The article discusses how exe.dev handles SSH connections for multiple VMs sharing the same public IPv4 addresses. By assigning each VM a unique IP relative to its owner, they can route SSH requests accurately using a combination of public keys and IP addresses. This approach allows users to access their VMs without needing a dedicated IP for each.

This article explores why SSH sends a large number of packets for a single keystroke, specifically highlighting the impact of keystroke timing obfuscation introduced in 2023. The author investigates performance issues in a high-performance game running over SSH and discovers that the added chaff packets significantly increase CPU and bandwidth usage. Solutions for optimizing SSH performance without compromising security are discussed.