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Goal: Identify the concurrency level at which SSH connection multiplexing via ControlMaster ceases to provide lower average latency than establishing independent connections for each request. Constraint: With ControlMaster enabled, the initial connection cost is amortized, but under high concurrency the shared multiplexed channel introduces contention for wi
Goal: migrate a small application over SSH without noticeable downtime while the client may switch networks, causing its IP address to change. Constraint: the migration must avoid repeated authentication and keep interruption to a minimum, but OpenSSH does not natively support IP‑address mobility, so any change in client IP breaks the existing TCP session. U
Multiplexing and Connection Persistence OpenSSH utilizes ControlMaster and ControlPersist to allow multiple sessions to share a single TCP connection, bypassing repeated authentication handshakes for subsequent slave channels. Data Integrity During Reconnection A technical uncertainty exists when a master connection experiences a network timeout while a slav
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