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BUG-0480project-52高已修复backend-auth
SSH hardening lockout
发现：2026-10-06验证：2026-10-09置信度：80%
症状
Cannot SSH after config change
根因
SSH hardening one-shot locks access
修复方案
Two-phase: 1) prep non-root account with pubkey and sudo, 2) test login, 3) then restrict sshd
错误签名
lockout技术信息
来源项目
project-52
涉及文件
/etc/ssh/sshd_config
标签
project-52, mcp-reported, source-agent