The document presents an overview of the Simple Network Management Protocol (SNMP). It describes SNMP's key concepts including management components like SMI and MIB, SNMP messages, UDP ports used, commercial SNMP applications, and advantages. The protocol allows network administrators to monitor and manage network resources by defining how information is exchanged between SNMP agents and managers.
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Become Wireshark Certified - https://www.udemy.com/wireshark-tutorial/?couponCode=CEWS Understand Wireshark and how this network analyzer tool can help you succeed in your Wireshark job!
Presented on 6 September 2013 in a seminar organised by Progreso Training.
Sign up for free seminars at http://progresotraining.eventbrite.sg or http://www.progreso.com.sg/training/event_view_all.php for an overview of IPv6 Security.
SNMP is a tool (protocol) that allows for remote and local management of items on the network including servers, workstations, routers, switches and other managed devices.
•It is an application level protocol and is designed for application layer so that it can monitor devices made by different manufacturers and installed on different physical networks.
•In other words SNMP frees management tasks from both the physical characteristics of managed devices and the underlying network technology.
•It is based on the concept of manager and agent.
–Agent - process running on each managed node collecting information about the device it is running on. It is a router or a host that runs SNMP server program
–Manager - process running on a management workstation that requests information about devices on the network. It is a host that runs the SNMP client program.
Simple Network Management Protocol by vikas jagtapVikas Jagtap
NETWORK MANAGEMENT can be defined as monitoring, testing, configuring and trouble shooting network components to meet a set of requirements defined by an organization.
Set of requirements include the smooth, efficient operation of the network that provides the predefined quality of service for users
Nagios Conference 2011 - Mike Weber - Training: Getting Started With SNMPNagios
Mike Weber's training class on using SNMP with Nagios. The training session was held during the Nagios World Conference North America held Sept 27-29th, 2011 in Saint Paul, MN. For more information on the conference (including photos and videos), visit: http://go.nagios.com/nwcna
Network Management is about monitoring and managing multi-protocol networks using the SNMP Protocol. The workshop reviews the SNMP Protocol structure, Network management applications, and query agents. There will be a detailed discussion on identifying objects, MIBs and SNMP devices.
WORKSHOP OBJECTIVES:
You will understand the structure and operation of SNMP
You will use SNMP to identify faulty devices
You will use RMON to analyse remote network information
You will interpret and explain MIB I and MIB II (Public/Private/Proprietary)
You will track the important variables on your network
You will install and configure a typical Network Management Package
MORE INFORMATION: http://www.idc-online.com/content/snmp-network-management-essentials-27
Presentation by Grorg Christian Pranschkle at ZaCon 2 in 2010.
This presentation is about SNMP security The presentation begins with an overview of SNMP. SNMP security weaknesses and SNMP security in cisco apps are discussed. Frisk-0 a tool for SNMP Hacking developed by the presenter is also discussed.
Presented on 6 September 2013 in a seminar organised by Progreso Training.
Sign up for free seminars at http://progresotraining.eventbrite.sg or http://www.progreso.com.sg/training/event_view_all.php for an overview of IPv6 Security.
SNMP is a tool (protocol) that allows for remote and local management of items on the network including servers, workstations, routers, switches and other managed devices.
•It is an application level protocol and is designed for application layer so that it can monitor devices made by different manufacturers and installed on different physical networks.
•In other words SNMP frees management tasks from both the physical characteristics of managed devices and the underlying network technology.
•It is based on the concept of manager and agent.
–Agent - process running on each managed node collecting information about the device it is running on. It is a router or a host that runs SNMP server program
–Manager - process running on a management workstation that requests information about devices on the network. It is a host that runs the SNMP client program.
Simple Network Management Protocol by vikas jagtapVikas Jagtap
NETWORK MANAGEMENT can be defined as monitoring, testing, configuring and trouble shooting network components to meet a set of requirements defined by an organization.
Set of requirements include the smooth, efficient operation of the network that provides the predefined quality of service for users
Nagios Conference 2011 - Mike Weber - Training: Getting Started With SNMPNagios
Mike Weber's training class on using SNMP with Nagios. The training session was held during the Nagios World Conference North America held Sept 27-29th, 2011 in Saint Paul, MN. For more information on the conference (including photos and videos), visit: http://go.nagios.com/nwcna
Network Management is about monitoring and managing multi-protocol networks using the SNMP Protocol. The workshop reviews the SNMP Protocol structure, Network management applications, and query agents. There will be a detailed discussion on identifying objects, MIBs and SNMP devices.
