I write this post for asking what I have to do in this Lab, because I dont understand well what I have to do. I removed my third node, but then I dont know what I should change. What means exactly this part of the text?:
""In this lab, you will modify the replica set so one of the nodes uses the hostname m103, the virtual machine hostname, instead of the external IP address of the Vagrant box.
To correctly reconfigure this node, you will have to remove the node from the replica set, and then add it back with the correct hostname. For this lab, you only need to do this for one of the nodes in the set.""
Please help me!! Thanks you