CentOS6.5环境安装nginx服务器及负载均衡配置操作详解
<p>本文实例讲述了centos6.5环境安装nginx服务器及负载均衡配置操作。分享给大家供大家参考，具体如下：</p>
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<strong>1、下载pcre， 是一个用c语言编写的正则表达式函数库</strong></p>
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<code class="bash plain"></code><code class="bash comments"># cd /tmp/download/</code>
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<code class="bash plain"></code><code class="bash comments"># wget http://nchc.dl.sourceforge.net/project/pcre/pcre/8.37/pcre-8.37.tar.gz</code>
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<code class="bash plain"></code><code class="bash comments"># tar zxvf pcre-8.36.tar.gz</code>
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<strong>2、下载zlib库</strong></p>
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<code class="bash plain"></code><code class="bash comments"># cd /tmp/download/</code>
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<code class="bash plain"></code><code class="bash comments"># wget http://ncu.dl.sourceforge.net/project/libpng/zlib/1.2.8/zlib-1.2.8.tar.gz</code>
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<code class="bash plain"></code><code class="bash comments"># tar -zxvf zlib-1.2.8.tar.gz cd zlib-1.2.8</code>
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<strong>4、下载ssl</strong></p>
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<code class="bash plain"></code><code class="bash comments"># cd ..</code>
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<code class="bash plain"></code><code class="bash comments"># wget http://www.openssl.org/source/openssl-1.0.1p.tar.gz</code>
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<code class="bash plain"></code><code class="bash comments"># cd openssl-1.0.1c</code>
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<code class="bash plain"></code><code class="bash comments"># tar -zxvf openssl-1.0.1c.tar.gz</code>
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<strong>5、下载nginx</strong></p>
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<code class="bash plain"></code><code class="bash comments"># wget http://nginx.org/download/nginx-1.2.8.tar.gz</code>
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<code class="bash plain"></code><code class="bash comments"># tar -zxvf nginx-1.2.8.tar.gz</code>
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<strong>6、安装</strong></p>
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<code class="bash plain"></code><code class="bash functions">mv</code> <code class="bash plain">pcre-8.36 </code><code class="bash plain">/usr/local/</code>
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<code class="bash plain"></code><code class="bash functions">mv</code> <code class="bash plain">zlib-1.2.8 </code><code class="bash plain">/usr/local/</code>
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<code class="bash plain"></code><code class="bash functions">mv</code> <code class="bash plain">openssl-1.0.1c </code><code class="bash plain">/usr/local/</code>
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<code class="bash plain"></code><code class="bash functions">mv</code> <code class="bash plain">nginx-1.2.8 </code><code class="bash plain">/usr/local/</code>
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<code class="bash plain"></code><code class="bash functions">cd</code> <code class="bash plain">/usr/local/</code>
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<code class="bash plain"></code><code class="bash comments"># cd pcre-8.36</code>
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<code class="bash plain"></code><code class="bash comments"># ./configure&&make&&make install</code>
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<code class="bash plain"> </code><code class="bash functions">cd</code> <code class="bash plain">..</code><code class="bash plain">/zlib-1</code><code class="bash plain">.2.8</code>
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<code class="bash plain"></code><code class="bash comments"># ./configure && make && make install</code>
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<code class="bash plain"></code><code class="bash comments"># cd ../openssl-1.0.1c</code>
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<code class="bash plain"></code><code class="bash comments"># ./config && make && make install</code>
