Questions tagged [telnet]
An unencrypted client/server protocol for remotely accessing another system.
229
questions
0
votes
1
answer
66
views
HTML telnet howto do
I have this code:
<a href="telnet://localhost:33330">
<button>MUD</button>
</a>
<a href="telnet://localhost:24">
<button>Renegade BBS</button&...
1
vote
0
answers
85
views
how to find the telnet ip address and port number of hosts running in eve-ng VM?
I am running an eve-ng VM, and running a couple of nodes (routers) in it. The common problem is, when I click on the nodes, it opens its console in the browser. I installed the client side pack, but ...
0
votes
1
answer
242
views
How to see details of TLS telnet?
Debian (and other distro if you recompile the source) can use a ssl version of telnetd.
telnet-ssl -z cacert=/etc/ssl/certs/mydomain.crt -z cert=/etc/ssl/certs/client.mydomain.crt -z key=/etc/ssl/...
0
votes
1
answer
2k
views
Telnet connection refused
I have been trying to connect using telnet. I keep on getting Connection refused.
After checking ports listening, I observed the port is listening to the localhost IP 127.0.0.1 but I wanted it to ...
0
votes
0
answers
26
views
Source env variable resolved instead of local env variable
I am having the following issue with Enviroment variables:
In my linux server I have an enviroment variable HOSTNAME (has value SERVER_HOSTNAME)
In my Linux box I have another enviroment variable ...
1
vote
0
answers
48
views
.telnetrc not being read at startup of telnet
I'm trying to set up some telnet commands in ~/.telnetrc
and they are not being read. The file is
DEFAULT
mode line
When I go into telnet and do a "display", I get ...
environ ...
2
votes
1
answer
220
views
ansible telnet isn't working
I am trying to use the telnet command with ansible expect module to push initial configuration but it's not working, I am suspecting the issue is with the responses section, here is my playbook:
- ...
0
votes
1
answer
358
views
telnet with ansible to cisco switch isn't working
I have a cisco switches in my lab, since they initially have telnet connection configured I want to use it for initial configuration with ansible (SSH access, hostname, domain ... etc).
I'm trying to ...
0
votes
0
answers
113
views
How can I write a command into a subprocess?
Currently, I am working on a project where I use telnet to netcat to send an email message within my university.
I am trying to make the process automated but my script can't seem to enter in any ...
0
votes
0
answers
298
views
SSH or telnet as an unpriviledged user leads to 'socket: Permission denied' error
I'm running a strange 3.0.35 heavily patched kernel on an embedded device (Kobo eReader). Maybe it partly explains this issue.Basically:
kobo:/$ ssh [email protected]
socket: Permission denied
ssh: ...
0
votes
0
answers
350
views
Not able to grep telnet output correctly
I am writing an script to verify connectivity for multiple external system with timeout of 10s.
How do i avoid "Connection closed by foreign host" text from this script. I am doing grep only ...
0
votes
1
answer
155
views
Unable to get PID on a Listening port for Solaris
I'm using solaris
SunOS myhost4 5.11 11.4.42.117.3 sun4v sparc sun4v non-global-zone
I'm sure that port 7777 is in use as the telnet is successful as below:
$ telnet myhost4 7777
Trying 10.23.52.219.....
0
votes
1
answer
322
views
Is there an alternative for xinetd that supports control characters?
I am writing a project that allows users to connect in and run specific commands. xinetd is an option but pressing Tab via either nc or telnet will type an indentation.
Is there a net daemon that can ...
0
votes
0
answers
2k
views
Telnet error - "Connection timed out"
I am trying to telnet a port at a client's location.
telnet someexampledomain.com 25
It shows:
Trying someexampledomain.com...
telnet: connect to address someexampledomain.com: Connection timed out
...
0
votes
0
answers
642
views
Issue when installing telnet on centos8
I am trying to install telnet on a centos8 server but keep getting this error:
I have also used dnf command(dnf install telnet) but get the same error message.
I use the following on line tutorial ...
0
votes
1
answer
1k
views
ufw won't allow connections to postgres port 5432
With ufw disable on remote postgres system i'm able to connect from my local system
However, the connection does not work when I ufw enable as shown below:
C:\Users\HOME>telnet 80.240.24.195 5432
...
1
vote
0
answers
44
views
How many simultaneous terminal pseudo connections can support my linux server?
