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This document introduces VPN technology and its uses. It defines VPN as a technology that creates a direct link between remote computers in a private network over a public one using various protocols. It discusses how VPNs provide secure remote access and communications, enhancing productivity and flexibility by allowing access from anywhere. VPNs allow sharing of files and access to information securely from remote locations. They also circumvent censorship and geolocation blocks by making restricted data and contacts available. The document demonstrates VPN technologies like PPTP, L2TP, IPsec and SSL that provide secure data transfer over the internet.
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This document discusses attacks on wireless networks. It begins with an introduction to wireless technologies like WiFi that operate using IEEE 802.11 standards and components like wireless clients, access points, and antennas. It then explains how hackers can attack wireless networks by first finding the network, studying its traffic and security mechanisms, and then launching attacks like denial-of-service (DOS) attacks, man-in-the-middle attacks (MITM) using ARP poisoning/spoofing, and DNS spoofing attacks. The document concludes by stating that a demonstration of these attacks will be shown.
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This document discusses WiFi security and provides information on various topics related to securing wireless networks. It begins with an introduction to wireless networking and then covers security threats like eavesdropping and man-in-the-middle attacks. The document analyzes early security protocols like WEP that were flawed and discusses improved protocols like WPA and WPA2. It provides tips for securing a wireless network and examines potential health effects of WiFi radiation. The conclusion emphasizes that wireless security has improved greatly with new standards but work remains to be done.
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The Indonesian Community for Hackers and Open Source (ECHO) is a group focused on hacking and open source activities. Founded in 2003, ECHO has 13 staff members and over 11,000 mailing list members. The group publishes newsletters, advisories, and maintains forums to share information about hacking techniques and open source projects.
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This document provides an overview of firewalls including:
- A firewall is a system that prevents unauthorized access to or from a private network by examining incoming and outgoing messages and blocking those that do not meet security criteria.
- Firewall technology emerged in the late 1980s when the internet became more globally used.
- There are different types of firewalls including network layer, application layer, proxies, hardware, and software firewalls.
- Firewalls work by allowing or denying traffic based on criteria like traffic type, source/destination addresses and ports, and can analyze application data.
- Firewalls are useful for both personal and organizational network protection but have limitations like not enforcing passwords or stopping internal users from accessing malicious
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This document summarizes key concepts related to encryption and network security. It defines a VPN as a virtual private network that exists over an existing network, often referred to as a VPN tunnel. It also defines TCP/IP as the communication protocols used for the Internet and similar networks. Additionally, it explains that a key determines the output of a cryptographic algorithm and that firewalls are used to prevent unauthorized access to private networks connected to the Internet.
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This document discusses the history and evolution of wireless networking standards, including early versions like ALOHAnet, as well as common wireless encryption protocols like WEP, WPA, and WPA2. It explains how each standard works on a technical level and its weaknesses, such as WEP having only 24-bit initialization vectors that could be exhausted in a few hours, making it trivial to crack. Later standards like WPA and WPA2 aimed to fix these issues through techniques like dynamic session keys and stronger encryption algorithms to provide more secure wireless networking.
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This document discusses WiFi technology, wireless devices, and wireless security. It provides an overview of WiFi including that it uses 2.4GHz and 5.8GHz bands and SSIDs to identify networks. Common wireless devices are access points, stations, routers, and repeaters. Basic security methods are disabling SSID broadcast and using MAC address filtering, but WPA2 is recommended. Instructions are given for configuring an ESP32 as a WiFi station to scan for networks and as a soft AP.
Wireless Security null seminar
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1) Introduction to WLAN Security
2) Wardriving
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The document discusses wireless network penetration testing techniques. It demonstrates automated cracking of WEP and WPA networks using tools like aircrack-ng. It also covers bypassing MAC address filtering and cracking WPA2 networks using Reaver by exploiting WPS. The document provides information on wireless standards like 802.11a/b/g/n and their characteristics. It describes common wireless encryption and authentication methods including WEP, WPA, WPA2 etc. Finally, it includes checklists for wireless vulnerability assessments and requirements for wireless cracking labs.
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karsof systems ips technical brochure
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Virtual private networks (VPNs) allow for secure data transmission over public networks like the Internet. VPNs create virtual tunnels between devices to securely transmit encrypted data. There are three main types of VPNs: remote-access VPNs for remote users, intranet-based site-to-site VPNs to connect locations within a company, and extranet-based site-to-site VPNs to connect companies. VPNs use protocols like IPsec and SSL to encrypt data and tunneling protocols to transmit data securely between devices.
Virtual private networks
Virtual private networks (VPNs) allow users to securely access an internal network from remote locations over a public network like the internet. VPNs use tunneling protocols to encrypt data transmission and make it appear as if the remote computer is part of the private network. There are various VPN implementation methods, including those using IPSec, MPLS, PPTP, or L2TP. MPLS VPNs in particular offer scalability and centralized services like multicast and quality of service controls. VPNs provide security through authentication, encryption, and authorization controls to prevent unauthorized access to internal network resources.
Virtual private network feature and benefits
Virtual Private Network (VPN) allows users to securely access remote networks and resources as if they were locally connected. It works by encrypting data in transit and tunneling internet connections to maintain integrity and confidentiality. VPNs offer benefits like remote access to files/devices, connecting branch offices globally, and accessing restricted websites by changing the IP address. There are different types of VPN connections that use various encryption protocols at different layers. VPN services are an easy and flexible way for businesses and individuals to securely access networks from anywhere at any time on any device.
