cacti 简单架构

环境：rhel6.4 x86—64 selinux and iptables disables
参考网页： http://docs.cacti.net/manual:088:1_installation.1_install_unix snmp配置： http://www.cyberciti.biz/nixcraft/linux/docs/uniqlinuxfeatures/mrtg/mrtg_config_step_3.php
1.处理依赖性;
yum install httpd php php-mysql php-gd php-xml wget patch mysql-server rrdtool -y
yum install net-snmp* -y
利用rpm -qa | gerp php查看相应的版本，注意版本必须一致，只能高，不能低，此时是php-5.3.3-22.el6.x86_64

在6.4 中没有php-snmp ,下载http://rpmfind.net/linux/rpm2html/search.php?query=php-snmp（5.3.3-22）
yum localinstall php-snmp-5.3.3-22.el6.x86_64.rpm

编写 vim /var/www/html/index.php
{
<?php
phpinfo()
?>
}
在网页中http://localhost/index.php
使用Ctrl+F查询相应的模块是否安装

配置php
vim /etc/php.ini
{
safe_mode = Off
date.timezone = Asia.Shanghai
file_uploads = On
}
查看php相应模块.cd /etc/php.d
cat mysql.ini
{
extension=mysql.so
}

cat snmp.ini
{
extension=snmp.so
}

配置snmp
vi /etc/snmp/snmpd.conf
{
找到：com2sec notConfigUser default public
替换为:
com2sec local localhost public
com2sec mynetwork 192.168.0.0/24 public
找到:group notConfigGroup v1 notConfigUser
group notConfigGroup v2c notConfigUser
替换为：
group MyRWGroup v1 local
group MyRWGroup v2c local
group MyRWGroup usm local
group MyROGroup v1 mynetwork
group MyROGroup v2c mynetwork
group MyROGroup usm mynetwork

找到：view systemview included .1.3.6.1.2.1.1
view systemview included .1.3.6.1.2.1.25.1.1
注意在第二行的25前加“1.“
最后是：
view systemview included .1.3.6.1.2.1.1
view systemview included .1.3.6.1.2.1.1.25.1.1

view all included .1 80

找到：
access notConfigGroup "" any noauth exact systemview none none
替换为：access MyROGroup "" any noauth exact all none none
access MyRWGroup "" any noauth exact all all none

找到：syslocation Unknown (edit /etc/snmp/snmpd.conf)
syscontact Root (configure /etc/snmp/snmp.local.conf)

改为：
syslocation RHEL6.4
syscontact Root <root@localhost>
}

chkconfig snmpd on
service snmpd start
检测：
snmpwalk -v 1 -c public localhost IP-MIB::ipAdEntIfIndex

配置cacti
下载：cacti-0.8.8b.tar.gz
tar zxf cacti-0.8.8b.tar.gz -C /var/www/html/
mv cacti-0.8.8b cacti

配置mysql
/etc/init.d/mysqld start
mysql_secure_installation //password=westos
mysqladmin -pwestos create cacti
mysql -uroot -pwestos cacti < /var/www/html/cacti/cacti.sql
mysql -pwestos
>grant all on cacti.* to cacti@localhost identified by 'cacti';
>flush privileges;
>quit

vim /var/www/html/cacti/include/config.php
{
$database_type = "mysql";
$database_default = "cacti";
$database_hostname = "localhost";
$database_username = "cacti";
$database_password = "cacti";
$database_port = "3306";
$database_ssl = false;

$url_path = "/cacti/";

$cacti_session_name = "Cacti";

}

创建cacti用户
cd /var/www/html/cacti
useradd cacti
chown -R cacti rra log

su - cacti
crontab -e
{
*/5 * * * * php /var/www/html/cacti/poller.php > /dev/null 2>&1
}

本文现在没有添加任何扩展模块，后续会加上，并且与nagios整合，实现系统更加健全的监控。