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스퀴드 (이미지캐싱) 초기화 명령
https://sysdocu.tistory.com/79


스핑크스 (sphinx) 설치 - 검색엔진 만들기
https://sysdocu.tistory.com/85


lsyncd 동기화 (inotify + rsyncd)
https://sysdocu.tistory.com/87


쉘스크립트 암호화 (바이너리 파일로 변환) - shc, bash-obfuscate
https://sysdocu.tistory.com/101


[RAID] LSI SAS2008 PCI-Express Fusion-MPT SAS-2 [Falcon] 모니터링 툴 설치
https://sysdocu.tistory.com/112


free -m 에서 free (남는 메모리 양) 최소량 제한하기
https://sysdocu.tistory.com/115


우분투 /etc/resolv.conf 네임서버 초기화 문제 해결방법
https://sysdocu.tistory.com/131


오픈소스 채팅 서버인 Openfire + 클라이언트 Spark 설치
https://sysdocu.tistory.com/138


CentOS 에서 grub 부트매니저 복구
https://sysdocu.tistory.com/589


GRUB 복구(재설치) 작업 - Fedora 4 기준
https://sysdocu.tistory.com/590


rsync 하기 (패스워드 물어보지 않게하기)
https://sysdocu.tistory.com/593


rsync 사용시 타서버 ssh port가 다를때
https://sysdocu.tistory.com/598


Darwin Streaming Server 6.0.3 설치 (스트리밍 서버)
https://sysdocu.tistory.com/973


lsyncd 설정
https://sysdocu.tistory.com/974


sshpass 사용법
https://sysdocu.tistory.com/1033


[cifs 마운트 에러] CIFS VFS: Send error in SessSetup = -22
https://sysdocu.tistory.com/1129


CentOS 에 NTP Server & Client 구축하기
https://sysdocu.tistory.com/1219


오래된 파일 삭제하기
https://sysdocu.tistory.com/1227


youtube-dl 사용법 (youtube 영상, 음악 다운로드)
https://sysdocu.tistory.com/1265


CentOS 7 에서 FFMpeg 설치하기
https://sysdocu.tistory.com/1266


Docker 기본 명령어 및 WEB UI 설치하기 (portainer) - CentOS 7.x
https://sysdocu.tistory.com/1309


Docker Portainer 설치 테스트 on CentOS 7
https://sysdocu.tistory.com/1316


NFS 설정 방법 (간단) - CentOS 7
https://sysdocu.tistory.com/1347


ipvsadm (로드밸런싱) 설정
https://sysdocu.tistory.com/1369


haproxy on CentOS 7
https://sysdocu.tistory.com/1378


SAMBA 서비스 포트 변경 및 마운트 하기
https://sysdocu.tistory.com/1389


Google OTP를 사용한 SSH 인증
https://sysdocu.tistory.com/1390


cifs 에러 (CIFS VFS SessSetup = -13)
https://sysdocu.tistory.com/1447


vim 사용시 검색 단어 바탕색 표시하기 (하이라이트)
https://sysdocu.tistory.com/1449


기본 에디터, 기본 편집기 변경하기 (nano -> vim)
https://sysdocu.tistory.com/1575


리눅스 삭제된 데이터 복원하기 (extundelete)
https://sysdocu.tistory.com/1605


Ubuntu 18.04 텔레그램에서 한글 사용하기
https://sysdocu.tistory.com/1619


CentOS 에서 CPU, Memory, HDD 부하 주는 방법 (스트레스 테스트)
https://sysdocu.tistory.com/1631


OpenSSL 업그레이드 (소스 설치 / 1.0.1k to 1.1.1o in CentOS 7) 및 APM 적용하기
https://sysdocu.tistory.com/1691


CentOS 7 에서 OpenSSH 취약점 (취약한 알고리즘) 조치 방법
https://sysdocu.tistory.com/1699


Zabbix API 예제
https://sysdocu.tistory.com/1706


[에러] Too many open files 조치하는 방법 (ulimit 명령어)
https://sysdocu.tistory.com/1734


SSH 접속 에러 : Unable to negotiate with 192.168.10.2 port 22: no matching host key type found. Their offer: ssh-rsa,ssh-dss
https://sysdocu.tistory.com/1761


Docker 기본 명령어 및 WEB UI 설치하기 (portainer) - CentOS 7.x
https://sysdocu.tistory.com/1309




