编译和升级 NGINX

2017-08-25 评论字数统计: 1.7k(字) 阅读时长: 9(分)

web 服务器是用来干什么的

web 服务器是一种用来提供网页展示的程序，是响应来自 Web 浏览器的请求发送出 Web 页的软件，比如微软的 IIS 、apache httpd 、nginx、tomcat 等都是 web 服务器。

那这么些年，最火的是 nginx。几乎大中型站点都开始拥抱 nginx。本文主要讲解如何从源码编译安装 nginx，这也将是我们后来学习 web 协议的第一课。

安装依赖

yum -y install gcc gcc-c++ pcre-devel openssl-devel zlib-devel

下载

wget -c https://nginx.org/download/nginx-1.12.1.tar.gz

wget -c https://www.openssl.org/source/openssl-1.0.2l.tar.gz

wget -c ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-8.41.tar.gz

wget -c http://zlib.net/zlib-1.2.11.tar.gz

安装 zlib

zlib 是一些和压缩相关的库。比如网页要进行压缩配置 gzip 就需要用到 zlib 库

tar zxvf zlib-1.2.11.tar.gz

cd zlib-1.2.11

./configure

make
make install

安装 pcre

pcre 是一些和正则相关的库，比如 nginx 需要配置 rewrite 规则

tar  zxvf pcre-8.41.tar.gz
cd pcre-8.41
./configure
make && make install

安装 openssl

openssl 是一些和加密相关的库，比如需要配置证书

tar zxvf openssl-1.0.2l.tar.gz

安装 nginx

1.创建组和用户

groupadd www
useradd -s /sbin/nologin -g www www

2.解压编译

tar zxvf nginx-1.12.1.tar.gz
cd nginx-1.12.1
./configure --prefix=/usr/local/nginx --user=www --group=www --with-pcre=/root/pcre-8.41 --with-http_ssl_module --with-zlib=/root/zlib-1.2.11 --with-openssl=/root/openssl-1.0.2l
make && make install

3.查看安装路径下的程序

# cd /usr/local/nginx/sbin/
# ./nginx  -V
nginx version: nginx/1.0.1
built by gcc 4.8.5 20150623 (Red Hat 4.8.5-11) (GCC)
built with OpenSSL 1.0.2l  25 May 2017
TLS SNI support enabled
configure arguments: --prefix=/usr/local/nginx --user=www --group=www --with-pcre=/root/pcre-8.41 --with-http_ssl_module --with-zlib=/root/zlib-1.2.11 --with-openssl=/root/openssl-1.0.2l

启动
```
# cd /usr/local/nginx/sbin/
# ./nginx
```

然后访问

5.关闭

# ps aux | grep  nginx
root     30596  0.0  0.0  18840   824 ?        Ss   11:21   0:00 nginx: master process ./nginx
www      30597  0.0  0.1  19292  1784 ?        S    11:21   0:00 nginx: worker process
root     30607  0.0  0.0 112644   960 pts/0    R+   11:23   0:00 grep --color=auto nginx
# kill -9 30596
# ps aux | grep  nginx
www      30597  0.0  0.1  19292  1784 ?        S    11:21   0:00 nginx: worker process
root     30609  0.0  0.0 112644   956 pts/0    R+   11:24   0:00 grep --color=auto nginx
# kill -9 30597
# ps aux | grep  nginx
root     30611  0.0  0.0 112644   956 pts/0    R+   11:24   0:00 grep --color=auto nginx

但是这样关闭很费劲,我们创建一个脚本来启动停止和重启 nginx

# vim /etc/init.d/nginx

然后加入如下内容

#! /bin/sh
# chkconfig: 2345 55 25
# Description: Startup script for nginx webserver on Debian. Place in /etc/init.d and
# run 'update-rc.d -f nginx defaults', or use the appropriate command on your
# distro. For CentOS/Redhat run: 'chkconfig --add nginx'

### BEGIN INIT INFO
# Provides:          nginx
# Required-Start:    $all
# Required-Stop:     $all
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: starts the nginx web server
# Description:       starts nginx using start-stop-daemon
### END INIT INFO


PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
NAME=nginx
NGINX_BIN=/usr/local/nginx/sbin/$NAME
CONFIGFILE=/usr/local/nginx/conf/$NAME.conf
PIDFILE=/usr/local/nginx/logs/$NAME.pid
if [ -s /bin/ss ]; then
    StatBin=/bin/ss
else
    StatBin=/bin/netstat
fi


case "$1" in
    start)
        echo -n "Starting $NAME... "

        if $StatBin -tnpl | grep -q nginx;then
            echo "$NAME (pid `pidof $NAME`) already running."
            exit 1
        fi

        $NGINX_BIN -c $CONFIGFILE

        if [ "$?" != 0 ] ; then
            echo " failed"
            exit 1
        else
            echo " done"
        fi
        ;;

    stop)
        echo -n "Stoping $NAME... "

        if ! $StatBin -tnpl | grep -q nginx; then
            echo "$NAME is not running."
            exit 1
        fi

