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NGINX configures 404 error page redirection

Jul 25, 2016 am 08:46 AM

What is a 404 page
If there happens to be a problem with the website, or when the user tries to access a page that does not exist, the server will return an error message with code 404, and the corresponding page will be a 404 page . The default content of the 404 page is related to the specific server. If the NGINX server is used in the background, then the content of the 404 page is:
404 Not Found
nginx/0.8.6
Why do you need to customize the 404 page
When you visit the 404 error page above, I think 99% (unsurveyed, estimated data) of users will close the page, and users will be lost quietly. If there is a beautiful page at this time that can guide users to where they want to go, they will definitely be able to retain users. Therefore, every website should customize its own 404 page.
How to customize the 404 page under NGINX
There are already a lot of articles introducing the experience of customizing the 404 page under IIS and APACHE. There are currently relatively few NGINX. It happens that several of my servers are NGINX. In order to solve the problem I have conducted in-depth research on this issue. The research results show that it is feasible to configure a customized 404 page under NGINX, and it is very simple. You only need the following steps:
1.Create your own 404.html page
2.Change nginx.conf in Add the http definition area:
fastcgi_intercept_errors on;
3.Change nginx.conf and add it in the server area:
error_page 404 = /404.html
4.Test the correctness of nginx.conf:
/ opt/nginx/sbin/nginx –t
If correct, the following information should be displayed:
the configuration file /opt/nginx/conf/nginx.conf syntax is ok
configuration file /opt/nginx/conf/nginx.conf test is successful
kill -HUP `cat /opt/nginx/nginx.pid `
Configuration file example:
……
  1. http
  2. {
  3. include mime.types;
  4. default_type application/octet-stream;
  5. charset gb2312;
  6. server_names_hash_bucket_size 128;
  7. client_header_buffer_size 32k;
    large_client_header_buffers 4 32k;

  8. client_max_body_size 8m;

  9. sendfile on;

  10. tcp_nopush on;

  11. keepalive_timeout 60;

  12. tcp_nodelay on;

  13. fastcgi_connect_timeout 300;

  14. fastcgi_send_timeout 300;

  15. fastcgi_read_timeout 300;

  16. fastcgi_buffer_size 6 4k;

  17. fastcgi_buffers 4 64k;

  18. fastcgi_busy_buffers_size 128k;

  19. fastcgi_temp_file_write_size 128k;

  20. fastcgi_intercept_errors on;

  21. gzip on;

  22. gzip_min_length 1k;

  23. gzip_buffers 4 16k;

  24. gzip_http_version 1.0;

  25. gzip_comp_level 2;

  26. gzi p_types text/plain application/x-javascript text/css application/xml;

  27. gzip_vary on;

  28. #limit_zone crawler $binary_remote_addr 10m;
Copy code

#65 configuration information

    Server

  1. {

  2. listen 80;

  3. server_name www.65.la 65.la *.65.la;

  4. index index.html index.htm index.php ;

  5. root /opt/ www/65;

  6. location ~.

  7. Fastcgi_index index. php;

  8. include fcgi.conf;

  9. }

  10. error_page 404 = /404.html;

  11. Copy code

  12. Errors such as
  13. #502 can be configured in the same way.
A error_page 500 502 503 504 = /50x.html;


  1. {
  2. root html;
  3. }
  4. log_format 65 '$ remote_addr - $ remote_user [$ time_loca l] "$ Request" '$' $ Status $ BODY_BYTES_SENT "$ http_referr" '
  5. ' "$ http_user_agent" $ http_x_Forwards_For '; ;

  6. } 代 Copy code
...

Notes:
1. Must add: fastcgi_intercept_errors on; If this option is not set, even if 404.html is created and error_page is configured, it will have no effect. fastcgi_intercept_errors Syntax: fastcgi_intercept_errors on|off Default: fastcgi_intercept_errors off Add location: http, server, location By default, nginx does not support custom 404 error pages. Only when this directive is set to on, nginx supports redirecting 404 errors. What needs to be noted here is that it does not mean that if fastcgi_intercept_errors on is set, nginx will redirect the 404 error. The prerequisite for 404 error redirection to take effect in nginx is to set fastcgi_intercept_errors on, and correctly set the error_page option (including grammar and corresponding 404 page)2. Do not specify the homepage as to save trouble or increase the weight of the homepage. 404 error page, and do not use other methods to jump to the home page.
3. The custom 404 page must be larger than 512 bytes, otherwise the IE default 404 page may appear. For example, assume that 404.html is customized and the size is only 11 bytes (the content is: 404 error). Use the following two non-existent addresses to access:

Ask a question, where is the created 404 page? I haven’t tried it yet
@5169.info
You can place it anywhere, just make sure to change this line of configuration
error_page 404 = /404.html;


@5169.info
You can place it anywhere, just make sure to change this line of configuration
error_page 404 = /404.html;

In other words, each sub-site should copy a 404 file. Can this be done like this
error_page 404 = ../404.html;
Just make one set of 404 and put it under htdocs
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