Vpn
This document provides an overview of virtual private networks (VPNs). It discusses how VPNs use public networks like the Internet to securely connect remote locations privately. VPNs allow authorized users to access a private network from anywhere for applications like remote access and site-to-site connectivity. The document outlines key VPN concepts, technologies, protocols, functions, examples, advantages in reducing costs, and some challenges in deployment.
Network access layer security protocol
Chapter 4. Internet Security Protocol
Part1- Network access layer security protocol
Types of Network access layer security protocol:
1) L2FP-Layer 2 Forwarding Protocol
2)PPP-Point-to-Point Protocol
3)L2TP-Layer 2 Tunneling Protocol
4)VPN-Virtual Private Network
VPN.pptx
A VPN (Virtual Private Network) allows users to securely connect to a private network over the public internet by encrypting data packets. It works by routing internet traffic through a private VPN server rather than the user's internet service provider. This disguises the user's true IP address and location. VPNs use encryption protocols like OpenVPN, PPTP, and L2TP/IPSec to encrypt traffic within a private "tunnel," protecting users from hacking and surveillance when connecting over public networks. While not foolproof, a VPN is a good method for maintaining online privacy and security, especially when using public WiFi. Different protocols offer varying levels of encryption and compatibility.
10 Protocols of VPN IPSec, PPTP, L2TP, MPLS etc. ⋆ IPCisco.pdf
The document discusses VPN types and protocols. There are two main VPN types - remote access VPN which allows remote users to access a private network, and site-to-site VPN which connects different company sites. Common VPN protocols described include IPSec, L2TP, PPTP, MPLS VPN, SSTP, and IKEv2. Each protocol provides a different level of security for VPN connections.
Blug Talk
The document discusses the history and development of virtual private networks (VPNs). It explains that early VPNs used IPSec but had problems with complexity and interoperability. This led to the development of user-space VPNs using virtual network interfaces and encapsulating IP packets in UDP for transmission over public networks like the internet. OpenVPN is highlighted as an open-source user-space VPN that follows this model and provides a more portable and easier to configure alternative to IPSec VPNs.
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10 Protocols of VPN IPSec, PPTP, L2TP, MPLS etc. ⋆ IPCisco.pdf
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This document introduces VPN technology and its uses. It defines VPN as a technology that creates a direct link between remote computers in a private network over a public one using various protocols. It discusses how VPNs provide secure remote access and communications, enhancing productivity and flexibility by allowing access from anywhere. VPNs allow sharing of files and access to information securely from remote locations. They also circumvent censorship and geolocation blocks by making restricted data and contacts available. The document demonstrates VPN technologies like PPTP, L2TP, IPsec and SSL that provide secure data transfer over the internet.
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This document discusses mobile app revenues and usage. It projects that global mobile app revenues will grow from $41.1 billion in 2015 to over $101 billion in 2020. It notes that with over 2.56 billion smartphone users expected in 2018, mobile apps have become an important part of many individuals' lives. The document aims to convince clients that developing a mobile app can provide fast and easy use, a nice design, downloads, optimization, real numbers, and financial gains over time and money.
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Vpn presnt
- 1. 2015-2016 Introduction of VPN solution By Nour frikha & Becem Adid 1
- 2. Home Office Nour frikha & Becem Adid 2
- 4. What’s VPN Technology that creates a direct link between remote computers in private network over a public one. carrier protocol encapsulation protocol passenger protocol Nour frikha & Becem Adid 4
- 5. Nour frikha & Becem Adid Logical solution for remote access. Secure communications. Trylored to individuals. Enhancing productivity. Increase flexibility (anytime and anywhere give employers to access). Reduce costs of communications. Thanks to VPN technology employers can take their office and make flexible work schedule. What’s VPN 5
- 6. VPN function Security connect in same private network access to the information in secure way (remote computers) from any plce in the word Nour frikha & Becem Adid 6
- 7. VPN allows: Media files Nour frikha & Becem Adid 7
- 8. • Private traffic and safe from hacker and sniffer and other danger in internet (virus or pirates). • Crypted and secure communication become anonymous online. Nour frikha & Becem Adid 8
- 9. VPN Because of geolocation block connect ( video , news , search ) non available data Nour frikha & Becem Adid 9
- 10. online contact for government censorship : let the information be available for users and give the key to more freedom Nour frikha & Becem Adid 10
- 11. VPN uses : PPTP PPTP (Point-to-Point Tunneling Protocol) tunnel protocol point-to-point is a PPP encapsulation over IP developed by Microsoft. L2TP Layer 2 Tunnelling Protocol is a tunnelling protocol used to support virtual private networks (VPNs) It does not provide any encryption or confidentiality by itself. IPSEC Internet Protocol Security (IPsec) allows two or more hosts to communicate in a secure manner by authenticating and encrypting each IP packet of a communication session SSL(TLS) Secure Sockets Layer (SSL) VPN is an emerging technology that provides remote-access VPN capability and allows users from any Internet-enabled location to launch a web browser to establish remote-access VPN connections VPNto provide security of data transfer from danger of internet Nour frikha & Becem Adid 11
- 12. Demo Nour frikha & Becem Adid 12
- 13. Thank you for attention Nour frikha & Becem Adid 13
Editor's Notes
- private secure method where we can share bussiness communication but also have limations bcs this can be expensive and often when the distance increase and employers were required to go the office to access to resources