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sysctl 런타임 파라미터와 부트 파라미터를 활용한 Linux 커널 튜닝 전략을 다룬다. 네트워크·메모리·파일시스템·보안 항목별 권장값, 변경 전 백업/검증/롤백 절차, 그리고 프로덕션 적용 체크리스트를 정리한다.
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