HTTP協議版本 | 鏈接關係 |
---|---|
HTTP1.0 | TCP不能複用 |
HTTP1.1 | 順序性TCP複用 |
HTTP2.0 | 多路複用TCP複用 |
HTTP請求創建在一次TCP鏈接的基礎上。
一次TCP鏈接至少能夠產生一次HTTP請求,HTTP1.1版本之後,創建一次TCP鏈接能夠發送屢次HTTP請求。
Syntax: limit_conn_zone key zone=name:size; Default: — Context: http Syntax: limit_conn zone number; Default: — Context: http, server, location
http { # ...其它代碼省略... # 開闢一個10m的鏈接空間,命名爲addr limit_conn_zone $binary_remote_addr zone=addr:10m; server { ... location /download/ { # 服務器每次只容許一個IP地址鏈接 limit_conn addr 1; } } }
Syntax: limit_req_zone key zone=name:size rate=rate; Default: — Context: http Syntax: limit_req zone=name [burst=number] [nodelay]; Default: — Context: http, server, location
http { # ...其它代碼省略... # 開闢一個10m的請求空間,命名爲one。同一個IP發送的請求,平均每秒只處理一次 limit_req_zone $binary_remote_addr zone=one:10m rate=1r/s; server { ... location /search/ { limit_req zone=one; # 當客戶端請求超過指定次數,最多寬限5次請求,並延遲處理,1秒1個請求 # limit_req zone=one burst=5; # 當客戶端請求超過指定次數,最多寬限5次請求,並當即處理。 # limit_req zone=one burst=5 nodelay; } } }
Syntax: allow address | CIDR | unix: | all; Default: — Context: http, server, location, limit_except Syntax: deny address | CIDR | unix: | all; Default: — Context: http, server, location, limit_except
address
:IP地址,例如:192.168.1.1
CIDR
:例如:192.168.1.0/24;
unix
:Socket方式
all
:全部
server { # ...其它代碼省略... location ~ ^/index_1.html { root /usr/share/nginx/html; deny 151.19.57.60; # 拒絕這個IP訪問 allow all; # 容許其餘全部IP訪問 } location ~ ^/index_2.html { root /usr/share/nginx/html; allow 151.19.57.0/24; # 容許IP 151.19.57.* 訪問 deny all; # 拒絕其餘全部IP訪問 } }
http_x_forwarded_for = Client IP, Proxy1 IP, Proxy2 IP, ...html
remote_addr
獲取的是直接和服務端創建鏈接的客戶端IP。http_x_forwarded_for
能夠記錄客戶端及全部中間代理的IPnode
Syntax: auth_basic string | off; Default: auth_basic off; Context: http, server, location, limit_except Syntax: auth_basic_user_file file; Default: — Context: http, server, location, limit_except
[root~]# yum -y install httpd-tools
[root/etc/nginx]# htpasswd -c ./auth_conf auth_root New password: Re-type new password: Adding password for user auth_root [root/etc/nginx]# ll auth_conf -rw-r--r-- 1 root root 48 7月 9 11:38 auth_conf [root/etc/nginx]# cat auth_conf auth_root:$apr1$2v6gftlm$oo2LE8glGQWi68MCqtcN90
server { # ...其它代碼省略... location ~ ^/index.html { root /usr/share/nginx/html; auth_basic "Auth access! Input your password!"; auth_basic_user_file /etc/nginx/auth_conf; } }
nginx -s reload
http://192.168.33.88/index.html
輸入正確的用戶名和密碼,便可正常訪問。nginx