This document provides an outline for a presentation on computer networking concepts. It will cover topics like network services (DNS, DHCP, NAT), connecting to the internet (dial-up, broadband, wireless), troubleshooting (connectivity, DNS), and the future of networking (cloud, IPv6). Each section is broken down into subtopics with definitions of key networking terms. References and resources are also provided for further learning.
Wireshark is a free and powerful packet analyzer tool that is essential for network engineers to inspect packets, measure network performance, and improve security through firewall filtering, cyber forensics, and analyzing attacker behavior. More details on using Wireshark are available in videos on the author's YouTube channel.
Wireshark is a free and powerful packet analyzer tool that is essential for network engineers to inspect packets, measure network performance, and improve security through firewall filtering, cyber forensics, and analyzing attacker behavior. More details on using Wireshark are available in videos on the author's YouTube channel.
Wireshark is a free and powerful packet analyzer tool that is essential for network engineers to inspect packets, measure network performance, and improve security through firewall filtering, cyber forensics, and analyzing attacker behavior. More details on using Wireshark are available in videos on the author's YouTube channel.
This document discusses cracking WEP secured wireless networks. It begins by explaining that WEP is an outdated protocol with known weaknesses that can be cracked within minutes using readily available software. It then provides details on WEP authentication methods and how the encryption works. The main weakness discussed is that the 24-bit initialization vector is not long enough to ensure uniqueness, allowing the key to be cracked. The document concludes by demonstrating how to enable monitor mode, attack a target network to capture packets, and use those packets to crack the WEP key in minutes using aircrack-ng software on BackTrack Linux. It advises moving to more secure WPA or WPA2 encryption.
This document discusses how to crack WEP and WPA wireless networks and how to better secure wireless networks. It provides steps on how to crack WEP networks using Aircrack tools like Airodump and Aircrack by capturing initialization vectors and cracking the WEP key. It also discusses cracking WPA networks is harder and involves capturing data using Airodump and cracking passwords using Aircrack and a dictionary word list. The document concludes by providing tips to secure wireless networks like changing default passwords, disabling SSID broadcast, turning off the network when not in use, using MAC address filtering, and strong encryption like WPA with long random keys.
The document summarizes research into the Red Star OS operating system used in North Korea. Key findings include:
1) Red Star OS is based on Linux and resembles Windows XP or Mac OS X. It includes custom firewall software called Pyongyang Fortress which is derived from the open-source Snort network intrusion detection system.
2) Analysis of Pyongyang Fortress found it to be security theater with binaries that were much smaller than their open source counterparts and lacked full functionality.
3) Tests of censorship detection found that internet requests were not modified or blocked from within Red Star OS, suggesting censorship occurs at the intranet level before internet access.
Wired Equivalent Privacy (WEP) is an easily broken security algorithm for IEEE 802.11 wireless networks. Introduced as part of the original 802.11 standard ratified in September 1999, its intention was to provide data confidentiality comparable to that of a traditional wired network.
Wireshark is a free and powerful packet analyzer tool that is essential for network engineers to inspect packets, measure network performance, and improve security through firewall filtering, cyber forensics, and analyzing attacker behavior. More details on using Wireshark are available in videos on the author's YouTube channel.
Wireshark is a free and powerful packet analyzer tool that is essential for network engineers to inspect packets, measure network performance, and improve security through firewall filtering, cyber forensics, and analyzing attacker behavior. More details on using Wireshark are available in videos on the author's YouTube channel.
Wireshark is a free and powerful packet analyzer tool that is essential for network engineers to inspect packets, measure network performance, and improve security through firewall filtering, cyber forensics, and analyzing attacker behavior. More details on using Wireshark are available in videos on the author's YouTube channel.
This document discusses cracking WEP secured wireless networks. It begins by explaining that WEP is an outdated protocol with known weaknesses that can be cracked within minutes using readily available software. It then provides details on WEP authentication methods and how the encryption works. The main weakness discussed is that the 24-bit initialization vector is not long enough to ensure uniqueness, allowing the key to be cracked. The document concludes by demonstrating how to enable monitor mode, attack a target network to capture packets, and use those packets to crack the WEP key in minutes using aircrack-ng software on BackTrack Linux. It advises moving to more secure WPA or WPA2 encryption.
This document discusses how to crack WEP and WPA wireless networks and how to better secure wireless networks. It provides steps on how to crack WEP networks using Aircrack tools like Airodump and Aircrack by capturing initialization vectors and cracking the WEP key. It also discusses cracking WPA networks is harder and involves capturing data using Airodump and cracking passwords using Aircrack and a dictionary word list. The document concludes by providing tips to secure wireless networks like changing default passwords, disabling SSID broadcast, turning off the network when not in use, using MAC address filtering, and strong encryption like WPA with long random keys.
The document summarizes research into the Red Star OS operating system used in North Korea. Key findings include:
1) Red Star OS is based on Linux and resembles Windows XP or Mac OS X. It includes custom firewall software called Pyongyang Fortress which is derived from the open-source Snort network intrusion detection system.
2) Analysis of Pyongyang Fortress found it to be security theater with binaries that were much smaller than their open source counterparts and lacked full functionality.
3) Tests of censorship detection found that internet requests were not modified or blocked from within Red Star OS, suggesting censorship occurs at the intranet level before internet access.
Wired Equivalent Privacy (WEP) is an easily broken security algorithm for IEEE 802.11 wireless networks. Introduced as part of the original 802.11 standard ratified in September 1999, its intention was to provide data confidentiality comparable to that of a traditional wired network.
The document discusses Cloudflare's globally distributed network and how the concept of "the edge" is evolving. Some key points:
- Cloudflare operates over 155 network points of presence in more than 72 countries, handling over 600 billion web requests and 100 billion DNS requests daily.
- The edge used to refer to client-server relationships but now refers to distributed, peer-to-peer, and serverless architectures enabled by technologies like edge computing and 5G.
- This shifting edge has implications for network design and security, requiring approaches like mesh networks, automation, and lightweight compute at the network boundaries.
- Cloudflare aims to deploy its edge infrastructure within 10 milliseconds of all internet users.
