This document provides instructions for setting up a wireless ad hoc network between two Windows 7 laptops to share files and internet access. The key steps are:
1. Create an ad hoc wireless network on one laptop and configure a WPA2 security key.
2. Join the ad hoc network from the other laptop and verify both laptops receive IP addresses on the same subnet.
3. Browse and share files between the laptops using the wireless connection.
4. Optionally, one laptop can share its wired internet connection by configuring its Ethernet interface for sharing. This allows the other laptop indirect internet access over the ad hoc wireless network.
Internet Protocol (IP) technology was developed in the 1970s to support some of the first research computer networks.
A simple IP Address is a lot more than just a number. It tells us the network that the workstation is part of and the node ID.
Today, IP has become a worldwide standard for home and business networking as well.
Our network routers, Web browsers, email programs, instant messaging software - all rely on IP
the TCP/IP protocol suite involves several methods that enables communication of which IP addressing is one of those pertinent subjects that must be considered if communication must be successful.
Internet Protocol (IP) technology was developed in the 1970s to support some of the first research computer networks.
A simple IP Address is a lot more than just a number. It tells us the network that the workstation is part of and the node ID.
Today, IP has become a worldwide standard for home and business networking as well.
Our network routers, Web browsers, email programs, instant messaging software - all rely on IP
the TCP/IP protocol suite involves several methods that enables communication of which IP addressing is one of those pertinent subjects that must be considered if communication must be successful.
IP Address is a unique identification given to Host, network device, server for data communication. IP
Address stand for Internet Protocol address, it is an addressing scheme used to identify a system on a
network. It is a unique address that certain electronic devices currently use to communicate with each
other on a network using internet protocol.
Wireless networks come in many different forms, cover various distances, and provide a range of low to
high bandwidth depending on the type installed. Wireless LAN – Wireless LAN enable Laptop users to
access the Network of a company.
the above ppt will provide info about ip addresses in a more practical way covering all the below mentioned topics
1. Network layer.
2. Elements of communication
3. What is ip address and its need
4. Ip address types
5. History
6. Structure of ip address
7. Public and private ips
8. Classes
9. Ip Address distribution
10. IPV6
CyberLab TCP/IP and IP Addressing & SubnettingVivek chan
This presentation of CyberLab explains how Transmission Control Protocol(TCP) Internet Protocol(IP) works and it also describes what is IP addressing and it's various classes. at the end of Presentation an overview of subnatting also given.
Visit:
www.cyberLabzone.com
IP Address is a unique identification given to Host, network device, server for data communication. IP
Address stand for Internet Protocol address, it is an addressing scheme used to identify a system on a
network. It is a unique address that certain electronic devices currently use to communicate with each
other on a network using internet protocol.
Wireless networks come in many different forms, cover various distances, and provide a range of low to
high bandwidth depending on the type installed. Wireless LAN – Wireless LAN enable Laptop users to
access the Network of a company.
the above ppt will provide info about ip addresses in a more practical way covering all the below mentioned topics
1. Network layer.
2. Elements of communication
3. What is ip address and its need
4. Ip address types
5. History
6. Structure of ip address
7. Public and private ips
8. Classes
9. Ip Address distribution
10. IPV6
CyberLab TCP/IP and IP Addressing & SubnettingVivek chan
This presentation of CyberLab explains how Transmission Control Protocol(TCP) Internet Protocol(IP) works and it also describes what is IP addressing and it's various classes. at the end of Presentation an overview of subnatting also given.
Visit:
www.cyberLabzone.com
Mobile Ad hoc Networks (MANET) has become an exciting and important technology in recent years because of the rapid proliferation of wireless devices. A mobile adhoc network consists of mobile nodes that can move freely in an open environment. Communicating nodes in a Mobile Adhoc Network usually seek the help of other intermediate nodes to establish communication channels. In such an environment, malicious intermediate nodes can be a threat to the security of conversation between mobile nodes. The security experience from the Wired Network world is of little use in Wireless Mobile Ad hoc networks, due to some basic di_erences between the two Networks. Therefore, some novel solutions are required to make Mobile Adhoc Network secure.
