Ever had your SSH session disconnect right in the middle of a production deployment? I have. After...
SSH drops every 3-5 minutes root from idle timeouts, network instability, or firewall blocks; 8-step diagnostic (network→resources→logs→keepalive→firewall) pinpoints cause. For DevOps, this stalls deployments; tmux + ServerAliveInterval 60 + firewall audit prevent most incidents and preserve session state.
Ever had your SSH session disconnect right in the middle of a production deployment?
I have.
After getting burned by it a few times, I created a simple troubleshooting checklist that helps me quickly find the root cause.
You're in the middle of a critical deployment or debugging session on a production server.
Suddenly:
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