搭建Cacti监控系统（二）

zhendeaini123

http://blog.运维网.com/editor/icons/etc_19.gif 所需软件包下载：http://down.运维网.com/data/715338

安装配置cacti
web根目录：/usr/local/nginx/html/

2.1 安装本机snmp相关服务
[root@cacti~]# yum install net-snmp net-snmp-devel net-snmp-libs net-snmp-utils
[root@cacti html]# chkconfig --level 35 snmpdon
[root@cacti html]#  service snmpd start
Starting snmpd:                                            [  OK  ]

[root@cacti html]# vim /etc/snmp/snmpd.conf
将default修改为127.0.0.1
com2sec notConfigUser  127.0.0.1   public

将其中62行的systemview改为all即可
access notConfigGroup ""     any       noauth    exact all none none

启用85行：view all included .1 80

2.2、安装rrdtool
（1）检查并安装相关依赖包
[root@cactihtml]# yum -y install cairo-devel libxml2-devel pango-devel pango libpng-develfreetype freetype-devel libart_lgpl-devel pear pear-devel zlib libpng freetypelibart_lgpl libart_lgpl-devel libxml* pango*

（2）源码安装rrdtool
[root@cacti ~]# tar -zxvfrrdtool-1.4.7.tar.gz
[root@cacti ~]# cd rrdtool-1.4.7
[root@cacti rrdtool-1.4.7]#  ./configure --prefix=/usr/local/rrdtool
[root@cacti rrdtool-1.4.7]# make &&make install

2.3、解压cacti，并移动到web目录下
[root@cacti ~]# tar zxvf cacti-0.8.8a.tar.gz
[root@cacti ~]# mv cacti-0.8.8a/usr/local/nginx/html/cacti

2.4、在MySQL中创建数据库cacti
建立数据库cacti，并增加对该数据库拥有所有权限的用户名cacti，该用户密码为：cacti。
[root@cacti ~]# /usr/local/mysql/bin/mysqladmin -u root password 123456
[root@cacti~]# /usr/local/mysql/bin/mysql -uroot -p123456
mysql>create database cacti;
QueryOK, 1 row affected (0.02 sec)

mysql>grant all on cacti.* to cacti@localhost identified by 'cacti';
QueryOK, 0 rows affected (0.02 sec)

mysql>grant all on cacti.* to cacti@127.0.0.1 identified by 'cacti';
QueryOK, 0 rows affected (0.00 sec)

mysql>flush privileges;
QueryOK, 0 rows affected (0.03 sec)

2.5、创建系统用户cacti（根据情况决定是否创建用户）
[root@cacti~]# useradd cacti
[root@cacti~]# echo "cacti" | passwd --stdin cacti
Changing password for user cacti.
passwd: all authentication tokens updatedsuccessfully.

2.6、例行性排程设置
[root@cacti ~]# crontab -e
*/1 * * ** /usr/local/php/bin/php /usr/local/nginx/html/cacti/poller.php > /dev/null

2.7、修改cacti目录权限
[root@cacti html]# chown -R nginx:nginxcacti/
[root@cacti html]# chmod 777 cacti/rra -R
[root@cacti html]# chmod 777 cacti/log -R


2.8、导入数据库到MySQL
[root@cacti html]# mysql  -ucacti -pcacti cacti Data Source -> 选择没有图像的数据源 -> Turn On Data Source Debug MTurnode
复制调试命令到监控端以cacti用户执行
执行后会生成rrd文件
http://blog.运维网.com/pmghong/../attachment/201303/112202755.jpg
[root@cactirra]# ls
localhost_load_1min_5.rrd    localhost_mem_swap_4.rrd  localhost_users_6.rrd
localhost_mem_buffers_3.rrd  localhost_proc_7.rrd
p>
解决办法：
Console-> Data Source -> 选择没有图像的数据源 -> Turn On Data Source Debug MTurnode
复制调试命令到监控端以cacti用户执行
执行后会生成rrd文件
http://blog.运维网.com/pmghong/../attachment/201303/112304886.jpg
[root@cactirra]# ls
localhost_load_1min_5.rrd    localhost_mem_swap_4.rrd  localhost_users_6.rrd
localhost_mem_buffers_3.rrd  localhost_proc_7.rrd

选择 Turn Off Data Source Debug MTurnode
随后查看监控界面，就会发现已生成图像：
http://blog.运维网.com/pmghong/../attachment/201303/112811994.jpg


默认情况下，cacti只监控本机，即cacti服务器，如上图所示！
至此，cacti 已经安装完成！