Questions tagged [telnet]

For questions about Telnet, a protocol for bidirectional interactive text-oriented communication with remote hosts via virtual terminals. It is defined in RFC 854.

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"No route to host" with ssl but not with telnet

I have a strange problem with connecting to a https site from one of my servers. When I type: telnet puppet 8140 I am presented with a standard telnet console and can talk to the Server as always: ...
Clemens Bergmann's user avatar
5 votes
2 answers
892 views

What are the reasons for using telnet command?

I SSH into root and noticed the previous user used this command: telnet randomdomain.com 25 From what I gathered it is connecting to another server? But that domain doesn't have anything to do with ...
user1699176's user avatar
0 votes
1 answer
742 views

Netstat shows Time_Wait in MySQL Master to master replication

During my master to master replication, I got a problem on telnet. After fixing it also my replication on both side doesn't work. Master 2 replicates all the database of Master 1 but Master 1 is ...
Udhy's user avatar
  • 103
2 votes
1 answer
29k views

Telnet return unrecognized command

Maybe someone could explain how to use Telnet to test Virtual SMTP Server on another machine with Windows 2008? I have tried command below and get unrecognized command error. (The actual server ...
Tomas's user avatar
  • 447
-1 votes
3 answers
2k views

How does one make a temporary telnet responder with PowerShell? [closed]

I'm looking into making a temporary Telnet server so I can remotely test network connectivity and data transmission integrity. I don't have the authority to install the telnet server Windows Feature.
Piccolo's user avatar
  • 117
0 votes
1 answer
2k views

How to enable telnet with port 3306 during Master to master replication on MySQL Server

I am trying to do Master to Master Replication in Windows Server 2008. I am successfully able to replicate all the database of Master 1 to Master 2. But I am unable to replicate the changes made on ...
Udhy's user avatar
  • 103
0 votes
2 answers
4k views

I cannot telnet www.google.com 80 on my centos, why?

On my centos I have a problem. I cannot: [root@server]# telnet www.google.com 80 telnet: www.google.com: Name or service not known www.google.com: Unknown server error [root@server]# However I can ...
Phil's user avatar
  • 265
0 votes
1 answer
535 views

Monitoring memcached with plink

I need a telnet client that can take commands from a file or stdin so I can do some quick-and-dirty automatic monitoring of memcached. I thought plink would be good for this, but it seems to be doing ...
kojiro's user avatar
  • 559
20 votes
3 answers
8k views

How to kill a telnet client with rlwrap since ^] does not work?

When I use telnet with rlwrap it looks like there is no way to kill the client. Am I missing something here or I really have to kill the process with the kill command?
chrisapotek's user avatar
6 votes
2 answers
2k views

Confusion over terminology SSH, Shell, Terminal, Command Prompt and Telnet

I don't usually use SSH if I can get away with it, but if I have to I do of course, and I've seemingly done this for years while still managing to remain slightly confused about these different terms ....
byronyasgur's user avatar
1 vote
1 answer
990 views

Thunderbird 15.0.1 cannot use Exchange 2003 SMTP

I'm having the strangest time getting a Thunderbird email client to connect to my Exchange 2003 server. I got the incoming IMAP account set up no problem, and I can receive mail. However sending mail ...
speedreeder's user avatar
0 votes
2 answers
9k views

postfix: Temporary lookup failure for FQDN

I'm using the FQDN of dur.bounceme.net which I want to resolve(?) to localhost. That is, I want mail to [email protected] to get delivered to user@localhost. I've tried following the Ubuntu ...
Thufir's user avatar
  • 229
-1 votes
1 answer
2k views

How To Change Telnet username and password using SNMP

We have a Siemens h1000 dslam. We forgot the username and password but i think we can do all activity with snmp My question is How we can reset telnet username and password using SNMP? Edited-> I ...
Ali's user avatar
  • 111
0 votes
1 answer
1k views

Forward local port to remote host telnet port

I'm trying to forward a local port to a remote telnet host. Something like this. MyHost -----> |2222 Proxy |------> |23 Destination | MyHost: I'm on a Windows PC. Proxy: Is a linux box which I ...
cookM's user avatar
  • 183
-2 votes
1 answer
200 views

Telnet scripting server [closed]

I know this is old question, but I cant find anything on google. Is there any good software for centrally scripting telnet and ssh? Basically the following components: Telnet/SSH client, GUI, Server &...
Andrew Smith's user avatar
  • 1,143
1 vote
1 answer
9k views

Telnet does not give a response

Some wireless access points are acting a little weird, so I want to reboot them every couple of hours. Luckily there exists a security flaw which lets me login as root through telnet when using port ...
floorish's user avatar
  • 253
1 vote
2 answers
2k views

Connections to host are sporadically successful with mysql_connect() and telnet, but I can always ping the host successfully?

