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202 lines
9.7 KiB
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202 lines
9.7 KiB
Markdown
如何在 CentOS 7 用 cPanel 配置 Nginx 反向代理
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================================================================================
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Nginx 是最快和最强大的 Web 服务器之一，以其高性能和低资源占用率而闻名。它既可以被安装为一个独立的 Web 服务器，也可以安装成反向代理 Web 服务器。在这篇文章，我将讨论在安装了 cPanel 管理系统的 Centos 7 服务器上安装 Nginx 作为 Apache 的反向代理服务器。
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Nginx 作为前端服务器用反向代理为静态文件提供服务，Apache 作为后端为动态文件提供服务。这个设置将整体提高服务器的性能。
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让我们过一遍在已经安装好 cPanel 11.52 的 CentOS 7 x86_64 服务器上配置 Nginx 作为反向代理的安装过程。
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首先，我们需要安装 EPEL 库来启动这个进程
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### 第一步: 安装 EPEL 库###
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root@server1 [/usr]# yum -y install epel-release
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Loaded plugins: fastestmirror, tsflags, universal-hooks
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Loading mirror speeds from cached hostfile
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* EA4: 66.23.237.210
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* base: mirrors.linode.com
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* extras: mirrors.linode.com
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* updates: mirrors.linode.com
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Resolving Dependencies
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--> Running transaction check
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---> Package epel-release.noarch 0:7-5 will be installed
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--> Finished Dependency Resolution
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Dependencies Resolved
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========================================================================================
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Package Arch Version Repository Size
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========================================================================================
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Installing:
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epel-release noarch 7-5 extras 14 k
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### 第二步: 可以安装 nDeploy 的 CentOS RPM 库来安装我们所需的 nDeploy Web 类软件和 Nginx 插件 ###
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root@server1 [/usr]# yum -y install http://rpm.piserve.com/nDeploy-release-centos-1.0-1.noarch.rpm
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Loaded plugins: fastestmirror, tsflags, universal-hooks
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nDeploy-release-centos-1.0-1.noarch.rpm | 1.7 kB 00:00:00
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Examining /var/tmp/yum-root-ei5tWJ/nDeploy-release-centos-1.0-1.noarch.rpm: nDeploy-release-centos-1.0-1.noarch
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Marking /var/tmp/yum-root-ei5tWJ/nDeploy-release-centos-1.0-1.noarch.rpm to be installed
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Resolving Dependencies
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--> Running transaction check
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---> Package nDeploy-release-centos.noarch 0:1.0-1 will be installed
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--> Finished Dependency Resolution
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Dependencies Resolved
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========================================================================================
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Package Arch Version Repository Size
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========================================================================================
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Installing:
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nDeploy-release-centos noarch 1.0-1 /nDeploy-release-centos-1.0-1.noarch 110
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### 第三步：安装 nDeploy 和 Nginx nDeploy 插件 ###
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root@server1 [/usr]# yum --enablerepo=ndeploy install nginx-nDeploy nDeploy
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Loaded plugins: fastestmirror, tsflags, universal-hooks
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epel/x86_64/metalink | 9.9 kB 00:00:00
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epel | 4.3 kB 00:00:00
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ndeploy | 2.9 kB 00:00:00
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(1/4): ndeploy/7/x86_64/primary_db | 14 kB 00:00:00
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(2/4): epel/x86_64/group_gz | 169 kB 00:00:00
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(3/4): epel/x86_64/primary_db | 3.7 MB 00:00:02
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Dependencies Resolved
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========================================================================================
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Package Arch Version Repository Size
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========================================================================================
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Installing:
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nDeploy noarch 2.0-11.el7 ndeploy 80 k
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nginx-nDeploy x86_64 1.8.0-34.el7 ndeploy 36 M
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Installing for dependencies:
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PyYAML x86_64 3.10-11.el7 base 153 k
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libevent x86_64 2.0.21-4.el7 base 214 k
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memcached x86_64 1.4.15-9.el7 base 84 k
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python-inotify noarch 0.9.4-4.el7 base 49 k
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python-lxml x86_64 3.2.1-4.el7 base 758 k
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Transaction Summary
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========================================================================================
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Install 2 Packages (+5 Dependent packages)
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通过以上这些步骤，我们完成了在我们的服务器上 Nginx 插件的安装。现在我们可以配置 Nginx 作为反向代理和为已有的 cPanel 用户账户创建虚拟主机，为此我们可以运行如下脚本。
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### 第四步：启动 Nginx 作为默认的前端 Web 服务器，并创建默认的配置文件###
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root@server1 [/usr]# /opt/nDeploy/scripts/cpanel-nDeploy-setup.sh enable
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Modifying apache http and https port in cpanel
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httpd restarted successfully.
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Created symlink from /etc/systemd/system/multi-user.target.wants/nginx.service to /usr/lib/systemd/system/nginx.service.
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Created symlink from /etc/systemd/system/multi-user.target.wants/ndeploy_watcher.service to /usr/lib/systemd/system/ndeploy_watcher.service.
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Created symlink from /etc/systemd/system/multi-user.target.wants/ndeploy_backends.service to /usr/lib/systemd/system/ndeploy_backends.service.
