首先明确操作系统平台是Ubuntu 14.04 LTS
现在我们要在Ubuntu 14.04上部署snort NIDS（入侵检测系统）。
需要这些东西：
SNORT / Barnyard2 / Mysql / Apache2 / BASE
在进行所有工作之前，请执行以下命令，确保安装必要的软件（工具链）
<span style="font-family:Hiragino Sans GB;">sudo apt-get install -y build-essential </span><span style="font-family:Comic Sans MS;">libpcap0.8-dev</span><span style="font-family: 'Hiragino Sans GB';"> </span><span style="font-family:Hiragino Sans GB;">libpcre3-dev libdumbnet-dev bison flex zlib1g-dev</span>
sudo apt-get install snort另外一种是从源代码安装。
sudo apt-get update
sudo apt-get upgrade
测试看看，执行：
snort -V如果显示出以下：
,,_ -*> Snort! <*-
o" )~ Version 2.9.7.0 GRE (Build 149)
'''' By Martin Roesch & The Snort Team: http://www.snort.org/contact#team
Copyright (C) 2014 Cisco and/or its affiliates. All rights reserved.
Copyright (C) 1998-2013 Sourcefire, Inc., et al.
Using libpcap version 1.5.3
Using PCRE version: 8.31 2012-07-06
Using ZLIB version: 1.2.8接着我们要修改snort的配置文件（注意我们使用的软件源方式，故配置文件路径较为固定）
sudo vim /etc/snort/snort.conf
将115行（大概位置）修改如下（如果一样的话则不修改）
var RULE_PATH /etc/snort/rules var SO_RULE_PATH /etc/snort/so_rules var PREPROC_RULE_PATH /etc/snort/preproc_rules目的在于指定规则文件存放的路径。
ipvar HOME_NET 192.168.1.0/24
第536行，修改成如下所示 ：
output unified2: filename snort.log, limit 128, mpls_event_types, vlan_event_types
（如果文件本身就和我这里修改后的一样则没必要修改）
现在启动测试SNORT :
sudo service snort restart删除之前日志中得内容（我们改变了日志格式，使用了时间戳格式）
sudo rm /var/log/snort/snort.log
现在我们要测试下snort的规则。
/etc/snort/rules是我们的用于存放规则文件的路径。以后snort就是根据诸多的规则文件给我们提供预警和提示。
打开规则文件：
sudo vim /etc/snort/rules/local.ruleslocal.rules是用于自定义规则的规则文件。然后添加自己的规则到local.rules：
alert icmp any any -> $HOME_NET any (msg:"ICMP Test NOW!!!"; classtype:not-suspicious; sid:1000001; rev:1;) alert tcp any any -> $HOME_NET 80 (msg:"HTTP Test NOW!!!"; classtype:not-suspicious; sid:1000002; rev:1;)这两条规则大概就是说任何发往本机的ICMP和HTTP数据包都会触发警告！
为了便于测试，继续修改snort.conf文件。大概在573行的位置。作如下操作：
将除了local.rules之外的规则文件全部去除（不包含进来）。（也就是接下来数十行的include）。
最终这样：
# site specific rules include $RULE_PATH/local.rules
sudo snort -T -c /etc/snort/snort.conf
如果看到显示结果如下：
... Snort successfully validated the configuration! Snort exiting并且还能在诸多输出信息中找到如下输出：
+++++++++++++++++++++++++++++++++++++++++++++++++++
Initializing rule chains...
1 Snort rules read
1 detection rules
0 decoder rules
0 preprocessor rules
1 Option Chains linked into 1 Chain Headers
0 Dynamic rules
+++++++++++++++++++++++++++++++++++++++++++++++++++
+-------------------[Rule Port Counts]---------------------------------------
| tcp udp icmp ip
| src 0 0 0 0
| dst 0 0 0 0
| any 0 0 1 0
| nc 0 0 1 0
| s+d 0 0 0 0
+----------------------------------------------------------------------------作了以上修改之后，下面开始真正的测试。
sudo snort -A console -q -u snort -g snort -c /etc/snort/snort.conf -i eth0随后，你可以使用另一台电脑或者开另外一个terminal使用ping命令，ping测试主机。
比如：ping localhost
你应该能在测试主机上看到相似的如下输出：
10/31-02:27:19.663643 [**] [1:10000001:1] ICMP test [**] [Priority: 0] {ICMP} 10.0.0.74 -> 10.0.0.64
10/31-02:27:19.663675 [**] [1:10000001:1] ICMP test [**] [Priority: 0] {ICMP} 10.0.0.64 -> 10.0.0.74
10/31-02:27:20.658378 [**] [1:10000001:1] ICMP test [**] [Priority: 0] {ICMP} 10.0.0.74 -> 10.0.0.64
10/31-02:27:20.658404 [**] [1:10000001:1] ICMP test [**] [Priority: 0] {ICMP} 10.0.0.64 -> 10.0.0.74
10/31-02:27:21.766521 [**] [1:10000001:1] ICMP test [**] [Priority: 0] {ICMP} 10.0.0.74 -> 10.0.0.64
10/31-02:27:21.766551 [**] [1:10000001:1] ICMP test [**] [Priority: 0] {ICMP} 10.0.0.64 -> 10.0.0.74
10/31-02:27:22.766167 [**] [1:10000001:1] ICMP test [**] [Priority: 0] {ICMP} 10.0.0.74 -> 10.0.0.64
10/31-02:27:22.766197 [**] [1:10000001:1] ICMP test [**] [Priority: 0] {ICMP} 10.0.0.64 -> 10.0.0.74
^C*** Caught Int-Signal然后你去查看/var/log/snort,你也会发现有被命令为snort.log.nnnnnn（nnnn代表数字），这些文件中包含的和屏幕上打印出来的是一样的信息。
祝贺！现在我们已经能够根据自己的规则显示警告信息了。
sudo apt-get install -y libmysqlclient-dev autoconf libtool
output unified2: filename snort.u2, limit 128