Keeping the Internet Fast and Resilient for You and Your CustomersCloudflare
Many of the most common uses of the Internet today weren’t envisioned when it was created. In many ways, the success of the Internet and the TCP/IP protocol once envisioned by DARPA is pushing it to the limits. As a result, ensuring high-performance for end-users is complicated. Join Cloudflare experts for a talk that will describe the depth of these problems -- ranging from how routing breaks, to how shortage of IP space (under IPv4) hurts performance, to route leaks -- and how these issues lead to congestion and poor performance. They'll also discuss an approach to solving these challenges given the constraints.
Webinar topic: IPv6 with Mikrotik
Presenter: Achmad Mardiansyah
In this webinar series, We are discussing IPv6 with Mikrotik
Please share your feedback or webinar ideas here: http://bit.ly/glcfeedback
Check our schedule for future events: https://www.glcnetworks.com/en/
Follow our social media for updates: Facebook, Instagram, YouTube Channel, and telegram
The recording is available On :
https://youtu.be/C8Tfh1a9y20
Slides for a college course at City College San Francisco. Based on "Hands-On Ethical Hacking and Network Defense, Third Edition" by Michael T. Simpson, Kent Backman, and James Corley -- ISBN: 9781285454610.
Instructor: Sam Bowne
Class website: https://samsclass.info/123/123_S17.shtml
Webinar topic: Internet Protocol Deep-Dive
Presenter: Achmad Mardiansyah
In this webinar series, we discussed about Internet Protocol Deep-Dive
Please share your feedback or webinar ideas here: http://bit.ly/glcfeedback
Check our schedule for future events: https://www.glcnetworks.com/en/schedule/
Follow our social media for updates: Facebook, Instagram, YouTube Channel, and telegram also discord
Recording available on Youtube
https://youtu.be/u8_FxpNfqAs
This document discusses Network Address Translation (NAT) and how it allows private IP networks to connect to the Internet. It covers the problems of IP address exhaustion and depletion of IPv4 addresses. NAT enables private networks using unregistered IP addresses to connect to the public network by translating private IP addresses to public IP addresses. The document defines key NAT terms and describes how NAT is implemented on a router with inside and outside interfaces to translate packet headers. It also covers the types and advantages of NAT, including connecting multiple computers to the Internet using a single public IP address, as well as some disadvantages like added delay.
CN 5151(15) Module II part 2 13082020.pdfADARSHN40
The document provides information about computer networks and the network layer. It discusses network layer services like packetizing, routing, and forwarding. It also covers IPV4 addressing including address space, classful and classless addressing, subnetting, and special addresses. The network layer protocols Internet Protocol (IP) and Dynamic Host Configuration Protocol (DHCP) are explained. IP topics include the datagram format, fragmentation, and auxiliary protocols. DHCP is described as a client-server protocol that dynamically assigns IP addresses and other network parameters to hosts.
Webinar topic: Up and Running DNS Service
Presenter: Achmad Mardiansyah
In this webinar series, Up and Running DNS Service
Please share your feedback or webinar ideas here: http://bit.ly/glcfeedback
Check our schedule for future events: https://www.glcnetworks.com/en/schedule/
Follow our social media for updates: Facebook, Instagram, YouTube Channel, and telegram also discord
Recording available on Youtube
https://youtu.be/V7Soqp_Rs7w
This document appears to be from a CISSP mentor program session discussing communication and network security topics. It includes a quiz on network protocols and technologies like UDP, TCP ports, OSI layers, and IPv6 tunneling. It also summarizes wired WAN protocols like T1/E1 lines, Frame Relay, X.25, ATM, MPLS, and storage protocols like FCoE, FCIP and iSCSI. The session aims to help students studying for the CISSP exam.
Internet Of Things: Hands on: YOW! nightAndy Gelme
Introduction to the Internet Of Things ... using the MeshThing hardware running Contiki mesh-networking software for IPv6 / 6LoWPAN. Also, Daryl Wilding McBride (@darylwmcb) covers building a quadcopter for the Outback Joe competition.
This document provides an overview of network security concepts related to the OSI model, TCP/IP, IP networking, and multi-layer protocols. It describes the seven layers of the OSI model and compares it to the TCP/IP model. It discusses IP addressing schemes, routing protocols, TCP/IP ports, DHCP, ICMP, and networking services like DNS, LDAP, FTP, SMTP, and HTTP. It also covers implications of industrial control systems that use multi-layer protocols like SCADA and Modbus.
How Networking works with Data Science HungWei Chiu
Introduce the basic concept of networking model, including the OSI model and TCP/IP model.
Also introduce basic ideas/function in networking, such as routing, classification, security..etc
Swiss IPv6 Council: The Cisco-Journey to an IPv6-only BuildingDigicomp Academy AG
Die monatlichen Anlässe in Zusammenarbeit mit dem Swiss IPv6 Council behandeln verschiedene technische Themenbereiche von IPv6.
Ist Dual-Stack ein guter Weg? Was sind Erfahrungen mit reinen IPv6-Netzwerken? Viele Unternehmen kämpfen mit diesen Fragen. Genau aus diesem Grund hat Cisco in San Jose einen reinen IPv6-Campus eingerichtet und sucht Antworten auf solche Fragen.
In seinem Referat präsentierte Khalid Jawaid die Bemühungen zur Einführung von IPv6 in einem einzelnen Campusgebäude und die Hürden, die dies mit sich bringt. Im Weiteren sprach er über die Herausforderungen, die sich aus der Erstellung des Business Case im Jahr 2010 und der Bereitstellung von mehr als 400 Remote-Standorten und den daraus gezogenen Lehren ergaben.
Die Inputs von Khalid Jawaid haben bei vielen Teilnehmern neue Perspektiven und Ideen für die Einführung von IPv6 geweckt.
Gerne stellen wir Ihnen die Slides von Manuel Schweizer zur Verfügung:
Internet Week 2018: 1.1.1.0/24 A report from the (anycast) trenchesAPNIC
APNIC Senior R&D Scientist George Michaelson and Yoshinobu Matzusaki present on the operational trends accompanying worldwide deployment of public DNS service 1.1.1.1 at Internet Week 2018 in Tokyo, Japan from 27 to 30 November 2018.