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<code class="bash plain"></code><code class="bash comments"># cd ../nginx-1.2.8</code>
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<code class="bash plain"></code><code class="bash comments"># ./configure --prefix=/usr/local/nginx && make && make install</code>
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<strong>7、启动nginx</strong></p>
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<code class="bash plain"></code><code class="bash comments"># /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf</code>
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<strong>8、测试</strong></p>
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在确保可以连接到服务器的电脑上，浏览器输入装了nginx的机器的ip地址，会看到welcome to nginx!的提示说明安装配配置成功了。</p>
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<img style="max-width:100%!important;height:auto!important;"title="CentOS6.5环境安装nginx服务器及负载均衡配置操作详解" alt="CentOS6.5环境安装nginx服务器及负载均衡配置操作详解" src="https://zhuji.jb51.net/uploads/img/202305/8e852694d8e6a5a2abe14e8141dc3194.jpg"></p>
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<strong>9、设置开机自动启动（shell脚本处理）</strong></p>
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<code class="bash plain"></code><code class="bash comments"># vi /etc/init.d/nginx</code>
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添加以下shell脚本。</p>
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<code class="bash preprocessor bold">#!/bin/bash</code>
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<code class="bash comments"># nginx startup script for the nginx http server</code>
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<code class="bash comments"># it is v.0.0.2 version.</code>
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<code class="bash comments"># chkconfig: - 85 15</code>
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<code class="bash comments"># description: nginx is a high-performance web and proxy server.</code>
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<code class="bash comments"># it has a lot of features, but it's not for everyone.</code>
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<code class="bash comments"># processname: nginx</code>
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<code class="bash comments"># pidfile: /var/run/nginx.pid</code>
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<code class="bash comments"># config: /usr/local/nginx/conf/nginx.conf</code>
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<code class="bash plain">nginxd=</code><code class="bash plain">/usr/local/nginx/sbin/nginx</code>
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<code class="bash plain">nginx_config=</code><code class="bash plain">/usr/local/nginx/conf/nginx</code><code class="bash plain">.conf</code>
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<code class="bash plain">nginx_pid=</code><code class="bash plain">/var/run/nginx</code><code class="bash plain">.pid</code>
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<code class="bash plain">retval=0</code>
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<code class="bash plain">prog=</code><code class="bash string">"nginx"</code>
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<code class="bash comments"># source function library.</code>
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<code class="bash plain">. </code><code class="bash plain">/etc/rc</code><code class="bash plain">.d</code><code class="bash plain">/init</code><code class="bash plain">.d</code><code class="bash plain">/functions</code>
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<code class="bash comments"># source networking configuration.</code>
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<code class="bash plain">. </code><code class="bash plain">/etc/sysconfig/network</code>
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<code class="bash comments"># check that networking is up.</code>
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<code class="bash plain">[ ${networking} = </code><code class="bash string">"no"</code> <code class="bash plain">] && </code><code class="bash functions">exit</code> <code class="bash plain">0</code>
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<code class="bash plain">[ -x $nginxd ] || </code><code class="bash functions">exit</code> <code class="bash plain">0</code>
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<code class="bash comments"># start nginx daemons functions.</code>
