Linux 9系统下构建小型入侵检测系统

Linux 9系统下构建小型入侵检测系统 - 系统安全 - 电脑教程网

Linux 9系统下构建小型入侵检测系统

日期:2007-03-22   荐:
一、系统平台
  Redhat9.0发行版, 安装gcc 及相关库文件,建议不要安装Apache,PHP,mysql,我们将用源码编译安装。基于安全方面的考虑,可以设置一下iptables只允许SSH和WWW访问。
  二、软件
  MySQL4.0.12 http://mysql.secsup.org
  Snort2.0.0 http://www.snort.org
  Apache2.0.45 http://www.apache.org
  PHP4.3.1 http://www.php.net
  ADODBv3.30 http://phplens.com
  Acid0.9.6b23 http://acidlab.sourceforge.net
  Zlib1.1.4 http://flow.dl.sourceforge.net
  JPGraph1.11 http://jpgraph.techuk.com
  LibPcap0.7.2 http://www.tcpdump.org
  建议到这个站点下载http://ftp.cdut.edu.cn/pub/linux/NEW/
  也可以到http://www.rpmfind.com下载相关的xx.src.rpm编译安装。如若安装了rpm包,可以强行将其反安装rpm -e -nodeps xx.xx
  三、安装(建议将所有的包文件考到同一目录)
  1.安装zlib1.1.4
  tar -xzvf zlib-xx.tar.gz
  cd zlib-xx
  /configure;make test
  make install
  cd ..
  2.安装LibPcap0.7.2
  tar -xzvf libpcap.tar.gz
  cd libpcap-xx
  /configure
  make
  make install
  cd ..
  3.安装MySQL4.0.12
  3.1创建mysql组和mysql用户
  groupadd mysql
  useradd -g mysql mysql
  修改/root下的.bash_profile的这一行:
  PATH=?$PATH:?$HOME/bin 为
  PATH=?$PATH:?$HOME/bin:/usr/local/mysql/bin
  3.2安装mysql
  tar -xzvf mysql-xx.tar.gz
  cd mysql-xx
  /configure --prefix=/usr/local/mysql
  make
  make install
  cd scripts
  /mysql_install_db
  chown -R root /usr/local/mysql
  chown -R mysql /usr/local/mysql/var
  chgrp -R mysql /usr/local/mysql
  cd ./support-files/my-medium.cnf /etc/my.cnf
  向/etc/ld.so.conf中加入两行:/usr/local/mysql/lib/mysql
  /usr/local/lib
  载入库,执行
  ldconfig -v
  3.3测试mysql是否工作:
  cd /usr/local/mysql/bin/
  /mysqld_safe --user=mysql&
  #ps -ef grep mysql
  看mysql_safe是否工作
  3.4设置mysql为自启动:
  将mysql安装目录下的support-files目录中的

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  mysql.server文件拷到/etc/init.d目录
  cp mysql.server /etc/init.d/mysql
  chmod 755 /etc/init.d/mysql
  创建硬链接:
  cd /etc/rc3.d(文本方式启动)
  ln -s /etc/init.d/mysql S85mysql
  ln -s /etc/init.d/mysql K85mysql
  cd /etc/rc5.d (图形方式启动)
  ln -s /etc/init.d/mysql S85mysql
  ln -s /etc/init.d/mysql K85mysql
  4.安装Apache2.0.45和PHP4.3.1
  tar -zxvf httpd-2.0.xx.tar.gz
  cd httpd_2.xx.xx
  /configure --prefix=/www --enable-so
  注:apache根目录为 /www
  make
  make install
  cd ..
  tar -zxvf php-4.3.x.tar.gz
  cd php-4.3.x
  /configure --prefix=/www/php --with-apxs2=/www/bin/apxs --with-config- filepath=/www/php --enable-sockets --with-mysql=/usr/local/mysql --with-zlibdir=/
  usr/local --with- gd
  注意:这些为一行,中间不要有回车。
  cp php.ini-dist /www/php/php.ini
  编辑httpd.conf(/www/conf):
  加入两行
  LoadModule php4_module modules/libphp4.so
  AddType application/x-httpd-php .php
 httpd.conf中相关内容如下:
  #
  # LoadModule foo_module modules/mod_foo.so
  LoadModule php4_module modules/libphp4.so
  # AddType allows you to tweak mime.types without actually editing it, or ?$
  # make certain files to be certain types.
  #
  AddType application/x-tar .tgz
  AddType image/x- icon .ico
  AddType application/x-httpd-php .php
  设置Apache为自启动:
  cp /www/bin/apachectl /etc/init.d/httpd
  cd /etc/rc3.d
  ln -s /etc/init.d/httpd S85httpd
  ln -s /etc/init.d/httpd K85httpd
  cd /etc/rc5.d
  ln -s /etc/init.d/httpd S85httpd
  ln -s /etc/init.d/httpd K85httpd
  测试一下 PHP:
  cd /etc/init.d
  /httpd start
  在/www/htdocs下建立文件 test.php
  cd /www/htdocs
  vi test.php
  加入
  lt;?php
  hpinfo();
  ?>
  用浏览器访问http://IP_address/test.php,成功的话,出现一些
  系统,apache,php信息
  5.安装 Snort2.0
  5.1建立snort配置文件和日志目录
  mkdir /etc/snort
  mkdir /var/log/snort
  tar -zxvf snort-2.x.x.tar.gz
  cd snort-2.x.x
  /configure --with-mysql=/usr/local/mysql
  make
  make install
  5.2安装规则和配置文件
  cd rules (在snort安装目录下)
  cp * /etc/snort
  cd ./etc
  cp snort.conf /etc/snort
  cp *.config /etc/snort
  5.3修改snort.conf(/etc/snort/snort.conf)
  var HOME_NET 10.2.2.0/24 (修改为你的内部网网络地址,我的是
  192.168.0.0/24)
  var RULE_PATH ./rules 修改为 var RULE_PATH /etc/snort/
  改变记录日志数据库:
  output database: log, mysql, user=root passWord=your_password
  dbname=snort host=localhost
  5.4设置snort为自启动:
  在snort安装目录下
  cd /contrib
  cp S99snort /etc/init.d/snort
  vi /etc/init.d/snort
  修改snort如下:
  CONFIG=/etc/snort/snort.conf
  #SNORT_GID=nogroup (注释掉)
  #8194;$SNORT_PATH/snort -c ?$CONFIG -i ?$IFACE ?$OPTIONS
  (去掉原文件中的 -g ?$SNORT_GID )
  chmod 755 /etc/init.d/snort