Webinar topic: Troubleshooting Layer 2 Ethernet Problem: Loop, Broadcast, Security
Presenter: Achmad Mardiansyah, M. Taufik Nurhuda
In this webinar series, Troubleshooting Layer 2 Ethernet Problem: Loop, Broadcast, Security
Please share your feedback or webinar ideas here: http://bit.ly/glcfeedback
Check our schedule for future events: https://www.glcnetworks.com/en/schedule/
Follow our social media for updates: Facebook, Instagram, YouTube Channel, and telegram also discord
Recording available on Youtube
https://youtu.be/G4IuMNaJZLY
This document summarizes a presentation by Michael Nelson and Martin Levy of Cloudflare on the future of the internet. Some of the key points made in the presentation include:
- The internet is changing faster than ever before and it is difficult to see the changes happening in the underlying infrastructure.
- Focus should be placed on data rather than the network itself.
- The edge is where much of the innovation and action will take place going forward through services like Cloudflare Workers that allow running custom code at the edge.
- Trends include replacing hardware with cloud services, having intelligent systems optimize performance and security at the edge, and democratizing the web through application platforms.
The document provides information about CCNA training and certification. It discusses the topics covered in the CCNA exam, recommended training courses, study materials, exam format and structure. The CCNA certification tests knowledge of network fundamentals, switching, routing, WAN technologies, security and management. Exams last 90 minutes and contain around 50-60 multiple choice and simulation questions. Common jobs requiring the CCNA include network administrator, database administrator and help desk technician.
This slide deck covers Networking Fundamentals, Various Penetration testing standards, OWASP TOP 10 Vulnerabilities of Web Application and the Lab Setup required for Penetration testing.
This document contains lecture notes on fundamentals of computer systems from Dr. Atif Shahzad. It covers topics such as logic, Boolean algebra, memory, CPU, registers, fetch-execute cycle, file management, networking, OSI model, LAN, WAN, communication protocols, latency, capacity, broadcast, firewalls, and network speeds. The document provides definitions and explanations of key computer science concepts.
Webinar topic: Building Indoor Wireless Network
Presenter: Achmad Mardiansyah
In this webinar series, We are discussing Building Indoor Wireless Network
Please share your feedback or webinar ideas here: http://bit.ly/glcfeedback
Check our schedule for future events: https://www.glcnetworks.com/en/schedule/
Follow our social media for updates: Facebook, Instagram, YouTube Channel, and telegram
Recording available on Youtube
https://youtu.be/_kJL6Tq5iqE
Skybuffer SAM4U tool for SAP license adoptionTatiana Kojar
Manage and optimize your license adoption and consumption with SAM4U, an SAP free customer software asset management tool.
SAM4U, an SAP complimentary software asset management tool for customers, delivers a detailed and well-structured overview of license inventory and usage with a user-friendly interface. We offer a hosted, cost-effective, and performance-optimized SAM4U setup in the Skybuffer Cloud environment. You retain ownership of the system and data, while we manage the ABAP 7.58 infrastructure, ensuring fixed Total Cost of Ownership (TCO) and exceptional services through the SAP Fiori interface.
5th LF Energy Power Grid Model Meet-up SlidesDanBrown980551
5th Power Grid Model Meet-up
It is with great pleasure that we extend to you an invitation to the 5th Power Grid Model Meet-up, scheduled for 6th June 2024. This event will adopt a hybrid format, allowing participants to join us either through an online Mircosoft Teams session or in person at TU/e located at Den Dolech 2, Eindhoven, Netherlands. The meet-up will be hosted by Eindhoven University of Technology (TU/e), a research university specializing in engineering science & technology.
Power Grid Model
The global energy transition is placing new and unprecedented demands on Distribution System Operators (DSOs). Alongside upgrades to grid capacity, processes such as digitization, capacity optimization, and congestion management are becoming vital for delivering reliable services.
Power Grid Model is an open source project from Linux Foundation Energy and provides a calculation engine that is increasingly essential for DSOs. It offers a standards-based foundation enabling real-time power systems analysis, simulations of electrical power grids, and sophisticated what-if analysis. In addition, it enables in-depth studies and analysis of the electrical power grid’s behavior and performance. This comprehensive model incorporates essential factors such as power generation capacity, electrical losses, voltage levels, power flows, and system stability.
Power Grid Model is currently being applied in a wide variety of use cases, including grid planning, expansion, reliability, and congestion studies. It can also help in analyzing the impact of renewable energy integration, assessing the effects of disturbances or faults, and developing strategies for grid control and optimization.
What to expect
For the upcoming meetup we are organizing, we have an exciting lineup of activities planned:
-Insightful presentations covering two practical applications of the Power Grid Model.
-An update on the latest advancements in Power Grid -Model technology during the first and second quarters of 2024.
-An interactive brainstorming session to discuss and propose new feature requests.
-An opportunity to connect with fellow Power Grid Model enthusiasts and users.
The document discusses Cloudflare's globally distributed network and how the concept of "the edge" is evolving. Some key points:
- Cloudflare operates over 155 network points of presence in more than 72 countries, handling over 600 billion web requests and 100 billion DNS requests daily.
- The edge used to refer to client-server relationships but now refers to distributed, peer-to-peer, and serverless architectures enabled by technologies like edge computing and 5G.
- This shifting edge has implications for network design and security, requiring approaches like mesh networks, automation, and lightweight compute at the network boundaries.
- Cloudflare aims to deploy its edge infrastructure within 10 milliseconds of all internet users.
Keeping the Internet Fast and Resilient for You and Your CustomersCloudflare
Many of the most common uses of the Internet today weren’t envisioned when it was created. In many ways, the success of the Internet and the TCP/IP protocol once envisioned by DARPA is pushing it to the limits. As a result, ensuring high-performance for end-users is complicated. Join Cloudflare experts for a talk that will describe the depth of these problems -- ranging from how routing breaks, to how shortage of IP space (under IPv4) hurts performance, to route leaks -- and how these issues lead to congestion and poor performance. They'll also discuss an approach to solving these challenges given the constraints.
