開源監(jiān)控解決方案Nagios+Cacti+PNP4Nagios+NConf+NDOUtils+Nagvis（五）cacti安裝

1.安裝LAMP環(huán)境
這里就不做介紹，網(wǎng)上一堆的相關(guān)文檔，還有很多牛人寫的自動化安裝腳本

2.安裝rrdtool
yum install cairo-devel libxml2-devel pango pango-devel rrdtool –y

3.安裝SNMP
操作系統(tǒng)一般自帶SNMP，如果沒有即安裝

yum -y install net-snmp net-snmp-libs net-snmp-utils

4.安裝Cacti

（1）下載Cacti
#wget http://www.cacti.net/downloads/cacti-0.8.8b.tar.gz

#tar -zxfv cacti-0.8.8b.tar.gz

#mv cacti-0.8.8b /var/www/html/cacti

#cd /var/www/html/cacti/

（2）初始化數(shù)據(jù)庫
創(chuàng)建數(shù)據(jù)庫
mysql> create database nagios default character set utf8;

mysql> grant all privileges on nagios.* to 'nagios'@'localhost' identified by 'XXXX' with grant option;

mysql> grant all privileges on nagios.* to 'nagios'@'%' identified by 'XXXX' with grant option;

mysql> flush privileges;

初始化數(shù)據(jù)庫
#mysql -unagios -p nagios<cacti.sql

（3）配置連接信息

#cd /var/www/html/cacti/
#vim include/config.php

$database_type = "mysql";
$database_default = "nagios";
$database_hostname = "127.0.0.1";
$database_username = "nagios";
$database_password = "XXXX";
$database_port = "3306";
$database_ssl = false;

（4）設(shè)置目錄權(quán)限
# useradd cactiuser
# chown -R cactiuser rra/ log/

（5）增加定時任務(wù)
#echo "*/5 * * * * cactiuser php /var/www/html/cacti/poller.php > /dev/null 2>&1">>/etc/crontab
#每5分鐘以cactier去抓取數(shù)據(jù)繪圖，這個時間5分鐘應(yīng)該是最小間隔了，不建議修改為更小值。
#service crond restart
#service httpd restart

訪問 http://172.18.1.113/cacti

剛開始訪問沒有數(shù)據(jù)圖可以執(zhí)行以下操作，一定要使用cactiuser，否則正常定時任務(wù)沒有權(quán)限寫入文件
# su - cactiuser
#php  /var/www/html/cacti/poller.php > /dev/null 2>&1