I have a server running on localhost:5000 on my desktop, and when I make http requests through my react-native app when running on the iOS simulation to it, it works. However, when I connect to a real device, the http requests don't work. What am I doing wrong? Is there something I have to configure?
localhost in your desktop is not the same ip of the localhost of your device.
Get the ip of your computer by typing ifconfig in a terminal, then replace localhost by this ip, you should type something like that in your device browser:
192.168.0.23:5000
Maybe my answer is too late but I ran into a similar situation today and I got it to work by running my node server using the IPv4 of my desktop and then making the request to that IP.
For example, I am running my nodejs development server at http://192.168.0.135:3000(local IP of my desktop) instead of localhost and then I make the fetch API request from my react-native app to http://192.168.0.135:3000/.
Just make sure your nodejs server and your app are on the same local network. My react-native server (metro bundler) is running on a separate PC also in the same wifi network.
If your are on macOS go to settings -> Wifi / and show more,
on bottom you see "IP address", it's your correct localhost for ios physical device !
The error I am receiving is: Connection to http://localhost:8081/debugger-proxy?role=client timed out. Are you running node proxy? If you are running on the device, check if you have the right IP address in RCTWebSocketExecutor.m
I have tried changing from localhost to my computer's ip address as mentioned in other stackoverflow post's but it still doesn't seem to be working.
For local development, I try to access the mac localhost from an iOs device.
The mac and the iPad are conected to the same network (respectively with ethernet and wifi). The firewall is off on the computer.
From the terminal, I run webpack-dev-server on the current project and it is visible in the browser at http://localhost:8080
I try to access it on the iPad at http://my-ip-address:8080 but "safari could not open the page because the server stopped responding" (where my-ip-address is either http://my-mac.local or http://192.168.0.40)
How can I access localhost from the iPad?
I built the SimpleTunnel sample app (provided by apple) and am running the VPN client on a IOS device and the VPN server (tunnel_server) on a MAC running OS 10.11 (OS X El Capitan)
On MAC :-
$ sudo ./tunnel_server 550 ../../tunnel_server/config.plist
Response :-
tunnel_server[87725:2604682] Starting network service on port 550
tunnel_server[87725:2604682] Network service published successfully
On IOS device :-
Next I ran the PacketTunnel app on my IOS device. Added a VPN configuration with the correct IP address (the IP address of the MAC running the tunnel_server) and the port number (port number for the tunnel_server which is 550).
Next I try to connect to the VPN from the IO device and this seems to go through fine as I see the VPN sign in status bar.
Response on the screen running tunnel_server :-
tunnel_server[87739:2606312] Accepted a new connection
tunnel_server[87739:2606312] Allocated address Optional("10.8.0.15")
However I am not able to browse the internet using Safari on the IOS device (it times out), but am able to do the same from the MAC.
Any insights on what I might be missing ?
Please note that my MAC doesn't have OS X server installed. Also I did run the following two comands from a terminal before starting the tunnel_server on the MAC
sudo sysctl net.inet.ip.forwarding=1
sudo sysctl net.inet.ip.fw.enable=1
After upgrading to OSX Yosemite, I can no longer test my app on a mobile device by using my development machine's (MacBook Pro) IP address. For example, I used to be able to view a Rails app on a phone by going to http://192.168.0.4:3000, but now I get the following error:
ERR_CONNECTION_REFUSED
I get the same error when testing an AngularJS app using the grunt server running at http://192.168.0.4:9000
Any help will be greatly appreciated.
It could help to bind the server to your local IP, like
rails s -p9000 -b192.168.0.4
to start your rails app
Consider giving a try to Pow. Its pretty simple to install, and a great solution to share a local development across multiple devices.
Like it explains in their homepage, you can install it with just :
curl get.pow.cx | sh. To prevent any errors, install in Terminal app outside a Tmux session.
And just symlink your app :
cd ~/.pow
ln -s /path/to/myapp
You can access your app at http://myapp.dev/, and at http://myapp.[your ip address].xip.io from another device.
Not a direct response to your issue, but an alternative to setting yourself a configuration in your preferences.
Turn IPv6 off. It Prevented me from connecting to my localhost from other computers on my LAN. And, with the newer versions of OSX there is no way to turn it off in the Network Preferences Panel so you have to do it from terminal.
Open Terminal and enter to turn it off:
networksetup -setv6off Wi-Fi
And this to turn it back on:
networksetup -setv6LinkLocal Wi-Fi
If you are connected via Ethernet or something else just run this command to list the available options:
networksetup -listallnetworkservices
and replace "Wi-Fi" with the appropriate device.
I don't have a mac, but that seems to be the server not accepting connections, if that is the case, it's only accepting localhost connections, try binding de server to accept all connections or bind it to 0.0.0.0 ip
Can you access that IP from Browser? are you sure your IP is in the same range with 192.168.0.4? It is your mobile device connected on the same network? Maybe you used internet sharing before update to Yosemite and now is off?
I think your IP address changed. Telnet from console(terminal) your I.P. port. If 192.168.0.4 is your real Ip then maybe add(as root or via sudo) an entry in /etc/host file an entry as 127.0.0.1 192.168.0.4. Restart network or reboot. Also you can try nmap ( on ip to see open ports). Nmap has been ported to OSX just google for installer.