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<code class="bash plain">start() {</code>
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<code class="bash keyword">if</code> <code class="bash plain">[ -e $nginx_pid ];</code><code class="bash keyword">then</code>
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<code class="bash spaces"> </code><code class="bash functions">echo</code> <code class="bash string">"nginx already running...."</code>
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<code class="bash spaces"> </code><code class="bash functions">exit</code> <code class="bash plain">1</code>
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<code class="bash keyword">fi</code>
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<code class="bash spaces"> </code><code class="bash functions">echo</code> <code class="bash plain">-n $</code><code class="bash string">"starting $prog: "</code>
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<code class="bash spaces"> </code><code class="bash plain">daemon $nginxd -c ${nginx_config}</code>
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<code class="bash spaces"> </code><code class="bash plain">retval=$?</code>
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<code class="bash spaces"> </code><code class="bash functions">echo</code>
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<code class="bash spaces"> </code><code class="bash plain">[ $retval = 0 ] && </code><code class="bash functions">touch</code> <code class="bash plain">/var/lock/subsys/nginx</code>
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<code class="bash spaces"> </code><code class="bash keyword">return</code> <code class="bash plain">$retval</code>
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<code class="bash plain">}</code>
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<code class="bash comments"># stop nginx daemons functions.</code>
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<code class="bash plain">stop() {</code>
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<code class="bash spaces"> </code><code class="bash functions">echo</code> <code class="bash plain">-n $</code><code class="bash string">"stopping $prog: "</code>
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<code class="bash spaces"> </code><code class="bash plain">killproc $nginxd</code>
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<code class="bash spaces"> </code><code class="bash plain">retval=$?</code>
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<code class="bash spaces"> </code><code class="bash functions">echo</code>
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<code class="bash spaces"> </code><code class="bash plain">[ $retval = 0 ] && </code><code class="bash functions">rm</code> <code class="bash plain">-f </code><code class="bash plain">/var/lock/subsys/nginx</code> <code class="bash plain">/var/run/nginx</code><code class="bash plain">.pid</code>
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<code class="bash plain">}</code>
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<code class="bash comments"># reload nginx service functions.</code>
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<code class="bash plain">reload() {</code>
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<code class="bash spaces"> </code><code class="bash functions">echo</code> <code class="bash plain">-n $</code><code class="bash string">"reloading $prog: "</code>
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<code class="bash spaces"> </code><code class="bash comments">#kill -hup `cat ${nginx_pid}`</code>
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<code class="bash spaces"> </code><code class="bash plain">killproc $nginxd -hup</code>
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<code class="bash spaces"> </code><code class="bash plain">retval=$?</code>
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<code class="bash spaces"> </code><code class="bash functions">echo</code>
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<code class="bash plain">}</code>
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<code class="bash comments"># see how we were called.</code>
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<code class="bash keyword">case</code> <code class="bash string">"$1"</code> <code class="bash keyword">in</code>