톰캣 도메인 추가하기
https://sysdocu.tistory.com/348


서치엔진(robot.txt )을 피하는 방법
https://sysdocu.tistory.com/355


이미지파일은 로그에 남기지 않기
https://sysdocu.tistory.com/358


apache 이미지캐싱 - mod_expires
https://sysdocu.tistory.com/359


스마트캐싱 (squid 3.2.0.3) 설정
https://sysdocu.tistory.com/380


다른 도메인 세션 저장 (DB) - 세션 공유
https://sysdocu.tistory.com/381


[그누보드] 관리자 패스워드 분실
https://sysdocu.tistory.com/395


Hudson 설치
https://sysdocu.tistory.com/402


.htaccess 사용 못하게 하기
https://sysdocu.tistory.com/413


resin 설치
https://sysdocu.tistory.com/414


리눅스 동영상 스트리밍 모듈 설치 (mod_h264_streaming)
https://sysdocu.tistory.com/423


error 로그에서 favicon.ico 로그 남기지 않기
https://sysdocu.tistory.com/1552


php 확장자 없이 페이지 접속 가능하게 하기
https://sysdocu.tistory.com/1689


쉘에서 php 실행하기
https://sysdocu.tistory.com/156


로그인 세션 유지시간 설정
https://sysdocu.tistory.com/157


php 확장모듈 설치하기
https://sysdocu.tistory.com/160


PHP 소스 암호화
https://sysdocu.tistory.com/179


PHP 가속프로그램 eaccelerator
https://sysdocu.tistory.com/180


php mssql 연동 소스
https://sysdocu.tistory.com/188


PHP - cUrl를 이용해 PUT, POST, GET으로 json을 전달하는 방법
https://sysdocu.tistory.com/1682


PHP 8.0 에서 SCREWIM 을 이용한 소스 암호화
https://sysdocu.tistory.com/1696





MySQL 4.x 버전 이상 old_password 문제
https://sysdocu.tistory.com/212


[oracle] oracle 구동
https://sysdocu.tistory.com/220


MySQL Replication (리플리케이션)
https://sysdocu.tistory.com/221


mysql 바이너리 파일로 DB 복구
https://sysdocu.tistory.com/229


latin1 DB data를 euckr DB 로 넣기 (iconv 이용)
https://sysdocu.tistory.com/230


[제로보드4] mysql 4.0 이하에서 4.1 이상으로 서버이전후 로그인 안될때
https://sysdocu.tistory.com/233


[그누보드] mysql 4.0 이하에서 4.1 이상으로 서버이전후 로그인 안될때
https://sysdocu.tistory.com/234


zmanda를 사용한 쉬운 MySQL 백업과 복구 (증분백업 가능)
https://sysdocu.tistory.com/235


오라클 클라이언트(Oracle Client) 설치
https://sysdocu.tistory.com/238


my.cnf에 wait_timeout설정하는 문제
https://sysdocu.tistory.com/239


libmysqlclient.so.16: cannot open shared object file: No such file or directory
https://sysdocu.tistory.com/240


MYSQL 4.0 -> 5.1 이전시 예약어 오류 해결
https://sysdocu.tistory.com/258


Oracle 자동 백업 스크립트
https://sysdocu.tistory.com/599


MySQL Cluster 구성
https://sysdocu.tistory.com/970


테이블명 변경 (테이블 이름 변경)
https://sysdocu.tistory.com/1257


insert 시 한글 깨짐 문제가 발생할 경우 점검사항
https://sysdocu.tistory.com/1258


MySQL 8.0 SSL 설정하기
https://sysdocu.tistory.com/1693


MySQL 실시간 쿼리 확인
https://sysdocu.tistory.com/1711


xtrabackup 을 이용한 MySQL 8.0.28 Replication 구성하기
https://sysdocu.tistory.com/1724


MySQL 테이블별 용량 및 레코드 수 조회하기
https://sysdocu.tistory.com/1725


Rocky Linux 8.6 에서 MySQL 8.0.30 소스 설치하기 (with InnoDB 이노디비 설정)
https://sysdocu.tistory.com/1727


sysbench 1.0.20 를 이용한 MySQL 성능 (performance) 테스트
https://sysdocu.tistory.com/1729


mariabackup 을 이용한 MariaDB 10.6.9 Replication 구성하기
https://sysdocu.tistory.com/1735