When I try to connect to a host on my LAN with mysql_connect();, the connections succeed some of the time and fail at other times. I can always ping the MySQL server successfully, but when I try to ...
woo's not wei's user avatar
2 votes
1 answer
749 views

Bind telnetd to specific IP on AIX 5.3?

Is it possible to bind telnetd to a specific IP on AIX 5.3? I know telnet is evil. Unfortunately, we have to have it listening on one interface for a specific application, but I want to make sure ...
Sama's user avatar
  • 101
5 votes
2 answers
10k views

Can't connect to SMTP server

I have trouble connecting to an SMTP server from my PC. I use Debian sid. telnet mail.example.com 25 Trying 12.23.34.45... telnet: Unable to connect to remote host: Connection timed out While from ...
Root Null's user avatar
1 vote
2 answers
11k views

"Not all privileges or groups referenced are assigned to the caller." when connecting to Windows 7 Telnet

I'm trying to configure telnet server in windows 7. When I try make a telnet connection from another machine within the LAN, and I log in with the username and password of a administrator account, I ...
tommi's user avatar
  • 111
1 vote
1 answer
1k views

telnet server not executing commands

I am connected in a telnet session in linux environment, but when I type commands and press enter, nothing happens. The TCP connection is in established state and when I checked the packets, the ...
Jake's user avatar
  • 145
-1 votes
1 answer
243 views

Dovecot problems downloading mails

When I run telnet localhost imap2 both from localhost, using IP from external, mutt -f imaps://lasse@"mydomain"@localhost and using webmail, I can view my messages. But If I run mutt -f imaps://lasse@...
The87Boy's user avatar
  • 155
-2 votes
2 answers
29k views

what is the default username / password of telnet?

I have installed Telnet server on my CentOs Server. and set disable = noa in xinted.d folder and reset xinted. so telnet is started. When I telnet to server,it will get login and password but I can'...
Moein Hosseini's user avatar
6 votes
4 answers
44k views

how to check connectivity to server by windows tools?

I need to check if client can connect to server on specific TCP port. Server is listening on it. Tried "telnet server_IP port" but telnet is stuck when I see that it's connected to the server. Seems ...
Andriy Tylychko's user avatar
2 votes
2 answers
10k views

How to telnet a computer name?

I have a computer in the network with computer name: XP-201112453 Without knowing the IP, how can I telnet to access this computer? I tried: telnet XP-201112453 but terminal gives me "nodename nor ...
KMC's user avatar
  • 143
1 vote
3 answers
2k views

Automate hop by hop telnet to Cisco router

I need to automate telnet to a Cisco router and get a "show version" result. The problem is, I need to first to telnet to A, from there telnet to B and then only be able to telnet to the Cisco router. ...
zaidwaqi's user avatar
  • 153
11 votes
3 answers
8k views

How to quit QEMU monitor?

I launched KVM VM with this command: kvm /kvm/hdd/v1/v1-1.raw -m 512 -daemonize -smp 2 -nographic -net nic,model=virtio,macaddr=aa:aa:aa:aa:aa:01 -net tap,ifname=tap0 -monitor telnet:localhost:7001,...
artem's user avatar
  • 596
-3 votes
3 answers
1k views

Can't connect to port 25 from all computers [closed]

I installed hMailServer on Windows Server 2003 and somehow I can't connect to SMTP 25 port from all computers. When I run the following command, it connects successfully on some clients, but on others ...
ihorko's user avatar
  • 155
1 vote
0 answers
174 views

IIS7.5 non-http port routing

I am trying to use IIS7.5 as a way to route to vnc on different servers or virtual servers. I cant get http to work but not non-http protocols like VNC, telnet, etc. Is there a way to do that? ...
Mike Reeves's user avatar
12 votes
6 answers
49k views

Windows Server 2008 without telnet client - how to test connecting to remote ports without installing anything new?

I'm looking to see if anyone knows of slick tricks to test connections to remote server ports from Windows server 2008 and variants that don't include the telnet client installed by default. Reason ...
S. Cobbs's user avatar
  • 267
3 votes
2 answers
34k views

Unable to connect to remote host: Connection timed out when trying to telnet to MySQL?

When trying to connect to mysql server via telnet I am getting following error: telnet localhost 3306 Trying ::1... Trying 127.0.0.1... telnet: Unable to connect to remote host: Connection timed out ...
Bakhtiyor's user avatar
  • 171
5 votes
2 answers
35k views

Why am I unable to telnet to a local port that has a listening service?

