最近公司搭建一个新的业务平台，由于公网的IP地址和硬负载设备的配置问题，需要使用其它的办法做域名转换，于是使用nginx做的域名转换。
安装nginx
1.安装gcc
yum -y install gcc automake autoconf libtool make
yum install gcc gcc-c++
2.安装pcre
cd /usr/local/src
wget ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-8.34.tar.gz
tar -zxvf pcre-8.34.tar.gz
cd pcre-8.34
./configure
make
make install
3.安装zlib库
http://zlib.net/zlib-1.2.8.tar.gz 下载最新的 zlib 源码包，使用下面命令下载编译和安装 zlib包：
cd /usr/local/src
wget http://zlib.net/zlib-1.2.8.tar.gz
tar -zxvf zlib-1.2.8.tar.gz
cd zlib-1.2.8
./configure
make
make install
4.安装nginx
wget http://nginx.org/download/nginx-1.5.4.tar.gz
wget http://nginx.org/download/nginx-1.4.2.tar.gz
Nginx 一般有两个版本，分别是稳定版和开发版，您可以根据您的目的来选择这两个版本的其中一个，下面是把 Nginx 安装到 /usr/local/nginx 目录下的详细步骤：
cd /usr/local/src
wget http://nginx.org/download/nginx-1.4.2.tar.gz
tar -zxvf nginx-1.4.2.tar.gz
cd nginx-1.4.2
./configure --prefix=/usr/local/nginx --without-http_memcached_module --with-http_stub_status_module --with-openssl=/usr/ --with-pcre=/usr/local/src/pcre-8.34
或是
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
./configure --sbin-path=/usr/local/nginx/nginx \
--conf-path=/usr/local/nginx/nginx.conf \
--pid-path=/usr/local/nginx/nginx.pid \
--with-http_ssl_module \
--with-pcre=/usr/local/src/pcre-8.34 \
--with-zlib=/usr/local/src/zlib-1.2.8 \
--with-openssl=/usr/local/src/openssl-1.0.1c
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
make
make install--with-pcre=/usr/src/pcre-8.34 指的是pcre-8.34 的源码路径。
--with-zlib=/usr/src/zlib-1.2.7 指的是zlib-1.2.7 的源码路径。
#/usr/local/nginx/sbin/nginx #启动nginx
#netstat -ano|grep 80 查看端口
设置nginx开启启动
vi /etc/rc.d/init.d/nginx #编辑启动文件添加下面内容
=======================================================
#!/bin/sh
#
# nginx - this script starts and stops the nginx daemon
# chkconfig: - 85 15
# description: Nginx is an HTTP(S) server, HTTP(S) reverse \
# proxy and IMAP/POP3 proxy server
# processname: nginx
# config: /etc/nginx/nginx.conf
# config: /usr/local/nginx/conf/nginx.conf
# pidfile: /usr/local/nginx/logs/nginx.pid
# Source function library.
. /etc/rc.d/init.d/functions
# Source networking configuration.
. /etc/sysconfig/network
# Check that networking is up.
[ "$NETWORKING" = "no" ] && exit 0
nginx="/usr/local/nginx/sbin/nginx"
prog=$(basename $nginx)
NGINX_CONF_FILE="/usr/local/nginx/conf/nginx.conf"
[ -f /etc/sysconfig/nginx ] && . /etc/sysconfig/nginx
lockfile=/var/lock/subsys/nginx
make_dirs() {
# make required directories
user=`$nginx -V 2>&1 | grep "configure arguments:" | sed 's/[^*]*--user=\([^ ]*\).*/\1/g' -`
if [ -z "`grep $user /etc/passwd`" ]; then
useradd -M -s /bin/nologin $user
fi
options=`$nginx -V 2>&1 | grep 'configure arguments:'`
for opt in $options; do
if [ `echo $opt | grep '.*-temp-path'` ]; then
value=`echo $opt | cut -d "=" -f 2`
if [ ! -d "$value" ]; then
# echo "creating" $value
mkdir -p $value && chown -R $user $value
fi
fi
done
}
start() {
[ -x $nginx ] || exit 5
[ -f $NGINX_CONF_FILE ] || exit 6
make_dirs
echo -n $"Starting $prog: "
daemon $nginx -c $NGINX_CONF_FILE
retval=$?
echo
[ $retval -eq 0 ] && touch $lockfile
return $retval
}
stop() {
echo -n $"Stopping $prog: "
killproc $prog -QUIT
retval=$?
echo
[ $retval -eq 0 ] && rm -f $lockfile
return $retval
}
restart() {
#configtest || return $?
stop
sleep 1
start
}
reload() {
#configtest || return $?
echo -n $"Reloading $prog: "
killproc $nginx -HUP
RETVAL=$?
echo
}
force_reload() {
restart
}
configtest() {
$nginx -t -c $NGINX_CONF_FILE
}
rh_status() {
status $prog
}
rh_status_q() {
rh_status >/dev/null 2>&1
}
case "$1" in
start)
rh_status_q && exit 0
$1
;;
stop)
rh_status_q || exit 0
$1
;;
restart|configtest)
$1
;;
reload)
rh_status_q || exit 7
$1
;;
force-reload)
force_reload
;;
status)
rh_status
;;
condrestart|try-restart)
rh_status_q || exit 0
;;
*)
echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart|reload|force-reload|configtest}"
exit 2
esac
=======================================================
:wq! #保存退出
chmod 775 /etc/rc.d/init.d/nginx #赋予文件执行权限
chkconfig nginx on #设置开机启动
/etc/rc.d/init.d/nginx restart
service nginx restart
=======================================================
6.配置文件做域名转发
# Vim /usr/local/nginx/conf/nginx.conf
在行 #gzip on; 下加入域名转换配置
#web_server是一个服务，指向xx.xx.xx.xx.的8116端口
upstream web_server {
#ip_hash;
server xx.xx.xx.xx:8116 max_fails=2 fail_timeout=30s;
#server x.x.x.x:8080 max_fails=2 fail_timeout=30s;
}
server {
listen 80;
server_name abc.xxcom; #不同的域名配置
location / {
root html;
index index.html index.htm;
proxy_next_upstream
http_502 http_504 error timeout invalid_header;
proxy_pass http://web_server; #这里要配置成upstream的"web_server"
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
break;
}
}
#web_server1是一个服务，指向xx.xx.xx.xx的8124端口
upstream web_server1 {
#ip_hash;
server xx.xx.xx.xx:8124 max_fails=2 fail_timeout=30s;
}
server {
listen 80;
server_name xx.xx.com; #转换的域名
location / {
root html;
index index.html index.htm;
proxy_next_upstream
http_502 http_504 error timeout invalid_header;
proxy_pass http://web_server1;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
break;
}
}
配置完成。