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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.

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

Telnet provides no inherent security and so is becoming less commonly supported. On modern UNIX-like systems it is usually replaced with more secure and flexible SSH protocol.

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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 1581 Connected to remoteserver Escape character…
jwillis0720
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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 bounces back and forth as they modify something, then…
SqlRyan
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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 end users to mess with the ban/unban interace
user220412
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Service Closing transmission on OpenSSL

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 SERVER > 250 smtp.mail.yahoo.com Client > auth login SERVER >…
Hamed Kamrava
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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 to log into the Telnet portal, but not sure what…
Rynardt
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How can I disable sending mail through postfix smtp without 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 smtpd_tls_key_file=/etc/httpd/ssl/mail.key smtpd_use_tls=yes smtpd_sasl_type =…
Young Zhou
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How to connect to other linux machine OS from windows through Telnet command

I wanted to connect to my Linux OS (specifically for Terminal prompt), through my Windows OS. I have Linux configured through a virtual machine, as well as through a separate partition. How can I connect to Linux OS from windows command prompt? How…
RBA
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File transfer using telnet

Somesimes I must work with remote host which have telnet connection but no either ftp or ssh (to use scp) also there are no netcat. Also there are no gcc (to compile netcat for example). Does anybody know how to transfer file(s) using telnet…
Alex Bolotov
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How to access a windows command line from a linux machine?

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.
Rohan Majumdar
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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 <> Internet Now the interesting thing is with Box 1, I'm able to…
user192702
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Communicating with ARIN Whois server

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 information is shown about this specific IP including…
user188986
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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 this information. Right now the TERM variable is…
LoCoZeNoz ZUE
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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 successful. I had an RJ-45 Ethernet cable connecting…
T. Webster
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Cannot telnet to port 25

When I try to telnet to port 25 using this command: telnet aspmx.l.google.com 25 I get this message Trying 173.194.69.26... And nothing more happens. I disabled csf but the problem still exsists. I also asked my VPS co. whether they have blocked…
hpn
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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 deomain replaced with xxxxx) Telnet smtp.xxxxx.com…
Tomas
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