MySQL (MariaDB) 로그들 logrotate 설정하기
https://sysdocu.tistory.com/1738




PostgreSQL 13.7 Replication 설정 (RockyLinux 9.0)
https://sysdocu.tistory.com/1780


vsftp 에서 root 로 접속하기
https://sysdocu.tistory.com/302


vsftp 업로드 용량 제한 해제 방법
https://sysdocu.tistory.com/298


iptables 시작시 ip_conntrack_ftp 모듈 시작
https://sysdocu.tistory.com/304


NFS 설정 방법 (간단) - 구버전
https://sysdocu.tistory.com/305


NFS 설정 방법 (자세히)
https://sysdocu.tistory.com/306





phpmailer 1.0.x 설치
https://sysdocu.tistory.com/429


Mulitple Queues
https://sysdocu.tistory.com/428


sendmail 에서 특정 계정으로 오는 메일을 다른 계정으로 받기
https://sysdocu.tistory.com/433


[QMAIL] queue 에 쌓여있는 메일갯수 확인
https://sysdocu.tistory.com/434


sendmail 큐에 쌓인 메일 강제 발송
https://sysdocu.tistory.com/435


구글메일 사용시 mx레코드 변경
https://sysdocu.tistory.com/436


다람쥐메일(squirrelmail) 첨부파일 용량 늘이기
https://sysdocu.tistory.com/437


qmail 데몬 죽이기
https://sysdocu.tistory.com/438


qmail 송수신 설정
https://sysdocu.tistory.com/439


mail control - /var/qmail/control/
https://sysdocu.tistory.com/440


queue-fix 설치
https://sysdocu.tistory.com/441


스팸 방지 설정
https://sysdocu.tistory.com/442


[qmail] queue 디렉토리 생성 (22번 이후의 디렉토리)
https://sysdocu.tistory.com/443


outlook 에러 - chdir(/home/sysdocu) failed with uid 500: Permission denied
https://sysdocu.tistory.com/444


야후 메일 발송오류시 확인 사항
https://sysdocu.tistory.com/445


센드메일(sendmail)을 이용한 RBL 차단
https://sysdocu.tistory.com/447


qmail 삭제
https://sysdocu.tistory.com/448


qmail 릴레이 설정 (tcp.smtp)
https://sysdocu.tistory.com/450


sendmail 구동 속도가 늦을때
https://sysdocu.tistory.com/451


라운드큐브 첨부파일 용량 늘리기
https://sysdocu.tistory.com/452


Telnet을 이용한 SMTP 테스트 방법
https://sysdocu.tistory.com/453


qmail 기본 도메인 (default domain) 변경
https://sysdocu.tistory.com/454


POP3(neulwon): mbox: Can't create root mail directory /home/neulwon/mail: Permission denied
https://sysdocu.tistory.com/457


Qmail 자동응답 설정 방법 두가지
https://sysdocu.tistory.com/458


vpopmail 의 명령어 실행시 에러
https://sysdocu.tistory.com/459


한메일(hanmail.net) 으로만 메일 발송이 되지 않을때
https://sysdocu.tistory.com/461


qmail 에서 특정 도메인으로의 발송을 제한 하기
https://sysdocu.tistory.com/462


큐에서 특정 도메인의 메일만 삭제하기
https://sysdocu.tistory.com/463


sendmail에서 localhost [127.0.0.1] did not issue MAIL/EXPN/VRFY/ETRN during connection
https://sysdocu.tistory.com/464


qmail 구동 되지 않을때
https://sysdocu.tistory.com/465


[IMAP] Qmail + Vpopmail + Dovecot 연동하기
https://sysdocu.tistory.com/466


[Qmail] telnet localhost 25 접속 실패시 (110 포트 포함)
https://sysdocu.tistory.com/467


authdaemond: vmysql: sql error[3]: MySQL server has gone away
https://sysdocu.tistory.com/468


