Cacti安装教程

CentOS 6.0
架设流量监控及集中日志系统

第一章、cacti的安装

1、 系统的基本设置
2、 设置主机名
3、 [root@localhost ~]# vi /etc/sysconfig/network
4、 [root@localhost ~]# exit
5、 重新登陆
6、 [root@GZ-Cacti ~]#
7、 安装screen后台运行程序
yum -y install screen
8、 安装优秀的编辑器vim
yum -y install vim
9、 执行screen -S cacti进程进行安装程序防止断开远程导致安装中断

10、 cacti所需组件
http
Mysql
mysql-server
Php
Php-mysql
Php-snmp
php-cli
php-common
Perl-DBD-MySQL
Php-pdo
rrdtool
Net-snmp
Net-snmp-libs
Net-snmp-utils
rrdtool
yum安装这些组件
yum -y install httpd php php-mysql php-snmp php-cli php-common mysql mysql-server net-snmp net-snmp-libs net-snmp-utils php-pdo perl-DBD-MySQL rrdtool

#下载cacti
[root@GZ-cacti ~]# cd /home/
[root@GZ-cacti home]# wget http://www.cacti.net/downloads/cacti-0.8.7g.tar.gz

#解压cacti
[root@GZ-cacti home]# tar xvf cacti-0.8.7g.tar.gz
#进入cacti文件夹，将里面的文件移动到/var/www/html/
[root@GZ-cacti home]# cd cacti-0.8.7g
[root@GZ-cacti cacti-0.8.7g]#
[root@GZ-cacti cacti-0.8.7g]# mv * /var/www/html/
#启动apache及mysql服务
[root@GZ-cacti cacti-0.8.7g]# /etc/init.d/httpd restart
Stopping httpd: [ OK ]
Starting httpd: httpd: Could not reliably determine the server's fully qualified domain name, using 61.140.3.66 for ServerName
[ OK ]
[root@GZ-cacti cacti-0.8.7g]# /etc/init.d/mysqld restart
Stopping mysqld: [ OK ]
Starting mysqld: [ OK ]
[root@GZ-cacti cacti-0.8.7g]#

#并将apache、mysql及network加入自启动

# chkconfig --level 35 httpd on
# chkconfig --level 35 mysqld on
#chkconfig network on

建立数据库
mysql> create database cacti;
mysql> grant all privileges on cacti.* to cactiuser@localhost identified by 'cacti' with grant option;
mysql>flush privileges;

导入cacti数据库
[root@GZ-cacti cacti-0.8.7g]# mysql -h localhost -u cactiuser -p cacti </var/www/html/cacti.sql
Enter password:
[root@GZ-cacti cacti-0.8.7g]#

修改cacti配置文件

$database_type = "mysql";
$database_default = "cacti";
$database_hostname = "localhost";
$database_username = "cactiuser";
$database_password = "cacti";
$database_port = "3306";

#$cacti_session_name = "Cacti";

暂时关闭防火墙
/etc/init.d/iptables stop

检查SELinux现时况态

要知到你现在是否使用 SELinux:

# getenforce
enforcing

关闭selinux
修改档案/etc/sysconfig/selinux

# This file controls the state of SELinux on the system.
# SELINUX= can take one of these three values:
# enforcing - SELinux security policy is enforced.
# permissive - SELinux prints warnings instead of enforcing.
# disabled - SELinux is fully disabled.
SELINUX=enforcing

# SELINUXTYPE= type of policy in use. Possible values are:
# targeted - Only targeted.NETwork daemons are protected.
# strict - Full SELinux protection.
SELINUXTYPE=targeted

把 SELINUX设定为disable, 下次启动系统后将会停止SElinux。

# getenforce
disable

进入安装界面
http://（cacti-ip）/install/index.php
确保每个路径都正确点击下一步完成安装

配置snmp
vi /etc/snmp/snmp.conf
（7）配置snmp
vi /etc/snmp/snmp.conf
#将下边这行中的default
com2secnotConfigUser default public

#改为127.0.0.1
com2secnotConfigUser 127.0.0.1 Cacti

#将下边这行中的systemview
access notConfigGroup "" any noauth exact systemview none none

#改为all
access notConfigGroup "" any noauth exact all none none

#将下边这行的注释“#”号去掉
#view all included .1 80

#重启snmpd服务
service snmpd restart

用这个命令进行测试能抓取信息为配置正确
snmpwalk -v 1 localhost -c Cacti

安装ntpdate并且停用自动更新
yum -y install ntpdate
/etc/init.d/ntpdate stop
chkconfig ntpdate off

以cacituser用户增加入一个计划任务，使得 cacti 每五分钟生成一个监控图表。
crontab -e

#加入如下内容。注意poller.php的路径
*/5 * * * * php /var/www/html/poller.php > /dev/null 2>&1

时间同步命令，每十分钟跟因特网同步时钟
*/10 * * * * ntpdate 210.72.145.44 > /dev/null 2>&1
并将rra和log文件夹赋予cactiuser以读写权限，poller.php文件赋予cactiuser用户运行权限
[cactiuser@localhost html]$ chmod 777 rra
[cactiuser@localhost html]$ chmod 777 log
[cactiuser@localhost html]$ chmod 755 poller.php

至此cacti安装完成，稍等五分钟刷新一下就可以出图

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