Nginx Rewrite implementation of two-level domain name, three-level domain name, generic domain name, path rewrite

Most common: Static addresses are redirected to dynamic addresses with parameters

Rewrite "^ (. *)/service/(. *) \.html$" $1/service.php?sid=$2 permanent;

In turn: Dynamic addresses with parameters redirected to static addresses

if ($query _string ~* id= (. *)) {
Set $id $;
Rewrite "^ (. *)/article.asp$" $1/article/$id. htm last;
}


Pan Domain Name Resolution

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server_name www.w3cgroup.com *.w3cgroup.com;
Server_name_in_redirect off;
#设置默认root
Set $rootdir/usr/local/nginx/html/w3cgroup/;

#匹配三级或三级以上的域名

if ($host ~* ^ (. +) \. ( [^\.] +)\. ([^\.] +)\. ([^\.] +)$)  {

}
#匹配三级域名
if ($host ~* ^ ([^\.] +)\. ([^\.] +)\. ([^\.] +)\. ([^\.] +)$) {
#三级域名中有访问指定的目录则重定向到相应的二级域名下
Rewrite "^.+upload/? (. *) $ "http://upload.w3cgroup.com/$1 permanent;
Rewrite "^.+ijc/? (. *) $ "http://ijc.w3cgroup.com/$1 permanent;
Break
}
#匹配二级域名
if ($host ~* ^ ([^\.] +)\. ([^\.] +)\. ([^\.] +)$) {
Set $rs 1 $;
}
#设置www时root
if ($rs 1 ~* ^www$) {
Set $rootdir/usr/local/nginx/html/platform_ig/;
#二级域名中有访问指定的目录则重定向到相应的二级域名下, notice that you use the last
Rewrite "^.+upload/? (. *) $ "upload/$1 last;
Rewrite "^.+ijc/? (. *) $ "ijc/$1 last;
Break
}
#设置非www二级域名时root
if ($rs 1!~* ^www$) {
Set $rootdir/usr/local/nginx/html/w3cgroup/$rs 1;
#二级域名中有访问指定的目录则重定向到相应的二级域名下
Rewrite "^.+upload/? (. *) $ "http://upload.w3cgroup.com/$1 permanent;
Rewrite "^.+ijc/? (. *) $ "http://ijc.w3cgroup.com/$1 permanent;
Break
}
#应用root
Root $rootdir;
Index index.php index.html;
Error_page 404 http:/$host/;

Note: A space is required between if () {}, otherwise nginx.conf will report unknow directive Error!

Reference:

Nginx Rewrite Flags
* Last equivalent to the [L] mark in Apache, indicating completion of rewrite
* Break terminates the match and no longer matches the following rule
* REDIRECT Return 302 temporary redirect
* Permanent return 301 Permanent redirect

Nginx Regular expression matching
* ~ For case-sensitive matching
* ~* for case-insensitive matching
*!~ and!~* are case insensitive and case insensitive

Nginx File and directory matching
*-F and!-f to determine if a file exists
*-D and!-d to determine if a directory exists
*-E and!-e to determine if a file or directory exists
*-X and!-x to determine if the file is executable

Nginx Global Variables
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$args
$content _length
$content _type
$document _root
$document _uri
$host
$http _user_agent
$http _cookie
$limit _rate
$request _body_file
$request _method
$remote _addr
$remote _port
$remote _user
$request _filename
$request _uri
$query _string
$scheme
$server _protocol
$server _addr
$server _name
$server _port
$uri

Nginx Rewrite implementation of two-level domain name, three-level domain name, generic domain name, path rewrite