        $NGINX_BIN -s stop

        if [ "$?" != 0 ] ; then
            echo " failed. Use force-quit"
            exit 1
        else
            echo " done"
        fi
        ;;

    status)
        if $StatBin -tnpl | grep -q nginx; then
            PID=`pidof nginx`
            echo "$NAME (pid $PID) is running..."
        else
            echo "$NAME is stopped."
            exit 0
        fi
        ;;

    force-quit|kill)
        echo -n "Terminating $NAME... "

        if ! $StatBin -tnpl | grep -q nginx; then
            echo "$NAME is is stopped."
            exit 1
        fi

        kill `pidof $NAME`

        if [ "$?" != 0 ] ; then
            echo " failed"
            exit 1
        else
            echo " done"
        fi
        ;;

    restart)
        $0 stop
        sleep 1
        $0 start
        ;;

    reload)
        echo -n "Reload service $NAME... "

        if $StatBin -tnpl | grep -q nginx; then
            $NGINX_BIN -s reload
            echo " done"
        else
            echo "$NAME is not running, can't reload."
            exit 1
        fi
        ;;

    configtest)
        echo -n "Test $NAME configure files... "

        $NGINX_BIN -t
        ;;

    *)
        echo "Usage: $0 {start|stop|restart|reload|status|configtest|force-quit|kill}"
        exit 1
        ;;

esac

然后赋予其可执行权限

# chmod +x /etc/init.d/nginx

启动 nginx

# chkconfig nginx on
# /etc/init.d/nginx restart
Stoping nginx... nginx is not running.
Starting nginx...  done

升级 nginx 并且隐藏版本号

比如我们要升级 nginx为1.13.1

# wget -c https://nginx.org/download/nginx-1.13.4.tar.gz
# cd nginx-1.13.4

替换src/core/nginx.h如下部分的内容，修改 nginx 为 awne，将版本号改问1.0.0

#define nginx_version      1000000
#define NGINX_VERSION      "1.0.0"
#define NGINX_VER          "awen/" NGINX_VERSION

这个内容通常会在 http 响应头中显示

Server:nginx/1.0.1

替换src/http/ngx_http_header_filter_module.c

static u_char ngx_http_server_string[] = "Server: nginx" CRLF;

这个内容也是在 http 响应头中显示

替换src/http/ngx_http_special_response.c 中的如下内容中的 nginx 为 awen

static u_char ngx_http_error_tail[] =
"<hr><center>awen</center>" CRLF
"</body>" CRLF
"</html>" CRLF
;

这个内容通常是在 body 里面显示

然后我们还用上面的编译参数

# ./configure --prefix=/usr/local/nginx --user=www --group=www --with-pcre=/root/pcre-8.41 --with-http_ssl_module --with-zlib=/root/zlib-1.2.11 --with-openssl=/root/openssl-1.0.2l

之后我们

# make

注意，升级时，此处不需要 make install

然后我们停止 nginx，并且将编译好的文件拷贝/usr/local/nginx/sbin/进行替换

# /etc/init.d/nginx stop
Stoping nginx...  done
# cp ./objs/nginx /usr/local/nginx/sbin/
cp: overwrite ‘/usr/local/nginx/sbin/nginx’? y

然后重启 nginx,访问查看

一键安装脚本

#!/bin/bash
#Auth:awen
#E-mail:hi@awen.me


install_nginx(){
    DIR="/opt/nginx/"
    ZLIB="zlib-1.2.11.tar.gz"
    ZLIB_DIR="zlib-1.2.11"
    PCRE="pcre-8.41.tar.gz"
    PCRE_DIR="pcre-8.41"
    OPENSSL="openssl-1.0.2l.tar.gz"
    OPENSSL_DIR="openssl-1.0.2l"
    NGINX="nginx-1.12.1.tar.gz"
    NGINX_DIR="nginx-1.12.1"

    if [ ! -d "/opt/nginx" ];then
        mkdir -p /opt/nginx
    else
        cd ${DIR}
        rm -rf *
    fi
    yum -y update
    yum -y install gcc gcc-c++ pcre-devel openssl-devel zlib-devel wget
    cd ${DIR}
    #install zlib
    if [ ! -f "$ZLIB" ];then
        wget -c -4 http://zlib.net/${ZLIB} -O ${DIR}${ZLIB}
        tar zxvf ${DIR}${ZLIB}
        cd ${DIR}${ZLIB_DIR}
        ./configure
        make
        make install
    fi
    # install pcre
    cd ${DIR}
    if [ ! -f "$PCRE" ];then
        wget -c -4 https://ftp.pcre.org/pub/pcre/${PCRE} -O ${DIR}${PCRE}
        tar zxvf pcre-8.41.tar.gz
        if [ -d "/pcre-8.41" ];then
            cd pcre-8.41
            ./configure
            make && make install
        fi    
    fi
    # install openssl
    cd ${DIR}
    if [ ! -f "$OPENSSL" ];then
        wget -c -4 https://www.openssl.org/source/${OPENSSL}  -O ${DIR}${OPENSSL}   
        tar zxvf ${OPENSSL}
    fi

    groupadd www
    useradd -s /sbin/nologin -g www www
    cd ${DIR}
    if [ ! -f "$NGINX" ];then
        wget -c -4 https://nginx.org/download/${NGINX} -O ${DIR}${NGINX}

        tar zxvf ${NGINX}
        cd ${NGINX_DIR}
        ./configure --prefix=/usr/local/nginx --user=www --group=www --with-pcre=${DIR}${PCRE_DIR} --with-http_ssl_module --with-zlib=${DIR}${ZLIB_DIR} --with-openssl=${DIR}${OPENSSL_DIR}
        make && make install
     fi   

    wget -c -4 https://file.awen.me/script/nginx.sh
    mv nginx.sh /etc/init.d/nginx
    chmod +x /etc/init.d/nginx
    /etc/init.d/nginx restart
    chkconfig nginx on

}
install_nginx

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