I am working on a project where we are using a GSM modem with built in GPS system. The modem has setting to send GPS signal NMEA format to a remote TCP server.
Can someone consult on where should i start when creating this TCP server. If i have multiple units, how do i differentiate between them when receiving the data and etc.
If there are any online links that could help me get started, that would work as well.
P.S. The router i am using is from Multitech MTR-H5-B08.
I started with this video, may be it might help someone else who comes across this question:
https://www.youtube.com/watch?v=ve2LX1tOwIM&t=0s&list=FLjZg3rkhYw7-bIGejAqzlbA&index=2
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Is there a simple guide from where I can start creating a stun / turn and signaling server ?
I spend over a week searching for those things and couldn't find any guide where I can say:
okay, I am on the right track now - this is clear.
So far, everything is so abstract without any examples.
This is what I'm trying to achieve: a simple video stream on my local network where I'll have a server with installed usb camera on it, and an application on my iis which will connect to the usb camera and stream it to the clients, and every time when a client opens the application, will see the video stream from the server camera.
Note: since I want to use it on my local network do I really need a stun/turn server, or is there a guide that shows how to avoid it ?
Media streamed over dedicated servers HTTP/HTTPS rarely needs a NAT traversal solution. Instead, just have your web server with camera attached, on the public Internet or behind your NAT with port-forwarding enabled.
There are LOTS of streaming media solutions available as open source, free downloads, or commercially sold. A good list is here:
https://en.wikipedia.org/wiki/List_of_streaming_media_systems
I have a project on DNS reflection prevention and I need somehow to capture incoming and outgoing packets in real time... I am working on Linux Debian 8.0... can you please tell me how to do that... I looked in many websites and watched many tutorials but they were confusing and didn't help at all.. could you please help me
Thank you
You can use Wireshark for listening for network traffic and capturing the packets. A command-line version - T-shark can output structured XML, which you can store into the database using the programming language / tools of your choice.
Well..I have found some third party application regarding sending data from com port to IP. but I have not found any basic tutorial regarding them. so can anyone help me with this? I have a GPS device which I will connect to my laptop through usb to serial adapter.Now I need to send that data from a laptop to another laptop on same network. Can I use putty to view that data in another laptop(receiver)? Is virtual serial port driver meant for this kind of application?
If you do not want to write your own tool for it, you can simply use ncat and set up a daemon that reads piped data from one process and broadcasts it to all connected clients.
If you want something that reads the data from the serial port and then transmits it to clients, you'll need to write a server application that accepts connections and sends data around, but there's entire books on this. It should be easy to do for your purposes as written here, but it depends on the amount of control you need.
Alternatively you can use a virtual serial port application as you had mentioned, which might be the easiest route. The two devices will need to be on the same network unless the application supports TCP based virtualization instead of the common Ethernet based implementation.
This Python script works very well as a free "device server". Just enter the serial port configuration and the IP address and port information.
https://github.com/jaredly/pydbgp/blob/master/symbian/serial_tcp_redirect.py
This can work on both Windows and Linux.
You need pyserial.
You can always try using stand alone hardware such as the SENA LS100 device server.
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.
I was keen on knowing how can I receive calls on a web server using a GSM Modem?
I'm a newbie to it, wanted to explore the space.
Would be glad if someone can help me on this, probably with some tutorial links etc.
Thanks
You'd have to connect the modem to your server and then have some sort of background program/process that reads/writes to it. You create a serial connection and the read/write AT commands to it.