An Endorsement Based Mobile Payment System for A Disaster AreaNaoki Shibata
Babatunde Ojetunde, Naoki Shibata, Juntao Gao, and Minoru Ito : An Endorsement Based Mobile Payment System for A Disaster Area, to appear in Proc. of The 29th IEEE International Conference on Advanced Information Networking and Applications (AINA-2015), Mar. 2015.
A payment system in a disaster area is essential for people to buy necessities such as groceries, clothing, and medical supplies. However, existing payment systems require the needed communication infrastructures (like wired networks and cellular networks) to enable transactions, so that these systems cannot be relied on in disaster areas, where these communication infrastructures may be destroyed. In this paper, we propose a mobile payment system, adopting infrastructureless mobile adhoc networks (MANETs), which allow users to shop in disaster areas while providing secure transactions. Specifically, we propose an endorsement-based scheme to guarantee each transaction and a scheme to provide monitoring based on location information, and thus achieve transaction validity and reliability. Our mobile payment system can also prevent collusion between two parties and reset and recover attacks by any user. Security is ensured by using location-based mutual monitoring by nearby users, avoiding thereby double spending in the system.
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In a home network with several computers and devices, it is ideal to assign each of them a specific address. This is for the purpose of avoiding problems when you do troubleshooting which requires figuring out the IP address of each of them. It is also a means to prevent address conflicts between the devices. You can also manage them with ease if you have assigned their own addresses.
-Bridget Ann Yap
Supportive Security Policies in SOHOTopic SUPPORTIVE SECURI.docxpicklesvalery
Supportive Security Policies in SOHO
Topic: SUPPORTIVE SECURITY POLICIES IN SOHO
NETWORKING
It is a supportive system of sharing information and services among individuals and groups having a common interest.
A local-area network (LAN) is basically defined as two or more computers connected by a structured wire system for the purpose of sharing resources and files. In this chapter we will explain the various ‘structured wire systems’ that the Network Engineer will deal with during the course of their job. Wireless LANs are becoming more and more popular, but even these devices rely on some amount of physical wires in most cases.
REQUIREMENTS
Network Adapter
A computer needs a network adapter to connect to a network. It converts computer data into electronic signals. It listens for silence on the network cable and applies the data to it when it has an opportunity. The network access element of its job is called Media Access Control, or MAC. The physical address of every computer on a network is called its MAC address. The MAC address is the network adapter's serial number. Most computers are shipped with the network adapter integrated into the motherboard. However, early PCs didn't include this function and computer owners had to buy it separately and fit it into an expansion slot on the motherboard. These were called "network cards" because they were sold on a separate card. Although network adapters are now integrated, the name network card is still used. The wireless equivalent is called a Wireless Network Interface Controller.
Network Medium
Wired networks need cable. The most common form of cable used in networks is called the "Unshielded Twisted Pair." In PC shops, it is generally just referred to as "network cable" or "Ethernet cable." Ethernet is the most widely implemented set of standards for the physical properties of networks. UTP is so closely identified with Ethernet that it is often given that name. Other cable types used for networks are twin-axial, Shielded Twisted Pair and single-mode and multi-mode fiber optic cable. Wireless networks don't need cable; they send data on radio waves generated by the WNIC.
Cable Connectors
In wired networks, the most common form of connector is the RJ45. Every computer with networking capabilities has an RJ45 port. This is sometimes called a "network port" or an "Ethernet port." The RJ45 plug looks like a slightly larger telephone plug and connects the Unshielded Twisted Pair or the Shielded Twisted Pair cable.
Power Supply
Both wired and wireless networks need a power supply. A wireless network uses the current to generate radio waves. A cabled network sends data interpreted as an electronic pulse.
Hub/Switch/Router
In wired networks, one computer cannot connect to many others without some form of splitter. A hub is little more than a splitter. It repeats any signals coming into one of its ports out onto all its other ports. A cable leads from each port to one computer. A switch ...
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
Essentials of Automations: Optimizing FME Workflows with ParametersSafe Software
Are you looking to streamline your workflows and boost your projects’ efficiency? Do you find yourself searching for ways to add flexibility and control over your FME workflows? If so, you’re in the right place.
