While I'm connecting to AS400 via PCOMM emulator, in network traffic(using Wireshark) telnet protocol from source(client) to destination(server AS400) is showing as Will TN3270E, while I'm using TN5250j Emulator to connect AS400 in telnet protocol is showing as Wont TN3270E
This is telling you that one client supports TN3270E (TN3270 Enhanced) and the other one does not. This is only relevant if you are doing something that requires the Enhanced standard (defined here from what I can tell: https://www.rfc-editor.org/rfc/rfc2355#section-7.2.2).
Related
I am developing an app that needs to connect to a BLE device, but i cannot find them to establish a connection and read the bluetooth device(yes, it's on) and i can connect it to another app only from this app . So, i try to sniff the bluetooth connection with bettercap in my kali linux running in WSL2, but when i try "ble.recon on" i get:
bettercap v2.28 (built for linux amd64 with go1.14.4) [type 'help' for a list of commands]
eth0: You don't have permission to capture on that device (socket: Operation not permitted)
And, if i try: "hciconfig" i get this issue
Can't open HCI socket.: Address family not supported by protocol
I think that i need to enable my hci socket or something. I need help.
I'm open to other ideas to establish a connection with tis device
Device: M1001 mopeka
App(working): gascheck
WSL2 isn’t allowed access to the network or bluetooth card directly. It is give an internal bridge IP address. From the outside, windows is making the network connections not kali. So, if you need to use this, maybe you can try dual boot.
I write code for embedded control systems and frequently use proprietary black-box modules to communicate with external devices. In my world, RS-232 connectivity is still commonplace. More and more devices, however, are joining the modern world and implementing various TCP and UDP options.
One such device runs an SSH server and interacts with an SSH client opened by the proprietary module. I have to develop code without the device. If this were RS-232, I could simply open a terminal connected to RS-232 and interact with the module, seeing what is sent and sending replies to observe the module's behaviour.
I'm looking for SSH and Telnet "servers" that would allow me to do the same for sessions on those protocols. So far, I've found SSH honeypots that allow me to see payloads from the client, but nothing that lets me send strings in return.
I suspect there's a solution out there, but I simply haven't the vocabulary to describe it. All clues welcome.
I would like to ask about the way how to establish remote connection to Linux based embedded device in the field.
I have a small linux board I want to place in remote location. It has an internet access through ethernet. Than I have a Linux server with public IP to be able to tunnel connection.
And finally, I want to connect from my PC to this device.
I don't feel yet competent enough to code my own tcp sockets etc. to reroute the connection :) So what would be the easiest way to do that only with available linux tools? And BusyBox toolset on endpoints.
Thank's a lot!
I think that using OpenVPN would be a easy way to tunnel to the device. You can cross compile it and set it up as a client on the embedded device. Then you install it on your Linux box and set it up as a server.
Finally you install it on your work PC and set up as a client there.
It gives you a virtual network where all clients can talk to each other like they would be on a local network.
I don't know why? Whenever I install AOL desktop (9.5, 9.6, 10.0) on my computer and I'm connected to the internet using cable, every thing is ok. I can browse websites and sign in to AOL.
But whenever I connect to the internet using my wireless network at home, I can not sign in to AOL, but I can still browse the web.
My wireless network uses WPA2-Personal with AES encryption type.
I always get the AC-3000 error message whenever I want to sign into AOL. None of AOL solutions could be useful to solve this.
What do I have to do ?
You didn't mention what version of windows you are using but my suspicion would be that if you are on Windows Vista/7 then the cable connection is identified as "home" or private and that the wireless connection is identified as public and the AOL connection (which used to be on port 5190 IIRC) is getting blocked as a result.
If I am right, to change what apps have access on which network types, you can follow the instructions here:
http://www.addictivetips.com/windows-tips/how-to-stop-a-program-from-gaining-unsolicited-internet-access-in-windows-7/
Although it is about how to stop a program from accessing the internet, it works just as well the other way around ;)
You could use netstat to determine what the successful connection to AOL is on the cable set up in terms of destination and IP and then attempt a simple telnet connection to the same address/port on the wireless set up to verify if this is blocked at the network/port level or if it is blocking the application (usually referred to as ACS). If the telnet connection succeeds and does not timeout, then it is an application level restriction which you will need to fix .
I am creating an iPad app, which has to communicate with a WiFi enable device using TCP/IP protocol. I have the API sets of the device for communication. Now what i want is i would like to see whether the device is responding to the requests send via TCP/IP. Please suggest a good tool for MAC OS, where i can simulate the WiFi communication and get the response messages from the device.
Thanking you guys in advance
I have just started to use MAC OSX recently and I also have the same question as yours.
Luckily I have found a good tool that you can try:
https://packetsender.com/
It's multiplatform, support both TCP and UDP client/server.
If I get your question you may use telnet. With telnet you can establish a TCP connection with the device and communicate with it, sending and receiving messages.