Nginx ("engine x") 是一個高性能的 HTTP 和 反向代理 伺服器,也是一個 IMAP/POP3/SMTP代理伺服器。已經因為它的穩定性、豐富的功能集、示例配置檔案和低系統資源的消耗而被人們廣泛使用了。
大多數人選擇它主要考慮到的是它的高并發和負載均衡。
一、安裝Nginx
1. tar zxvf nginx-0.7.44.tar.gz
2、編譯安裝nginx
cd nginx-0.7.44
./configure --with-http_stub_status_module --with-http_ssl_module --prefix=/usr/local/nginx
執行後,可能會提示 ./configure: error: the HTTP rewrite module requires the PCRE library.這個錯誤,是缺少pcre 包,可用yum install pcre pcre-devlel來解決
3、make && make install
4、nginx安裝成功後的安裝目錄為/usr/local/nginx
5.編輯配置檔案nginx.conf
#user www www;
worker_processes 8; #啟動程序數,可根據機器核數來修改
error_log /usr/local/nginx/logs/nginx_error.log crit; #全局錯誤日志及PID檔案
pid /usr/local/nginx/nginx.pid;
worker_rlimit_nofile 65535;
events
{
use epoll;
worker_connections 65535; #工作模式及連接配接數上限
}
http #設定http伺服器,利用它的反向代理功能提供負載均衡支援
include mime.types;
default_type application/octet-stream;
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
access_log logs/access.log main; #定義的日志格式和存放路徑
#General Options
server_names_hash_bucket_size 128;
client_header_buffer_size 32k;
large_client_header_buffers 4 32k;
client_body_buffer_size 8m; #256k
server_tokens off;
ignore_invalid_headers on;
recursive_error_pages on;
server_name_in_redirect off;
sendfile on;
#timeouts
keepalive_timeout 60;
#client_body_timeout 3m;
#client_header_timeout 3m;
#send_timeout 3m;
#TCP Options
tcp_nopush on;
tcp_nodelay on;
#size limits
client_max_body_size 50m;
gzip on;
gzip_min_length 1k;
gzip_buffers 4 16k;
gzip_http_version 1.0;
gzip_comp_level 2;
gzip_types text/plain application/x-javascript text/css application/xml;
gzip_vary on;
upstream xxx.com {
ip_hash;
server x.x.x.x:8080 max_fails=0 weight=1;
server x.x.x.x:8080 max_fails=0 weight=1; #8080為tomcat端口
}
server {
listen 80 default;
rewrite ^(.*) http://www.xxx.com/ permanent;
#charset koi8-r;
#access_log logs/host.access.log main;
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}
server
{
listen 80;
server_name www.xxx.com;
index index.php index.html index.htm;
root /http;
access_log /data/logs/access.xxx.com.log combined;
error_log /data/logs/error_test.xxx.log;
#expires
location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$
{
expires 30d;
}
location ~ .*\.(js|css)?$
expires 24h;
}
location /nginxstatus {
stub_status on;
access_log off;
}
# location ~ .*\.jsp?$
location /
{
proxy_pass http://xxx.com;
proxy_redirect off;
# proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Host $http_host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Connection Close;
proxy_set_header X-Forwarded-For $remote_addr;
error_page 404 /404.html;
error_page 500 502 503 504 /50x.html;
# location = /50x.html {
# root html;
# }
}
}
6、修改/usr/local/nginx/conf/nginx.conf配置檔案後,用指令/usr/local/nginx/sbin/nginx -t 檢查配置檔案是否正确:
7、啟動nginx的指令
/usr/local/nginx/sbin/nginx