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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-1 votes
1 answer
312 views

Sending commands to a set of session [closed]

In SecureCRT there is an option to send one command to all opened sessions (mainly for telnet/ssh connections). Does somebody familiar with some free program which can run on Windows that can do the ...
1 vote
0 answers
199 views

Issue with executing net use command through telnet session

When executing net use command for mapping cifs share to windows drive. The drive is available only for that telnet session. But when i am doing it manually the drive is available permanent. ...
16 votes
1 answer
21k views

How to determine if google public stun server is alive or usable? [closed]

I have seen a lot of of WebRTC client libraries using public STUN server like below: "stun.l.google.com:19302", "stun1.l.google.com:19302", "stun2.l.google.com:19302", ...
1 vote
0 answers
1k views

Solaris 5.10 telnet connection closed by foreign host

I try to connect to a Solaris 5.10 server using telnet, but I only see: $ telnet xxx.xxx.xxx.xxx Trying xxx.xxx.xxx.xxx... Connected to xxx.xxx.xxx.xxx. Escape character is '^]'. Connection closed by ...
1 vote
1 answer
763 views

Windows Server Port forwarding SSH to Telnet for multiple users

I have multiple installations with a specialized database framework (Intersystems Caché) that contains its own Telnet server running on port 23. Although the product does run on Windows Server 2008, ...
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 ...
1 vote
1 answer
459 views

OpenVZ - SMTP - telnet - Connection timed out

I have problem with SMTP in my OpenVZ container. I've created OpenVZ container by Proxmox on dedicated server in OVH. This container will be as mail server. So I create on "mother-server" rules to ...
1 vote
0 answers
2k views

"connection closed by foreign host" on one port but not another

server1 (suse linux) should be able to connect to server2 (redhat linux) on ports 4750 and 1080. when server1 connect to server2 (using telnet as a test) using 4750, the connection stays up and open. ...
-1 votes
1 answer
1k views

Telnet from Unix to Windows [closed]

I'm trying to telnet from a Unix (specifically, Mac OS X) laptop into a server running Windows Server 2008 R2, but am experiencing some issues. The connection is made successfully, but I can't ...
2 votes
3 answers
3k 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
2 answers
5k views

Can't connect with telnet from external ip

I have a postfix server running on a kimsufi VPS, i installed roundcube on it, and everything is ok. The problem is, when i try to connect from another server, i have a timeout : telnet whys.fr 25 ...
7 votes
1 answer
52k 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 ...
1 vote
1 answer
8k views

Some machines in my network can't access a specific website

Something pretty bizarre is happening here. I'm try to access a website from some machines inside my network and I just can't, while other machines access it normally. The website is online.sefaz.am....
0 votes
1 answer
2k views

Postfix SASL SMTP

I am getting an issue when trying to send out email on 465 secure SMTP with a Postfix + Courier with MySQL virtual users. I am able to connect with IMAP secure and download, and I can also send mail ...
2 votes
4 answers
27k 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 ...
0 votes
1 answer
73 views

Telnet, Startech, and a Transmitter

I'm at a bit of a loss and will also preface by saying that I have very little experience working with Telnet. I have Startech Serial over IP 'webserver' setup, everything seems fine on this end. Next ...
1 vote
1 answer
3k views

Telnet 3306 fails to connect to Amazon EC2

Ok, I know this has been asked a lot, but I've tried every advice I can find and I still can't telnet to my Amazon server on port 3306. Add iptables entry for accepting connections on port 3306: ...
-2 votes
1 answer
4k views

Unable to connect to telnet server [closed]

I am trying to setup a telnet server on a windows 7 PC Locally I can login by typing the followings: telnet localhost However when I am trying to login from a remote PC I am getting the following ...
1 vote
2 answers
38k views

Telnet client on redhat linux

I am trying to install a telnet client in Red hat linux server which doesn't have internet connectivity. Red hat linux version less /etc/redhat-release Red Hat Enterprise Linux Server release 6.4 (...
0 votes
4 answers
11k views

Cisco IOS: Show incoming Telnet sessions

According to show ? the show sessions command is supposed to show Information about Telnet connections. Although I'm connected, the sessions does not show up. Both devices run Cisco IOS. How can I ...
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 ...
2 votes
1 answer
395 views

Service Closing transmission on OpenSSL [duplicate]

