在Centos7上将Apache(httpd)切换为Nginx的

原文转载自「刘悦的技术博客」https://v3u.cn/a_id_129

近期要上线几个基于tornado+motor的移动端接口服务，众所周知，Apache和tornado天生八字不合，尤其apache对python3尤为的不友好，tornado和nginx才是木石前盟，另外由于apache目前系统占用确实比较高，不光进程数多，httpd竟然占用了200多M，太庞大，决定换为较轻量级，高并发的nginx。

image

如上图所示：系统也就2g ,除了mysql占用的100M, httpd 占了1/2 还多

首先由于apache和nginx默认都是监听80端口，所以首先要停止apache服务（为了保险起见，只是停止服务，不要卸载）

systemctl  stop httpd

第二步，安装nginx

#设置源
sudo rpm -Uvh http://nginx.org/packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpm

#安装
yum install -y nginx

#启动服务
systemctl start nginx.service

#开机自启
systemctl enable nginx.service

由于机器上还有一些php服务，而nginx需要php-fpm的支持才能代理php，所以安装php-fpm

yum install php-fpm

yum install php-mysql php-gd libjpeg\* php-imap php-ldap php-odbc php-pear php-xml php-xmlrpc php-mbstring php-mcrypt php-bcmath php-mhash libmcrypt

开启php服务
systemctl start php-fpm

开机启动php服务
systemctl enable php-fpm

然后将原来apache的服务配置翻译成nginx的，二者大同小异，值得一提的是，关于https服务，nginx配置要简单很多

apache配置：

<VirtualHost \_default\_:443>

#   General setup for the virtual host
DocumentRoot "/opt/v3u"
ServerName v3u.cn:443
ServerAdmin you@example.com
ErrorLog "/opt/lampp/logs/error\_log"
TransferLog "/opt/lampp/logs/access\_log"

#   SSL Engine Switch:
#   Enable/Disable SSL for this virtual host.
SSLEngine on


SSLCertificateFile "证书目录"
SSLCertificateKeyFile "证书目录"
SSLCertificateChainFile "证书目录"


<FilesMatch ".(cgi|shtml|phtml|php)$">
    SSLOptions +StdEnvVars
</FilesMatch>
<Directory "/opt/lampp/cgi-bin">
    SSLOptions +StdEnvVars
</Directory>


BrowserMatch "MSIE \[2-5\]" 
         nokeepalive ssl-unclean-shutdown 
         downgrade-1.0 force-response-1.0

CustomLog "/opt/lampp/logs/ssl\_request\_log" 
          "%t %h %{SSL\_PROTOCOL}x %{SSL\_CIPHER}x "%r" %b"

</VirtualHost> 

翻译为ngixn的配置:

server {
        listen 443 ssl;
        server\_name v3u.cn;
        root /opt/v3u;
location / {
            index  index.html index.htm index.php;
        rewrite ^/sitemap.xml$ /Index\_sitemap last;
    rewrite ^/resume$ /Index\_resume last;
    rewrite ^/search\_(.+?)$ /Index\_search\_text\_$1 last;
    rewrite ^/a\_id\_(.+?)$ /Index\_a\_id\_$1 last;
    rewrite ^/ls\_id\_(.+?)$ /Index\_ls\_id\_$1 last;
    rewrite ^/l\_id\_(.+?)$ /Index\_l\_id\_$1 last;
         
         if (!-e $request\_filename) {
   rewrite  ^(.\*)$  /index.php?s=$1  last;
   break;
    }

        }

        ssl\_certificate   证书目录;
        ssl\_certificate\_key  证书目录;

        location ~ .php(.\*)$ {
                fastcgi\_pass   127.0.0.1:9000;
                fastcgi\_index  index.php;
                fastcgi\_param  SCRIPT\_FILENAME $document\_root$fastcgi\_script\_name;
                fastcgi\_param PATH\_INFO $1;
                include fastcgi\_params;
        }
}

修改好配置文件，重启nginx

systemctl restart nginx.service

最后别忘了将apache的开机自启关闭

systemctl disable httpd

ok，到此从apache迁移到nginx就配置结束了，总体上没啥难度

image

由图上可知，应用了nginx之后，系统感觉清爽了很多，内存也节约了大约300多m，系统告别臃肿，轻装上阵。

原文转载自「刘悦的技术博客」 https://v3u.cn/a_id_129