Telnet is a protocol for bidirectional interactive text-oriented communication with remote hosts via virtual terminals. It is defined in [RFC 854](http://tools.ietf.org/html/rfc854). Telnet provides no inherent security and so is becoming less commonly supported. On modern UNIX-like systems it ...

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2answers
59 views

telnet connection refused despite ufw having ports open [on hold]

How is this possible? I dont understand Server A ip=111.111.111.111 Server B ip=222.222.222.222 Server A: ufw status 23 ALLOW 222.222.222.222 9160 ...
0
votes
3answers
16 views

How to restart Alcatel-Lucent OmniSwitch 9600

I need to restart/reboot an Alcatel-Lucent OmniSwith 9600. I cannot find the option to reboot the switch from the web interface. How else can I reboot the switch without pulling the power? I was able ...
2
votes
4answers
2k views

Cyrus IMAP: Unable to connect to remote host: Connection refused

I'm working on setting up a Cyrus 2.2 IMAP server on Ubuntu Server 9.04. If I telnet from the server itself: # telnet localhost imap I get: * OK IMAP Cyrus IMAP4 v2.2.13-Debian-2.2.13-14ubuntu3 ...
1
vote
1answer
34 views

How can I disable sending mail through postfix smtp with out auth

I just setup a mail server with postfix 2.6.6 and dovecot. I have the auth related config in main.cf like below: smtpd_tls_cert_file=/etc/httpd/ssl/mail.crt ...
1
vote
1answer
59 views

Telnet Results in “Connection closed by foreign host”

I'm not a networking guy, so I apologize if my question is dumb. I have two Ubuntu machines setup on Amazon EC2. I need to "talk" from one to the other via port 9300. On my receiving machine, I ran ...
0
votes
0answers
14 views

Factory Reset Enerasys

Kind of a 2 problem issue, but I have a feeling one of them is my problem. I have 2 C2G124-24 switches. They work fine and function properly. Problem I am having is that I can no longer access them ...
-1
votes
2answers
66 views

How to start a program through putty, then disconnect but program keeps running on remote Ubuntu machine? [closed]

I will be running some batch process on Amazon EC2 Ubuntu 12 machines. I can log in using putty, run the command. The process will run for a day or two. There is a chance the putty will get ...
3
votes
3answers
238 views

Automation in Windows Instances on Amazon EC2

I am working on a compute service that will require automatic deployment of our software (~30 megs). The software is a WCF service, so I am stuck with windows. I can't use mono because we use lots of ...
0
votes
0answers
24 views

Munin Data gathering - Some nodes fail gathering data

Hy Everybody I've run into a strange Problem with munin for which i didnt find any solution... maybe somebody here will be able to help. Im running the munin-master on a debian 7. Here's the config ...
4
votes
4answers
210 views

Telnet connection to an AS400 system via telnetlib (Python)

I use telnetlib - Python - to create a telnet client - port 23 - to communicate with an AS/400 server. communication with the telnet command that is no problem, but with telnetlib I do not get any ...
3
votes
8answers
3k views

keyboard shortcut to quit 'telnet'

on Windows XP/server 2003 When telnet some remote host on a specified port, after connection established, sometimes press ctrl+] doesn't quit. Is there any command can quit instead of just close the ...
1
vote
2answers
497 views

Unable to telnet to a Windows 7 client on port 9102 while setting up Bacula

I'm trying to setup Bacula for all my work machines. Most of my machines are Linux (Ubuntu) based and I have successfully managed to setup Bacula on those machines. However, I do have several Windows ...
-3
votes
1answer
82 views

Knowing when a qemu vm shutdown (initiated via telnet using QMP) is finished

When I start a qemu (Windows Server 2003) virtual machine with -qmp tcp:127.0.0.1:4444,server,nowait I can make it shutdown with the following script #!/bin/bash telnet 127.0.0.1 4444 <<JSON ...
-3
votes
2answers
57 views

How to access a windows command line from a linux machine? [closed]

How to access the windows command line from an ubuntu machine. OS in question is Windows 7 and Ubuntu 12.04. Accessing here refers to remote access.
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votes
2answers
120 views

How to limit telnet access to only local network users in Cisco [closed]

I need to make so that my telnet service is only reachable by local users, not by anyone from outside in Cisco Packet tracer. Any suggestions please? http://i.imgur.com/RfoNjDz.png
2
votes
1answer
129 views

Can't establish connection on port 80 for yum

Hi guys I have a very strange issue happening on one of my boxes. If someone can advise what I can check please let me know. Thanks. Here's the layout. Box 1 & Box 2 <> Firewall <> ...
0
votes
2answers
40 views

How to connect more than one telnet session to Cisco router ( Port Com10 )?

