• Cacti安装详细步骤(转)


    一、cacti概述

    1. cacti是用php语言实现的一个软件,它的主要功能是用snmp服务获取数据,然后用rrdtool储存和更新数据,当用户需要查看数据的时候用rrdtool生成图表呈现给用户。因此,snmp和rrdtool是cacti的关键。Snmp关系着数据的收集,rrdtool关系着数据存储和图表的生成。

    2. Mysql配合PHP程序存储一些变量数据并对变量数据进行调用,如:主机名、主机ip、snmp团体名、端口号、模板信息等变量。

    3. snmp抓到数据不是存储在mysql中,而是存在rrdtool生成的rrd文件中(在cacti根目录的rra文件夹下)。rrdtool对数据的更新和存储就是对rrd文件的处理,rrd文件是大小固定的档案文件(Round Robin Archive),它能够存储的数据笔数在创建时就已经定义。

    二、安装rrdtool

    CentOS-5:
    32位:

    1. rpm -ivh http://apt.sw.be/redhat/el5/en/i386/rpmforge/RPMS/rpmforge-release-0.5.2-2.el5.rf.i386.rpm

    64位:

    1. rpm -ivh http://apt.sw.be/redhat/el5/en/x86_64/rpmforge/RPMS/rpmforge-release-0.5.2-2.el5.rf.x86_64.rpm
    1. yum install rrdtool -y

    CentOS-6:
    32位:

    1. rpm -ivh http://apt.sw.be/redhat/el6/en/i386/rpmforge/RPMS/rpmforge-release-0.5.2-2.el6.rf.i686.rpm

    64位:

    1. rpm -ivh http://apt.sw.be/redhat/el6/en/x86_64/rpmforge/RPMS/rpmforge-release-0.5.2-2.el6.rf.x86_64.rpm
    1. yum install rrdtool -y

    三、安装配置net-snmp

    1、安装net-snmp

    1. yum install net-snmp net-snmp-libs net-snmp-utils

    2、配置net-snmp
    在/etc/snmp/snmpd.conf中修改:

    1. view    systemview    included   .1.3.6.1.2.1.1

    为:

    1. view    systemview    included   .1.3.6.1.2.1

    3、测试net-snmp

    1. # service snmpd start
    2. # snmpwalk -v 1 -c public localhost .1.3.6.1.2.1.1.1.0
    3. SNMPv2-MIB::sysDescr.0 = STRING: Linux cronos 2.4.28 #2 SMP ven jan 14 14:12:01 CET 2005 i686

    五、安装LAMP

    1. yum install httpd php php-mysql php-snmp php-xml php-gd mysql mysql-server
    2. service httpd start
    3. service mysqld start
    4. mysqladmin -uroot password yourpassword
    5. mysqladmin --user=root --password reload

    四、安装cacti

    1、下载cacti

    1. cd /tmp
    2. wget http://www.cacti.net/downloads/cacti-0.8.8b.tar.gz
    3. tar xzf cacti-0.8.8b.tar.gz
    4. mv cacti-0.8.8b /var/www/html/cacti
    5. cd /var/www/html/cacti

    2、创建数据库

    1. mysqladmin --user=root -p create cacti

    3、导入数据库

    1. mysql -uroot -p cacti < cacti.sql

    4、创建数据库用户

    1. shell> mysql -uroot -p mysql
    2. mysql> GRANT ALL ON cacti.* TO cactiuser@localhost IDENTIFIED BY 'cactipassword';
    3. mysql> flush privileges;

    5、配置include/config.php

    1. $database_type = "mysql";
    2. $database_default = "cacti";
    3. $database_hostname = "localhost";
    4. $database_username = "cactiuser";
    5. $database_password = "cactipassword";
    6.  
    7. /* load up old style plugins here */
    8. $plugins = array();
    9. //$plugins[] = 'thold';
    10.  
    11. /*
    12.    Edit this to point to the default URL of your Cacti install
    13.    ex: if your cacti install as at http://serverip/cacti/ this
    14.    would be set to /cacti/
    15. */
    16. $url_path = "/cacti/";
    17.  
    18. /* Default session name - Session name must contain alpha characters */
    19. #$cacti_session_name = "Cacti";

    6、设置目录权限

    1. useradd cactiuser
    2. chown -R cactiuser rra/ log/

    7、配置计划任务

    1. echo "*/5 * * * * cactiuser php /var/www/html/cacti/poller.php > /dev/null 2>&1">>/etc/crontab
    2. service crond restart
    3. service httpd restart

    8、完成cacti的安装
    1) 在浏览器中输入:http://www.yourdomain.com/cacti/
    默认用户名:admin 密码:admin
    2) 更改密码
    3)设置cacti用到的命令路径

    至此,cacti的安装已经完成,服务器流量监控设置可以参考http://www.centos.bz/2012/06/cacti-monitor-traffic/

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  • 原文地址:https://www.cnblogs.com/fatt/p/4353708.html
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