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  cd /etc/rc3.d
  ln -s /etc/init.d/snort S99snort
  ln -s /etc/init.d/snort K99snort
  cd /etc/rc5.d
  ln -s /etc/init.d/snort S99snort
  ln -s /etc/init.d/snort K99snort
 四.在mysql中建立数据库
  /usr/local/mysql/bin/mysql
  mysql>SET PASSWORD FOR root@localhost=PASSWORD('your_password');
  mysql>create database snort;
  mysql>grant INSERT,SELECT on root.* to snort@localhost;
  mysql>quit;
  进入snort安装目录:/usr/local/mysql/bin/mysql -p
  gt;Enter password:
  安装DB表:(在contrib目录)
  zcat snortdb-extra.gz /usr/local/mysql/bin/mysql -p snort
  进入mysql数据库,看看snort数据库中的表:
  /usr/local/mysql/bin/mysql -p
  gt;Enter password:
  mysql>show databases;
  +------------+
   Database
  +------------+
   mysql
   snort
   test
  +------------+
  3 rows in set (0.00 sec)
  mysql>use snort;
  mysql>show tables; 将会有这些:
  +------------------+
   Tables_in_snort
  +------------------+
   data
   detail
   encoding
   event
   flags
   icmphdr
   iphdr
   opt
   protocols
   reference
   reference_system
   schema
   sensor
   services
   sig_class
   sig_reference
   signature
   tcphdr
   udphdr
  +------------------+
  19 rows in set (0.00 sec)
  mysql>exit
 五.安装配置Web接口
  安装JPGraph1.11
  cp jpgraph-1.11.tar.gz /www/htdocs
  cd /www/htdocs
  tar -xzvf jpgraph-1.xx.tar.gz
  rm -rf jpgrap-1.xx.tar.gz
  cd jpgraph-1.11
  rm -rf README
  rm -rf QPL.txt
  安装ADODB:
  cp adodb330.tgz /www/htdocs/
  cd /www/htdocs
  tar -xzvf adodb330.tgz
  rm -rf adodb330.tgz
  安装配置Acid:
  cp acid-0.0.6b23.tar.gz /www/htdocs
  cd /www/htdocs
  tar -xvzf acid-0.9.6b23.tar.gz
  rm -rf acid-0.9.6b23.tar.gz
  cd /www/htodcs/acid/
  编辑acid_conf.php,修改相关配置如下:
  #8194;$DBlib_path = "/www/htdocs/adodb";
  /* The type of underlying alert database
  *
  * MySQL : "mysql"
  * PostgresSQL : "postgres"
  * MS SQL Server : "MSSQL"
  */
  #8194;$DBType = "mysql";
  /* Alert DB connection parameters
  * - ?$alert_dbname : MySQL database name of Snort alert DB
  * - ?$alert_host : host on which the DB is stored
  * - ?$alert_port : port on which to Access the DB
  * - ?$alert_user : login to the database with this user
  * - ?$alert_password : password of the DB user
  *
  * This information can be gleaned from the Snort database
  * output plugin configuration.
  */
  #8194;$alert_dbname = "snort";

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  #8194;$alert_host = "localhost";
  #8194;$alert_port = "";
  #8194;$alert_user = "root";
  #8194;$alert_password = "Your_Password";
  /* Archive DB connection parameters */
  #8194;$archive_dbname = "snort";
  #8194;$archive_host = "localhost";
  #8194;$archive_port = "";
  #8194;$archive_user = "root";
  #8194;$archive_password = "Your_Password ";
  And a little further down
  #8194;$ChartLib_path = "/www/htdocs/jpgraph-1.11/src";
  /* File format of charts ('png', 'jpeg', 'gif') */
  #8194;$chart_file_format = "png";
  进入web界面:
  http://yourhost/acid/acid_main.php
  点"Setup Page"链接 ->Create Acid AG
  访问http://yourhost/acid将会看到ACID界面。
  六.测试系统
  重启系统或者直接启动相关后台程序:
  /etc/init.d/mysql restart
  /etc/init.d/snort start
  /etc/init.d/httpd start
  利用nmap,nessus,CIS或者X-scan对系统进行扫描,产生告警纪录。
  http://yourhost/acid 察看纪录。
  至此,一个功能强大的IDS配置完毕。各位可以利用web界面远程登陆,监控主机所处局域网,同时安装phpMyAdmin对mysql数据库进行操控。

(出处:http://www.sheup.com)


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(出处:http://www.sheup.com)


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>(出处:http://www.sheup.com)


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