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Log rotate - rotates, compresses, and mails system logs

  • sudo vim /etc/logrotate.d/nginx에서 nginx log를 logroate로 관리
  • logrotate -d -f /etc/logrotate.d/nginx로 테스트 가능 (-d는 dryrun, -f는 size나 daily 같은 조건 관계 없이 force logrotate)

crontab

  • grep CRON /var/log/syslog로 cronjob log 확인
  • crontab -e 기본 에디터를 vim으로 바꾸고 싶다면 export EDITOR=/usr/bin/vim

linux

  • uname -a: 리눅스 버전 확인
  • find . -name "*.pdf" -delete: rm -rf abr* 했는데 'Argument list too long' 에러날 때

Nginx

  • The sites-available folder is for storing all of your vhost configurations, whether or not they're currently enabled.
  • The sites-enabled folder contains symlinks to files in the sites-available folder. This allows you to selectively disable vhosts by removing the symlink.
  • /etc/nginx/nginx.conf
  • sudo ln -s /etc/nginx/sites-available/test.conf /etc/nginx/sites-enabled/ to create symlink
  • nginx -t to check configuration file syntax is ok
  • nginx -s [stop | quit | reload | reopen]
    • stop — fast shutdown
    • quit — graceful shutdown
    • reload — reloading the configuration file
    • reopen — reopening the log files

curl

  • curl -I superset.cc to check header
HTTP/1.1 200 OK
Server: nginx/1.10.3 (Ubuntu)
Date: Sun, 04 Nov 2018 13:35:17 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 16395
Connection: keep-alive
X-Powered-By: Express
Cache-Control: public, max-age=0
ETag: W/"400b-Y+vdSsJ5yEFmmQK+vjBSA6htAxA"
Vary: Accept-Encoding

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DevOps Workspace