#下面是第三部分，主要是一些特殊或附加的检测，例如对rootkit文件或目录检测、对恶意软件检测以及对指定的内核模块检测
Performing additional rootkit checks
Suckit Rookit additional checks                          [ OK ]
Checking for possible rootkit files and directories      [ None found ]
Checking for possible rootkit strings                    [ None found ]
Performing malware checks
Checking running processes for suspicious files          [ None found ]
Checking for login backdoors                          [ None found ]
Checking for suspicious directories                     [ None found ]
Checking for sniffer log files                          [ None found ]
Performing Linux specific checks
Checking loaded kernel modules                     [ OK ]
Checking kernel module names                     [ OK ]
[Press <ENTER> to continue]
#下面是第四部分，主要对网络、系统端口、系统启动文件、系统用户和组配置、SSH配置、文件系统等进行检测
Checking the network...
Performing checks on the network ports
Checking for backdoor ports                         [ None found ]
Performing checks on the network interfaces
Checking for promiscuous interfaces                      [ None found ]
Checking the local host...
Performing system boot checks
Checking for local host name                         [ Found ]
Checking for system startup files                        [ Found ]
Checking system startup files for malware                [ None found ]
Performing group and account checks
Checking for passwd file [ Found ]
Checking for root equivalent (UID 0) accounts            [ None found ]
Checking for passwordless accounts                   [ None found ]
....(略)....
[Press <ENTER> to continue]
#下面是第五部分，主要是对应用程序版本进行检测
Checking application versions...
Checking version of GnuPG[ OK ]
Checking version of OpenSSL                        [ Warning ]
Checking version of OpenSSH                        [ OK ]
#下面是后一部分，这个部分其实是上面输出的一个总结，通过这个总结，可以大概了解服务器目录的安全状态。
System checks summary
=====================
File properties checks...
Required commands check failed
Files checked: 137
Suspect files: 4
Rootkit checks...
Rootkits checked : 311
Possible rootkits: 0
Applications checks...
Applications checked: 3
Suspect applications: 1
The system checks took: 6 minutes and 41 seconds
　　在Linux终端使用rkhunter来检测，大的好处在于每项的检测结果都有不同的颜色显示，如果是绿色的表示没有问题，如果是红色的，那要引起关注了。另外，在上面执行检测的过程中，在每个部分检测完成后，需要以Enter键来继续。如果要让程序自动运行，可以执行如下命令：
　　[root@server ~]# /usr/local/bin/rkhunter –check –skip-keypress
　　同时，如果想让检测程序每天定时运行，那么可以在/etc/crontab中加入如下内容：
　　30 09 * * * root /usr/local/bin/rkhunter –check –cronjob
　　这样，rkhunter检测程序会在每天的9:30分运行一次。
　　安全更新：
　　刚刚爆出Bash安全漏洞，SSH bash紧急安全补丁！重要！
　　测试是否存在漏洞，执行以下命令：
　　$ env x='() { :;}; echo vulnerable' bash -c "echo this is a test"
　　vulnerable
　　this is a test
　　如果显示如上，那么，很遗憾，必须立即打上安全补丁修复，
　　临时解决办法为：
　　yum -y update bash
　　升级bash后，执行测试：
　　$ env x='() { :;}; echo vulnerable' bash -c "echo this is a test"
　　bash: warning: x: ignoring function definition attempt
　　bash: error importing function definition for `x'
　　this is a test
　　如果显示如上，表示已经修补了漏洞。