安装cacti

操作介绍如下：

http://foreveryan.blog.51cto.com/3508502/775558

安装如下：

英文地址：http://www.cyberciti.biz/faq/fedora-rhel-install-cacti-monitoring-rrd-software/

1:安装关联软件

yum install mysql-server mysql php-mysql php-pear php-common php-gd php-devel php php-mbstring php-cli php-snmp php-pear-Net-SMTP php-mysql httpd

yum源更换：http://www.cnblogs.com/tommyli/p/3179753.html

yum源的epel：https://fedoraproject.org/wiki/EPEL/zh-cn

yum命令：http://www.cyberciti.biz/faq/rhel-centos-fedora-linux-yum-command-howto/

2：配置mysql

mysqladmin -u root password NEWPASSWORD

如何更改mysql的root密码：http://www.cyberciti.biz/faq/mysql-change-root-password/

3：创建cacti数据库

mysql -u root -p -e 'create database cacti'

创建账户{u:cacti p:zYn95ph43zYtq}

mysql -u root -p
GRANT ALL ON cacti.* TO cacti@localhost IDENTIFIED BY 'zYn95ph43zYtq';
FLUSH privileges;
\q

4：安装snmpd

yum install net-snmp-utils php-snmp net-snmp-libs

修改snmpd的配置

vi /etc/snmp/snmpd.conf

添加如下选项

com2sec local     localhost           public
group MyRWGroup v1         local
group MyRWGroup v2c        local
group MyRWGroup usm        local
view all    included  .
access MyRWGroup ""      any       noauth    exact  all    all    none
syslocation Unknown (edit /etc/snmp/snmpd.conf)
syscontact Root  (configure /etc/snmp/snmp.local.conf)
pass .1.3.6.1.4.1.4413.4. /usr/bin/ucd5820stat

开启snmpd服务

/etc/init.d/snmpd start
chkconfig snmpd on

确认下服务运行

snmpwalk -v  -c public localhost IP-MIB::ipAdEntIfIndex

可能的输出

IP-MIB::ipAdEntIfIndex.10.10.29.68 = INTEGER:
IP-MIB::ipAdEntIfIndex..yy.zz.eee = INTEGER:
IP-MIB::ipAdEntIfIndex.127.0.0.1 = INTEGER: 

5：安装cactl{yum要epel支持，见小节1，否则找不到这个安装包}

yum install cacti

初始化cactl数据库

rpm -ql cacti | grep cacti.sql

可能的输出

/usr/share/doc/cacti-0.8.7d/cacti.sql

初始化（版本可能和我的不一样）

mysql -u cacti -p cacti < /usr/share/doc/cacti-0.8.7d/cacti.sql

修改cacti数据库配置

vi /etc/cacti/db.php

替换

$database_type = "mysql";
$database_default = "cacti";
$database_hostname = "localhost";
$database_username = "cacti";
$database_password = "zYn95ph43zYtq";
$database_port = "";

修改httpd的配置

vi /etc/httpd/conf.d/cacti.conf

替换

Alias /cacti    /usr/share/cacti

<Directory /usr/share/cacti/>
        Order Deny,Allow
        Deny from all
        Allow from 10.0.0.0/
</Directory>

启动httpd服务

service httpd restart

创建cacti cronjob

vi /etc/cron.d/cacti

去掉第一行的注释

*/ * * * *     cacti   /usr/bin/php /usr/share/cacti/poller.php > /dev/null >&

浏览cacti

http://your.server.ip.address/cacti/

第一次强制修改密码的，初始账号和密码都是admin

6：如何创建snmp数据采集源

：点击Devices
：选择Localhost
：选定SNMP（下面可选snmp的版本）
4：save

7：如何创建snmp图

：Click on "Create Graphs for this Host" link on top right side.
：Select SNMP - Interface Statistics
：Select a graph type (such as In/Out bytes with total bandwidth)
：Finally, click on Create button.

8：模版地址

http://www.percona.com/downloads/percona-monitoring-plugins/1.0.3/