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<code class="bash plain">start)</code>
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<code class="bash spaces"> </code><code class="bash plain">start</code>
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<code class="bash spaces"> </code><code class="bash plain">;;</code>
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<code class="bash plain">stop)</code>
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<code class="bash spaces"> </code><code class="bash plain">stop</code>
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<code class="bash spaces"> </code><code class="bash plain">;;</code>
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<code class="bash plain">reload)</code>
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<code class="bash spaces"> </code><code class="bash plain">reload</code>
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<code class="bash spaces"> </code><code class="bash plain">;;</code>
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<code class="bash plain">restart)</code>
</div>
<div class="line number63 index62 alt2">
<code class="bash spaces"> </code><code class="bash plain">stop</code>
</div>
<div class="line number64 index63 alt1">
<code class="bash spaces"> </code><code class="bash plain">start</code>
</div>
<div class="line number65 index64 alt2">
<code class="bash spaces"> </code><code class="bash plain">;;</code>
</div>
<div class="line number66 index65 alt1">
<code class="bash plain">status)</code>
</div>
<div class="line number67 index66 alt2">
<code class="bash spaces"> </code><code class="bash plain">status $prog</code>
</div>
<div class="line number68 index67 alt1">
<code class="bash spaces"> </code><code class="bash plain">retval=$?</code>
</div>
<div class="line number69 index68 alt2">
<code class="bash spaces"> </code><code class="bash plain">;;</code>
</div>
<div class="line number70 index69 alt1">
<code class="bash plain">*)</code>
</div>
<div class="line number71 index70 alt2">
<code class="bash spaces"> </code><code class="bash functions">echo</code> <code class="bash plain">$</code><code class="bash string">"usage: $prog {start|stop|restart|reload|status|help}"</code>
</div>
<div class="line number72 index71 alt1">
<code class="bash spaces"> </code><code class="bash functions">exit</code> <code class="bash plain">1</code>
</div>
<div class="line number73 index72 alt2">
<code class="bash plain">esac</code>
</div>
<div class="line number74 index73 alt1">
<code class="bash functions">exit</code> <code class="bash plain">$retval</code>
</div>
</div>
</td>
</tr></tbody></table>
</div>
</div>
</div>
<p>
保存后，设置权限让所有人可以操作。</p>
<div class="jb51code">
<div>
<div class="syntaxhighlighterbash" id="highlighter_113683">
<div class="toolbar">
<span>?</span>
</div>
<table border="0" cellpadding="0" cellspacing="0"><tbody><tr>
<td class="gutter">
<div class="line number1 index0 alt2">
1</div>
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10</div>
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<td class="code">
<div class="container">
<div class="line number1 index0 alt2">
<code class="bash plain"></code><code class="bash comments"># chmod a+x /etc/init.d/nginx</code>
</div>
<div class="line number2 index1 alt1">
<code class="bash plain"></code><code class="bash comments"># /etc/init.d/nginx status</code>
</div>
<div class="line number3 index2 alt2">
<code class="bash plain">nginx (pid 2417 2416) is running...</code>
</div>
<div class="line number4 index3 alt1">
<code class="bash plain"></code><code class="bash comments"># /etc/init.d/nginx stop</code>
</div>
<div class="line number5 index4 alt2">
<code class="bash plain">stopping nginx: [ ok ]</code>
</div>
<div class="line number6 index5 alt1">
<code class="bash plain"></code><code class="bash comments"># /etc/init.d/nginx start</code>
</div>
<div class="line number7 index6 alt2">
<code class="bash plain">starting nginx: [ ok ]</code>
</div>
<div class="line number8 index7 alt1">
<code class="bash plain"></code><code class="bash comments"># /etc/init.d/nginx status</code>
</div>
<div class="line number9 index8 alt2">
<code class="bash plain">nginx (pid 2454 2452) is running...</code>
</div>
<div class="line number10 index9 alt1">
<code class="bash plain"></code><code class="bash comments"># vi /etc/rc.local</code>
</div>
</div>
</td>
</tr></tbody></table>
</div>
</div>
</div>
<p>
添加：</p>
<div class="jb51code">
<div>
<div class="syntaxhighlighterbash" id="highlighter_279894">
