Cacti 监控服务

一搭建Cacti监控服务器(105)
1.1 部署服务运行环境(LAMP)
yum -y install httpd php php-mysql mysql-server

mysql

/etc/init.d/httpd start ;chkconfig httpd on
/etc/init.d/mysqld start ;chkconfig mysqld on

[root@stu ~]# mysqladmin -hlocalhost -uroot

password "123"

[root@stu ~]# mysql -hlocalhost -uroot -p123
mysql>

yum -y install elinks

[root@stu ~]# cat /var/www/html/test.php
<?php
echo "hello a";
?>
[root@stu ~]# elinks --dump http://localhost/test.php hello a
[root@stu ~]#

[root@stu ~]# cat /var/www/html/linkdb.php
<?php
$linkdb=mysql_connect("localhost","root","123");
if($linkdb){
echo "link ok";
}else{
echo "link no";
}
?>
[root@stu ~]#

[root@stu ~]# elinks --dump
http://localhost/linkdb.php link ok

1.2 安装cacti软件
181 tar -zxvf cacti-0.8.7g.tar.gz
184 mv cacti-0.8.7g /var/www/html/cacti
185 chown -R apache:apache /var/www/html/cacti

修改cacti服务的主文件文件，指定存放配置信息的数据库
vim /var/www/html/cacti/include/config.php
$database_type = "mysql";
$database_default = "cactidb";
$database_hostname = "localhost";
$database_username = "jim";
$database_password = "123";
$database_port = "3306";
:wq

mysql -uroot -p123
mysql> create database cactidb;
mysql> grant all on cactidb.* to jim@"localhost"

identified by "123";
mysql>quit

mysql -hlocalhost -ujim -p123
mysql>quit;

创建存储配置信息的表
[root@stu cacti]# ls /var/www/html/cacti/*.sql
/var/www/html/cacti/cacti.sql
[root@stu cacti]#

mysql -hlocalhost -ujim -p123 cactidb <

/var/www/html/cacti/cacti.sql

访问web页面安装cacti
ping 172.40.50.105 http://172.40.50.105/cacti
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1.2 监控远端服务器（ 103）
1.2.1 在服务器103上运行snmpd服务
yum -y install net-snmp

[root@stu ~]# sed -n '41p;62p;85p'

/etc/snmp/snmpd.conf
com2sec notConfigUser 172.40.50.105 public
access notConfigGroup "" any noauth exact all

none none
view all included .1 80
[root@stu ~]#

[root@stu ~]# /etc/init.d/snmpd status
snmpd 已停
[root@stu ~]# /etc/init.d/snmpd start
正在启动 snmpd： [确定]
[root@stu ~]# netstat -untlap | grep snmpd
tcp 0 0 127.0.0.1:199 0.0.0.0:*

LISTEN 12339/snmpd
udp 0 0 0.0.0.0:161 0.0.0.0:*

12339/snmpd
[root@stu ~]#

1.2.2 在监控服务器上监控103 http://172.40.50.105/cacti （使用管理登录管理页面）
1 添加要监控的主机
2 选择监控模板
3 选择监控资源
4 给监控的资源创建图片
5 给监控的主机创建图像树
6 把创建的图片添加的图像树里
7 收集监控数据
8 查看监控信息
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1.3 监控本机
1.3.1 运行snmpd 服务
rpm -q net-snmp

vim /etc/snmp/snmpd.conf
[root@stu ~]# sed -n '41p;62p;85p'

/etc/snmp/snmpd.conf
com2sec notConfigUser localhost public
access notConfigGroup "" any noauth exact all

none none
view all included .1 80
[root@stu ~]#

[root@stu ~]# /etc/init.d/snmpd start
正在启动 snmpd： [确定]
[root@stu ~]# netstat -untlap | grep snmpd
tcp 0 0 127.0.0.1:199 0.0.0.0:*

LISTEN 12339/snmpd
udp 0 0 0.0.0.0:161 0.0.0.0:*

12339/snmpd
[root@stu ~]#

1.3.2 在监控服务器上监控自己 http://172.40.50.105/cacti （使用管理登录管理页面）
1 添加要监控的主机
2 选择监控模板
3 选择监控资源
4 给监控的资源创建图片
5 给监控的主机创建图像树
6 把创建的图片添加的图像树里
7 收集监控数据
vim /etc/php.ini
946 date.timezone = Asia/Chongqing
:wq
php /var/www/html/cacti/poller.php

ls /var/www/html/cacti/rra/*.rra

[root@stu ~]# crontab -l
*/3 * * * * php /var/www/html/cacti/poller.php
[root@stu ~]# /etc/init.d/crond status
crond (pid 1803) 正在运行...
[root@stu ~]#

8 查看监控信息 http://172.40.50.105/cacti （使用管理登录管理页面）

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三、配置Cacti监控报警（通过插件实现的）
3.1 让cacti支持插件功能
2 tar -zxvf cacti-plugin-0.8.7g-PA-v2.9.tar.gz
6 mv cacti-plugin-arch/ /var/www/html/cacti/
7 cd /var/www/html/cacti/

9 which patch
10 yum -y install patch
11 which patch

14 patch -N -p1 < cacti-plugin-arch/cacti-plugin-

0.8.7g-PA-v2.9.diff

16 ls plugins
index.php

17 vim /var/www/html/cacti/include/config.php
$url_path = "/cacti/";
:wq

18 cd /var/www/html/cacti/cacti-plugin-arch/

21 mysql -uroot -p123 cactidb < pa.sql

登录管理页面启用插件功能

3.2 安装插件并激活插件
tar -zxvf monitor-v1.3-1.tgz
tar -zxvf settings-v0.71-1.tgz
tar -zxvf thold-v0.4.9-3.tgz

mv settings /var/www/html/cacti/plugins/
mv thold /var/www/html/cacti/plugins/
mv monitor /var/www/html/cacti/plugins/

[root@13 ~]# ls /var/www/html/cacti/plugins/
index.php monitor settings thold
[root@13 ~]#

3.3 配置插件实现监控报警功能（发邮件）
对登录的用户数做监控报警

邮件用户列表 sendmail
设置对监控的资源做监控报警
指定邮件服务器

发邮件 :
发件人 root@localhost
收件人 cactiuser@localhost
邮件服务器 localhost
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error

You have created a new database, but have not yet imported the 'cacti.sql' file. At the command line, execute the following to continue:

mysql -u jim -p cactidb < cacti.sql

This error may also be generated if the cacti database user does not have correct permissions on the cacti database. Please ensure that the cacti database user has the ability to SELECT, INSERT, DELETE, UPDATE, CREATE, ALTER, DROP, INDEX on the cacti database.
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FATAL: Cannot connect to MySQL server on 'localhost'.
Please make sure you have specified a valid MySQL
database name in 'include/config.php'