WORKSHOP OBJECTIVES:
You will understand the structure and operation of SNMP
You will use SNMP to identify faulty devices
You will use RMON to analyse remote network information
You will interpret and explain MIB I and MIB II (Public/Private/Proprietary)
You will track the important variables on your network
You will install and configure a typical Network Management Package
MORE INFORMATION: http://www.idc-online.com/content/snmp-network-management-essentials-27
Presentation by Grorg Christian Pranschkle at ZaCon 2 in 2010.
This presentation is about SNMP security The presentation begins with an overview of SNMP. SNMP security weaknesses and SNMP security in cisco apps are discussed. Frisk-0 a tool for SNMP Hacking developed by the presenter is also discussed.
This presentation gives a general overview of basic SNMP operations and troubleshooting SNMP issues. This presentation is the second of a three part series - SNMP Demystified.
I gave this presentation 3 times, regarding the demo the first time I used CISCO
packet tracer (simulator) by configuring the router with the SNMP configuration and
adding a community-string then browsing the router elements via an MIB browser from
any pc connected to the router.
the second and third times I made a live demo by using the (pure PERL SNMP library)
and writing a small PERL script using the functions from it and connected my laptop
to the configured router using putty..
pure PERL SNMP library link:
http://code.google.com/p/snmp-session/
NON-INTRUSIVE REMOTE MONITORING OF SERVICES IN A DATA CENTREcscpconf
Non-intrusive remote monitoring of data centre services should be such that it does not require
(or minimal) modification of legacy code and standard practices. Also, allowing third party
agent to sit on every server in a data centre is a risk from security perspective. Hence, use of
standard such as SNMPv3 is advocated in this kind of environment. There are many tools (open
source or commercial) available which uses SNMP; but we observe that most of the tools do not
have an essential feature for auto-discovery of network. In this paper we present an algorithm
for remote monitoring of services in a data centre. The algorithm has two stages: 1) auto
discovery of network topology and 2) data collection from remote machine. Further, we
compare SNMP with WBEM and identify some other options for remote monitoring of services
and their advantages and disadvantages.
Zach Shelby, Chief Nerd and co-founder of Sensinode, gives a high-level tutorial of the new OMA Lightweight M2M standard for Device Management, Network Mangement and Application Data for the Internet of Things. This new CoAP and DTLS based standard provides a complete system interface solution for M2M devices and services.
Noorbehbahani data preprocessing for anomaly based network intrusionnoorbehbahani
comprehensively reviewing the features derived from network traffic, and the related data preprocessing techniques which have been used in anomaly-based NIDS since 1999.
grouping anomaly-based NIDS based on the types of network traffic features used for detection. The aim is to show where the majority of research has been focused. The groups show a trend from previously using packet header features exclusively, to using more payload features.
Tutorial about the Lightweight Machine-to-Machine (LWM2M) standard developed by the Open Mobile Alliance (OMA). The tutorial was primarily given to participants from the IETF ACE working group.
Originally posted on: http://www.tschofenig.priv.at/wp/?p=1119
Simon Lemay and Hannes Tschofenig gave a tutorial about the Lightweight Machine-to-Machine (LWM2M) standard developed by the Open Mobile Alliance (OMA) to participants from the IETF ACE working group.
LWM2M offers several features that are relevant for Internet of Things security and also for the work in the IETF ACE working group, such as: Software Updates, Distribution of keys and access control policies (during a process called bootstrapping in the specification), Remote Device and Application, Configuration, and Diagnostics.
In summary, LWM2M is a device lifecycle management solution that builds on IETF protocols designed to be lightweight, such as CoAP, various CoAP extensions (such as Resource Directory), and DTLS.
The slide deck should give you an idea what we have been talking about.
