Snort入侵检测系统部署与测试
----小迟
小迟的主页：
http://Chameleon.icpcn.com
QQ:181500883
测试环境RH Enterprise AS3、4
动画下载见附件
一、安装Snort：
1）先安装pcre目录里的pcre-7.0.tar.gz
方法：
tar zxvf pcre-7.0.tar.gz
cd pcre-7.0
./configure
make
make install
2）安装snort-2.4.2.tar.gz
方法同上
3）解压Snort规则包snortrules-pr-2.4.tar.tar
方法tar zxvf snortrules-pr-2.4.tar.tar
4）安装Snort插件snortsam-src-2.50.tar.tar
方法同1）
以上安装好后执行：
mkdir /etc/snort
mkdir /var/log/snort
cp /chameleon/Snort/snort-2.4.2/etc/snort.conf /etc/snort
cp /chameleon/Snort/snort-2.4.2/etc/*.map /etc/snort
cp /chameleon/Snort/snort-2.4.2/etc/*.config /etc/snort
mkdir /chameleon/Snort/snort-2.4.2/rules/
cp /chameleon/Snort/snort-2.4.2/rules/*.rules /etc/snort
以上根绝个人安装目录不同可作适当修改
二、修改配置文件：
vi /etc/snort/snort.conf
修改其中规则路径：
var RULE_PATH /etc/snort
三、启动snort:
后台启动：
snort -c /etc/snort/snort.conf -D
我们可以用ps -aux|grep snort来看一下Snort是否成功启动了
启动成功
四、测试snort：
在运行Snort的主机上执行tail -f /var/log/snort/alert命令实时查看警告日志：
然后我在另一台机器上用hping2工具，也可以直接用ping命令来测试：
hping2 -x 运行snort主机的ip 或 ping 运行snort主机的ip
注意看了，他的日志在不断记录着，当我停止后他就没再记录了
这是会看到alert日志不听的告警，如下：
[**] [1:368:6] ICMP PING BSDtype [**]
[Classification: Misc activity] [Priority: 3]
03/06-10:28:39.272055 218.206.116.41 -> 192.168.1.7
ICMP TTL:55 TOS:0x0 ID:8 IpLen:20 DgmLen:84 DF
Type:8 Code:0 ID:32882 Seq:8 ECHO
[Xref => http://www.whitehats.com/info/IDS152]
[**] [1:366:7] ICMP PING *NIX [**]
[Classification: Misc activity] [Priority: 3]
03/06-10:28:39.272055 218.206.116.41 -> 192.168.1.7
ICMP TTL:55 TOS:0x0 ID:8 IpLen:20 DgmLen:84 DF
Type:8 Code:0 ID:32882 Seq:8 ECHO
[**] [1:384:5] ICMP PING [**]
[Classification: Misc activity] [Priority: 3]
03/06-10:28:39.272055 218.206.116.41 -> 192.168.1.7
ICMP TTL:55 TOS:0x0 ID:8 IpLen:20 DgmLen:84 DF
Type:8 Code:0 ID:32882 Seq:8 ECHO
[**] [1:368:6] ICMP PING BSDtype [**]
[Classification: Misc activity] [Priority: 3]
03/06-10:28:40.281751 218.206.116.41 -> 192.168.1.7
ICMP TTL:55 TOS:0x0 ID:9 IpLen:20 DgmLen:84 DF
Type:8 Code:0 ID:32882 Seq:9 ECHO
[Xref => http://www.whitehats.com/info/IDS152]
[**] [1:366:7] ICMP PING *NIX [**]
[Classification: Misc activity] [Priority: 3]
03/06-10:28:40.281751 218.206.116.41 -> 192.168.1.7
ICMP TTL:55 TOS:0x0 ID:9 IpLen:20 DgmLen:84 DF
Type:8 Code:0 ID:32882 Seq:9 ECHO
[**] [1:384:5] ICMP PING [**]
[Classification: Misc activity] [Priority: 3]
03/06-10:28:40.281751 218.206.116.41 -> 192.168.1.7
ICMP TTL:55 TOS:0x0 ID:9 IpLen:20 DgmLen:84 DF
Type:8 Code:0 ID:32882 Seq:9 ECHO
2007.3.6