<div class="toolbar">
<span>?</span>
</div>
<table border="0" cellpadding="0" cellspacing="0"><tbody><tr>
<td class="gutter">
<div class="line number1 index0 alt2">
1</div>
</td>
<td class="code">
<div class="container">
<div class="line number1 index0 alt2">
<code class="bash plain">/etc/init</code><code class="bash plain">.d</code><code class="bash plain">/nginx</code> <code class="bash plain">start</code>
</div>
</div>
</td>
</tr></tbody></table>
</div>
</div>
</div>
<p>
重启电脑就会生效。</p>
<p>
注意：脚本里面关于启动目录的，如果你的安装地址不一样，要进行修改。</p>
<p>
<span><strong>负载均衡配置：</strong></span></p>
<p>
现有两部服务器：</p>
<p>
192.168.137.197 （按照以上操作安装有nginx，作为转发机，虚拟机）<br>
192.168.137.33 （无安装nginx，运行有测试用的web工程，虚拟机）<br>
10.10.33.59 （无安装nginx，运行有测试用的web工程，本地电脑地址）<br>
，运行有测试用的web工程<br>
127.0.0.1 web_app</p>
<div class="jb51code">
<div>
<div class="syntaxhighlighterbash" id="highlighter_714362">
<div class="toolbar">
<span>?</span>
</div>
<table border="0" cellpadding="0" cellspacing="0"><tbody><tr>
<td class="gutter">
<div class="line number1 index0 alt2">
1</div>
</td>
<td class="code">
<div class="container">
<div class="line number1 index0 alt2">
<code class="bash plain"></code><code class="bash comments"># vi /usr/local/nginx/conf/nginx.conf</code>
</div>
</div>
</td>
</tr></tbody></table>
</div>
</div>
</div>
<p>
<strong>配置如下展示：</strong></p>
<div class="jb51code">
<div>
<div class="syntaxhighlighterbash" id="highlighter_443630">
<div class="toolbar">
<span>?</span>
</div>
<table border="0" cellpadding="0" cellspacing="0"><tbody><tr>
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<div class="line number36 index35 alt1">
36</div>
<div class="line number37 index36 alt2">
37</div>
<div class="line number38 index37 alt1">
38</div>
<div class="line number39 index38 alt2">
39</div>
<div class="line number40 index39 alt1">
40</div>
<div class="line number41 index40 alt2">
41</div>
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42</div>
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43</div>
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44</div>
<div class="line number45 index44 alt2">
45</div>
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46</div>
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48</div>
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49</div>
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50</div>
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51</div>
<div class="line number52 index51 alt1">
52</div>
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53</div>
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54</div>
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55</div>
<div class="line number56 index55 alt1">
56</div>
<div class="line number57 index56 alt2">
57</div>
<div class="line number58 index57 alt1">
58</div>
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59</div>
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60</div>
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61</div>
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63</div>
<div class="line number64 index63 alt1">
64</div>
</td>
<td class="code">
<div class="container">
<div class="line number1 index0 alt2">
<code class="bash plain">worker_processes 8;</code>
</div>
<div class="line number2 index1 alt1">
<code class="bash plain">pid </code><code class="bash plain">/usr/local/nginx/nginx</code><code class="bash plain">.pid;</code>
</div>
<div class="line number3 index2 alt2">
<code class="bash plain">worker_rlimit_nofile 102400;</code>
</div>
<div class="line number4 index3 alt1">
<code class="bash plain">events</code>
</div>
<div class="line number5 index4 alt2">
<code class="bash plain">{</code>
</div>
<div class="line number6 index5 alt1">
<code class="bash plain">use epoll;</code>
</div>
<div class="line number7 index6 alt2">
<code class="bash plain">worker_connections 102400;</code>
</div>
<div class="line number8 index7 alt1">
<code class="bash plain">}</code>
</div>
<div class="line number9 index8 alt2">
<code class="bash plain">http</code>
</div>
<div class="line number10 index9 alt1">
<code class="bash plain">{</code>
</div>
<div class="line number11 index10 alt2">
<code class="bash spaces"> </code><code class="bash plain">include mime.types;</code>
</div>
<div class="line number12 index11 alt1">
<code class="bash spaces"> </code><code class="bash plain">default_type application</code><code class="bash plain">/octet-stream</code><code class="bash plain">;</code>
