layout? Ctrl-] doesn't work.
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4answers
955 views

A decent remote shell from UNIX to Windows? [closed]

I'm on Linux and develop on a Windows 7 box virtualized via VirtualBox. My usual way of developing consists in editing source files from Linux via nautilus/SMB (smb://192.168.1.4/...) then when I'm ...
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2answers
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How does telnet get through the windows firewall?

I activated the Telnet client in Windows 7 and was instantly able to connect to servers although Windows Firewall is activated. How does that work? Shouldn't the firewall block outgoing connections ...