Centralized Monitoring Station for IT Computing and Network Infrastructure<br />
Abstract<br />In today's world, where all the computing revolves around the concept of networking, the work for system adm...
Technical Architecture<br />Network devices including switches, routers, and firewalls are a key part of any IT environmen...
Snmp Manager<br />Mysql database which store information of managed devices<br />Running snmp manager<br />Apache web seve...
Components used for network monitoring<br />   Its has mainly a tool that is working on collective use of<br /><ul><li>LINUX
SNMP
MRTG</li></li></ul><li>LINUX<br />Low cost<br />Stability<br />Performance<br />Network friendliness<br />Security<br />Op...
SNMP<br />The Simple Network Management Protocol (SNMP) is an application layer protocol that facilitates the exchange of ...
Three main tasks are performed by SNMP<br /><ul><li>Configuration Management
Performance Management
Fault Management</li></li></ul><li>Object Identity <br />OIDs are arranged in a structure of management information (SMI) ...
MIB<br />Management Information Bases (MIBs) are text definitions of each of the OID branches of a network<br /> SNMP OID ...
Functional Areas of SNMP<br />Configuration Management- inventory, configuration, provisioning<br />Fault Management- reac...
Advantages of using SNMP<br />Standardized<br />universally supported<br />extendible<br />portable<br />allows distribute...
Four Basic Operations<br />Get<br />    Retrieves the value of a MIB variable stored on the agent machine(integer, string,...
MRTG (Multi-Router Traffic Grapher)<br />MRTG is a public domain package for producing graphs of various router statistics...
MRTG continued<br />•  MRTG uses simple SNMP queries on a regular interval to <br />   generate graphs. <br />•  External ...
Implementation<br />First work is installation of installation of SNMP Utilities on a Linux server because by default SNMP...
Implementation cont…<br />For SNMP implementation we need snmp read only string and ip address <br />The second step is in...
Implementation cont…<br />MRTG is useful because it can provide a graphical representation of server’s performance statist...
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Centralized monitoring station for it computing and network infrastructure

  1. 1. Centralized Monitoring Station for IT Computing and Network Infrastructure<br />
  2. 2. Abstract<br />In today's world, where all the computing revolves around the concept of networking, the work for system administrators has become more and more overwhelming. It is the mission of maintaining the availability of resources such as routers, hubs, servers and every critical device in the network.<br />Monitoring network activity is also a good starting point for discovering security problems and misbehaviors<br />So ourProject Aims to Set up Centralized Monitoring Infrastructure for IT Networks which helps Monitoring, Alerting & Reporting of Performance Parameters of various critical devices connected to the Network Backbone of Organization.<br />
  3. 3. Technical Architecture<br />Network devices including switches, routers, and firewalls are a key part of any IT environment. Main Server compliments its deep coverage of operating systems and application management with support for SNMP based, agentless management of network devices from vendors such as Cisco Systems<br />
  4. 4. Snmp Manager<br />Mysql database which store information of managed devices<br />Running snmp manager<br />Apache web sever for giving data to web browser<br />Managed <br />Computer<br />Managed<br />Router<br />Managed<br /> Computer<br />Managed<br />Switch<br />Managed<br />Computer<br />Running snmp agent<br />Running snmp agent<br />Running snmp agent<br />Running snmp agent<br />Running snmp agent<br />Management information base of computer<br />Management information base of computer<br />Management information base of computer<br />Management information base of router<br />Management information base of switch<br />
  5. 5. Components used for network monitoring<br /> Its has mainly a tool that is working on collective use of<br /><ul><li>LINUX
  6. 6. SNMP
  7. 7. MRTG</li></li></ul><li>LINUX<br />Low cost<br />Stability<br />Performance<br />Network friendliness<br />Security<br />Open Source<br />Full use of hard disk<br />Multitasking<br />
  8. 8. SNMP<br />The Simple Network Management Protocol (SNMP) is an application layer protocol that facilitates the exchange of management information between network devices. It is part of the Transmission Control Protocol/Internet Protocol (TCP/IP) protocol suite. SNMP enables network administrators to manage network performance, find and solve network problems, and plan for network growth.<br />It comprised of agents and managers<br />Agent - process running on each managed node collecting information about the device it is running on.<br />Manager - process running on a management workstation that requests information about devices on the network<br />