라운드큐브메일 한글 첨부파일 발송하기
https://sysdocu.tistory.com/469


QmailAdmin 설치
https://sysdocu.tistory.com/470


roundcube 각종 플러그인 설정
https://sysdocu.tistory.com/471


Qmail 서버에서 스팸발송 안되게 하기
https://sysdocu.tistory.com/472


Sorry,_no_mailbox_here_by_that_name._(#5.1.1)
https://sysdocu.tistory.com/474


Roundcubemail 패스워드 플러그인 사용하기
https://sysdocu.tistory.com/476


qmail 587 포트 추가하기
https://sysdocu.tistory.com/477


vqadmin 설치 (vpopmail web interface)
https://sysdocu.tistory.com/478


우분투에 postfix 설치
https://sysdocu.tistory.com/479


postfix queue 삭제
https://sysdocu.tistory.com/480


RoundcubeMail 에서 daum.net 으로 발송은 빠르고 hanmail.net 으로는 느리게 발송 될때
https://sysdocu.tistory.com/482


dovecot 2.x 설정 방법
https://sysdocu.tistory.com/483


CentOS 6.4 에서 Postfix 설치 및 설정
https://sysdocu.tistory.com/484


PHP 메일(mail) 함수를 이용한 첨부파일 전송하기
https://sysdocu.tistory.com/485


리눅스 쉘에서 파일 첨부된 메일 보내기 (mutt 명령어)
https://sysdocu.tistory.com/486


AfterLogic Webmail Lite 설치 (작성중)
https://sysdocu.tistory.com/979


command line 명령어로 메일 보내기 (sendEmail) - 한글 제목 불가
https://sysdocu.tistory.com/1402


command line 명령어로 메일 보내기 (php) ★ - 발신자 닉네임에 한글 사용 불가
https://sysdocu.tistory.com/1478


메일 포워딩 하면서 수신자 이메일 변경하기 (sendmail + incrontab + shell script)
https://sysdocu.tistory.com/1634


쉘스크립트를 이용한 메일 IP 평판 확인하기 (block list 등록 여부)
https://sysdocu.tistory.com/1695


Sendmail dns=5.6.0, stat=Data format error 해결 방법
https://sysdocu.tistory.com/1759


Sendmail 403 4.7.0 TLS handshake failed 해결 방법
https://sysdocu.tistory.com/1760





mrtg 설치 (트래픽 정보)
https://sysdocu.tistory.com/521


CentOS 6 에서 본딩 (bonding) 구성
https://sysdocu.tistory.com/539



CentOS 7 에서 본딩 (bonding) 구성
https://sysdocu.tistory.com/1331


vnstat (트래픽 모니터링 툴)
https://sysdocu.tistory.com/541


vnstat 모니터링 (웹페이지용)
https://sysdocu.tistory.com/542






리눅스 보안 및 관리
https://sysdocu.tistory.com/555


캐슬(CASTLE) - 소스추가형 웹사이트 보안강화 도구
https://sysdocu.tistory.com/582


rkhunter 사용 방법
https://sysdocu.tistory.com/583


서버 취약점 점검 툴 (OpenVAS 20.8.0) 설치하기 - Ubuntu 20.04
https://sysdocu.tistory.com/586


OMP (OpenVAS CLI 명령어) 사용방법
https://sysdocu.tistory.com/587





[OpenVAS] WARNING: Cannot connect to KB at '/tmp/redis.sock': Connection refused'
https://sysdocu.tistory.com/1057


[OpenVAS] CentOS 7 에서 pdf 리포트가 0 byte 로 생성될 경우
https://sysdocu.tistory.com/1058


clamav 안티 바이러스, 악성코드 프로그램 설치 & 우분투 PC 적용
https://sysdocu.tistory.com/1137


패스워드 복잡성 설정
https://sysdocu.tistory.com/1223


CentOS 7, OpenVAS 9 에서 PDF 파일 생성되지 않을때
https://sysdocu.tistory.com/1332


PAM 을 이용하여 sshd, vsftpd 계정별 IP 접근 제어
https://sysdocu.tistory.com/1416


httpd 2.4.41 에 mod_security 2.9.1 + OWASP 설치
https://sysdocu.tistory.com/1454


웹취약점 점검 도구 OWASP ZAP 설치 및 실행방법
https://sysdocu.tistory.com/1482



httpd (apache2) 설정을 이용한 웹취약점 보완
https://sysdocu.tistory.com/1484


Snort - 03. Snort Rule 구조
https://sysdocu.tistory.com/1555


Snort 규칙 (공격 분류, 우선 순위 정보 포함)
https://sysdocu.tistory.com/1556


CentOS 8 Http 2.4 에 mod_security 설치하기 (YUM)
https://sysdocu.tistory.com/1573