I am trying to send email through OpenSSL as below : Client > openssl s_client -crlf -connect smtp.mail.yahoo.com:465 SERVER > 220 smtp.mail.yahoo.com ESMTP ready Client > HELO localhost ...
-1 votes
1 answer
1k views

Postfix - No greeting on telnet command

I'm trying to install Postfix with Dovecot and MySQL on CentOS 5. I'm new to this and I'm struggling on this more than 2 weeks. I followed this instruction https://www.linode.com/docs/email/postfix/...
2 votes
1 answer
639 views

remote login failed on windows XP, but remote telnet successful on mac

I recently set up an Oracle DB, started the listener on port 1561, and enabled TCP access. I then opened that port to all incoming connections. When I get on my Mac - I can use telnet remoteserver ...
-1 votes
1 answer
224 views

Is port 21 active? [closed]

I have recently installed sftp (secure shell ftp) into proftpd. Knowing that the default port for sftp is 22, I have also changed the port value from 23 to 22 in /etc/proftpd.sftp.conf. So I expect it ...
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 ...
2 votes
1 answer
207 views

Non-invasive way for our network team to run ping/tracert/etc from various servers

In troubleshooting connectivity issues, our network team lacks the rights on our servers (Windows and RHEL) to connect and test connectivity (for example, when tweaking a firewall rule, a ticket ...
0 votes
1 answer
6k views

Connect to remote host from windows using SSH/pem [closed]

So I have a .pem and I need to connect to a remote machine using that. I have been told to do: ssh -i key.pem root@remote machine Before that I am supposed to chmod 600/400 on key.pem I am on ...
1 vote
1 answer
4k views

show users connected to windows telnet server

I can't believe how bad I am at googling windows stuff. How can I list the users connected via telnet to a windows machine? It seems such a basic question, yet I couldn't find a answer. X-( Also, ...
2 votes
1 answer
68 views

Preventing SecAst access from across the network

I have SecAst up and running great, and I realize that any workstation on the network can access the SecAst telnet interface. Is there a way to limit this to only my laptop? I don't want one of the ...
6 votes
2 answers
19k 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 on-...
0 votes
1 answer
840 views

TCP RST from telnet/ssh daemons when connecting from openvpn

I have LAN_1 and LAN_2 interconnected with an openvpn tunnel terminated ona pair of SOHO routers running busybox. One of the vpn purpose is to allow clients on both LAN_1 and LAN_2, to administer the ...
0 votes
1 answer
2k views

postfix - connection refused from behind NAT

When attempting to telnet postfix from a different host in the same LAN through the FQDN (and thus the LAN's public IP), the following error occurs: root@mailer:/var/log# telnet mail.domain.com 25 ...
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 ...
-2 votes
2 answers
172 views

How to enable password for users sending emails to it self? [closed]

All emails users require password but if i login with telnet to port 25, i can send a email without password if the from and to are from a list of valid emails accounts. Can anyone tell me how to ...
1 vote
1 answer
4k views

SMTP Server setting on Windows 2008 R2

I am very very new to this and just trying to configure SMTP virtual server. I have followed a few threads to get it all running, but the mails are not being delivered. What I have done so far - 1) ...
8 votes
2 answers
14k views

Enabling the telnet client for all Windows 7 PCs on a domain

The telnet client is disabled by default in Windows 7. I would like to enable the telnet client for all Windows 7 PCs in our domain. I know how to enable it manually: Start Control Panel Programs And ...
0 votes
1 answer
117 views

Problems in testing telnet using postfix

i am quite new so please be a bit patient XD i am trying to configure a mail server using postfix (which implements a database for aliases, domains and mailboxes) and courrier on ubuntu. I have this ...
3 votes
2 answers
9k views

telnet connection refused despite ufw having ports open [closed]

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
2 answers
3k 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 ...
4 votes
3 answers
2k 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 ...
4 votes
4 answers
5k 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 ...
1 vote
2 answers
3k 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 ...
2 votes
2 answers
16k 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.
-1 votes
2 answers
23k 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? https://i.stack.imgur.com/ZAd9L.png
2 votes
1 answer
4k 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
2 answers
2k 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
1 answer
769 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
0 answers
376 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
1 answer
422 views

SSH/ Telnet PAM configuration

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

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