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jQuery火箭图标返回顶部代码</h1>
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<p><span style="font-family: 'Microsoft YaHei';"> 工作中我们常常遇到，有的员工不安于被分配的权限，老是想sudo echo "ziji" /usr/bin/visudo NOPASSWD:ALL来进行提权，造成误删了数据库某条重要的数据，或者执行了一条命令对线上生产造成了严重的影响，部门老大又苦于找不到造成这种现象的操作者，CTO对你们部门直接扣除绩效，这样你们集体成了背锅侠。。。为了记录员工做的违规操作行为，所以就有了以下的方案。</span><br /><span style="font-family: 'Microsoft YaHei';"> 我们今天要学习的是：sudo日志审计，专门对使用sudo命令的系统用户记录其执行的命令相关信息，所谓日志审计，就是记录所有系统及相关用户行为的信息，并且可以自动分析，处理，展示（包括文本或着录像）</span></p>
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<h2><span style="font-family: 'Microsoft YaHei';"><span style="font-size: 14px;">一）生产环境日志审计解决方案： </span> </span></h2>
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<p><span style="font-family: 'Microsoft YaHei';">通过环境变量命令及syslog服务进行全部日志审计（信息太大，不推荐）</span></p>
<p><span style="font-family: 'Microsoft YaHei';">sudo配合syslog服务，进行日志审计（信息较少，效果不错）</span></p>
<p><span style="font-family: 'Microsoft YaHei';">在bash解释器程序里嵌入一个监视器，让所有被审计的系统用户使用修改过的增加了监视器的特殊bash程序作为解释程序。</span></p>
<p><span style="font-family: 'Microsoft YaHei';">齐治的堡垒机：商业产品</span></p>
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<h2><span style="font-family: 'Microsoft YaHei'; font-size: 14px;">二）配置sudo日志审计</span></h2>
<p><span style="font-family: 'Microsoft YaHei';">说明：所谓sudo命令日志审计，并不记录普通用户的普通操作，而是记录，那些执行sudo命令的用户的操作。</span></p>
<h3><span style="font-family: 'Microsoft YaHei'; font-size: 13px;">１、安装sudo命令，rsyslog服务</span></h3>
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<pre><span style="font-family: 'Microsoft YaHei';"><span style="color: #008080;user-select:none;">1</span> [root@s-<span style="color: #800080;">28</span> /]# rpm -qa|grep sudo #要是没安装执行yum install sudo -<span style="color: #000000;">y
</span><span style="color: #008080;user-select:none;">2</span> sudo-<span style="color: #800080;">1.8</span>.19p2-<span style="color: #800080;">13</span><span style="color: #000000;">.el7.x86_64
</span><span style="color: #008080;user-select:none;">3</span> [root@s-<span style="color: #800080;">28</span> /]# rpm -qa|grep rsyslog #要是没安装执行yum install rsyslog -<span style="color: #000000;">y
</span><span style="color: #008080;user-select:none;">4</span> rsyslog-<span style="color: #800080;">8.24</span>.<span style="color: #800080;">0</span>-<span style="color: #800080;">16</span><span style="color: #000000;">.el7.x86_64
</span><span style="color: #008080;user-select:none;">5</span> [root@s-<span style="color: #800080;">28</span> /]# </span></pre>
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<h3><span style="font-family: 'Microsoft YaHei'; font-size: 13px;">２、配置服务</span></h3>
<p><span style="font-family: 'Microsoft YaHei'; font-size: 13px;">2.1配置系统日志/etc/rsyslog.conf，增加配置local.debug到/etc/rsyslog.conf中</span></p>
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<pre><span style="color: #008080;user-select:none;">1</span> [root@s-<span style="color: #800080;">28</span> /]# cat /<span style="color: #0000ff;">var</span>/log/ #查看日志文件是否存在没有就创建mkdir -p /<span style="color: #0000ff;">var</span>/<span style="color: #000000;">log
</span><span style="color: #008080;user-select:none;">2</span> cat: /<span style="color: #0000ff;">var</span>/log/<span style="color: #000000;">: Is a directory
</span><span style="color: #008080;user-select:none;">3</span> [root@s-<span style="color: #800080;">28</span> /]# cat /etc/redhat-<span style="color: #000000;">release
</span><span style="color: #008080;user-select:none;">4</span> CentOS Linux release <span style="color: #800080;">7.5</span>.<span style="color: #800080;">1804</span><span style="color: #000000;"> (Core)
</span><span style="color: #008080;user-select:none;">5</span> [root@s-<span style="color: #800080;">28</span> /]# uname -<span style="color: #000000;">r
</span><span style="color: #008080;user-select:none;">6</span> <span style="color: #800080;">3.10</span>.<span style="color: #800080;">0</span>-<span style="color: #800080;">862</span><span style="color: #000000;">.el7.x86_64
</span><span style="color: #008080;user-select:none;">7</span> [root@s-<span style="color: #800080;">28</span> /]# tail -<span style="color: #800080;">1</span> /etc/rsyslog.conf #没有就执行echo <span style="color: #800000;">"</span><span style="color: #800000;">local.debug /var/log/sudo.log</span><span style="color: #800000;">"</span>>>/etc/<span style="color: #000000;">rsyslog.conf
</span><span style="color: #008080;user-select:none;">8</span> local.debug /<span style="color: #0000ff;">var</span>/log/<span style="color: #000000;">sudo.log
</span><span style="color: #008080;user-select:none;">9</span> [root@s-<span style="color: #800080;">28</span> /]# </pre>
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<p>2.2配置/etc/sudoers，<span style="font-family: 'Microsoft YaHei';">增加配置 “Defaults logfile=/var/log/sudo.log” 到/etc/sudoers中，注意：不包含引号。</span></p>
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<pre><span style="color: #008080;user-select:none;">1</span> [root@s-<span style="color: #800080;">28</span> /]# echo <span style="color: #800000;">"</span><span style="color: #800000;">Defaults logfile=/var/log/sudo.log</span><span style="color: #800000;">"</span>>>/etc/<span style="color: #000000;">sudoers
</span><span style="color: #008080;user-select:none;">2</span> [root@s-<span style="color: #800080;">28</span> /]# tail -<span style="color: #800080;">1</span> /etc/<span style="color: #000000;">sudoers
</span><span style="color: #008080;user-select:none;">3</span> Defaults logfile=/<span style="color: #0000ff;">var</span>/log/<span style="color: #000000;">sudo.log
</span><span style="color: #008080;user-select:none;">4</span> [root@s-<span style="color: #800080;">28</span> /]# visudo -<span style="color: #000000;">c
</span><span style="color: #008080;user-select:none;">5</span> /etc/<span style="color: #000000;">sudoers: parsed OK
</span><span style="color: #008080;user-select:none;">6</span> [root@s-<span style="color: #800080;">28</span> /]# </pre>
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<h3><span style="font-family: 'Microsoft YaHei'; font-size: 13px;"> 3、重启syslog内核日志记录器（简单来说就是重启服务了）</span></h3>
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<pre><span style="color: #008080;user-select:none;">1</span> [root@s-<span style="color: #800080;">28</span> /<span style="color: #000000;">]# systemctl restart rsyslog
</span><span style="color: #008080;user-select:none;">2</span> [root@s-<span style="color: #800080;">28</span> /]# </pre>
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<p><span style="font-family: 'Microsoft YaHei';"> 说到审计，有时候需要自定义审计规则，想了解的请参考下文哦：</span></p>
<p class="col-article-title J-articleTitle">CentOS 7上编写自定义系统审计规则</p>
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