wget https://github.com/firnsy/barnyard2/archive/v2-1.13.tar.gz -O barnyard2-2-1.13.tar.gz依次执行：
tar zxvf barnyard2-2-1.13.tar.gz cd barnyard2-2-1.13 autoreconf -fvi -I ./m4
64bit和32bit机器分别执行以下：
./configure --with-mysql --with-mysql-libraries=/usr/lib/x86_64-linux-gnu --with-mysql-includes=/usr/include/ ./configure --with-mysql --with-mysql-libraries=/usr/lib/i386-linux-gnu --with-mysql-includes=/usr/include/
继续：
make sudo make install
sudo cp /usr/local/etc/barnyard2.conf /etc/snort
sudo mkdir /var/log/barnyard2 sudo chown snort.snort /var/log/barnyard2
sudo cp schemas/create_mysql /usr/src
sudo gedit /etc/snort/barnyard2.conf#227行 改为：
use snort; source /usr/src/create_mysql; show tables; exit
<span style="font-size:12px;">sudo snort -q -u snort -g snort -c /etc/snort/snort.conf -i eth0 -D</span>
<span style="font-size:12px;">sudo barnyard2 -c /etc/snort/barnyard2.conf -d /var/log/snort -f snort.u2 -w /var/log/snort/barnyard2.waldo -g snort -u snort</span><span style="font-size: 18.6666660308838px;"> </span>
--== Initialization Complete ==--
______ -*> Barnyard2 <*-
/ ,,_ \ Version 2.1.13 (Build 327)
|o" )~| By Ian Firns (SecurixLive): http://www.securixlive.com/
+ '''' + (C) Copyright 2008-2013 Ian Firns <firnsy@securixlive.com>
Using waldo file '/var/log/snort/barnyard2.waldo':
spool directory = /var/log/snort
spool filebase = snort.u2
time_stamp = 1412527313
record_idx = 16
Opened spool file '/var/log/snort/snort.u2.1412527313'
Closing spool file '/var/log/snort/snort.u2.1412527313'. Read 16 records
Opened spool file '/var/log/snort/snort.u2.1412528990'
Waiting for new data
使用ctrl+c结束。mysql -u snort -p -D snort -e "select count(*) from event"
+----------+ | count(*) | +----------+ | 4 | +----------+
cd /usr/share/oinkmaster sudo bash -c "sudo ./create-sidmap.pl /etc/snort/rules > /etc/snort/sid-msg.map"
sudo apt-get install libphp-adodb
编辑 "/etc/php5/apache2/php.ini", 找到这一行"error_reporting" ，修改它:
error_reporting = E_ALL & ~E_NOTICE
编辑/etc/apache2/apache2.conf 添加许可www/base :
-----------------------------------------------------------------------------------------------------
<Directory /var/www/html/base>
AllowOverride All
Require all granted
</Directory>
-----------------------------------------------------------------------------------------------------
sudo service apache2 restart
sudo apt-get install php-pear sudo apt-get install libwww-perl sudo apt-get install php5-gd sudo pear config-set preferred_state alpha sudo pear channel-update pear.php.net sudo pear install --alldeps Image_Color Image_Canvas Image_Graph
当下载了这6个pear包之后，我们手动安装 ( 3 + 3 dependencies ).
如下:
cd /build/buildd/php5-5.5.9+dfsg/pear-build-download ls
这里应该有6个 .tgz 包. 手动安装:
sudo tar zxf Image_Color*.tgz
sudo cp package.xml ./Image_Color*/ cd Image_Color* sudo pear install package.xml cd ..按照上面方法依次安装其余的五个包。
Image_Canvas
Numbers_Roman
Math_BigInteger
Numbers_Words
Image_Graph
BASE的安装：
cd /usr/src sudo wget http://sourceforge.net/projects/secureideas/files/BASE/base-1.4.5/base-1.4.5.tar.gz sudo tar -zxf base-1.4.5.tar.gz sudo cp -r base-1.4.5 /var/www/html/base sudo chown -R www-data:www-data /var/www/html/base sudo service apache2 restart
浏览器输入：http://localhost/base
（语言就选择默认的英文）
Step 1) 输入路径 : /usr/share/php/adodb
Step 2) Database Name : snort
Database Host : localhost
Database User Name: snort
Database Password : secret2（之前输入的）
( tick ‘Use Archive Database‘ )
Archive Database Name : archive
Archive Database Host : localhost
Archive Database User Name : snort
Archive Database Password : secret2（之前输入的）
Step 3)
Full admin name ( xxx )
[GUI password] ( Secret3 )
Full admin name ( XXXX )
Step 4) 点击 ‘ Create baseAG‘
Step 5) 点击 ‘ Now continue to Step 5 ‘ and login ( XXX/ secret3 )
然后ping主机的话，不出意外每3min就会跟新显示snort的信息。
Snort:Barnyard2+MySQL+BASE 基于Ubuntu 14.04SNORT
原文地址：http://blog.csdn.net/u011542994/article/details/46409631
