• nginx Configuration
• nginx HttpCoreModule
• nginx location 설정

• HttpCoreModule#error_page

• error_page   404          /404.html;
  error_page   502 503 504  /50x.html;
  error_page   403          http://example.com/forbidden.html;
  error_page   404          = @fetch;
  
  # 응답코드 바꿔치기
  error_page 404 =200 /empty.gif;
  error_page 404 =403 /forbidden.gif;

• nginx HttpHeadersModule 헤더 설정을 통한 제어(expire 캐시등)
• expires epoch; : 캐시 끄기
• expires max; 31 December 2037 23:59:59 GMT, Cache-Control max-age to 10 years.

  expires       24h;
  expires       modified +24h;
  expires       @15h30m;
  expires       0;
  expires       -1;
  expires       epoch;
  add_header    Cache-Control  private;