1. 主机架构：
角色                ip地址
cacti服务器     192.168.8.81
被监控机器     192.168.8.82
  1. 客户端配置： a. 安装软件：
yum  -y  install  net-snmp  lm_sensors

b. 修改配置文件：vim /etc/snmp/snmpd.conf

com2sec notConfigUser  default       public
group   notConfigGroup v1           notConfigUser
group   notConfigGroup v2c           notConfigUser
view    systemview    included   .1.3.6.1.2.1.1
view    systemview    included   .1.3.6.1.2.1.25.1.1
access  notConfigGroup ""      any       noauth    exact  all none none
view all included .1
syslocation Unknown (edit /etc/snmp/snmpd.conf)
syscontact Root <root@localhost> (configure /etc/snmp/snmp.local.conf)
dontLogTCPWrappersConnects yes

c. 防火墙配置：

iptables  -I  INPUT  -p  tcp  --dport  199  -j  ACCEPT
iptables  -I  INPUT  -p  udp  --dport  161  -j  ACCEPT
iptables-save

d. 启动服务：

systemctl  start  snmpd
  1. 服务端配置： a. 安装软件：
yum  -y  install  net-snmp  net-snmp-devel  net-snmp-utils  snmp-libs  lm_sensors  httpd  mariadb  php  php-mysql  php-xml  zlib  libpng  freetype  cairo-devel  pango-devel  gd  rrdtool

b. 配置apache虚拟主机：vim /etc/httpd/conf/httpd.conf

AddType application/x-httpd-php .php .phtml .php3 .inc  #使apache支持php
...
<VirtualHost *:80>
    DocumentRoot "/var/www/html/cacti"
    ServerName cacti.lee.com
    DirectoryIndex index.php
</VirtualHost>

c. 修改php默认时区：vim /etc/php.ini

date.timezone = "PRC"

d. 下载cacti软件：

https://www.cacti.net/downloads/cacti-0.8.8a.tar.gz  #软件地址
wget  https://www.cacti.net/downloads/cacti-0.8.8a.tar.gz
tar  -xzf  cacti-0.8.8a.tar.gz  -C  /var/www/html/cacti

e. 修改cacti所属权限为apache：

chown  -R  apache.apache  /var/www/html/cacti

f. 在mariadb中添加一个数据库cacti并导入数据：

mysql  -uroot  -p  -e  "create  database  cacti"
mysql  -uroot  -p  cacti  <  /var/www/html/cacti/cacti.sql

g. 修改cacti配置文件：vim /var/www/html/cacti/include/config.php

<?php
$database_type = "mysql";
$database_default = "cacti";
$database_hostname = "localhost";
$database_username = "root";
$database_password = "123456";
$database_port = "3306";
$database_ssl = false;
$url_path = "/";
?>
  1. 测试：