Webinar topic: IPv6 with Mikrotik
Presenter: Achmad Mardiansyah
In this webinar series, We are discussing IPv6 with Mikrotik
Please share your feedback or webinar ideas here: http://bit.ly/glcfeedback
Check our schedule for future events: https://www.glcnetworks.com/en/
Follow our social media for updates: Facebook, Instagram, YouTube Channel, and telegram
The recording is available On :
https://youtu.be/C8Tfh1a9y20
Slides for a college course at City College San Francisco. Based on "Hands-On Ethical Hacking and Network Defense, Third Edition" by Michael T. Simpson, Kent Backman, and James Corley -- ISBN: 9781285454610.
Instructor: Sam Bowne
Class website: https://samsclass.info/123/123_S17.shtml
Webinar topic: Internet Protocol Deep-Dive
Presenter: Achmad Mardiansyah
In this webinar series, we discussed about Internet Protocol Deep-Dive
Please share your feedback or webinar ideas here: http://bit.ly/glcfeedback
Check our schedule for future events: https://www.glcnetworks.com/en/schedule/
Follow our social media for updates: Facebook, Instagram, YouTube Channel, and telegram also discord
Recording available on Youtube
https://youtu.be/u8_FxpNfqAs
This document discusses Network Address Translation (NAT) and how it allows private IP networks to connect to the Internet. It covers the problems of IP address exhaustion and depletion of IPv4 addresses. NAT enables private networks using unregistered IP addresses to connect to the public network by translating private IP addresses to public IP addresses. The document defines key NAT terms and describes how NAT is implemented on a router with inside and outside interfaces to translate packet headers. It also covers the types and advantages of NAT, including connecting multiple computers to the Internet using a single public IP address, as well as some disadvantages like added delay.
CN 5151(15) Module II part 2 13082020.pdfADARSHN40
The document provides information about computer networks and the network layer. It discusses network layer services like packetizing, routing, and forwarding. It also covers IPV4 addressing including address space, classful and classless addressing, subnetting, and special addresses. The network layer protocols Internet Protocol (IP) and Dynamic Host Configuration Protocol (DHCP) are explained. IP topics include the datagram format, fragmentation, and auxiliary protocols. DHCP is described as a client-server protocol that dynamically assigns IP addresses and other network parameters to hosts.
Webinar topic: Up and Running DNS Service
Presenter: Achmad Mardiansyah
In this webinar series, Up and Running DNS Service
Please share your feedback or webinar ideas here: http://bit.ly/glcfeedback
Check our schedule for future events: https://www.glcnetworks.com/en/schedule/
Follow our social media for updates: Facebook, Instagram, YouTube Channel, and telegram also discord
Recording available on Youtube
https://youtu.be/V7Soqp_Rs7w
This document appears to be from a CISSP mentor program session discussing communication and network security topics. It includes a quiz on network protocols and technologies like UDP, TCP ports, OSI layers, and IPv6 tunneling. It also summarizes wired WAN protocols like T1/E1 lines, Frame Relay, X.25, ATM, MPLS, and storage protocols like FCoE, FCIP and iSCSI. The session aims to help students studying for the CISSP exam.
Internet Of Things: Hands on: YOW! nightAndy Gelme
Introduction to the Internet Of Things ... using the MeshThing hardware running Contiki mesh-networking software for IPv6 / 6LoWPAN. Also, Daryl Wilding McBride (@darylwmcb) covers building a quadcopter for the Outback Joe competition.
This document provides an overview of network security concepts related to the OSI model, TCP/IP, IP networking, and multi-layer protocols. It describes the seven layers of the OSI model and compares it to the TCP/IP model. It discusses IP addressing schemes, routing protocols, TCP/IP ports, DHCP, ICMP, and networking services like DNS, LDAP, FTP, SMTP, and HTTP. It also covers implications of industrial control systems that use multi-layer protocols like SCADA and Modbus.
How Networking works with Data Science HungWei Chiu
Introduce the basic concept of networking model, including the OSI model and TCP/IP model.
Also introduce basic ideas/function in networking, such as routing, classification, security..etc
Swiss IPv6 Council: The Cisco-Journey to an IPv6-only BuildingDigicomp Academy AG
Die monatlichen Anlässe in Zusammenarbeit mit dem Swiss IPv6 Council behandeln verschiedene technische Themenbereiche von IPv6.
Ist Dual-Stack ein guter Weg? Was sind Erfahrungen mit reinen IPv6-Netzwerken? Viele Unternehmen kämpfen mit diesen Fragen. Genau aus diesem Grund hat Cisco in San Jose einen reinen IPv6-Campus eingerichtet und sucht Antworten auf solche Fragen.
In seinem Referat präsentierte Khalid Jawaid die Bemühungen zur Einführung von IPv6 in einem einzelnen Campusgebäude und die Hürden, die dies mit sich bringt. Im Weiteren sprach er über die Herausforderungen, die sich aus der Erstellung des Business Case im Jahr 2010 und der Bereitstellung von mehr als 400 Remote-Standorten und den daraus gezogenen Lehren ergaben.
Die Inputs von Khalid Jawaid haben bei vielen Teilnehmern neue Perspektiven und Ideen für die Einführung von IPv6 geweckt.
Gerne stellen wir Ihnen die Slides von Manuel Schweizer zur Verfügung:
Internet Week 2018: 1.1.1.0/24 A report from the (anycast) trenchesAPNIC
APNIC Senior R&D Scientist George Michaelson and Yoshinobu Matzusaki present on the operational trends accompanying worldwide deployment of public DNS service 1.1.1.1 at Internet Week 2018 in Tokyo, Japan from 27 to 30 November 2018.
