Do SQL Server Alias' work across a network?

Question

We have a server entering end of life. We have multiple apps that hit that server. So that we don't have to manually change all of those apps to point to the new server I wanted to use an alias. The alias name being the name of the old server.

When I create the alias I can connect to that alias name in SSMS from that server. But, I can't connect to that alias via SSMS on a different server. Why can I not connect to the alias name I gave my sql server over the network? What am I missing?