Installation CACTI:

1. yum install php php-mysql mysql mysql-server mysql-devel net-snmp  net-snmp* rrdtool rrdtool*
2. useradd -u 104 cactiuser -d /var/www/cacti -s /sbin/nologin
3. cd /var/www
   tar zxvf cacti-0.8.6j.tar.gz
   mv cacti-0.8.6j cacti
   chown -R root:root cacti
4. chown -R  cactiuser /var/www/cacti/rra
   chown -R  cactiuser /var/www/cacti/log
5. mysql> GRANT ALL on cacti.* to cactiuser@localhost identified by 'cactiuser';
   mysql> flush privileges
   mysql> create database cacti
6. mysql -u cactiuser -p cacti < /var/www/cacti/cacti.sql
7. crontab -e
   #
   # CACTI
   #
   */5 * * * * php /var/www/cacti/poller.php > /dev/null 2>&1
   • 本來應該不要以root權限執行
     */5 * * * * cactiuser php /var/www/cacti/poller.php > /dev/null 2>&1)
     但如果你會用到ping的功能. 目前cacti中lib/ping.php, 我還無法解決非root如何執行, 所以直接用root執行
     如果你沒用到任何plugin, 其實就用cactiuser去執行crontab, 但如果這樣... 那要改/etc/passwd中cactiuser由/sbin/nologin改為/bin/bash 
8. Edit /etc/logrotate.d/cacti
   /var/www/cacti/log/cacti.log {
   daily
   rotate 8
   create 0644 cactiuser cactiuser
   }
9. Edit /var/www/cacti/include/config.php
   $database_default = "cacti"
   $database_hostname = "localhost"
   $database_username = "cactiuser"
   $database_password = "cacti"
10. Edit /etc/http/conf.d/cacti.conf
    <VirtualHost *:80>
    ServerAdmin tommy@ttn.com.tw
    DocumentRoot /var/www/cacti
    ServerName ncccacti1.ttn.net
    </VirtualHost>
11. http://ncccacti1.ttn.net/
    ID: admin
    pw: admin

Installation Plugins Architecture:

不論用不用的到Plugins, 我建議一開始還沒用前就先裝, 不要使用後才開始做, 因為他有改變一些Files, 一開始做若有問題, 要處理就比較容易:

1. download [Plugin Architecture Zip]
2. cd /usr/local/src
   mkdir mkdir cacti-plugin
   cd cacti-plugin
   unzip cacti-plugin-arch.zip
3. cd /var/www/cacti
   patch -p1 -N < /usr/local/src/cacti-plugin/cacti-plugin-0.8.6j.diff
   (因為我是0.8.6j, 如果是不同版本就要選不同的)
4. Modified /var/www/cacti/include/config.php
   • check 之前設定沒改掉
     $database_default = "cacti"
     $database_hostname = "localhost"
     $database_username = "cactiuser"
     $database_password = "cacti"
   • 修改url_path:
     $config['url_path'] = '/';

下面開始安裝一些scripts/plugins等五四三:

Install Advance Ping:

1. 至http://forums.cacti.net/about10049.html
2. 將ss_fping.zip解開放至/var/www/cacti/scripts
3. 將cacti_graph_template_ping_advanced_ping_v1_3.xml import至console
   • Console -> Import Templates:
      Import Template from Local File: cacti_graph_template_ping_advanced_ping_v1_3.xml
   • save
   • 檢查:
     Console -> Graph Templates: 可以看到PING - Advanced Ping v1.3
     

Install Monitor Plugin:

1. 至http://cactiusers.org/downloads download monitor
2. cd /var/www/cacti/plugins
   mkdir monitor
   cd monitor
   unzip /root/monitor-0.7.zip
   cd ..
   chown -R root:root monitor/
3. modify /var/www/cacti/include/config.php
   $plugins = array();
   $plugins[] = 'monitor';

Install Discovery:

1. 至http://cactiusers.org/downloads download discovery
2. mkdir /var/www/cacti/plugins/discovery
   cd /var/www/cacti/plugins/discovery
   unzip /root/discovery-0.7.zip
   mysql -u cactiuser -p cacti < discover.sql
   chown -R root:root discovery/
3. modify /var/www/cacti/include/config.php
   $plugins = array();
   $plugins[] = 'discovery';
4. 參考http://cactiusers.org/wiki/DiscoverDocs 相關資料
5. 設定
   • Console 右邊Configuration下的Settings進入Console -> Cacti Settings
   • 選Misc
     
     save
   • 至Console -> User Management, 設定User使用權限
     
     save
6. Trouble Shooting:
   • cd /var/www/cacti/plugins/discovery
   • 執行 php -q findhosts.php -f -d

Install Network Weathermap:

1. 至http://www.network-weathermap.com/download download
   參考: http://www.network-weathermap.com/manual/latest/pages/install-cacti-editor.html
2. cd /var/www/cacti/plugins
   unzip /root/php-weathermap-0.92.zip
   chown -R root:root weathermap/
   cd weathermap
   chown -R cactiuser:apache output/
   chmod -R g+w output/ 
3. Edit /var/www/cacti/include/config.php
   $plugins[] = 'weathermap';
4. 至Console -> User Management, 設定User使用權限
   
   save
5. 設定Editor
   • cd /var/www/cacti/plugins/weathermap
     cp editor-config.php-dist editor-config.php
   • Eidt editor-config.php
     $cacti_base = "/var/www/cacti"

     $cacti_url = http://your.server/

   • chown apache -R configs/
6. 設定完後可以至http://your.server/plugins/weathermap/editor.php進行編輯
7. 把要監控的weathermap加入
   
   • 至Console -> Weathermaps
   • 按Add加入Config File
   • 若點選"Recalculate All Maps Now", 則會立即產生Weahtermaps

Install Cisco Memory Usage Template:

1. 至http://forums.cacti.net/about2870.html download xml
2. 至Console -> Import Templates
    
   選擇cacti_graph_template_cisco_memory_usage.xml所在路徑
   
   save

建立自己的Data Query:
ex: 希望圖上都要顯示ifAlias

1. 至Console右邊Collection Methods下Data Queries: 點選"Snmp - Interface Statistics"
2. 
   
   • 點選In/Out Bits
   • 至Graph Template - Interface - Traffic (bits/sec)下
     輸入|host_description| - Traffic - |query_ifName| - |query_ifAlias|
     Fild Name: Titme
     
     Add
   • 把剛加的那行Move UP到最上面
     
     save

建立自己的Host Template

1. 至Console 右邊Templates下的Host Templates
2. 點右上角Add
3. 設定Host Template Name: Cisco Switch
   create
4. 
   
   • Associated Graph Templates: Add
     Cisco - CPU Usage
     Cisco - Memory Usage
   • Associated Data Queries: Add
     SNMP - Interface Statistics
   • save

Start to Add Device:

1. Console -> Devices: Add
   
2. 設定Detail
   
3. create
4. Add Associated Graph Templates: EX: 加"Cisco - CPU Usage", "PING - Advanced Ping v1.3"
    
   save
5. 至Console -> Devices: 點選要產生圖的Device 
6. 點選"Create Graphs for this Host"
   
7. 勾選要產生圖的: 包括CPU, Advance Ping, Interfaces
   
   create
8. 設定CPU/Adavance Ping等相關參數
   
   create
9. 設定顯示方式:
   • Console -> Graph Trees: Add
     
   • 設定Name
     create
   • 把Device加入Tree
     
   • Tree Item Type: Host
      
     選擇要加的Host
     create
   • save
10. User Management可以至Console -> User Management, 設定User使用權限

Authentication with AD:

1. 至Console右邊Configuration下的Settings, 然後點選Authentication
    
   save
2. 建立GuestLDAP的Template
   • Console -> User Management: 點選Add
     
     create
   • 修改"Graph Permissions"權限
      
     save

結論:

CACTI是一個很強的看流量工具, 但因為很強所以很複雜, 如果只是單純看cisco router/switch, 我建議就用MRTG, 別找麻煩. CACTI要用的好, 就要好好研究... 目前我覺得我的掌握度也只到七成.

其實最強最好, 不代就就最適合你...