My debian distribution has 62 virtual text terminal in /dev/tty.
Does this mean that my server can support up to simultaneous 62 ssh or telnet connections?
For each connection I note that it created ...
0
votes
1
answer
545
views
Firewall is active, added port to iptables but still cannot connect
We have RedHat 8 server. Firewalld is active.
I need to connect to port 5050 from my lap top and from the second server, so I added it to the rules
iptables -I INPUT -p tcp -m tcp --dport 5050 -j ...
0
votes
2
answers
764
views
Unable to connect telnet to mysql listen ip port from remote host
I m able to telnet locally to mysql process like below:
I have also made sure MySQL process is listening on all IPs by setting bind-address = 0.0.0.0 as evident below:
root@localhost:~# netstat -plutn ...
1
vote
1
answer
347
views
Raspberry PI ArchLinux telnet server 4 times Login incorrect
I installed via pacman -S inetutils telnet and want to try to login via telnet but if i use telnet localhost to connect
This comes up
[root@alarmpi ~]# systemctl restart telnet.socket
[root@alarmpi ~]#...
0
votes
0
answers
323
views
Get screen serial port in remote
I have some industrial equipment with serial ports equipped. There are 2 serial ports on each one (COM1 /dev/ttySC0 and COM2 /dev/ttyAMA0).
Before sending to production, to test the correct ...
-3
votes
2
answers
2k
views
How to disable telnet on a Debian 11
As per title, how can I disable telnet on a Debian 11 server?
I think I can (how?) block port using ufw, but... how can I disable the service itself?
I tried
systemctl disable telnet
But
Failed to ...
1
vote
2
answers
474
views
linux telnet server check password file
in linux centos 7
linux using telnet server
What is the name of the file responsible for checking the password,
whether it is valid or not?
0
votes
1
answer
166
views
centos 7 decrypt and encrypt library [closed]
I have installed telnet server in my centos 7.
I need to make some modifications to the telnet connection to the server. I have a library to check telnet login. It is encrypted. I need a decoding ...
0
votes
1
answer
331
views
listener message on port 23
I want to have a message to anyone that tries to telnet (port 23) to my server that they are connecting to the wrong port, then disconnects them.
Basically something like socat would be ideal, but I ...
0
votes
0
answers
811
views
Asynchronous json post requests with cURL, minimize overhead?
I think my method to make asynchronous post requests to API endpoint has some overhead. From stackoverflow I learned that libcurl is an alternative way but I am not familiar with libcurl and that with ...
0
votes
1
answer
126
views
Help with a deciphering command with telnetd in it
Help with deciphering commands
[ $1 -ge 20 ] && telnetd -p 233 -l /bin/sh
I know /bin/sh is a Bourne shell and telnetd is a telnet daemon but I'm not sure how they work together. I think ...
0
votes
0
answers
259
views
Telnet not working for a specific process
I have etcd process running on serverA on port 2379. I am trying to telnet to serverA from serverB and its showing connection refused.
# telnet <IP_serverA> 2379
telnet: Unable to connect to ...
0
votes
1
answer
1k
views
Telnet not working for non root user RHEL 8.2
I am getting the following error when trying to use telnet in RHEL 8 telnet: Command not found. I have installed telnet and telnet-server however strangely telnet is working when i am the root users ...
0
votes
1
answer
911
views
netcat / nc / telnet perform math on received data then output
I am not an expert on bash so sorry in advance. For my high school CTF competition, I have to read in 3 numbers, perform some arithmetic on them, then output the value back to the server.
In ...
1
vote
2
answers
7k
views
Failed to start Telnet Server: "Unit telnet.service not found"
I am doing a research on Telnet communication and I need to test its communication although it is not secure.
I have an Ubuntu machine 18.04 on my EC2 (I opened inbound port 23 for everyone in AWS).
I ...
3
votes
1
answer
7k
views
Testing connectivity and port availability using SSH instead of Telnet
Assume that you have a pair of UNIX/Linux machines. You want to check if both machines can connect to each other via an arbitrary port, say, TCP 111.
Log into the shell of Machine 1 (10.0.0.1). If ...
1
vote
1
answer
974
views
How to establish tcp connection between host to vm using ssh or telnet
As a part of learning, I'm trying to establish a tcp connection between host and VM using telnet or ssh. I'm using linux-debian.
After establishing connection, I'll try to analyse packets using ...