</div>
<div class="line number13 index12 alt2">
<code class="bash spaces"> </code><code class="bash plain">fastcgi_intercept_errors on;</code>
</div>
<div class="line number14 index13 alt1">
<code class="bash spaces"> </code><code class="bash plain">charset utf-8;</code>
</div>
<div class="line number15 index14 alt2">
<code class="bash spaces"> </code><code class="bash plain">server_names_hash_bucket_size 128;</code>
</div>
<div class="line number16 index15 alt1">
<code class="bash spaces"> </code><code class="bash plain">client_header_buffer_size 4k;</code>
</div>
<div class="line number17 index16 alt2">
<code class="bash spaces"> </code><code class="bash plain">large_client_header_buffers 4 32k;</code>
</div>
<div class="line number18 index17 alt1">
<code class="bash spaces"> </code><code class="bash plain">client_max_body_size 300m;</code>
</div>
<div class="line number19 index18 alt2">
<code class="bash spaces"> </code><code class="bash plain">sendfile on;</code>
</div>
<div class="line number20 index19 alt1">
<code class="bash spaces"> </code><code class="bash plain">tcp_nopush on;</code>
</div>
<div class="line number21 index20 alt2">
<code class="bash spaces"> </code><code class="bash plain">keepalive_timeout 60;</code>
</div>
<div class="line number22 index21 alt1">
<code class="bash spaces"> </code><code class="bash plain">tcp_nodelay on;</code>
</div>
<div class="line number23 index22 alt2">
<code class="bash spaces"> </code><code class="bash plain">client_body_buffer_size 512k;</code>
</div>
<div class="line number24 index23 alt1">
<code class="bash spaces"> </code><code class="bash plain">proxy_connect_timeout 5;</code>
</div>
<div class="line number25 index24 alt2">
<code class="bash spaces"> </code><code class="bash plain">proxy_read_timeout 60;</code>
</div>
<div class="line number26 index25 alt1">
<code class="bash spaces"> </code><code class="bash plain">proxy_send_timeout 5;</code>
</div>
<div class="line number27 index26 alt2">
<code class="bash spaces"> </code><code class="bash plain">proxy_buffer_size 16k;</code>
</div>
<div class="line number28 index27 alt1">
<code class="bash spaces"> </code><code class="bash plain">proxy_buffers 4 64k;</code>
</div>
<div class="line number29 index28 alt2">
<code class="bash spaces"> </code><code class="bash plain">proxy_busy_buffers_size 128k;</code>
</div>
<div class="line number30 index29 alt1">
<code class="bash spaces"> </code><code class="bash plain">proxy_temp_file_write_size 128k;</code>
</div>
<div class="line number31 index30 alt2">
<code class="bash spaces"> </code><code class="bash functions">gzip</code> <code class="bash plain">on;</code>
</div>
<div class="line number32 index31 alt1">
<code class="bash spaces"> </code><code class="bash plain">gzip_min_length 1k;</code>
</div>
<div class="line number33 index32 alt2">
<code class="bash spaces"> </code><code class="bash plain">gzip_buffers 4 16k;</code>
</div>
<div class="line number34 index33 alt1">
<code class="bash spaces"> </code><code class="bash plain">gzip_http_version 1.1;</code>
</div>
<div class="line number35 index34 alt2">
<code class="bash spaces"> </code><code class="bash plain">gzip_comp_level 2;</code>
</div>
<div class="line number36 index35 alt1">
<code class="bash spaces"> </code><code class="bash plain">gzip_types text</code><code class="bash plain">/plain</code> <code class="bash plain">application</code><code class="bash plain">/x-javascript</code> <code class="bash plain">text</code><code class="bash plain">/css</code> <code class="bash plain">application</code><code class="bash plain">/xml</code><code class="bash plain">;</code>
</div>
<div class="line number37 index36 alt2">
<code class="bash spaces"> </code><code class="bash plain">gzip_vary on;</code>
</div>
<div class="line number38 index37 alt1">
<code class="bash comments">###2012-12-19 change nginx logs</code>
</div>
<div class="line number39 index38 alt2">
<code class="bash plain">log_format main </code><code class="bash string">'$http_x_forwarded_for - $remote_user [$time_local] "$request" '</code>
</div>
<div class="line number40 index39 alt1">
<code class="bash spaces"> </code><code class="bash string">'$status $body_bytes_sent "$http_referer" '</code>
</div>
<div class="line number41 index40 alt2">
<code class="bash spaces"> </code><code class="bash string">'"$http_user_agent" $request_time $remote_addr'</code><code class="bash plain">;</code>
</div>
<div class="line number42 index41 alt1">
