can we have wireless active sync for getting mail in mobile from exhange server in brew
If you mean "Is it possible to write a software that communicates with an Exchange server" - yes, as BREW has a TCP/IP networking library.
If you mean "Where do I get an app for that", there are probably several options - I found Remoba's RemoSync which is available on Verizon in the US.
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I have a web application (hobby project) with a chat function that is implemented with Express.js and socket.io.
Everything works fine on PC and on Android phones, but as soon as you connect with an Apple device, there will be problems since it seems that no websocket connection can be established between the server and the Apple device.
After a bit of googling I found this page:
https://socket.io/docs/v4/troubleshooting-connection-issues/?fbclid=IwAR2XeuehqJkkgFoshFKSVN7sz4UUfWkZ0CPYmsWnqXm-0Q17iVC3dRDyEEI#problem-the-socket-is-stuck-in-http-long-polling
I have limited abilities to troubleshoot on the client side since we do not have a Mac but I followed the troubleshooting that they recommend for the server side. When you connect with an Apple device, it seems that the event "upgrade" is never triggered and you therefore have to settle with HTTP Polling instead of web socket, which does not provide a good user experience.
I have got a certificate from Lets Encrypt and am using HTTPS to access the webpage. I have also tried with several different browsers on the Apple devices.
Anyone have an idea why you can not create a web socket connection with Apple devices and what you could do about it?
Feeling a bit lost and would love some help!
I have implemented a web service on my mac and I am able to access its functionalities through the url "http://localhost:8080/ServiceApp-war/resources/".
As I got satisfying results that I could see in the iPhone simulator in Xcode, I decided to connect my iPhone and test on it. But for this to work I think I need to change the "localhost" in my URL to the IP address of my mac.
I tried to replace it with my public IP address and I got a "could not connect to the server" error on my console. I also tried to replace "localhost" with the IP address I found in System Preferences-->Network-->Wi-Fi and I could see that it was working on the simulator but still nothing when I connect my iPhone and run the application on it.
Please provide a solution for accessing my web service remotely.
Thank you.
Create hotspot from your mac, connect to it with your iPhone and try again.
<lame solution>
Try some service for temporary domain, it will make your computer accessible from anywhere.
How do you "connect" your iPhone? USB connection does not create a network. Well, it does create if you turn on Personal Hotspot on your iPhone (maybe in some other cases, dunno). But the most simple way is to connect Mac and iPhone to the same WiFi network.
Once connected, you can use any of "ping" apps available on App Store. Just look for "ping" (some kind of "network reachability test" or so). You can check if your Mac is really reachable on the network.
If it's not reachable, check your network settings on both devices: do they belong to the same subnet, do they use the same gateway, etc.
If your Mac is reachable with ping, then you should deal with your web service. I setup the web server (which is already distributed within OS X): it already has all the settings to allow other devices to connect. But your web service may require some additional setup. It's two basic things: it should bind to your IP address (please check http://YOUR.IP:8080/ServiceApp-war/resources/ from your Mac!) and second, accept incoming connections from other agents, you should find it somewhere in its settings.
Ngrok was the perfect solution I was looking for.
https://ngrok.com
You could also try finch, which is similar to ngrok. It has a nice friendly GUI. https://meetfinch.com
Is it possible to create a chat application that works with Peer-To-Peer, so without a server connecting the devices?
I think this would be more trustworthy for users...
Yes it is possible, but you will still need some type of server or middleman that everyone connects to at first in order to find the people to chat and distribute their ips to each client, but from that point onward you can use tcp to connect the devices without a middleman.
I've recently noticed that some iOS applications, such as the Astrill VPN Client, are able to create and dial VPN connections. In this specific case they seem to be Cisco IPSEC connections. I have not been able to locate any official Apple documentation on how to do this. Can anyone please tell me how this is possible?
Please note that I know how to configure VPN connections manually. The reason I want my application to do it is to provide an idiot proof and streamlined process for customers.
These iOS apps achieve this by installing a VPN dialling profile that contains a VPN On Demand setting for a specific network and then simply try to connect to an address on that network, which prompts iOS to establish the VPN connection.
VPN On Demand can only be enabled for the IPSec (Cisco) connection type. You can create a dialling profile to do this using the iPhone Configuration Utility to see how it works.
I am developing an application which requires connection to the internet. Till now i have been using Wifi and WAP 2 connection UID for Http connection and everything has been working fine. But now the client is telling that he wishes to use direct TCP connection as using WAP2.0 connection costs him a big amount.
I am not having clear understanding about APN settings. I have goggled a bit and appended 'deviceside=true' to the url and then set the APN in the Settings->Advanced Options->TCP/IP. But everytime I run the application, I am getting 'Timed Out' Exception.
My client is using O2 carrier. I googled and found out that APN for 2 are 'mobile.o2.co.uk' and 'wap.o2.co.uk' but using these two also client is not able to make Http connection. Is there any way of free unlimited internet connectivity in third party applications?
I am not having a clear understanding of APN settings so kindly bear with me. I am using OS 4.5
Eargerly waiting for reply.
Welcome to the confusing world of network transports on BlackBerry! You will want to start with the article Connecting your BlackBerry - http and socket connections to the world.