인프라코디

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Redis Sentinel 수동 페일오버 NOREPLICAS 500 에러 해결 방안 (Tomcat Redisson 세션 클러스터링)

인프라코디

2026년 11월 12일

Rocky Linux 9 기반 Redis Sentinel 환경에서 수동 페일오버 시 발생하는 NOREPLICAS 500 에러의 원인을 분석하고, min-replicas-to-write 0 설정으로 해결하는 방법을 정...

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Rocky Linux 9 Zabbix 6 PHP 취약점 조치 사례 (CVE-2026-109619)

인프라코디

2026년 10월 23일 2026년 10월 30일

Rocky Linux 9.8 기반 Zabbix 6 서버에서 PHP 원격 코드 실행 취약점(CVE-2026-109619)을 점검하고, Remi 저장소로 PHP 8.2.35를 적용한 뒤 PHP-FPM과 Zabbix ...

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eBPF와 bpftrace 완벽 가이드: 애플리케이션 성능 분석 및 병목점 찾기

인프라코디

2025년 08월 12일

현대의 복잡한 분산 시스템 환경에서 애플리케이션 성능 저하의 원인을 찾는 것은 마치 '유령을 쫓는' 것과 같습니다. 수많은 마이크로서비스와 인프라 계층 속에...

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Rocky Linux 9 cal 명령어 사용법: ncal의 비밀부터 셸 스크립트 활용까지

인프라코디

2025년 08월 01일 2026년 10월 30일

터미널 속 작은 거인, cal 명령어 재발견 리눅스 터미널을 사용하는 많은 이들에게 cal 명령어는 그저 현재 달의 달력을 보여주는 작고 소박한 유틸리티로 기억됩니다....

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Rocky Linux 9 chgrp 명령어 마스터 가이드: chown, chmod와의 차이점부터 setgid 활용까지

인프라코디

2025년 08월 01일 2026년 10월 30일

리눅스 서버를 관리할 때 "이 디렉토리는 개발팀만 수정하게 하고, 웹 서버는 읽기만 가능하게 하려면 어떻게 해야 할까?"와 같은 권한 문제에 반드시 직면...

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