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README
Apache-2.0

monit2 (2007/04 -- 2020/08)

一 介绍

一个基于mac地址识别,并对mac地址及相关的数据进行监控、管理的一个系统。 主要用于机房的网络监控和硬件设备的管理。

二 应用场景

假设 你是一名运维人员;负责一个企业的内部网络的正常运行或一个机房的管理。

下面我列举了一些部分常见的运维事项或管理中要遇到的问题,你是否有比较好的解决方案?

  • 网络中有多少机器,各自的mac是多少, 各自使用的IP地址是多少,个人私自换IP,如何快速得知?
  • 想随时了解办公网、机房的外出流量是多少?哪些mac或哪些ip的进出速率是多少?或top10排名是?
  • 最近1天或3天,或一周或半月或一个月,新接入网络有哪些机器,它们的mac和最新使用ip是多少?
  • 新增加的机器接入网络了,它们的物理位置在哪里?在哪个办公位?机房的哪个机柜? 假设机器搬动换了位置,你如何快速得知?
  • 网络突然变慢或网络异常,你如何快速得知哪个mac进或出流量异常? 假设你在N多电话的催促之下,终于找到一个或多个mac, ip它们的网络行为很可疑问;老板或你的上级问你,是哪些机器或同事造成的,此时你如何通过mac或IP快速定位是哪一位帅哥和美女啊?
  • 所有的机器mac如何和真实的使用者(同事姓名)关联起来? 你要一一对他办公桌核对mac进行手工登记?时间一长,又有变动,如何实时更新?这是什么效率?
  • 你作为网络维护的负责人,你想达到未在你那登记过的机器mac,即使他私自接线,配置IP,也无法上网?如何实现这个目标?
  • 机器的ip,和物理位置,可能会随部门变动,整合,人员工作划分,发生变化。你如何得知,某个部门现在有哪些办公电脑,其mac和ip是多少?机房的随便哪个机柜有些机器放里面?
  • 我直接说机房有个ip 192.168.9.3 突然不通了, 你去机房了,如何在30秒内,准确地找到这台机器在哪里(哪个机柜,机柜的上部,中部还是下部)?
  • 机房有台服务器ip可达,但http打不开了,你如何能快速第一时间得知此异常事件?
  • 机器ip可达,http静态页面访问正常,但http下的某个cgi打不开了, 你如何能快速第一时间得知此异常事件?
  • 当你得知一个mac或ip流量异常,你如何直接封掉他的上网流量? 让他主动找你?
  • 办公网络和机房的所有接入层交换机,目前的接口使用情况你知道吗? 用了多少个口,还剩多少个?
  • 办公网络和机房若有arp攻击(arp扫描和arp欺骗),影响了很多人上网。你如何快速找到是哪台机器人为或意外中毒造成的?

而monit2可以解决上面所有的问题。

三 开发背景

本人负责整个研发中心的一个测试机房管理、运维工作。测试部的项目测试环境、研发各项目组的开发环境均放在此机房中。 在日常运维中,经常会遇到某个IP不通、某个IP不知存放在哪个机架、所有机器的MAC地址不明、所有机器的进出流量多大均无法得知。 为了解决上述需求,通过在所有机器流量出口处串行一台ucf/linux(本人基于Linux Kernel + uClibc定制),并运行着monit2程序,将所有的报文获取下来,获取mac地址和ip等信息,创建hashtab,加入mac地址进去进行跟踪;更新发现时间、活动时间、计算即时和累计流量等各种信息。通过实现接口,供前端获取相应的信息进行前端展示。

四 软件架构

开发工具/语言: Vim + C + Ruby + Bash + gcc

整个系统使用 Nginx 和 C/S架构 。 S端运行着基于底层处理网络数据报文的程序,并开放了TCP监听的接口;C端运行着查询管理工具,调用时会向S发送TCP查询请求,将响应的结果进行JSON组装返回给前端。

特性:

  • 由于是底层实现,所以性能好,自身不会成为性能瓶颈;
  • 自动识别接入层交换机下的所有产生流量的mac和ip;
  • 自动统计所有mac流量信息;
  • 支持‘通知’编写和显示;
  • 支持相关‘事件’的显示和日志记录;
  • 支持mac先登记、再使用的原则,方便网络管理员管理;
  • 支持mac登记统计和审计;
  • 支持按mac进出流量累计和速率进行排序;
  • 支持mac物理位置自动识别,方便去现场快速找到物理设备;
  • 支持按机柜、接入层交换机进行过滤显示其下存在mac清单;
  • 支持接入层交换机所有接口使用与否面板展示,方便网络管理员了解接口使用情况;
  • 支持重点监控某此mac的可达性;(包括ARP、ICMP可达;TCP/UDP端口可达;HTTP对象可达);

五 感谢人

同事许健(qq 810599089),擅长Java、前后端开发。在此系统中的开发过程,他主要负责前端的开发工作。本人负责除前端外的后端及底层工作。

六 系统演示

主要分下面几块:

目录

  • 新发现
  • 新登记
  • 通告
  • 事件
  • 重点监控
  • 管理交换机
  • ARP检测
  • 其它

录制的gif有点多,请见谅!

6.1 新发现

6.1.1 全部和查询

查看gif动画: 新发现-全部和查询.gif

表

6.1.2 按机柜过滤显示

查看gif动画: 新发现-按机柜过滤显示.gif

表

6.1.3 按黑白名单过滤显示

查看gif动画: 新发现-按黑白名单过滤显示.gif

表

6.1.4 按管理交换机过滤显示

查看gif动画: 新发现-按管理交换机过滤显示.gif

表

6.1.5 物理位置识别和其它信息

查看gif动画: 新发现-物理位置识别和其它信息.gif

表

6.2 新登记

6.2.1 登记统计

查看gif动画: 新登记-登记统计.gif

表

6.2.2 管制黑和管制白

查看gif动画: 新登记-管制黑和管制白.gif

表

6.2.3 提交登记和注销登记

查看gif动画: 新登记-提交登记和注销登记.gif

表

6.3 通告

6.3.1 查看编辑和新新增

查看gif动画: 通告-查看编辑和新新增.gif

表

6.4 事件

6.4.1 arp扫描和欺骗

查看gif动画: 事件-arp扫描和欺骗.gif

表

6.4.2 fnd-3构造外出流量触发mac_outbps

查看gif动画: 事件-fnd-3构造外出流量触发mac_outbps.gif

表

6.5 重点监控

6.5.1

6.6 管理交换机

6.6.1 接口使用分布

查看gif动画: 管理交换机-接口使用分布.gif

表

6.7 ARP检测

6.7.1 ip列表和自身arp汇总

查看gif动画: arp-ip列表和自身arp汇总.gif

表

6.7.2 全局arp汇总及事件

查看gif动画: arp-全局arp汇总及事件.gif

表

6.8 其它

6.8.1 faq

查看gif动画: 其它-faq.gif

表

6.8.2 top统计

查看gif动画: 其它-top统计.gif

表

6.8.3 接口流量汇总和监控

查看gif动画: 其它-接口流量汇总和监控.gif

表

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简介

一个基于mac地址识别,并对mac地址及相关的数据进行监控、管理的一个系统。 主要用于机房的网络监控和硬件设备的管理。 展开 收起
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