There is something that many users ask, is it possible in OS X to use my Mac as a WiFi access point? . It’s actually very simple to do. Really easy steps and does not require any application or complex configuration.
The method to do this must be started from the system preferences of your Mac , by following these steps.
The idea is to connect our Mac to the Internet via ethernet cable and turn it into a “WiFi sender” . And in this way share the internet with any device with WiFi access.
The interesting thing about this is that while “you share the internet” from the Mac, you can also use it normally.
1- After connecting our Mac to the Internet via ethernet cable, we must go to “System Preferences” and then to “Sharing” .
2- On the left we will see, among other options, “Internet Sharing” . We select it and on the right we must configure “from where to share internet” (in my case Thunderbolt Ethernet) and “by which way will they connect to internet” (there for our case we must select Wi-Fi). The configuration would look like this.