Webinar topic: Troubleshooting Layer 2 Ethernet Problem: Loop, Broadcast, Security
Presenter: Achmad Mardiansyah, M. Taufik Nurhuda
In this webinar series, Troubleshooting Layer 2 Ethernet Problem: Loop, Broadcast, Security
Please share your feedback or webinar ideas here: http://bit.ly/glcfeedback
Check our schedule for future events: https://www.glcnetworks.com/en/schedule/
Follow our social media for updates: Facebook, Instagram, YouTube Channel, and telegram also discord
Recording available on Youtube
https://youtu.be/G4IuMNaJZLY
This document summarizes a presentation by Michael Nelson and Martin Levy of Cloudflare on the future of the internet. Some of the key points made in the presentation include:
- The internet is changing faster than ever before and it is difficult to see the changes happening in the underlying infrastructure.
- Focus should be placed on data rather than the network itself.
- The edge is where much of the innovation and action will take place going forward through services like Cloudflare Workers that allow running custom code at the edge.
- Trends include replacing hardware with cloud services, having intelligent systems optimize performance and security at the edge, and democratizing the web through application platforms.
The document provides information about CCNA training and certification. It discusses the topics covered in the CCNA exam, recommended training courses, study materials, exam format and structure. The CCNA certification tests knowledge of network fundamentals, switching, routing, WAN technologies, security and management. Exams last 90 minutes and contain around 50-60 multiple choice and simulation questions. Common jobs requiring the CCNA include network administrator, database administrator and help desk technician.
This slide deck covers Networking Fundamentals, Various Penetration testing standards, OWASP TOP 10 Vulnerabilities of Web Application and the Lab Setup required for Penetration testing.
This document contains lecture notes on fundamentals of computer systems from Dr. Atif Shahzad. It covers topics such as logic, Boolean algebra, memory, CPU, registers, fetch-execute cycle, file management, networking, OSI model, LAN, WAN, communication protocols, latency, capacity, broadcast, firewalls, and network speeds. The document provides definitions and explanations of key computer science concepts.
Webinar topic: Building Indoor Wireless Network
Presenter: Achmad Mardiansyah
In this webinar series, We are discussing Building Indoor Wireless Network
Please share your feedback or webinar ideas here: http://bit.ly/glcfeedback
Check our schedule for future events: https://www.glcnetworks.com/en/schedule/
Follow our social media for updates: Facebook, Instagram, YouTube Channel, and telegram
Recording available on Youtube
https://youtu.be/_kJL6Tq5iqE
Skybuffer SAM4U tool for SAP license adoptionTatiana Kojar
Manage and optimize your license adoption and consumption with SAM4U, an SAP free customer software asset management tool.
SAM4U, an SAP complimentary software asset management tool for customers, delivers a detailed and well-structured overview of license inventory and usage with a user-friendly interface. We offer a hosted, cost-effective, and performance-optimized SAM4U setup in the Skybuffer Cloud environment. You retain ownership of the system and data, while we manage the ABAP 7.58 infrastructure, ensuring fixed Total Cost of Ownership (TCO) and exceptional services through the SAP Fiori interface.
5th LF Energy Power Grid Model Meet-up SlidesDanBrown980551
5th Power Grid Model Meet-up
It is with great pleasure that we extend to you an invitation to the 5th Power Grid Model Meet-up, scheduled for 6th June 2024. This event will adopt a hybrid format, allowing participants to join us either through an online Mircosoft Teams session or in person at TU/e located at Den Dolech 2, Eindhoven, Netherlands. The meet-up will be hosted by Eindhoven University of Technology (TU/e), a research university specializing in engineering science & technology.
Power Grid Model
The global energy transition is placing new and unprecedented demands on Distribution System Operators (DSOs). Alongside upgrades to grid capacity, processes such as digitization, capacity optimization, and congestion management are becoming vital for delivering reliable services.
Power Grid Model is an open source project from Linux Foundation Energy and provides a calculation engine that is increasingly essential for DSOs. It offers a standards-based foundation enabling real-time power systems analysis, simulations of electrical power grids, and sophisticated what-if analysis. In addition, it enables in-depth studies and analysis of the electrical power grid’s behavior and performance. This comprehensive model incorporates essential factors such as power generation capacity, electrical losses, voltage levels, power flows, and system stability.
Power Grid Model is currently being applied in a wide variety of use cases, including grid planning, expansion, reliability, and congestion studies. It can also help in analyzing the impact of renewable energy integration, assessing the effects of disturbances or faults, and developing strategies for grid control and optimization.
What to expect
For the upcoming meetup we are organizing, we have an exciting lineup of activities planned:
-Insightful presentations covering two practical applications of the Power Grid Model.
-An update on the latest advancements in Power Grid -Model technology during the first and second quarters of 2024.
-An interactive brainstorming session to discuss and propose new feature requests.
-An opportunity to connect with fellow Power Grid Model enthusiasts and users.
Trusted Execution Environment for Decentralized Process MiningLucaBarbaro3
Presentation of the paper "Trusted Execution Environment for Decentralized Process Mining" given during the CAiSE 2024 Conference in Cyprus on June 7, 2024.
Introduction of Cybersecurity with OSS at Code Europe 2024Hiroshi SHIBATA
I develop the Ruby programming language, RubyGems, and Bundler, which are package managers for Ruby. Today, I will introduce how to enhance the security of your application using open-source software (OSS) examples from Ruby and RubyGems.
The first topic is CVE (Common Vulnerabilities and Exposures). I have published CVEs many times. But what exactly is a CVE? I'll provide a basic understanding of CVEs and explain how to detect and handle vulnerabilities in OSS.
Next, let's discuss package managers. Package managers play a critical role in the OSS ecosystem. I'll explain how to manage library dependencies in your application.
I'll share insights into how the Ruby and RubyGems core team works to keep our ecosystem safe. By the end of this talk, you'll have a better understanding of how to safeguard your code.
Generating privacy-protected synthetic data using Secludy and MilvusZilliz
During this demo, the founders of Secludy will demonstrate how their system utilizes Milvus to store and manipulate embeddings for generating privacy-protected synthetic data. Their approach not only maintains the confidentiality of the original data but also enhances the utility and scalability of LLMs under privacy constraints. Attendees, including machine learning engineers, data scientists, and data managers, will witness first-hand how Secludy's integration with Milvus empowers organizations to harness the power of LLMs securely and efficiently.
