1.17-1.18 rewrite實戰
https://coding.net/u/aminglinux/p/nginx/git/blob/master/rewrite/example.md
域名重定向
場景1
不帶條件的場景
效果：訪問2.com 跳轉到1.com
vim 2.com.conf
server {
listen 80;
server_name 2.com;
root /data/t-nginx/2.com;
rewrite /(.*) http://1.com/$1 permanent;
}# curl -x127.0.0.1:80 2.com/1.php -I HTTP/1.1 301 Moved Permanently Server: nginx/1.8.0 Date: Wed, 24 Oct 2018 07:14:10 GMT Content-Type: text/html Content-Length: 184 Connection: keep-alive Location: http://1.com/1.php
帶條件的場景
場景2
效果：當訪問不是2.com的時候，跳轉到www.2.com
vim 2.com.conf
server {
listen 80;
server_name 2.com www.2.com;
root /data/t-nginx/2.com;
if ( $host != 'www.2.com' )
{
rewrite /(.*) http://www.2.com/$1 permanent;
}
}
# curl -x127.0.0.1:80 2.com/1.php -I
HTTP/1.1 301 Moved Permanently
Server: nginx/1.8.0
Date: Wed, 24 Oct 2018 07:27:42 GMT
Content-Type: text/html
Content-Length: 184
Connection: keep-alive
Location: http://www.2.com/1.php示例3（http跳轉到https）：
server {
listen 80;
server_name 2.com www.2.com;
root /data/t-nginx/2.com;
rewrite /(.*) https://2.com/$1 permanent;
}
# !curl
curl -x127.0.0.1:80 2.com/1.php -I
HTTP/1.1 301 Moved Permanently
Server: nginx/1.8.0
Date: Wed, 24 Oct 2018 07:58:59 GMT
Content-Type: text/html
Content-Length: 184
Connection: keep-alive
Location: https://2.com/1.php示例4（域名訪問二級目錄）
示例5（靜態請求分離）
效果：當訪問圖片文件，流向媒體文件的時候，跳轉到特定的域名
server {
listen 80;
server_name 2.com www.2.com;
root /data/t-nginx/2.com;
if ( $uri ~* 'jpg|png|gif|js$' )
{
rewrite /(.*) https://img.2.com/$1 permanent;
}
}
# curl -x127.0.0.1:80 2.com/1.png -I
HTTP/1.1 301 Moved Permanently
Server: nginx/1.8.0
Date: Wed, 24 Oct 2018 08:28:18 GMT
Content-Type: text/html
Content-Length: 184
Connection: keep-alive
Location: https://img.2.com/1.png6 防盜鏈
2.com.conf配置：
server {
listen 80;
server_name www.2.com;
root /data/t-nginx/2.com;
location ~* ^.+.(jpg|png|gif|js|mp3|mp4)$
{
valid_referers none blocked server_names *.2.com 2.com;
if ($invalid_referer)
{
return 403;
}
}
}curl 測試
# curl -x127.0.0.1:80 -e "http://linux.com" 'www.2.com/1.gif' -I HTTP/1.1 403 Forbidden Server: nginx/1.8.0 Date: Wed, 24 Oct 2018 09:10:37 GMT Content-Type: text/html Content-Length: 168 Connection: keep-alive 當用refers-->http://linux.com訪問www.2.com/1.gif的時候，linux.com不屬於白名單，所以會反饋return 403代碼。
rewrite多個條件的並且
示例8：
location /{
set $rule 0;
if ($document_uri !~ '^/abc')
{
set $rule "${rule}1";
}
if ($http_user_agent ~* 'ie6|firefox')
{
set $rule "${rule}2";
}
if ($rule = "012")
{
rewrite /(.*) /abc/$1 redirect;
}
}解釋：
set $rule 0 變量$rule的值爲0，第一個條件
set $rule "${rule}1" 變量$rule的值爲1，第二個條件
set $rule "${rule}2" 變量$rule的值爲2，第三個條
if ($rule = "012") 當$rule滿足0 1 2，也就是滿足第一，二，三個條件的時候，會執行xxx。。。