cacti安装/配置
首先要把mysql和php还有apache/nginx安装好，这些程序的安装配置不再赘述，可以参考http://www.cnblogs.com/shaoya/archive/2012/12/19/2825295.html。一、安装RRDTool和SNMP
安装RRDTool
#yum -y install rrdtool
启动rrdtool服务并且加入启动列表
#service rrdcached start
#chkconfig rrdcached on
安装snmp支持工具
#yum -y install net-snmp
#yum -y install net-snmp-utils
启动snmpd服务并且加入启动列表
#service snmpd start
#chkconfig snmpd on
二、
然后下载cacti，到这里去下载http://www.cacti.net/downloads/
下载当前最新版wget http://www.cacti.net/downloads/cacti-0.8.8a.tar.gz
和cacti-spine，http://www.cacti.net/downloads/spine/
下载当前最新版cacti-spine,wget http://www.cacti.net/downloads/spine/cacti-spine-0.8.8a.tar.gz
三、
安装cacti-spine
1.首先安装几个编译cacti-spine需要的devel包:
yum install net-snmp-devel
yum install mysql-devel
yum install openssl-devel
2.安装gcc和libtool
yum install gcc
yum install libtool
3.下载cactid并解压:
tar -xf cacti-spine-0.8.8a.tar.gz
编译安装:
cd cacti-spine-0.8.8a
aclocal
libtoolize --force
autoheader
autoconf
automake
./configure
make
make install
4.安装好以后，我们需要再配置一下：
cp /usr/local/spine/etc/spine.conf.dist /etc/spine.conf
vim /etc/spine.conf
DB_Host localhost
DB_Database cacti
DB_User cactiuser
DB_Pass cactipw
DB_Port 3306
启动一下看看
#/usr/local/spine/bin/spine
一般显示
SPINE: Using spine config file
SPINE: Version 0.8.8a starting
SPINE: Time: 0.1190 s, Threads: 5, Hosts: 2
5.最后，等cacti安装完之后在cacti的web配置界面选择setting
settings->paths->Spine Poller File Path
settings->poller->Poller Type
console->settings->poller->Maximum Threads per Process
save完成。
四、
我们开始安装正主cacti
①配置
解压并放到apache文档目录(/var/www/html)
#tar -xf cacti-0.8.8a.tar.gz
#mv cacti-0.8.8a /var/www/html/cacti
编辑CentOS cacti配置文件，连接MySQL服务的用户名，密码，端口等。
#cd /var/www/html
#vi cacti/include/config.php
$database_type = “mysql”;
$database_default = “cacti”;
$database_hostname = “localhost”;
$database_username = “cacti”;
$database_password = “cacti”;
$database_port = “3306″;
②添加计划任务(使cacti每5分钟获得一次数据)
#crontab -e */1 * * * * /usr/bin/php /var/www/html/cacti/poller.php > /dev/null 2>&1 //让系统每1分钟收集
③数据库配置
创建cacti数据库
#mysql
msyql>CREATE DATABASE `cacti` DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci;
导入cacti.sql
#mysql -u root -p cacti < /var/www/html/cacti/cacti.sql
现在在浏览器输入http://你的域名/cacti/install
根据提示一路安装下去
五、完成cacti的安装
1）.在浏览器中输入：http://www.yourdomain.com/cacti/
默认用户名：admin 密码：admin
2）.更改密码
3）.设置cacti用到的命令路径
snmpwalk Binary Path /usr/local/ bin/snmpwalk
snmpget Binary Path /usr/local/ bin/snmpget
RRDTool Binary Path /usr/local/ bin/rrdtool
PHP Binary Path /usr/local/bin/php
Cacti Log File Path /usr/local/apache/htdocs/cacti/log/cacti.log
Cactid Poller File Path /usr/local/cactid/cactid
4）.进入cacti后需确认Console>Settings下的各项路径和配置正确：
主要是
Console>Settings>General
Console>Settings>Paths
Console>Settings>Poller
然后做如下修改：
在console->settings->General->SNMP Defaults中将SNMP Version的Version1修改为Version2，点击“Save”保存。
在console->settings->Paths->Alternate Poller Path中将Spine Poller File Path的路径填写上：/usr/local/spine/bin/spine
在这下面的Structued RRD Path的Structured RRA Path (/host_id/local_data_id.rrd)可选可不选，然后点击“Save”保存。
在console->settings->Poller->General中将Poller Type修改为spine，将Poller Interval和Cron Interval修改为Every Minute，点击“Save”保存。
全部完毕！
参考：
http://blog.sina.com.cn/s/blog_4e424e2101000b5y.html
http://hbzylm.blog.iyunv.com/613851/901886
http://blog.163.com/szy8706@yeah/blog/static/627131852011894474045/
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