Ocean lotus Threat actors project by John Sitima 2024 (1).pptxSitimaJohn
Ocean Lotus cyber threat actors represent a sophisticated, persistent, and politically motivated group that poses a significant risk to organizations and individuals in the Southeast Asian region. Their continuous evolution and adaptability underscore the need for robust cybersecurity measures and international cooperation to identify and mitigate the threats posed by such advanced persistent threat groups.
Monitoring and Managing Anomaly Detection on OpenShift.pdfTosin Akinosho
Monitoring and Managing Anomaly Detection on OpenShift
Overview
Dive into the world of anomaly detection on edge devices with our comprehensive hands-on tutorial. This SlideShare presentation will guide you through the entire process, from data collection and model training to edge deployment and real-time monitoring. Perfect for those looking to implement robust anomaly detection systems on resource-constrained IoT/edge devices.
Key Topics Covered
1. Introduction to Anomaly Detection
- Understand the fundamentals of anomaly detection and its importance in identifying unusual behavior or failures in systems.
2. Understanding Edge (IoT)
- Learn about edge computing and IoT, and how they enable real-time data processing and decision-making at the source.
3. What is ArgoCD?
- Discover ArgoCD, a declarative, GitOps continuous delivery tool for Kubernetes, and its role in deploying applications on edge devices.
4. Deployment Using ArgoCD for Edge Devices
- Step-by-step guide on deploying anomaly detection models on edge devices using ArgoCD.
5. Introduction to Apache Kafka and S3
- Explore Apache Kafka for real-time data streaming and Amazon S3 for scalable storage solutions.
6. Viewing Kafka Messages in the Data Lake
- Learn how to view and analyze Kafka messages stored in a data lake for better insights.
7. What is Prometheus?
- Get to know Prometheus, an open-source monitoring and alerting toolkit, and its application in monitoring edge devices.
8. Monitoring Application Metrics with Prometheus
- Detailed instructions on setting up Prometheus to monitor the performance and health of your anomaly detection system.
9. What is Camel K?
- Introduction to Camel K, a lightweight integration framework built on Apache Camel, designed for Kubernetes.
10. Configuring Camel K Integrations for Data Pipelines
- Learn how to configure Camel K for seamless data pipeline integrations in your anomaly detection workflow.
11. What is a Jupyter Notebook?
- Overview of Jupyter Notebooks, an open-source web application for creating and sharing documents with live code, equations, visualizations, and narrative text.
12. Jupyter Notebooks with Code Examples
- Hands-on examples and code snippets in Jupyter Notebooks to help you implement and test anomaly detection models.
HCL Notes und Domino Lizenzkostenreduzierung in der Welt von DLAUpanagenda
Webinar Recording: https://www.panagenda.com/webinars/hcl-notes-und-domino-lizenzkostenreduzierung-in-der-welt-von-dlau/
DLAU und die Lizenzen nach dem CCB- und CCX-Modell sind für viele in der HCL-Community seit letztem Jahr ein heißes Thema. Als Notes- oder Domino-Kunde haben Sie vielleicht mit unerwartet hohen Benutzerzahlen und Lizenzgebühren zu kämpfen. Sie fragen sich vielleicht, wie diese neue Art der Lizenzierung funktioniert und welchen Nutzen sie Ihnen bringt. Vor allem wollen Sie sicherlich Ihr Budget einhalten und Kosten sparen, wo immer möglich. Das verstehen wir und wir möchten Ihnen dabei helfen!
Wir erklären Ihnen, wie Sie häufige Konfigurationsprobleme lösen können, die dazu führen können, dass mehr Benutzer gezählt werden als nötig, und wie Sie überflüssige oder ungenutzte Konten identifizieren und entfernen können, um Geld zu sparen. Es gibt auch einige Ansätze, die zu unnötigen Ausgaben führen können, z. B. wenn ein Personendokument anstelle eines Mail-Ins für geteilte Mailboxen verwendet wird. Wir zeigen Ihnen solche Fälle und deren Lösungen. Und natürlich erklären wir Ihnen das neue Lizenzmodell.
Nehmen Sie an diesem Webinar teil, bei dem HCL-Ambassador Marc Thomas und Gastredner Franz Walder Ihnen diese neue Welt näherbringen. Es vermittelt Ihnen die Tools und das Know-how, um den Überblick zu bewahren. Sie werden in der Lage sein, Ihre Kosten durch eine optimierte Domino-Konfiguration zu reduzieren und auch in Zukunft gering zu halten.
Diese Themen werden behandelt
- Reduzierung der Lizenzkosten durch Auffinden und Beheben von Fehlkonfigurationen und überflüssigen Konten
- Wie funktionieren CCB- und CCX-Lizenzen wirklich?
- Verstehen des DLAU-Tools und wie man es am besten nutzt
- Tipps für häufige Problembereiche, wie z. B. Team-Postfächer, Funktions-/Testbenutzer usw.
- Praxisbeispiele und Best Practices zum sofortigen Umsetzen
How to Interpret Trends in the Kalyan Rajdhani Mix Chart.pdfChart Kalyan
A Mix Chart displays historical data of numbers in a graphical or tabular form. The Kalyan Rajdhani Mix Chart specifically shows the results of a sequence of numbers over different periods.
TrustArc Webinar - 2024 Global Privacy SurveyTrustArc
How does your privacy program stack up against your peers? What challenges are privacy teams tackling and prioritizing in 2024?
In the fifth annual Global Privacy Benchmarks Survey, we asked over 1,800 global privacy professionals and business executives to share their perspectives on the current state of privacy inside and outside of their organizations. This year’s report focused on emerging areas of importance for privacy and compliance professionals, including considerations and implications of Artificial Intelligence (AI) technologies, building brand trust, and different approaches for achieving higher privacy competence scores.
See how organizational priorities and strategic approaches to data security and privacy are evolving around the globe.
This webinar will review:
- The top 10 privacy insights from the fifth annual Global Privacy Benchmarks Survey
- The top challenges for privacy leaders, practitioners, and organizations in 2024
- Key themes to consider in developing and maintaining your privacy program
GraphRAG for Life Science to increase LLM accuracyTomaz Bratanic
GraphRAG for life science domain, where you retriever information from biomedical knowledge graphs using LLMs to increase the accuracy and performance of generated answers
Salesforce Integration for Bonterra Impact Management (fka Social Solutions A...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on integration of Salesforce with Bonterra Impact Management.
