Long Le
asked on
Running an executable through telnet.
Hi All,
I setup a Server A as a telnet server. Then client A is using putty to telnet into Server A.
I successfully connect to the server and can run commands but when I try and open an exe. Nothing happens
It just returns an empty line.When I go to Server A and open command prompt and execute the program it runs inside the command prompt window.
So not sure what I am doing wrong in the telnet setting for the program not to be starting.
I setup a Server A as a telnet server. Then client A is using putty to telnet into Server A.
I successfully connect to the server and can run commands but when I try and open an exe. Nothing happens
It just returns an empty line.When I go to Server A and open command prompt and execute the program it runs inside the command prompt window.
So not sure what I am doing wrong in the telnet setting for the program not to be starting.
Hi Long Le
I assume you installed the telnet server role in Windows?
Which OS does the server have?
What kind of EXE do you want to execute, what does it?
Also, telnet is cleartext (as David Favor stated), so everybody with a sniffer can read your user/pass when logging on, don't use that if you can avoid it.
If the servers are in the same network, best is to use powershell remote-execution / invoke for such things. Or psexec.exe tool from sysinternals if you need to achieve such things. Even its quite a hack...
regards
Thomas
I assume you installed the telnet server role in Windows?
Which OS does the server have?
What kind of EXE do you want to execute, what does it?
Also, telnet is cleartext (as David Favor stated), so everybody with a sniffer can read your user/pass when logging on, don't use that if you can avoid it.
If the servers are in the same network, best is to use powershell remote-execution / invoke for such things. Or psexec.exe tool from sysinternals if you need to achieve such things. Even its quite a hack...
regards
Thomas
ASKER
I installed telnet server on a test vm. Playing with a Motorola.MC9090 barcode gun to run a program to move inventory around.
You should still run ssh.
If you're running WiFi, anyone can hack any WiFi in a few minutes using aircrack-ng.
Then if you're running any cleartext protocol, they can scoop user/pass combos off the wire.
If you must use telnet, use 16-32 byte random hashes for user + pass, then rotate these periodically.
Docs suggest this device supports ssh, so likely best to check into ssh setup first.
If you're running WiFi, anyone can hack any WiFi in a few minutes using aircrack-ng.
Then if you're running any cleartext protocol, they can scoop user/pass combos off the wire.
If you must use telnet, use 16-32 byte random hashes for user + pass, then rotate these periodically.
Docs suggest this device supports ssh, so likely best to check into ssh setup first.
Hi Long Le
So I assume the Barcode gun should execute an "executable" on the Telnet Server when it scans something specific?
We need to know a little bit more specific what you want to achieve so we can help. I know you just "fiddeling" around and testing it. So let's do not fixate on the telnet security issue, but checking what you want program exactly.
regards
Thomas
So I assume the Barcode gun should execute an "executable" on the Telnet Server when it scans something specific?
We need to know a little bit more specific what you want to achieve so we can help. I know you just "fiddeling" around and testing it. So let's do not fixate on the telnet security issue, but checking what you want program exactly.
regards
Thomas
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Using telnet is not recommended, as this means everything you type is scrapable + hackable.
To do this via ssh, you'd run a command similar to...
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