How I learned to Stop Worrying and Start Loving the Smart MeterEnergySec
Presented by: Spencer McIntyre, SecureState
Abstract: Smart Meter Security is a growing topic in the security industry that hasn’t been discussed to its full potential. This presentation will discuss the types of vulnerabilities that have been found in Smart Meters, and give examples from real world assessments we’ve conducted. Different methods of accessing the meter will be presented such as over the optical interface and the Zigbee wireless radio. In addition, we will discuss a testing methodology we’ve developed which covers Smart Meter testing with the open source Termineter framework developed by the presenter. Finally a live demonstration of the attacks that were discussed will be performed on a real Smart Meter during the presentation for the audience. Finally the newest features in the Termineter framework will be discussed including the support for connecting to Meters over TCP/IP networks using C12.22.
Audience members will leave the presentation with a detailed understanding of the types of vulnerabilities that affect smart meters and how they can be leveraged by an attacker.
Spenser Reinhardt's presentation on Intro to Network Monitoring Using Nagios Network Analyzer and NSTI.
The presentation was given during the Nagios World Conference North America held Sept 20-Oct 2nd, 2013 in Saint Paul, MN. For more information on the conference (including photos and videos), visit: http://go.nagios.com/nwcna
Synopsis: A discussion of the requirements for next generation network management identified in RFC 3535 which lead to the development of NETCONF and YANG.
As the enormous use of internet increases day by day so as security concern is also raise day by day over
the internet. In this paper we discuss the network security and its related threats and also study the types of
protocols and few issues related to protocols in computer networks. We also simulate the design of 5 node
wired network scenario, its packet drop rate analysis through TCP protocol using NS2 as a simulator.
Analyzed the performance of 5-node network when the packet is drop down by graphical method also
called as Xgraph when rate parameter is in mb and also analyzed the performance of same network by
changing the value of rate parameter at same time so no packets would drop down at same time and also
analyzed the performance by Xgraph method.
Dr. Sean Tan, Head of Data Science, Changi Airport Group
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• Communication Mining Overview
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• How can it help today’s business and the benefits
• Phases in Communication Mining
• Demo on Platform overview
• Q/A
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Welcome to UiPath Test Automation using UiPath Test Suite series part 5. In this session, we will cover CI/CD with devops.
Topics covered:
CI/CD with in UiPath
End-to-end overview of CI/CD pipeline with Azure devops
Speaker:
Lyndsey Byblow, Test Suite Sales Engineer @ UiPath, Inc.
GraphSummit Singapore | The Future of Agility: Supercharging Digital Transfor...Neo4j
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GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
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One such alternative that has garnered significant attention and acclaim is Nitrux Linux 3.5.0, a sleek, powerful, and user-friendly Linux distribution that promises to redefine the way we interact with our devices. With its focus on performance, security, and customization, Nitrux Linux presents a compelling case for those seeking to break free from the constraints of proprietary software and embrace the freedom and flexibility of open-source computing.
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Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
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Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
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- These are slides of the talk given at IEEE International Conference on Software Testing Verification and Validation Workshop, ICSTW 2022.
3. The Simple Network Management Protocol
(SNMP) is an application layer protocol used to
manage network resources. This standardization
gives network administrators the ability to
monitor network performance.
Defines the format of packets exchanged between
a manager and an agent.
It reads and changes the status (values) of
objects(variables) in SNMP packets.
September 4, 2013 3
INTRODUCTION
5. Here is a very simplified picture.
Network manager contact to the agent through
TCP/IP protocol.
The agent resides in the managed devices and this
agent have some agent variables which should be
available to this manger for monitoring.
September 4, 2013 5
CONCEPT
6. AGENT:
• A router or host that runs the SNMP server
program.
• Keep the performance information in a data base.
• Can send a trap to the manager if something
unusual occurs.
September 4, 2013 6
CONCEPT
7. MANAGER:
• A host that runs the SNMP client program.
• Has access to values in the agent database.
September 4, 2013 7
CONCEPT
8. A manager checks an agent by requesting
information that reflects the behaviour of the
agent.
A manager forces an agent to perform a task by
resetting values in the agent database.
An agent contributes to the management process
by warning the manager of an unusual situation
September 4, 2013 8
CONCEPT
11. This is the actual SNMP protocol itself.
It defines how information is exchanged between
SNMP agents and network management stations.
The SNMP protocol operations define the various
SNMP messages and how they are created and
used.