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ConfGen:: saheetha
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ConfGen:: satest
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你可以看到这个脚本将修改 Apache 的端口从 80 到另一个端口来让 Nginx 作为前端 Web 服务器，并为现有的 cPanel 用户创建虚拟主机配置文件。一旦完成，确认 Apache 和 Nginx 的状态。
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#### Apache 状态：####
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root@server1 [/var/run/httpd]# systemctl status httpd
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● httpd.service - Apache Web Server
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Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor preset: disabled)
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Active: active (running) since Mon 2016-01-18 06:34:23 UTC; 12s ago
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Process: 25606 ExecStart=/usr/sbin/apachectl start (code=exited, status=0/SUCCESS)
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Main PID: 24760 (httpd)
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CGroup: /system.slice/httpd.service
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‣ 24760 /usr/local/apache/bin/httpd -k start
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Jan 18 06:34:23 server1.centos7-test.com systemd[1]: Starting Apache Web Server...
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Jan 18 06:34:23 server1.centos7-test.com apachectl[25606]: httpd (pid 24760) already running
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Jan 18 06:34:23 server1.centos7-test.com systemd[1]: Started Apache Web Server.
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#### Nginx 状态：####
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root@server1 [~]# systemctl status nginx
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● nginx.service - nginx-nDeploy - high performance web server
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Loaded: loaded (/usr/lib/systemd/system/nginx.service; enabled; vendor preset: disabled)
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Active: active (running) since Sun 2016-01-17 17:18:29 UTC; 13h ago
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Docs: http://nginx.org/en/docs/
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Main PID: 3833 (nginx)
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CGroup: /system.slice/nginx.service
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├─ 3833 nginx: master process /usr/sbin/nginx -c /etc/nginx/nginx.conf
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├─25473 nginx: worker process
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├─25474 nginx: worker process
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└─25475 nginx: cache manager process
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Jan 17 17:18:29 server1.centos7-test.com systemd[1]: Starting nginx-nDeploy - high performance web server...
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Jan 17 17:18:29 server1.centos7-test.com nginx[3804]: nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
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Jan 17 17:18:29 server1.centos7-test.com nginx[3804]: nginx: configuration file /etc/nginx/nginx.conf test is successful
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Jan 17 17:18:29 server1.centos7-test.com systemd[1]: Started nginx-nDeploy - high performance web server.
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Nginx 作为前端服务器运行在 80 端口，Apache 配置被更改为监听 http 端口 9999 和 https 端口 4430。请看他们的情况：
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root@server1 [/usr/local/src]# netstat -plan | grep httpd
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tcp 0 0 0.0.0.0:4430 0.0.0.0:* LISTEN 17270/httpd
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tcp 0 0 0.0.0.0:9999 0.0.0.0:* LISTEN 17270/httpd
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tcp6 0 0 :::4430 :::* LISTEN 17270/httpd
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tcp6 0 0 :::9999 :::* LISTEN 17270/httpd
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root@server1 [/usr/local/src]# netstat -plan | grep nginx
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tcp 0 0 127.0.0.1:80 0.0.0.0:* LISTEN 17802/nginx: master
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tcp 0 0 45.79.183.73:80 0.0.0.0:* LISTEN 17802/nginx: master
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为已有用户创建的虚拟主机的配置文件在 "**/etc/nginx/sites-enabled**"。 这个文件路径包含了 Nginx 主要配置文件。
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root@server1 [/etc/nginx/sites-enabled]# ll | grep .conf
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-rw-r--r-- 1 root root 311 Jan 17 09:02 saheetha.com.conf
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-rw-r--r-- 1 root root 336 Jan 17 09:02 saheethastest.com.conf
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#### 一个域名的示例虚拟主机：###
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server {
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listen 45.79.183.73:80;
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#CPIPVSIX:80;
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# ServerNames
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server_name saheetha.com www.saheetha.com;
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access_log /usr/local/apache/domlogs/saheetha.com main;
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access_log /usr/local/apache/domlogs/saheetha.com-bytes_log bytes_log;
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include /etc/nginx/sites-enabled/saheetha.com.include;
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}
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我们可以启动浏览器查看网站来确定 Web 服务器的工作状态。安装后，请阅读服务器上的 web 服务信息。
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root@server1 [/home]# ip a | grep -i eth0
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3: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
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inet 45.79.183.73/24 brd 45.79.183.255 scope global dynamic eth0
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root@server1 [/home]# nginx -v
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nginx version: nginx/1.8.0
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Nginx 将会为任何最新在 cPanel 中创建的账户创建虚拟主机。通过这些简单的的步骤，我们能够在一台 CentOS 7 / cPanel 的服务器上配置 Nginx 作为反向代理。
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### Nginx 作为反向代理的优势###
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1. 便于安装和配置。
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2. 效率高、性能好。
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3. 防止 Ddos 攻击。
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4. 支持使用 .htaccess 作为 PHP 的重写规则。
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我希望这篇文章对你们有用。感谢你看它。我非常高兴收到你的宝贵意见和建议，并进一步改善。
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--------------------------------------------------------------------------------
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via: http://linoxide.com/linux-how-to/set-nginx-reverse-proxy-centos-7-cpanel/
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作者：[Saheetha Shameer][a]
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译者：[bestony](https://github.com/bestony)
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校对：[wxy](https://github.com/wxy)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: http://linoxide.com/author/saheethas/
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