I suspect this is either a very simple question, or a very complex one. I have a headless server running ubuntu 10.04 that I can ssh into. I have full root access to the system. I am trying to set up ...
Skip Huffman's user avatar
30 votes
7 answers
38k views

something like telnet, but "listen on", not "connect to"

With the telnet program one can connect to any TCP port on any host, but is there a way to listen on some port on current host? i.e. 1) on host a: telnet listen 12345 2) on host b: telnet host_a ...
user1020218's user avatar
1 vote
1 answer
219 views

Linux restrict a telnet and rs323 user to only run a few programs

I have an embeded linux video server that I just finished. One of the features is that I have a telnet server as well as getty bound to an rs232 port which a user can log into to call a few programs ...
Jonathan Henson's user avatar
0 votes
1 answer
479 views

Netcat to automate SpeedTouch administration

I figured out how to enable/disable my wireless connection with telnet, but I want to automate it. I read telnet is not suitable for this, and one should use netcat instead. This is what I have: nc ...
Pepijn's user avatar
  • 133
1 vote
1 answer
1k views

Why can't I exit an SMTP dialog by entering a dot? [closed]

I've just started to set up an SMTP server on one of my test boxes. Postfix is installed and running, however, when I try to end a message it just does not work. All the documentation I've seen says ...
Hinchy's user avatar
  • 143
0 votes
5 answers
3k views

How can i enable telnet on ubuntu 10.4

I am trying to telnet from host 10.0.1.91 (centos) to host 10.0.11.162 (ubuntu). When I try to connect to the Ubuntu host, I get: telnet 10.0.11.162 4949 Trying 10.0.11.162... Connected to a.b.c (10....
kamal's user avatar
  • 519
5 votes
3 answers
4k views

How do I restore (xterm|gnome-terminal) wrapping after telnet to HP equipment has messed it up?

I telnet to an HP switch from my (xterm|gnome-terminal). Exit telnet. That breaks the behaviour of the terminal. (If you don't have a HP switch to telnet to, one can cat this file in a terminal ...
Peter V. Mørch's user avatar
5 votes
6 answers
10k views

How to customize telnet login prompt on linux

When I run login command on debian, I get: hostname login: _ on RHEL5, Solaris or HP-UX I get: login: _ I need to be able to customize login: and password: prompts it on a Linux box. I can ...
Michał Šrajer's user avatar
1 vote
1 answer
4k views

Telnet exit status are equal for connection refused and connection tiemout

I create a bash script that check the connection to an host with telnet. That's the core code: telnet $X 2404 < $TEST &>/dev/null if [ $? -ne 0 ] ; then echo -n "$X " >> $LOG_FILE ...
John's user avatar
  • 23
0 votes
1 answer
2k views

Change port from ipv6 address to ipv4 address

I have setup a service on my server which has opened a port (ie, 40000) but its foreign address is :::* which is a wildcard ipv6 address (I think) When I run telnet localhost 40000 on the server the ...
user avatar
1 vote
1 answer
51 views

How can I determine which users are authenticating via ftp or telnet?

I've inherited a system that has both telnet and ftp enabled. As both these send passwords in cleartext I want to disable them. But many users have never changed their ways to use sftp or ssh. And ...
Gray Race's user avatar
  • 903
3 votes
2 answers
237 views

Why does telnet send a RSET when I control-c while connecting?

Solaris 10 using snoop to capture packets. When I telnet to an unused IP address, and wait for the connection attempt to time out, everything behaves as expected (SYNs sent several times until ...
benc's user avatar
  • 683
1 vote
2 answers
2k views

Cannot connect from Linux to SQL Server through a firewall

I need to connect from a Debian GNU/Linux webserver to an SQL Server database which is hosted on a Windows machine within an organization's local network. The person in charge of the database server ...
Alex Marandon's user avatar
307 votes
8 answers
1.4m views

Check if port is open or closed on a Linux server?

How can I check if a port is listening on a Linux server?
James Anderson's user avatar
2 votes
3 answers
36k views

how fix telnet at port 25 or 110 or 143 connection failed?

I installed third party application on my Windows 2008 server to turn it into a mail server (MDaemon)... I filled the info during its wizard very carefully without any changes in its options or ...
SilverLight's user avatar
1 vote
3 answers
18k views

Is Telnet Port Open For The Range IP?

I want to port scanning on telnet port in a range ip . for ex: i want to know is the 23 port open on 127.0.0.1/255 ? what am i going to do ? is there a option for Nmap to do this ? Thanks .
user avatar
0 votes
2 answers
162 views

multiple apache connections using telnet

I want to have multiple simultaneous HTTP connections to my webserver which has a website hosted to perform load testing. Can anyone tell me how can we use a 'telnet' command in a script to do the ...
Rubi Naaz's user avatar
16 votes
2 answers
89k views

invoking telnet from two different interfaces

I use telnet to test email server connectivity between servers. My server has two interfaces, I'd like to telnet over each. Basically I'd like to choose source (one of my local ip addresses) AND ...
RussellBallestrini's user avatar
0 votes
1 answer
444 views

munin-node in openvz-container not reachable from host-system

I have a problem figuring out why my openvz-container is not reachable from the outside (host-system) on port 4949. netstat in the container: [root@openvz ~]# netstat -utapn |grep 4949 tcp 0 ...
m_sc's user avatar
  • 101

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