September 4, 2013 11
SNMP
12. SNMP transport mappings describe how SNMP
can be used over various underlying internetworks
such as TCP/IP,IPX and others.
It simply an application program that has a client
on the manager and a server on the agent.
September 4, 2013 12
SNMP
14. SMI defines the general rules for naming objects,
defining object type (including range and length),
showing how to encode object and values.
SMI does not define the number of objects, an
entity should manage or name the objects to be
managed or define the association between the
objects and their values.
September 4, 2013 14
SMI
15. To name objects.
To define the type of data that can be stored in the
object.
To show how to encode the data for transmission.
September 4, 2013 15
SMI FUNCTION
20. All objects managed by SNMP are given an object
identifier.
The object identifier always starts with 1.3.6.1.2.1.
September 4, 2013 20
OBJECT IDENTIFIER
24. Sequence (like structure)
• Combination of simple data types,not of same
type.
Sequence of (like array)
• Combination of simple data types all of same type.
September 4, 2013 24
STRUCTURED DATA TYPE
35. Five messages of SNMP
1.Get Request
->Sent by manager requesting specific data
from agent
2.Get Next Request
->Retrieves the next value of the next lexical
MIB variable.
3.Get Response
->Agent respond with data for get and set
requests from the manager.
September 4, 2013 35
SNMP MESSAGES
36. 4.Set Request
->Initializes or changes the value of network
element
5.Trap
->Alarm generated by an agent
September 4, 2013 36
SNMP MESSAGES
38. • Traps are unrequested event reports that are sent
to a management system by an SNMP agent
process
• When a trappable event occurs, a trap message is
generated by the agent and is sent to a trap
destination (a specific, configured network
address)
• Many events can be configured to signal a
trap, like a network cable fault, failing Hard
Drive, a “General Protection Fault”, or a power
supply failure
September 4, 2013 38
WHAT IS TRAP
39. • Traps can also be throttled -- You can limit the
number of traps sent per second from the agent
• Traps have a priority associated with them --
Critical, Major, Minor, Warning, Marginal,
Informational, Normal, Unknown
September 4, 2013 39
WHAT IS TRAP
40. (0).coldStart -agent has been booted
(1).warmStart -agent has been rebooted
(2).linkDown -interface has gone down
(3).Linkup -interface has come up
September 4, 2013 40
TRAP TYPES
43. September 4, 2013 43
COMMERCIAL SNMP APPLICATIONS
Here are some of the various SNMP Management products available today
•http://www.hp.com/go/openview/ HP OpenView
•http://www.tivoli.com/ IBM NetView
•http://www.novell.com/products/managewise/ Novell ManageWise
•http://www.sun.com/solstice/ Sun MicroSystems Solstice
•http://www.microsoft.com/smsmgmt/ Microsoft SMS Server
•http://www.compaq.com/products/servers/management/ Compaq Insight Manger
•http://www.redpt.com/ SnmpQL - ODBC Compliant
•http://www.empiretech.com/ Empire Technologies
•ftp://ftp.cinco.com/users/cinco/demo/ Cinco Networks NetXray
•http://www.netinst.com/html/snmp.html SNMP Collector (Win9X/NT)
•http://www.netinst.com/html/Observer.html Observer
•http://www.gordian.com/products_technologies/snmp.html Gordian’s SNMP Agent
•http://www.castlerock.com/ Castle Rock Computing
•http://www.adventnet.com/ Advent Network Management
•http://www.smplsft.com/ SimpleAgent, SimpleTester
44. Standardized
Universally supported
Extendible
Portable
Allows distributed management access
Light weight protocol
September 4, 2013 44
ADVANTAGES OF USING SNMP
45. TCP/IP protocol suite by Behrouz A. Forouzan.
Internetworking with TCP/IP,principles,protocols
and architectures by Douglas E. Comer.
Network management principles and practices by
mani Subhramanian.
http://en.wikipedia.org/wiki/Simple_Network_M
anagement_Protocol
http://www.erlang.org/doc/apps/snmp/snm
p.pdf
http://www.hit.bme.hu/~jakab/edu/litr/SNMP/s
nmp_basics.pdf
September 4, 2013 45
REFERENCES