Today Windows Azure supports up to 150 endpoints which is great for those applications that rely on persistent connections, like an FTP Server. You can run an FTP Server in 2 modes:
•Active mode: The server connects to a negotiated client port
•Passive mode: The client connects to a negotiated server port
Passive mode is by far the most popular choice since it doesn’t require you to open ports on your machine together with firewall exceptions and port forwarding. With passive mode it’s up to the server to open the required ports. Let’s see how we can get an FTP Server running in Passive mode on Windows Azure…