I am working on connecting more than one telnet session to Cisco Router. I was unsuccessful till now and decided to post it for getting any valuable directions and info. Thanks
1
vote
1answer
79 views

Better telnet tool on Windows [closed]

When I need to check whether a firewall rule has been opened or whether a service is up and running, I usually run a telnet test, basically "telnet 192.168.1.50 80" for e.g. If a firewall is dropping ...
0
votes
0answers
44 views

Telnet Terminal F3 Key Transmit

I am creating a new install image for deployment, upgrading from a previous deployment of Fedora Core 4 to Linux Mint 15. I have the telnet session to the server working and all keys are operating as ...
1
vote
1answer
65 views

SSH/ Telnet PAM configuration

How do I configure maximum number of login attempts before the session is dropped for SSH/telnet in PAM?
1
vote
1answer
105 views

Having to restart xinetd service to connect via telnet

In my environment I have a linux server running CentOS 5. I have setup a telnet service on this server in order to connect via telnet. However, after some time I try to connect and I get this error: ...
7
votes
9answers
24k views

Send an email with an attached file using telnet or netcat

I often use telnet or netcat to connect smtp servers to send an email as a test. Does anyone know how you would send an email using telnet or netcat but attach a file as well? There are probably ...
0
votes
1answer
63 views

Redirect telnet “interactivity” from host 3 to host 1 through host 2 (proxy?)

My network configuration: host 1 [h1] - User machine connected via VPN to the main host (host 2). (Win 7) host 2 [h2] - The gate through other machines of my network. No firewall, no ip rules. (Win ...
0
votes
0answers
137 views

Can Telnet be used to test Direct Push is open “long enough”

I am getting the event below in the Eventlog regarding Direct Push for Activesync. If it matters we have a Cisco ASA and a Citrix Netscaler. Event 1040 MSExchange Activesync The average of ...
2
votes
1answer
55 views

Communicating with ARIN Whois server [closed]

Connecting to the ARIN Whois server via telnet works like so: telnet whois.arin.net 43 Once connected, getting information about an IP address is equally trivial: n 119.194.24.35 A lot of ...
2
votes
6answers
999 views

SSH into Ubuntu Linux on a box without a static IP address

Basically, how do I do it? I'd like to connect to my home computer from work, but my internet is routed through my apartment building's network, so I don't have the static IP address I'm accustomed ...
5
votes
3answers
551 views

Running a shell script for certain user who logs in with SSH

First time here and posting just because I can't seem to find the answer to this, or whether is this even possible. The problem I'm having is that I want to create a script that will be run ...
1
vote
0answers
47 views

Passwordless remote access to a restricted shell

For, um, historic reasons, we have a C program for HPUX which accepts telnet connections, and runs a home-grown REPL that restricts the commands available. Rather than port this code to Linux, I'd ...
1
vote
2answers
465 views

OS X Server: SMTP Server problem

I have problem to setup my mail server. My system is a OS X 10.6.2. Server. I configured the mail server so far, but I cannot connect to the smtp server correctly. Correctly means that I can connect ...
0
votes
1answer
102 views

Telnet to new SMTP server port 25 times out

I just got Postfix 2.9.6 up and running on a Debian 7 Wheezy server and I can send and receive mail to the outside world but I'm unable to login to the SMTP server. I've tried telnet, first by ...
0
votes
2answers
200 views

unable to connect through telnet in windows 7 [closed]

I'm trying to connect to my computer through telnet. I've turned telnet client and server on. I've opened port 23 on my computer firewall and on my router. But when i test it: C:\>telnet ...
0
votes
1answer
253 views

How to set telnet start after every reboot in suse 11sp3 x64

I have an issue on sles 11sp3x64 with telnet, if i reboot the machine telnet service not starting automatically. again i have to do service restart manually. is there any way to start automaticaly ...
1
vote
1answer
289 views

Can Telnet to port 21 but not 25, 110

I am running postfix and dovecot on my Centos Mail server. Now I can send mail from the server to the outside, BUT I cannot receive mail from the outside. TELNET: When I telnet to my ip address to ...
0
votes
1answer
171 views

Is it possible to secure the SAP Telnet Administration port (50008)?

