DNS 내부: 주소창에 google.com을 치면?
재귀적 질의, 레코드 타입, 캐싱 전략, DNSSEC/DoH 보안, 컨테이너 DNS, GSLB, 실전 트러블슈팅까지 DNS 내부를 완전히 파헤칩니다.
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