<code class="bash plain">upstream web_app {</code>
</div>
<div class="line number43 index42 alt2">
<code class="bash plain">server 192.168.137.197:8080 weight=1 max_fails=2 fail_timeout=30s;</code>
</div>
<div class="line number44 index43 alt1">
<code class="bash plain">server 192.168.137.33:8080 weight=1 max_fails=2 fail_timeout=30s;</code>
</div>
<div class="line number45 index44 alt2">
<code class="bash plain">server 10.10.33.59:8080 weight=1 max_fails=2 fail_timeout=30s;</code>
</div>
<div class="line number46 index45 alt1">
<code class="bash plain">}</code>
</div>
<div class="line number47 index46 alt2">
<code class="bash comments">####chinaapp.sinaapp.com</code>
</div>
<div class="line number48 index47 alt1">
<code class="bash plain">server {</code>
</div>
<div class="line number49 index48 alt2">
<code class="bash spaces"> </code><code class="bash plain">listen 80;</code>
</div>
<div class="line number50 index49 alt1">
<code class="bash spaces"> </code><code class="bash plain">server_name chinaapp.sinaapp.com;</code>
</div>
<div class="line number51 index50 alt2">
<code class="bash spaces"> </code><code class="bash plain">index index.jsp index.html index.htm;</code>
</div>
<div class="line number52 index51 alt1">
<code class="bash spaces"> </code><code class="bash comments">#发布目录/data/www</code>
</div>
<div class="line number53 index52 alt2">
<code class="bash spaces"> </code><code class="bash plain">root </code><code class="bash plain">/data/www</code><code class="bash plain">;</code>
</div>
<div class="line number54 index53 alt1">
<code class="bash spaces"> </code><code class="bash plain">location /</code>
</div>
<div class="line number55 index54 alt2">
<code class="bash spaces"> </code><code class="bash plain">{</code>
</div>
<div class="line number56 index55 alt1">
<code class="bash spaces"> </code><code class="bash plain">proxy_next_upstream http_502 http_504 error timeout invalid_header;</code>
</div>
<div class="line number57 index56 alt2">
<code class="bash spaces"> </code><code class="bash plain">proxy_set_header host $host;</code>
</div>
<div class="line number58 index57 alt1">
<code class="bash spaces"> </code><code class="bash plain">proxy_set_header x-real-ip $remote_addr;</code>
</div>
<div class="line number59 index58 alt2">
<code class="bash spaces"> </code><code class="bash plain">proxy_set_header x-forwarded-</code><code class="bash keyword">for</code> <code class="bash plain">$proxy_add_x_forwarded_for;</code>
</div>
<div class="line number60 index59 alt1">
<code class="bash spaces"> </code><code class="bash plain">proxy_pass http:</code><code class="bash plain">//web_app</code><code class="bash plain">;</code>
</div>
<div class="line number61 index60 alt2">
<code class="bash spaces"> </code><code class="bash plain">expires 3d;</code>
</div>
<div class="line number62 index61 alt1">
<code class="bash spaces"> </code><code class="bash plain">}</code>
</div>
<div class="line number63 index62 alt2">
<code class="bash spaces"> </code><code class="bash plain">}</code>
</div>
<div class="line number64 index63 alt1">
<code class="bash plain">}</code>
</div>
</div>
</td>
</tr></tbody></table>
</div>
</div>
</div>
<p>
<strong>设置host：</strong></p>
<div class="jb51code">
<div>
<div class="syntaxhighlighterbash" id="highlighter_838439">
<div class="toolbar">
<span>?</span>
</div>
<table border="0" cellpadding="0" cellspacing="0"><tbody><tr>
<td class="gutter">
<div class="line number1 index0 alt2">
1</div>
</td>
<td class="code">
<div class="container">
<div class="line number1 index0 alt2">
<code class="bash plain"></code><code class="bash comments"># vi /etc/hosts</code>
</div>
</div>
</td>
</tr></tbody></table>
</div>
</div>
</div>
<p>
<strong>添加hosts：</strong></p>
<div class="jb51code">
<div>
<div class="syntaxhighlighterbash" id="highlighter_839537">
<div class="toolbar">
<span>?</span>
</div>
<table border="0" cellpadding="0" cellspacing="0"><tbody><tr>
<td class="gutter">
<div class="line number1 index0 alt2">
1</div>
</td>
<td class="code">
<div class="container">
<div class="line number1 index0 alt2">
<code class="bash plain">127.0.0.1 web_app</code>
</div>
</div>
</td>
</tr></tbody></table>
</div>
</div>
</div>
<p>
<strong>启动nginx</strong></p>
<div class="jb51code">
<div>
<div class="syntaxhighlighterbash" id="highlighter_711257">
<div class="toolbar">
<span>?</span>
</div>
<table border="0" cellpadding="0" cellspacing="0"><tbody><tr>
<td class="gutter">
<div class="line number1 index0 alt2">
1</div>