  9. 9. Three main tasks are performed by SNMP<br /><ul><li>Configuration Management
  10. 10. Performance Management
  11. 11. Fault Management</li></li></ul><li>Object Identity <br />OIDs are arranged in a structure of management information (SMI) tree defined by the SNMP standard. The tree starts from a root node, which then descends through branches and leaves that each add their own reference value to the path separated by a period.. Figure 1 shows an OID structure in which the path to the enterprises OID branch passes through the org, dod, internet, and private branches first<br />
  12. 12. MIB<br />Management Information Bases (MIBs) are text definitions of each of the OID branches of a network<br /> SNMP OID Structure<br />OIDs And Their Equivalent MIBs<br />
  13. 13. Functional Areas of SNMP<br />Configuration Management- inventory, configuration, provisioning<br />Fault Management- reactive and proactive network fault management<br />Performance Management- # of packets dropped, timeouts, collisions, CRC errors<br />Security Management- SNMP doesn’t provide much here <br />Accounting Management- cost management and chargeback assessment<br />Asset Management- statistics of equipment, facility, and administration personnel<br />Planning Management- analysis of trends to help justify a network upgrade or bandwidth increase<br />
  14. 14. Advantages of using SNMP<br />Standardized<br />universally supported<br />extendible<br />portable<br />allows distributed management access<br />lightweight protocol<br />
  15. 15. Four Basic Operations<br />Get<br /> Retrieves the value of a MIB variable stored on the agent machine(integer, string, or address of another MIB variable)<br />GetNext<br /> Retrieves the next value of the next lexical MIB variable<br />Set<br /> Changes the value of a MIB variable<br />Trap<br />An unsolicited notification sent by an agent to a management application (typically a notification of something unexpected, like an error)<br />
  16. 16. MRTG (Multi-Router Traffic Grapher)<br />MRTG is a public domain package for producing graphs of various router statistics via a Web page. You can easily create graphs of traffic flow statistics through your home network's firewall/router or even your Linux box's NIC cards using MRTG. <br />It monitor the traffic load on network-links. MRTG generates HTML pages containing PNG images which provide an almost live visual representation of this traffic<br />
  17. 17. MRTG continued<br />•  MRTG uses simple SNMP queries on a regular interval to <br /> generate graphs. <br />•  External readers for MRTG graphs can create other <br /> interpretation of data. <br />•  MRTG software can be used not only to measure network <br /> traffic on interfaces, but also build graphs of anything that <br /> has an equivalent SNMP MIB - like CPU load, disk <br /> availability, temperature, etc... <br />•  Data sources can be anything that provides a counter or <br /> gauge value – not necessarily SNMP. <br /> –  For example, graphing round trip times.<br />
  18. 18. Implementation<br />First work is installation of installation of SNMP Utilities on a Linux server because by default SNMP Packages are present but are not installed. So we install net-sntp-utils<br />Then checked SNMP Utility command syntax. If they are proper then we configure simple SNMP on linux server after installation is complete installation on other devices is which are SNMP enabled like routers, switches and firewalls. <br />
  19. 19. Implementation cont…<br />For SNMP implementation we need snmp read only string and ip address <br />The second step is installation of MRTG<br />After installation we configure MRTG<br />MRTG installation file creates a cron file named /etc/cron.d/mrtg. This file tell the cron daemon MRTG in every five minutes. MRTG can poll multiple devices so it is good for monitoring.<br />
  20. 20. Implementation cont…<br />MRTG is useful because it can provide a graphical representation of server’s performance statistics via a web browser.<br />For this work it takes the help of Apache.<br />So to work on the performance of sever on internet and monitor processes at that time we need to configure Apache also.<br />In MRTG package we attached a patch of linux shell to make it enable to ring an alarm when it passes the throughput of the processes we decided.<br />By this way we are able to monitor our network<br />
  21. 21. Conclusion<br />By this Project we are able to graph most SNMP MIB values available on any type of device. MRTG is an excellent, flexible monitoring tool and should be considered as a part of any systems administrator's server management plans.<br />Server monitoring is always a good practice, because it can help you predict when things are going to go wrong or long term trends in your Web traffic.<br />MRTG can be expanded not only to monitor traffic on your server's NIC cards, but also to graph many of the statistics listed in top, free, and vmstat<br />
  22. 22. Thank you Teachers<br />

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