反向代理服务器安装和配置.doc

开发环境代理服务器安装和配置
1环境安装
1.1条件
1． 操作系统:centos 5.4 64位(或者更高的版本)。
2． ssh连接工具:putty。
3． 文件传输工具：winscp
1.2服务器软件
1.nginx 1.4.1
1.3安装步骤
1)把nginx安装包 nginx-1.4.1.tar.gz、pcre-8.32.tar.gz上传到指定的安装目录，并同时对两个文件进行解压
2）安装脚本
yum -y install gcc gcc-c++ openssl openssl-devel
cd nginx-1.4.1
./configure --prefix=/usr/local/nginx --sbin-path=/usr/local/nginx/sbin/nginx --conf-path=/usr/local/nginx/conf/nginx.conf --error-log-path=/usr/local/nginx/log/error.log --http-log-path=/usr/local/nginx/log/access.log --pid-path=/usr/local/nginx/run/nginx.pid --user=www --group=www --with-http_ssl_module --with-http_flv_module --with-http_stub_status_module --with-http_gzip_static_module --http-client-body-temp-path=/usr/local/nginx/tmp/client --http-proxy-temp-path=/usr/local/nginx/tmp/proxy/ --http-fastcgi-temp-path=/usr/local/nginx/tmp/fcgi/ --add-module=./ngx_cache_purge-2.1 --with-pcre=../ pcre-8.32
make
make install
/usr/local/nginx/sbin/nginx
1.4注意事项
1. 安装的服务器必须是可以出公网,否则依赖包无法安装
2. 安装完后加入开机启动
3. 启动命令: /usr/local/nginx/sbin/nginx
4. 重启命令: killall -9 nginx && /usr/local/nginx/sbin/nginx
2环境配置
2.1配置步骤
1.把”代理服务器配置”文件夹下面的conf上传到代理服务器/usr/local/nginx 覆盖conf文件夹
2.重启nginx
2.2一般配置解释
配置文件/usr/local/nginx/conf/nginx.conf
user www www;
worker_processes 8;
error_log /usr/local/nginx/logs/nginx_error.log crit;
pid /usr/local/nginx/nginx.pid;
#Specifies the value for maximum file descriptors that can be opened by this process.
worker_rlimit_nofile 65535;
events
{
use epoll;
worker_connections 65535;
}
http
{
include mime.types;
default_type application/octet-stream;
charset utf-8;
server_names_hash_bucket_size 128;
client_header_buffer_size 32k;
large_client_header_buffers 4 32k;
client_max_body_size 300m;

sendfile on;
tcp_nopush on;

keepalive_timeout 60;

tcp_nodelay on;

client_body_buffer_size 512k;
proxy_connect_timeout 5;
proxy_read_timeout 60;
proxy_send_timeout 5;
proxy_buffer_size 16k;
proxy_buffers 4 64k;
proxy_busy_buffers_size 128k;
proxy_temp_file_write_size 128k;

gzip on;
gzip_min_length 1k;
gzip_buffers 4 16k;
gzip_http_version 1.1;
gzip_comp_level 2;
gzip_types text/plain application/x-javascript text/css application/xml;
gzip_vary on;

#注：proxy_temp_path和proxy_cache_path指定的路径必须在同一分区
proxy_temp_path /htdocs/proxy_temp_dir;

proxy_cache_path /htdocs/proxy_cache_dir levels=1:2 keys_zone=cache_one:2000m inactive=1d max_size=30g;

upstream backend_server {
#这里填写要代理的IP,每个域名单独编写一个upstream,如果后端有多台多负载均衡,可以配置多个IP
server 192.168.1.43:80 weight=1 max_fails=2 fail_timeout=30s;
}

upstream rb_backend_server {
#这里填写要代理的IP,每个域名单独编写一个upstream,如果后端有多台多负载均衡,可以配置多个IP
server 192.168.1.10:80 weight=1 max_fails=2 fail_timeout=30s;
}

upstream portaltest_backend_server {
#这里填写要代理的IP,每个域名单独编写一个upstream,如果后端有多台多负载均衡,可以配置多个IP
server 192.168.1.46:80 weight=1 max_fails=2 failtimeout=30s;
server 192.168.1.52:80 weight=1 max_fails=2 fail_timeout=30s;
}

#////

server
{
listen 80;
server_name localhost;
index index.html index.htm;
return 403;
access_log off;
}

Server
{
listen 80;
server_name ;
index index.html index.htm;

location /
{
proxy_next_upstream http_502 http_504 error timeout invalid_header;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $remote_addr;
proxy_pass http://backend_server;
expires 1d;
}
access_log off;
}
}
配置中(重要的都进行了注释)
upstream backend_server {
#这里填写要代理的IP,每个域名单独编写一个upstream,如果后端有多台多负载均衡,可以配置多个IP
server 192.168.1.43:80 weight=1 max_fails=2 fail_timeout=30s;
}

server #一个server 表示一个域名的完整配置,每个域名最好应该单独配置一个server
{
listen 80; #
server_name ; #要配置的域名
index index.html index.htm; #默认页面

location /
{
proxy_next_upstream http_502 http_504 error timeout invalid_header;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $remote_addr;
proxy_pass http://backend_server; #upstream的名字
expires 1d;
}
access_log off;
}

2.3注意事项
1.每次重新配置或者修改配置的时候请重启nginx,否则配置无法生效.