</td>
<td class="code">
<div class="container">
<div class="line number1 index0 alt2">
<code class="bash plain"></code><code class="bash comments"># /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf</code>
</div>
</div>
</td>
</tr></tbody></table>
</div>
</div>
</div>
<p>
启动三部服务器的web应用：</p>
<p>
在192.168.137.197执行指令：</p>
<div class="jb51code">
<div>
<div class="syntaxhighlighterbash" id="highlighter_146792">
<div class="toolbar">
<span>?</span>
</div>
<table border="0" cellpadding="0" cellspacing="0"><tbody><tr>
<td class="gutter">
<div class="line number1 index0 alt2">
1</div>
</td>
<td class="code">
<div class="container">
<div class="line number1 index0 alt2">
<code class="bash plain"></code><code class="bash comments"># curl "http://web_app/index.jsp"</code>
</div>
</div>
</td>
</tr></tbody></table>
</div>
</div>
</div>
<p>
<strong>测试结果如下：</strong></p>
<p>
<img style="max-width:100%!important;height:auto!important;"title="CentOS6.5环境安装nginx服务器及负载均衡配置操作详解" alt="CentOS6.5环境安装nginx服务器及负载均衡配置操作详解" src="https://zhuji.jb51.net/uploads/img/202305/a8e518bbfa45c8f1be36faca62385295.jpg"></p>
<p>
<span><strong>常见问题及解决办法：</strong></span></p>
<p>
<strong>1、安装pcre时提示</strong><span>configure: error: you need a c++ compiler for c++ support.</span></p>
<p>
原因是没有安装c++编译器，采用下面的命令安装：</p>
<div class="jb51code">
<div>
<div class="syntaxhighlighterbash" id="highlighter_419302">
<div class="toolbar">
<span>?</span>
</div>
<table border="0" cellpadding="0" cellspacing="0"><tbody><tr>
<td class="gutter">
<div class="line number1 index0 alt2">
1</div>
</td>
<td class="code">
<div class="container">
<div class="line number1 index0 alt2">
<code class="bash plain"></code><code class="bash comments"># yum install -y gcc gcc-c++</code>
</div>
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<strong>2、启动nginx失败</strong></p>
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<code class="bash plain"></code><code class="bash comments"># /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf</code>
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<code class="bash plain">/usr/local/nginx/sbin/nginx</code><code class="bash plain">: error </code><code class="bash keyword">while</code> <code class="bash plain">loading shared libraries: libpcre.so.1: cannot </code><code class="bash functions">open</code> <code class="bash plain">shared object </code><code class="bash functions">file</code><code class="bash plain">: no such </code><code class="bash functions">file</code> <code class="bash plain">or directory</code>
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原因是64bit的系统，但是默认取了/usr/local/lib里面的包</p>
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检查方法：</p>
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<code class="bash plain"></code><code class="bash comments"># cd /usr/local/</code>
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<code class="bash plain"></code><code class="bash comments"># ls /lib64/ |grep pcre</code>
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<code class="bash plain">libpcre.so.0</code>
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<code class="bash plain">libpcre.so.0.0.1</code>
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<code class="bash plain"></code><code class="bash comments"># ls /lib/ |grep pcre</code>
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说明缺失的包在lib64</p>
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设置软连接来解决：</p>
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<code class="bash plain"></code><code class="bash comments"># ln -s /lib64/libpcre.so.0.0.1 /lib64/libpcre.so.1</code>
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<code class="bash plain"></code><code class="bash comments"># cd nginx</code>
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<code class="bash plain"></code><code class="bash comments"># /usr/local/nginx/sbin/nginx -c /usr/local/nginx/conf/nginx.conf</code>
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<p>
<strong>3、启动报错：</strong></p>
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报错：<span>nginx: bind() to 0.0.0.0:80 failed (98: address already in use)</span></p>
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解决办法：<code>sudo fuser -k 80/tcp</code></p>
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端口被占用，关闭占用端口</p>
<p>
希望本文所述对大家centos服务器配置有所帮助。</p>
<p>
原文链接：https://blog.csdn.net/hanzheng260561728/article/details/51884108</p>
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