Join us for an insightful dive into the world of FME parameters, a critical element in optimizing workflow efficiency. This webinar marks the beginning of our three-part “Essentials of Automation” series. This first webinar is designed to equip you with the knowledge and skills to utilize parameters effectively: enhancing the flexibility, maintainability, and user control of your FME projects.
Here’s what you’ll gain:
- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
- Practical Applications in FME Form: Delve into key user parameter types including choice, connections, and file URLs. Allow users to control how a workflow runs, making your workflows more reusable. Learn to import values and deliver the best user experience for your workflows while enhancing accuracy.
- Optimization Strategies in FME Flow: Explore the creation and strategic deployment of parameters in FME Flow, including the use of deployment and geometry parameters, to maximize workflow efficiency.
- Pro Tips for Success: Gain insights on parameterizing connections and leveraging new features like Conditional Visibility for clarity and simplicity.
We’ll wrap up with a glimpse into future webinars, followed by a Q&A session to address your specific questions surrounding this topic.
Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
Let's dive deeper into the world of ODC! Ricardo Alves (OutSystems) will join us to tell all about the new Data Fabric. After that, Sezen de Bruijn (OutSystems) will get into the details on how to best design a sturdy architecture within ODC.
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A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
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/
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
1. Friday, April 29, 2016
Workshop on
Wireless Adhoc Networks in Windows7
Setup and Applications
Instructor: Ali Nezhad
School of Engineering Technology and Applied
Science
Department of Information and Communication
Engineering Technology
Computer Systems and Network
2. 1
Introduction
There are two kinds of Wireless Local Area Networks (WLAN); infrastructure and adhoc. You
most probably are familiar with the former and may have even been to our own workshop on
that topic. This workshop is focused on creating and using the latter in a Win7 environment.
Other versions of Windows are almost similarin this regard. It must be saidthat WiFi (IEEE802.11)
is the dominant protocol as far as WLANs are concerned but adhoc networks may be built using
other wireless technologies such as Bluetooth, Zigbee, etc.
Infrastructure vs. adhoc
In an infrastructure WLAN, wireless devices connect to a central device known as a base station
(a.k.a access point among other names). The most familiar example of such a network is your
WiFi network at home. The residential gateway, commonly known as router, is the access point
in your network, which all your wireless devices such as mobile phones, laptops and tablets
connect to in a star formation and can also allow Internet access through a modem connected to
your Internet Service Provider (ISP).
INTERNET
Figure.1 Infrastructure WLAN
3. 2
An adhoc wireless network on the other hand does not rely on a central access point. It allows
wireless devices to directly connect to each other and have the same role. The fact that these
networks do not rely on an infrastructure makes them ideal for extreme conditions such as
exploration, disaster recovery, etc.
In this workshop you will learn how to create an adhoc wireless network using two Win7 laptops
and then use it to share files between them. Furthermore, you will learn how to let one laptop
to connect to the Internet indirectly via the other laptop if it is connected to the Internet. Printer
sharing is another useful application but we will not attempt that.
Figure.2 Adhoc WLAN
IP Addressing and Subnetting
Before we start, let’s talk briefly about IP addresses. In a network, every device needs to be
somehow identified so that information may be delivered to it from other devices exactly like the
mailing system. In fact, a single device may have multiple IP addresses, one for each of its
networking interfaces. At this time, the dominant systemfor this purpose is called IPv4 and each
device in the network is identified by an IPv4 address or simply an IP address. Also, in the same
way that a city is divide up into many postal zones, a big network can be divided into subnetworks
or simply subnets. A subnet has an address of its own as well. In fact, eachIP address is comprised
of two main parts; a subnet ID and a host (meaning the device) ID. You can think of these as the
city name and the house number in a mailing address.