Interested in deploying an integration with Salesforce for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
Fueling AI with Great Data with Airbyte WebinarZilliz
This talk will focus on how to collect data from a variety of sources, leveraging this data for RAG and other GenAI use cases, and finally charting your course to productionalization.
Driving Business Innovation: Latest Generative AI Advancements & Success StorySafe Software
Are you ready to revolutionize how you handle data? Join us for a webinar where we’ll bring you up to speed with the latest advancements in Generative AI technology and discover how leveraging FME with tools from giants like Google Gemini, Amazon, and Microsoft OpenAI can supercharge your workflow efficiency.
During the hour, we’ll take you through:
Guest Speaker Segment with Hannah Barrington: Dive into the world of dynamic real estate marketing with Hannah, the Marketing Manager at Workspace Group. Hear firsthand how their team generates engaging descriptions for thousands of office units by integrating diverse data sources—from PDF floorplans to web pages—using FME transformers, like OpenAIVisionConnector and AnthropicVisionConnector. This use case will show you how GenAI can streamline content creation for marketing across the board.
Ollama Use Case: Learn how Scenario Specialist Dmitri Bagh has utilized Ollama within FME to input data, create custom models, and enhance security protocols. This segment will include demos to illustrate the full capabilities of FME in AI-driven processes.
Custom AI Models: Discover how to leverage FME to build personalized AI models using your data. Whether it’s populating a model with local data for added security or integrating public AI tools, find out how FME facilitates a versatile and secure approach to AI.
We’ll wrap up with a live Q&A session where you can engage with our experts on your specific use cases, and learn more about optimizing your data workflows with AI.
This webinar is ideal for professionals seeking to harness the power of AI within their data management systems while ensuring high levels of customization and security. Whether you're a novice or an expert, gain actionable insights and strategies to elevate your data processes. Join us to see how FME and AI can revolutionize how you work with data!
Letter and Document Automation for Bonterra Impact Management (fka Social Sol...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on automated letter generation for Bonterra Impact Management using Google Workspace or Microsoft 365.
Interested in deploying letter generation automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
Skybuffer AI: Advanced Conversational and Generative AI Solution on SAP Busin...Tatiana Kojar
Skybuffer AI, built on the robust SAP Business Technology Platform (SAP BTP), is the latest and most advanced version of our AI development, reaffirming our commitment to delivering top-tier AI solutions. Skybuffer AI harnesses all the innovative capabilities of the SAP BTP in the AI domain, from Conversational AI to cutting-edge Generative AI and Retrieval-Augmented Generation (RAG). It also helps SAP customers safeguard their investments into SAP Conversational AI and ensure a seamless, one-click transition to SAP Business AI.
With Skybuffer AI, various AI models can be integrated into a single communication channel such as Microsoft Teams. This integration empowers business users with insights drawn from SAP backend systems, enterprise documents, and the expansive knowledge of Generative AI. And the best part of it is that it is all managed through our intuitive no-code Action Server interface, requiring no extensive coding knowledge and making the advanced AI accessible to more users.
Ivanti’s Patch Tuesday breakdown goes beyond patching your applications and brings you the intelligence and guidance needed to prioritize where to focus your attention first. Catch early analysis on our Ivanti blog, then join industry expert Chris Goettl for the Patch Tuesday Webinar Event. There we’ll do a deep dive into each of the bulletins and give guidance on the risks associated with the newly-identified vulnerabilities.
2. Twitter: @eminka_da
Objectives
❏ Give high level and relatable ideas of
computer networking concepts
❏ Prepare for self learning weeks 3 - 6 of google
technical support certification
❏ Prepare for self learning advanced
networking in future
Outline
❏ Recap
❏ Introduction to Network Services (Week 03)
❏ Introduction to Connecting to the Internet
(Week 04)
❏ Introduction to Troubleshooting and the
Future of Networking (Week 05)
3. Twitter: @eminka_da
Please Physical
Do Data Link
Not Network
Throw Transport
Sliced Session
Pizza Presentation
Away Application
Network Layers(OSI)
Recap
7. Twitter: @eminka_da
Network Services
○ Network Address Translation (NAT)
■ Overview
■ NAT vs PAT
■ Non routable address space and ipv4
limitations
RFC1918: ‘We will refer to the
hosts in the first and second
categories as
"private". We will refer to the
hosts in the third category as
"public".’
10. Twitter: @eminka_da
Connecting to the Internet
○ Dial up
■ Overview
■ POTs
■ Dial up modems
■ Point to point protocol (PPP)
PO
T
Dial up modem
11. Twitter: @eminka_da
Connecting to the Internet
○ Broadband
■ Overview
■ Broadband technologies
(DSL, Cable, Fiber and
Satellite, also T-carriers)
12. Twitter: @eminka_da
Connecting to the Internet
○ T-Carrier technologies: T-Carrier: [L1]
■ T-1: 24 channels and 1.544 Mbps
■ T-2: 96 channels and 6.312 Mbps
■ T-3: 432 channels and 44.736 Mbps
■ T-4: 4032 channels and 274.176
Mbps
13. Twitter: @eminka_da
Connecting to the Internet
○ Wide Area Networks (WANs)
■ Overview
■ WAN technologies
■ WAN protocols
● Point-to-point topology
● Hub-and-spoke topology
● Full mesh topology
● Dual-homed topology
14. Twitter: @eminka_da
Connecting to the Internet
○ Wireless Networks
■ Overview
■ Wireless technologies
■ Wireless protocols
■ Wireless channels & security
■ What OSI layer is the network
adapter?
15. Twitter: @eminka_da
Connecting to the Internet
● 900 MHz (802.11ah)
● 2.4 GHz (802.11b/g/n/ax)
● 3.65 GHz (802.11y)
● 5.0 GHz (802.11j) WLAN
● 5 GHz or 5.8 GHz
(802.11a/h/j/n/ac/ax)
17. Twitter: @eminka_da
Troubleshooting & Future
○ Verification of network connectivity
■ How the OSI/TCP-IP layes
help ?
