How do I get the Mac OS X Firewall to permanently allow my iOS app?

Question

I\'m writing an iOS app that acts as, among other things, a telnet server. Naturally, it begins listening for connections as soon as it starts.

When I run the app in

Answer 1

So we want to suppress the following dialog

Do you want the application “NNN.app” to accept incoming network connections?

which appear on every activation of the Xcode iOS simulator. I believe there is now a solution for that. Basing my answer on this blog.

Simply run the following commands in a Terminal window:

#temporarily shut firewall off:
sudo /usr/libexec/ApplicationFirewall/socketfilterfw --setglobalstate off

#put Xcode as an exception:
/usr/libexec/ApplicationFirewall/socketfilterfw --add /Applications/Xcode.app/Contents/MacOS/Xcode

#put iOS Simulator as an exception:
/usr/libexec/ApplicationFirewall/socketfilterfw --add /Applications/Xcode.app/Contents/Developer/Applications/Simulator.app/Contents/MacOS/Simulator

#re-enable firewall:
sudo /usr/libexec/ApplicationFirewall/socketfilterfw --setglobalstate on

For me it worked. Please note simulator address is according to Xcode 8.