4. 3
An IPv4 address is actually a binary number consisting of 32 bits (1 or 0) and it also has an
equivalent decimal representation consisting of 4 decimal numbers (called octets) separated by
dots. In a big network, routers forwarding information packets only care about the subnet portion
of an IP address not the host portion exactly the same way a mail sorter at a national post office
only cares about the city name not the house numbers. So, how does a router know which part
of an address is the subnet ID and which part is the host ID? The answer is by using a subnet
mask. A subnet mask looks very much like an IP address except it has all 1s in the subnet portion
and all 0s in the host portion. However, we usually use the decimal representation of that.
By default there are only three major groups of IP addresses called classes A, B and C.
A class A address has the default subnet mask of 255.0.0.0 which means the first octet is all 1s
and therefore the first octet in any such address identifies the subnet.
A class B address has the default subnet mask of 255.255.0.0 which means the first and the
second octets are all1s and therefore the first two octets in any suchaddress identify the subnet.
A class Caddress has the default subnet mask of 255.255.255.0 which means the firstthree octets
are all 1s and therefore the first three octets in any such address identify the subnet.
Example:
192.168.1.1 with a subnet mask of 255.255.255.0 is a class C address and the subnet ID is
192.168.1.0.
Note: Two devices that belong to the same network share the same subnet ID and the same
subnet mask. For example, another device in the above network may have an address of
192.168.1.12.
5. 4
Objective
Enable 2 wireless laptops to share their files and also share a single Internet connection.
Procedure
A. Preparations
1- Each group is given 2 laptops. Log into your laptops with the password “wireless”.
2- Take note of the names of your PCs (e.g. CNET324-PC1) by going to
control panel system & security system
Computer1_Name: …………………… Computer2_Name: ……………………..
Figure.3 Computer name and other properties
3- Confirm that the wireless interfaces of both PCs are configured to obtain an IP address
automatically not manually. This will allow Windows to properly configure IP addresses
so that both laptops will belong to the same subnet and can communicate.
6. 5
Figure.4 IP addressing mode
B. Create an Adhoc Network
1- On one laptop, do the following:
Control panel Network & Internet Manage Wireless Networks Add create an adhocnetwork.
Figure.5 Adding a Wireless Network
7. 6
2- Give it a name such as adhoc1 for PC1.
3- Choose the security type. WPA2 is the preferred mode. Provide a security key which you will
remember.
Figure.6 Configuring the name and security mode of the adhoc network
Write your security key here: ……………………
4- At this point you can turn file sharing on or off. We will keep this at its default mode which is on.
C. Join the Adhoc Network
1- On both PCs join the adhoc wireless network. The PC which did not create the adhoc
network will have to provide the password which was configured by the other PC.
8. 7
Figure.7 Connect to the adhoc network
Note: First stop the PCs from automatically joining the CCwGuest, CCwSecure or any other
network. Otherwise, your work may be periodically interrupted as the connection jumps from
your adhoc network to another network automatically.
Figure.8 Prevent automaticconnections
9. 8
2- Launch a command prompt buy running “cmd” from the Windows Start menu.
3- Using the command “ipconfig” Verify that windows has provided both PCs with IP
addresses in the same subnet.
Figure.9 Find the IP address of your wireless interface
What are the IP addresses and the subnet masks of the wireless interfaces of your PCs?
Computer Name: IP Address: Mask:
Computer Name: IP Address: Mask:
10. 9
D. File Sharing
1- In Windows Explorer locate your peer PC under “Network”.
2- Browse the files on the peer PC. You can even stream a video or audio file.
Figure.10 Accessing files on the peer PC
E. Internet Sharing
If one of the devices has an extra networking interface it can allow the peer PC to use that
too. In this experiment we will enable one PC to share the Ethernet interface of the peer PC.
We will then connect that Ethernet interface to the Internet and allow the peer PC to gain
access as well.
Figure.11 Sharing a single Internet connection
Ethernet
11. 10
1- Configure the LAN interface for automatic IP addressing as you did in the preparation
step for the wireless interface.
2- At the same time, share this interface with other devices.
Figure.12 Allow sharing of the wired LAN interface
3- Test that both PCs can access websites on the Internet.
Free Practice
If there is time, feel free to experiment. For instance, join another group and try to
add three or 4 laptops to the same wireless ad hoc network.