Is there any method to access iphone serial port. I have search many documents but failed to send at command to tty.ipa or uart.debug port.
Related
I have a network application environment of 7 applications communicating with eachother through UDP and TCP. All of them using either the machine's local network IP or 127.0.0.1 (localhost) to listen on ports or connecting to eachother.
All these applications are running on a single test machine.
I want to analyze precisely how each application communicate with the others so I tried Wireshark and Netmon. However both Wireshark and Netmon don't show me any of the packets sent or received by any of these applications.
What can I do to analyze this environment? Does Wireshark or Netmon able to analyze that? Is there a problem tracking packets using same source and destination IP?
what interface did you select in Wireshark for capturing traffic?
For your case, I think you should select "Adapter for loopback traffic" in Wireshark.
It will capture loopback communication for your locally hosted application.
I am working on an embedded linux based device that runs ubuntu. Now the device driver for the wifi is really crappy so I cannot create a hotspot so this device connects to another device which is running a hotspot. Now I am connecting to that device for some input but at the same time connecting to internet to send mqtt message using paho mqtt in python via a gsm modem. The modem connect to internet using pon command and it works nicely. But when both connections are running, paho-mqtt cannot connect to internet anymore. pinging using -I ppp0 works fine. I tried to bind ppp0 ip address to paho-mqtt client using the bind_address argument but it does not work. How to resolve this issue?
I'm trying to run a socket connection from my iOS app to a bespoke server.
The iOS communicates via UDP to the server on port 12345. The request needs to come from socket 54321 on the device.
How do I open up a socket connection on iOS that communicates to a server on one port but listens via a different port.
I have followed the example on:
https://www.raywenderlich.com/3932/networking-tutorial-for-ios-how-to-create-a-socket-based-iphone-app-and-server
But this does not cover the local port
I have also looked at the documentation on https://developer.apple.com/library/ios/documentation/NetworkingInternet/Conceptual/NetworkingTopics/Articles/UsingSocketsandSocketStreams.html but I am finding it unclear due to my limited knowledge of socket connections.
I am currently attempting to use https://github.com/robbiehanson/CocoaAsyncSocket/wiki/Reference_GCDAsyncSocket
But I don't seem to be able to control the local port.
Thanks in advance
Normally you don't care about the sending socket, but when you create your AsyncUDPSocket you can use bindToPort: to set its port. Then use sendData:toHost:port:timeout:tag: to send the data
I have been trying to figure out the exact issue. I have two UDP base services running on my local Wifi network. My Bojour discovery app NOT able to discover one of the service(Real) 3 out of 10 times. Where as it discover the other service(Simulation) 10 out of 10 times.
When i run this command
dns-sd -B _coap._udp.
on terminal, its showing me both of the services. Then why my app failing to discover the Real service some of the times.
I have setup a local REST webservice with MAMP.
I have setup a virtual host with the url "http://aem.davidcasillas" pointing to my public folder.
MAMP is listening on port 80.
If I access via Safari to "http://aem.davidcasillas/webservice/rest/getEventosToday" I get the correct json data.
Now I'm trying to access this web service from my iPhone application. I run it from XCode into the device.
The device is connected to my local network via WIFI, and the connection is working (I can load webpages in safari)
I'm using RestKit to download the data and I'm trying to reach it with the same url I use in my Mac: "http://aem.davidcasillas.es/webservice/rest/getEventosToday".
In the device I get the error:
NSURLErrorDomain -1003 Found no server for the specified host name.
How should I write my url so I can reach the web service from the iPhone?
NOTE: I have read this post: test local websites with mamp on iphone? but none of this problems apply to my case. I have firewall disabled and my config.ini file shows the following listen line:
Listen 80
I have found a workaround.
I use the WIFI ip address in SystemPreferences->NetWork in my Mac and then the whole path to the resource, so instead of:
"http://aem.davidcasillas.es/webservice/rest/getEventosToday"
I am writing:
"http://192.168.1.6/aem.davidcasillas.es/public/webservice/rest/getEventosToday"
The 192.168.1.6part takes me to my local installation root folder /Applications/MAMP/htdocs/.
In the rest of the path I have to put the whole path to the resource. Notice that I have to include the public folder in the path. Hope I could use my virtual host setup, but have not found a way.
When I run hostname, it prints out
> hostname
ddopson.local
You can edit this in System Preferences ==> Sharing ==> Computer Name(text box at the top). Note that in the "computer name" textbox, I filled in "ddopson".
If you are on WiFi, you should be able to connect to that hostname (ddopson.local) from your iPhone. This works because both iOS and your Mac support Multicast DNS where a multi-cast UDP packet is emitted onto the L2 network to lookup local hostnames. When your Mac hears this multi-cast packet, it will reply to your iPhone with its ip-address and off you go.