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AI-generatedWhich PuTTY keep-alive interval prevents NAT timeouts without triggering server-side security alerts?
PuTTY provides a mechanism under Connection > SSH to send null packets at specific intervals to maintain active sessions. This is primarily used to prevent firewalls or NAT gateways from dropping idle TCP connections. While this client-driven behavior ensures session persistence, there is a tension between maintaining the connection and avoiding security
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ssh