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49.cacti监控工具
cacti监控工具
Cacti是一款使用PHP语言开发的性能与流量监测工具,实际上cacti是一款web界面的管理工具,通过调用net-SNMP工具来采集检测数据,并结合RRDtool工具记录数据并绘制图片。
监控端搭建cacti步骤:
v 部署LAMP平台
# yum -y install zlib freetype libjpeg fontconfig gd libxml2 php-gd
# yum -y install httpd mysql mysql-server mysql-devel php php-mysql
v 安装net-SNMP,RRDtool等软件
# yum -y install net-snmp net-snmp-utils
#service snmpd restart
# tar xzvf rrdtool-1.4.8.tar.gz
# cd rrdtool-1.4.8
# yum -y install cairo-devel zlib libxml2 libxml2-devel glib2 glib2-devel libpng libpng-devel freetype freetype-devel libart_lgpl pango pango-devel pear pear-devel perl-CPAN
#./configure --prefix=/usr/local/rrdtools
#make && make install
v 部署cacti,设置数据库连接
# tar xzvf cacti-0.8.8b.tar.gz
# mv cacti-0.8.8b /var/www/html/cacti
#useradd cacti
# chown -R cacti.cacti /var/www/html/cacti/
#service mysqld restart
#mysqladmin -u root password ‘123’
#mysql -u root -p123
mysql> CREATE DATABASE cacti DEFAULT CHARACTER SET utf8;
Mysql>GRANT all ON cacti.* TO ‘cacti‘@‘localhost‘ identified by ‘123‘;
mysql> quit;
# mysql -u cacti -p cacti < /var/www/html/cacti/cacti.sql
注:Mysql -u 用户名 -p 库名或表名 < /备份路径/文件名:恢复操作
# vim /var/www/html/cacti/include/config.php
修改相关内容:
$database_type = "mysql";
$database_default = "cacti";
$database_hostname = "localhost";
$database_username = "cacti";
$database_password = "123";
$database_port = "3306";
$database_ssl = false;
# vim /etc/httpd/conf/httpd.conf
修改相关参数:
ServerName www.example.com:80
DocumentRoot "/var/www/html/cacti"
<Directory "/var/www/html/cacti">
Options None
AllowOverride None
Order allow,deny
Allow from all
</Directory>
DirectoryIndex index.php index.html index.html.var
v 访问cacti网页,初始化cacti
v 被控端配置
# yum -y install net-snmp lm_sensors
#vim /etc/snmp/snmpd.conf
修改内容:
com2sec notConfigUser 1.1.1.130 public
access notConfigGroup "" any noauth exact all none none
view all included .1 80
#service snmpd restart
注:修改的第一行表示:允许谁来监控我,设置相应的cacti监控端地址
修改的第二行表示:all表示开放所有的SNMP查询权限(默认是systemview)
修改的第三行表示:.1表示SNMP所有的查询
v 使用Cacti采集被监控端信息
#/usr/bin/php /var/www/html/cacti/poller.php
v 设置定时计划,每5分钟采集一次
#crontab -u cacti -e
内容:
*/5**** /usr/bin/php /var/www/html/cacti/poller.php >/dev/null
49.cacti监控工具