文件防篡改系統ossec搭建

 OSSEC簡要介紹： 

OSSEC 是一款開源的***檢測系統，包括了日誌分析，全面檢測，rook-kit檢測。做爲一款HIDS，OSSEC應該被安裝在一臺實施監控的系統中。另外有時候不須要安裝徹底版本的OSSEC，若是有多臺電腦都安裝了OSSEC，那麼就能夠採用客戶端/服務器模式來運行。客戶機經過客戶端程序將數據發回到服務器端進行分析。在一臺電腦上對多個系統進行監控對於企業或者家庭用戶來講都是至關經濟實用的。

環境： 

centos5.5 x86_64 
ossec-hids-2.7-beta1
10.10.10.240 ossec server 
10.10.10.141 ossec client1

下載軟件包

wget  http://www.ossec.net/files/ossec-hids-2.7-beta-1.tar.gz

1、ossec server安裝

配置源碼,使可以兼容mysql

[root@logserver src]# tar -xf ossec-hids-2.7-beta-1.tar.gz
[root@logserver src]# cd ossec-hids-2.7-beta1/
[root@logserver ossec-hids-2.7-beta1]# cd src
[root@logserver src]# make setdb
Info: Compiled with MySQL support

[root@logserver ossec-hids-2.7-beta1]# ./install.sh 

[root@logserver ossec-hids-2.7-beta1]# /var/ossec/bin/ossec-control enable database
[root@logserver ossec-hids-2.7-beta1]# mysql -u root -p
mysql>  create database ossec;
Query OK, 1 row affected (0.04 sec)

mysql> grant INSERT,SELECT,UPDATE,CREATE,DELETE,EXECUTE on ossec.* to ossecuser@ identified by 'ossecpass';
Query OK, 0 rows affected (0.10 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)

[root@logserver ossec-hids-2.7-beta1]# cd contrib/

[root@logserver contrib]# vim ossec2mysql.conf

# PARAMS USED BY  OSSEC2BASED
dbhost=localhost
database=ossecuser
debug=5
dbport=3306
dbpasswd=ossecpass
dbuser=ossec
daemonize=0
sensor=centralserver
hids_inter>

導入數據

[root@logserver contrib]# mysql -u ossecuser -p < /usr/local/src/ossec-hids-2.7-beta1/contrib/ossec2mysql.sql 

在末尾添加

  <database_output>
        <hostname>10.10.10.137</hostname>
        <username>ossecuser</username>
        <password>ossecpass</password>
        <database>ossec</database>
        <type>mysql</type>
    </database_output>
</ossec_config>

 

2.啓動ossec

[root@logserver etc]# /var/ossec/bin/ossec-control restart

添加agent key

2、ossec cilent安裝

 tar xf ossec-hids-2.7-beta-1.tar.gz

 cd ossec-hids-2.7-beta1/

 ./install.sh

-->cn

-->client

 

/usr/local/ossec/bin/manage_agents  

3、添加ossec client到ossec server

server:

/usr/local/ossec/bin/manage_agents

A

name

IP

E

001

cpoy key

q

client

/usr/local/ossec/bin/manage_agents

-->i

-->paste key

-->y

 /usr/local/ossec/bin/ossec-control start
Starting OSSEC HIDS v2.7-beta1 (by Trend Micro Inc.)...
Started ossec-execd...
Started ossec-agentd...
Started ossec-logcollector...
Started ossec-syscheckd...
Completed.
You have new mail in /var/spool/mail/root

[root@redmine src]# netstat -antup|grep ossec
udp        0      0 10.10.10.141:35928          10.10.10.240:1514           ESTABLISHED 28558/ossec-agentd

4、安裝管理界面

wget  http://www.ossec.net/files/ossec-wui-0.3.tar.gz

[root@db src]# tar xf ossec-wui-0.3.tar.gz 

[root@db src]# cd ossec-wui-0.3
[root@db ossec-wui-0.3]# ls
CONTRIB  css  htaccess_def.txt  img  index.php  js  lib  LICENSE  ossec_conf.php  README  README.search  setup.sh  site
[root@db ossec-wui-0.3]# cp -Rf * /usr/local/ossec/
[root@db ossec-wui-0.3]# cd /usr/local/ossec/

運行配置腳本

[root@db ossec]# ./setup.sh

配置ossec權限

[root@db ossec]# chgrp apache tmp/

[root@db ossec]# chmod 770 -R tmp/

[root@db ossec]#cat /etc/group

apache:x:48:ossec

 

 [root@db ossec]# yum install -y php.x86_64   php-cli.x86_64  php-devel.x86_64 httpd

yum install -y httpd php

添加虛擬目錄

[root@db ~]# cat /etc/httpd/conf.d/vdoc.conf
Alias /ossec/ "/usr/local/ossec/"
<Directory "/usr/local/ossec/">
    Options Indexes FollowSymLinks
    AllowOverride None
    Order allow,deny
 

 Allow from all
#  Order deny,allow
#  Deny from all
#  Allow from 127.0.0.1
   AuthName "OSSEC AUTH"
   AuthType Basic
   AuthUserFile /usr/local/ossec/.htpasswd
   Require valid-user

</Directory> 

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