2
votes
1
answer
900
views
What's the difference between the telnetd and inetutils-telnetd packages in Ubuntu?
Recently, a work came to me which needs to set telnet on linemode.so i install telnetd with apt install telnetd, which is controlled by inetd, and this operation will add new line telnet stream tcp ...
0
votes
2
answers
576
views
How to connect to a telnet service by bash?
What I am trying to do is connect through telnet and download a database but I can't find the way to do it, I have tried it with python but it only closes the connections, so I would like to know if ...
1
vote
2
answers
383
views
telnet & ping - different results
I'm trying to debug a private connection between to CentOS servers
I'm trying to connect to MySQL from server 1 ( Web ) to server 2 ( MySQL )
On both I've setup the network devices with firewalld - ...
1
vote
1
answer
473
views
Share Telnet connection as a proxy
i have telnet connection to device behind firewall
(there is no SSH)
and i want to use this connection as a proxy to give local network access to Firefox for example
if is possible using Putty
...
2
votes
1
answer
976
views
Telnet connection to Debian machine refused
I'm trying to connect Debian 8 machine via telnet but I get login error shown in below
# telnet 192.168.88.48
Trying 192.168.88.48...
Connected to 192.168.88.48.
Escape character is '^]'.
Debian ...
1
vote
1
answer
974
views
How to determine Connection Refused Issue? [closed]
We have a linux server which runs a java process(Hazelcast) on port 5701. However, we are facing issue while connecting to that server and it result in a Connection Refused issue. Below are the ...
0
votes
2
answers
419
views
Stay connected while executing a remote WGET command?
I use Putty to remotely login into SERVER 1 and issue a WGET to another SERVER 2 to make a backup of a large directory.
My question is, do I have to stay connected while this process occcurs? Or, is ...
1
vote
0
answers
5k
views
Telnet: Connection refused for specific port only. [CentOS 8]
I am trying to connect from one server to another through its IP address using telnet as following:
[root@01 ~]# telnet 10.10.7.7 6379
Trying 10.10.7.7...
telnet: connect to address 10.10.7.7: ...
0
votes
1
answer
5k
views
Ping works, but I get 'No route to host' even though my firewall is off
I want to check if I can connect to Rspamd's Fuzzy port and have a very strange problem - I can ping a the host and get an answer (0% packet loss). But when I try to telnet him, I get "No route to ...
0
votes
1
answer
5k
views
vsftp server returning 500 Illegal PORT command when tried to run raw ftp commands in telnet
Currently, I am trying to run ftp commands from telnet client. I was successful with USER, PASS, PASV, LIST and when tried PORT vsftp server is throwing 500 Illegal PORT command. I am following the ...
1
vote
1
answer
450
views
telnet refuses to connect when /bin binded to another location
I am working on a router and its firmware is read-only as expected. The busybox they used are trimmed down version of the original tool so i cannot use all the tools necesseray. This router has also a ...
2
votes
0
answers
114
views
Keyboard input to a serial console redirected to telnet
I'm trying to install a Cisco Nexus 9000v VM on VMWare Workstation on a Linux machine. That's how far I got:
After importing the .ova file I set up a serial console in the VM settings whereby I chose ...
1
vote
1
answer
5k
views
Why do I get connection refused when I telnet port 2194?
I'm setting up an OpenVPN access server and I continuously get the error "connection refused" on my client(s). So i decided to start debugging from the beginning (the server) and tried telnet 127.0.0....
3
votes
2
answers
509
views
I want to print exact word from the command output
telnet test | grep -o Unable
telnet: Unable to connect to remote host: Connection refused
Only 'Unable' should be the result.
0
votes
2
answers
2k
views
How to generate invalid HTTPS request from command line?
So, I am interested, is it possible to send an invalid HTTPS request via command line in Linux, to receive the server's "Error 400" page?
It's possible to generate an invalid HTTP request using "...
0
votes
2
answers
423
views
Get all the open ports for a remote host in linux
Trying to connect to a particular port for a remote host. The host is reachable (checked via ping command) but the port is not accessible.
Is there any way to check all accessible ports for that ...
0
votes
1
answer
834
views
Dial-up vintage BBS access with agetty and a modem
I'm trying to setup a 80's service with Mystic BBS (that runs on telnet), including a dial-up access with a U.S. Robotics modem connected to the serial port of the server. I succeeded with mgetty:
/...