400 bad request nginx

After buying a cloud server, the system automatically installs the Nginx 1.6 + PHP 5.3.28 + mysql 5.5 After the PHP program into the cloud server, the first test program access to normal, normal speed But put the program on the line after the visit, will gradually find that access to the PHP page more and more slowly, and finally directly appear 502 bad gateway problem. (In Php-fpm.conf, the original s

the moment and returns Ngx_again, 2 things will be done before returning: 1, Set a timer, Shichangme think 60s, can be set by the instruction Client_header_timeout, if the timing event arrives without any readable event, Nginx will close this request; 2, call Ngx_handle_read_ The event function handles the Read event-if the connection has not yet mounted a read event on the event-handling model, it is moun

additional configurations: Client_header_buffer_size syntax: client_header_buffer_size size default: 1k Use field: HTTP, Server This directive specifies the size of the HTTP header buffer requested by the client in most cases the size of a header request will not be greater than 1k However, if there is a larger cookie from the WAP client it may be greater than 1k,nginx will be allocated to it a larger buff

size of a buffer, and a 400 error will be returned if a request header size is larger than a buffer size. After understanding the values of these parameters, and the actual practice of Nginx, in the application scenario, we need to adjust these parameters according to the actual requirements to optimize our program. Process Flowchart: These are the lifetime of a

request row is larger than the buffer size, error 414 will be returned. if the size of a request header is greater than the buffer size, error 400 will be returned. After understanding the values of these parameters and the actual nginx practices, in the application scenario, we need to adjust these parameters accordi

, Ngx_http_header_filter, this filter will traverse all the response headers, eventually requiring the output of the response head in a contiguous memory, and then call the Ngx_http_write_ Filter for output. Ngx_http_write_filter is the last in the body filter, so nginx first body information, after a series of body filter, finally will also call Ngx_http_write_filter to output ( There are diagrams to illustrate). Note here,

A team retreat to develop an independent CS framework project, painstakingly came out the first version, the test passed, the online single server gray test through, very happy,So go process official release, according to the general project deployment of distributed multiple servers, the result of the problem, many visits almost all reported 400 errors ...The whole team, the weekend, the final positioning to the following features:-Get/post/put

See huoding.com on the better posts, so understand and use their own words to describeIncrease client_header_buffer_size and large_client_header_buffers can solve the problem, but for Mao to two parameters to control it? Can one meet the requirements soon?The client_header_buffer_size is used to cache the request header and returns a 400 error if it is exceeded. However, if the majority of requests do not e

404 Page Base Configurationthe 404 error is an error that is easy to access on the WWW site. The most common error tip: 404 Not FOUND. 404 error page settings for Web site SEO has a great impact, but not set up, such as direct jump home, etc., will be the search engine down the right to pull hair. The purpose of the 404 page should be to tell the user that the page you are requesting does not exist, and to guide the user through other pages of the site instead of turning off the window. Search e

1.1.1 Install Nginx and PHP through Yum, change the address of nginx inside Fastcgi_pass PHP can not request the normal1.1.1.1 problem Restore:The nginx+php server address is 10.0.0.41/24Nginx installation is 1.14 PHP installation is 7.1,yum installation process is not detailednginx的location里面的配置如下location ~ \.php$ {

Compared with the Apache,nginx occupies less system resources, more suitable for VPS use. Malicious hotlinking user Agent everywhere, blog replacement to WordPress not a few days, was SPAM (spam message) stare, and was violently cracked backstage username password. Apache has previously introduced the use of the. htaccess Mask malicious user agent, today to introduce Nginx shielding malicious user agent