Is it possible to secure the SAP Telnet Administration port, which is usually port 50008? I would like a SSH type connection, so that data cannot be intercepted/read and non-authorised connection ...
0
votes
1answer
84 views

Is server being compromised? I've seen a client telnet session at logon

I've seen open a new window with a client telnet sesion at login this morning at SBS 2011 server. The window displayed some random chars (non alphanumerics) a few seconds and gone. The server is fully ...
-1
votes
1answer
92 views

HP-UX - Telnet to terminal

I would like to use a run of the mill linux VM to connect to an existing HP-UX server through telnet. When I connect using the simple: telnet xxx.xxx.xxx.xxx I get my login prompt and everything ...
1
vote
2answers
1k views

What's the best way to telnet from a remote Windows PC without using RDP?

Three Networks: 10.1.1.0 - Mine 172.1.1.0 - My Branch Office 172.2.2.0 - My Branch Office's VOIP VLAN. My PC is on 10.1.1.0. I need to telnet into a Cisco router on 172.2.2.0. The 10.1.1.0 network ...
-4
votes
1answer
96 views

telnet aspmx.l.google.com and it try ipv6 first [closed]

well, I try to send email via google 'aspmx.l.google.com' server, port 25. I can send emial, technically. I just have to wait one minute to wait the sending process complete. Then I try to do telnet ...
-2
votes
1answer
136 views

telnet open can not connect on a specific Centos server

i am using below command in the server but it cant connect to given ip and port, I tried to telnet from another locations and it works fine. Only in my server it cant connect. telnet open ...
1
vote
1answer
2k views

Windows/Linux socat to share a serial device over IP

I have a scenario where I demonstrated to my group @ work how to share a very expensive USB patient simulator plugged into a Raspberry Pi (Debian) using socat. The group wants to be able to have an ...
0
votes
3answers
2k views

How to test a connection without telnet? [closed]

I'm trying to test whether machine A can connect to machine B on certain ports. The sysadmins of machine A have seen fit to remove the telnet command. What would be a convenient replacement? Machine A ...
1
vote
1answer
120 views

SSH on FreeBSD 8.1 sshd is not running

After reading many pages of documentation and articles on how to telnet or SSH into FreeBSD as root, none have given me a solution that actually works. I am looking for a how-to-remote-into this ...
1
vote
1answer
277 views

How do telnet-based programs report their terminal type to a socket server?

I've written a script called by tcpserver that heavily utilizes tput and similar commands. These commands need to know how to correctly write to the terminal and rely on the TERM variable to obtain ...
7
votes
6answers
2k views

Windows server and telnet, what can you do?

On a Windows Server 2008, can you even telnet into the server? (not remote desktop, but via the command line) If yes, is there much control really? How do people automate if you can't telnet? ...
0
votes
2answers
489 views

Connection refused when doing telnet to windows machine

I am doing telnet to windows host from Linux to list Check_mk_agent data. but its giving me following output. [root@myhost ~]# telnet winhost 6556 Trying xxx.xx.xx.x... telnet: connect to address ...
1
vote
4answers
913 views

new Catalyst 2950 switch, no console or telnet CLI access

I am connecting a brand-new Catalyst 2950 switch to my LAN. It is on with green lights, and frames successfully go in and out the ports. The switch is on the same LAN has my host PC, and pings are ...
-2
votes
1answer
254 views

Telnet Port 23 Not Responding' [closed]

I have an assignment that requires remote access into some Cisco routers. According to Netlab, it uses TCP port 23. I'm unable to pass the port test. I'm on Windows 7, I've tried all major ...
0
votes
1answer
404 views

Telnet doesn't accept Enter as a newline [closed]

I am just trying some really basic Telnet as part of a HTTP tutorial, but everything I've read assumes that the Enter key works very differently than how it's been working for me so far. So an ...
1
vote
1answer
104 views

Telnet server on linux redhat - deletes char, shifts on terminal console

When I open telnet client from local or remote console, I get damaged output in console like below example: -welcome screen appears properly (also when I put some text into nss. -1st char of words ( ...
3
votes
2answers
524 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 ...