nginx的安装和反向代理配置

源码安装nginx

这里装nginx的三个依赖，分别是pcre、openssl、zlib
其中编译pcre需要:

yum install gcc gcc-c++ pcre-devel

下载源码包

官网下载最新版即可：
http://www.pcre.org/
http://www.openssl.org
http://www.zlib.net/
http://nginx.org

注意：这里pcre只能是是8.0+，pcre2不支持
会报错:

make[2]: *** No rule to make target `libpcre.la'. Stop.

除了pcre我都用的最新稳定版，给个我用的pcre源码包：

ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-8.36.tar.gz

编译

这里不用分别编译安装，直接进入解压的nginx目录下执行
假设文件都放在/home目录

./configure --prefix=/data/nginx 
--with-http_realip_module \
--with-http_sub_module \
--with-http_flv_module \
--with-http_dav_module \
--with-http_gzip_static_module \
--with-http_stub_status_module \
--with-http_addition_module \
--with-pcre=/home/pcre2-10.00 \
--with-openssl=/home/openssl-1.0.2a \
--with-http_ssl_module \
--with-zlib=/home/zlib-1.2.8

注意绿色的三个是指定源码的目录，不是安装目录，因为本方法是联合编译的，不需要提前编译安装pcre,ssl,zlib
然后就是：

make
make install

执行

按照上面的安装方法，nginx装在/data/nginx

./data/nginx/sbin/nginx -c /data/nginx/conf/nginx.conf
#因为它需要指定配置文件才能运行，执行这条配置文件没有返回，建议使用脚本控制

脚本如下

#!/bin/sh
# config: /usr/local/nginx/conf/nginx.conf

nginx_path="/data/nginx"
nginx_pid="/data/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

[ -x $nginx_path/sbin/nginx ] || exit 0

RETVAL=0
prog="nginx"

start() {
# Start daemons.

if [ -e $nginx_pid -a ! -z $nginx_pid ];then
echo "nginx already running...."
exit 1
fi


if [ -e $nginx_path/conf/nginx.conf ];then
  echo -n $"Starting $prog: "
  $nginx_path/sbin/nginx -c $nginx_path/conf/nginx.conf &
  RETVAL=$?
[ $RETVAL -eq 0 ] && {
touch /var/lock/subsys/$prog
success $"$prog"
}
echo
else
RETVAL=1
fi
return $RETVAL
}

# Stop daemons.
stop() {
        echo -n $"Stopping $prog: "
        killproc -d 10 $nigx_path/sbin/nginx
        RETVAL=$?
        echo
        [ $RETVAL = 0 ] && rm -f $nginx_pid /var/lock/subsys/$prog
}

# See how we were called.
case "$1" in
start)
        start
        ;;

stop)
        stop
        ;;

reconfigure)
        stop
        start
        ;;

status)
        status $prog
        RETVAL=$?
        ;;

*)
        echo $"Usage: $0 {start|stop|reconfigure|status}"
        exit 1
esac

exit $RETVAL

如果脚本名字叫nginx.sh
那么可以：

./nginx.sh status|stop|start....

代理的配置

首先在nginx.conf主配置里添加：

include /data/nginx/conf/vhost.d/*.conf;

然后创建vhost.d文件，在里面创建两个配置文件，alfa.conf和bata.conf

/data/nginx/conf/vhost.d/alfa.conf

# 访问test.xxx.com的请求会转发到反向代理服务器的8888端口（公司搞网络的妹子配置转发的），并和alfa.conf的server_name匹配成功，转发到192.168.52.17:80

server {
    listen  8888;
    server_name test.xxx.com;

    location / {
        proxy_pass http://192.168.52.17;
        proxy_set_header Host $host:8888;# 这里的8888要和上面的对应
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }
}

/data/nginx/conf/vhost.d/bata.conf

# bata.conf
# 它则会匹配test1.xxx.com转发到192.168.44.140:80；
server {
    listen  8888;
    server_name test1.xxx.com;

    location / {
        proxy_pass http://192.168.44.140;
        proxy_set_header Host $host:8888;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    }
}