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
[[email protected] ~]# mysqladmin -hlocalhost -uroot
password "123"
[[email protected] ~]# mysql -hlocalhost -uroot -p123
mysql>
yum -y install elinks
[[email protected] ~]# cat /var/www/html/test.php
<?php
echo "hello a";
?>
[[email protected] ~]# elinks --dump http://localhost/test.php
hello a
[[email protected] ~]#
[[email protected] ~]# cat /var/www/html/linkdb.php
<?php
$linkdb=mysql_connect("localhost","root","123");
if($linkdb){
echo "link ok";
}else{
echo "link no";
}
?>
[[email protected] ~]#
[[email protected] ~]# 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 [email protected]"localhost"
identified by "123";
mysql>quit
mysql -hlocalhost -ujim -p123
mysql>quit;
创建存储配置信息的表
[[email protected] cacti]# ls /var/www/html/cacti/*.sql
/var/www/html/cacti/cacti.sql
[[email protected] 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
+++++++++++++++++++++++++++++++
+++++++++++++++++++++++++++++++
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
[[email protected] ~]# 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
[[email protected] ~]#
[[email protected] ~]# /etc/init.d/snmpd status
snmpd 已停
[[email protected] ~]# /etc/init.d/snmpd start
正在启动 snmpd： [确定]
[[email protected] ~]# 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
[[email protected] ~]#
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
++++++++++++++++++++++++++++
1.3 监控本机
1.3.1 运行snmpd 服务
rpm -q net-snmp
vim /etc/snmp/snmpd.conf
[[email protected] ~]# 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
[[email protected] ~]#
[[email protected] ~]# /etc/init.d/snmpd start
正在启动 snmpd： [确定]
[[email protected] ~]# 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
[[email protected] ~]#
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
[[email protected] ~]# crontab -l
*/3 * * * * php /var/www/html/cacti/poller.php
[[email protected] ~]# /etc/init.d/crond status
crond (pid 1803) 正在运行...
[[email protected] ~]#
8 查看监控信息
http://172.40.50.105/cacti （使用管理登录管理页面）
+++++++++++++++++++++++++++++++++++
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/
[[email protected] ~]# ls /var/www/html/cacti/plugins/
index.php monitor settings thold
[[email protected] ~]#
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 [email protected]
收件人 [email protected]
邮件服务器 localhost
++++++++++++++++++++++++++++++++
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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.
+++++++++++++++++++++++++++++++++++++++++++
FATAL: Cannot connect to MySQL server on ‘localhost‘.
Please make sure you have specified a valid MySQL
database name in ‘include/config.php‘