■ ICMP
■ Ping & Traceroute
■ What layer is ICMP ?
18. Twitter: @eminka_da
Troubleshooting & Future
○ DNS deep dive
■ Name resolution tools
■ Public DNS servers
■ Google DNS and nslookup
handson :)
■ DNS registration and expiration
24. Twitter: @eminka_da
Word Definitions
Bit On or off signal (8 bits == Byte)
Symmetrical
Transmission
Equal download/upload speeds
Node Device on the network. Could be computer, switch.
Gateway Network entry point
Packet Formatted unit of data with header and user data
header Control information identifying packet, e.g source, destination.
Non routable ip Private IP space (A, B, C )
25. Twitter: @eminka_da
Word Definitions
ISP Internet Service Provider
ADSL Asymmetrical DSL (higher download than upload)
DSL Digital subscriber line
Analog Continuous signal
Cloud Cloud computing platform
hop Network count
L OSI /TCP-IP Layers (1-7)
26. Twitter: @eminka_da
References/Resources
○ IPv4 address space depletion
○ Network Address Translation
○ DHCP
○ Why does DNS use UDP ?
○ OSI Networking Game :)
○ Request for comments (RFC)
○ RFC archives
○ IANA
○ RIR
○ OSI Model
Editor's Notes
QnA from previous ??
What: L7 network service that helps us resolve friendly domain names to ip addresses
Why: although domain names are easy for people to remember, computers or machines, access websites based on IP addresses
How: 3 way handshake (L7) to query → Uses either UDP or TCP (L4) via a 4 way handshake to serve requested resource
Use cases, QnAnA
What: L7 network service that helps us resolve friendly domain names to ip addresses
Why: although domain names are easy for people to remember, computers or machines, access websites based on IP addresses
How: 3 way handshake (L7) to query → Uses either UDP or TCP (L4) via a 4 way handshake to serve requested resource
Use cases, QnAnA
What: L7 network service that ensures automatic assignment of ip addresses on network
Why: ip scalability if ip needs grow, less error prone, unlikely conflict in ip assignment, better ip assigning management.
How: It accepts UDP requests for IP address from un-configured hosts. Then, returns the IP address for that host.
Static may be prefered in VPN applications
Use cases, QnAnA
What: L3 network service that translates private ips to public ips for routing to and from a private network
Why: Secure:keeps internal addressing from the external network, help conserve ip space by mappin multiple private ip set to one public ip
How: Modifies IP header of packet to reflect appropriate public or private ip
Non routable address space: Class A, B and C ( D==multicast, E==Experimental purpose)
Use cases, QnAnA
What: L3 network service that translates private ips to public ips for routing and vice versa
Why: Secure:keeps internal addressing from the external network, help conserve ip space by mappin multiple private ip set to one public ip
How: Modifies IP header of packet to reflect appropriate public or private ip
Non routable address space: Class A, B and C ( D==multicast, E==Experimental purpose)
Use cases, QnAnA
What: (L3 / L2 ) network service for safe and encrypted connection over a less secure network e.g. internet. Extends private network via public network
Why: safety, privacy,
How: KPMG wfh scenario
Proxies: Anonymous web browsing and managing content access control. It masks your IP location but doesn’t encrypt your data, (KPMG scenario)
Use cases, QnAnA
What: internet service that connect via phone line. Phone couldn’t be used for both calls and internet connectivity at same time(Baseband)
Why: We had to get on the internet by some means :) and this was the best way then
How: Dial into your ISP (Internet Service Provider) using a phone number via an external (or later internal) dial-up modem((L1 device)
POTs: voice-grade telephone service. Uses analog signal transmission
Point to point protocol (PPP):enable dial up connections / facilitates the transmission of data packets between point to point links.
Use cases, QnAnA
What: internet service uses multiple channel and able to split signal traffic among different channels for both calls and internet connectivity
Why: it's a lot better than traditional dial up connection, faster and more options for delivery. Find protocols
How: Broadband technologies(order of popularity): DSL, Cable modem, Fiber, t-carriers, and Satellite . Find order of speed
What: internet service Dedicated multi channel phone call and data (point-to-point private networks). Unlike standard telephone lines which transfer data and voice at about 30,000 bits per second (30 kbps) using a dial-up modem
Why: dedicated and faster connection
How: multi channels (maths)
What: geographically distributed network that interconnects multiple local area networks (LANs). E.g network of ATMs, internet, #askmore
Why: expand networks accross diverse locations,
How: Facilitated by WAN technologies and protocols
WAN technologies usually at layers 1,2&3
What: Network on which data transmission is via a wireless medium
Why: Convenience/mobility, easy deployment, might cost less
How: LAN==Wi-Fi, Community==WiMax, Satellite,MAN==Point-to-Point links, PAN==Bluetooth,Zigbee, infrared, etc..
Devices: Repeater(L1), Wireless router(L3),
What: Network on which data transmission is via a wireless medium
Why: Convenience/mobility, easy deployment, might cost less
How: LAN==Wi-Fi, Community==WiMax, Satellite,MAN==Point-to-Point links, PAN==Bluetooth,Zigbee, infrared, etc.. Ref
Devices: Repeater(L1), Wireless router(L3),
What: A cellular network or mobile network is a radio network distributed over land areas called cells, each served by at least one fixed-location transceiver, known as a cell site or base station.
Why: seamless roaming capabilities for supporting cellular devices.
How:
Handson with students (Ping & Traceroute)
The Internet Control Message Protocol (ICMP) is a supporting protocol in the Internet protocol suite. It is used by network devices, including routers, to send error messages and operational information indicating success or failure when communicating with another IP address
Hostsfiles: Maps custom hostnames to ip addresses. Testing domains locally before going live
Tools: NSlookup: resolves domain names to ip
Hostsfiles: Maps custom hostnames to ip addresses. Testing domains locally before going live
Tools: NSlookup: resolves domain names to ip
Virtualization: single host could run many virtual instances called guests.
Hypervisor: runs and manages virtual machines while also offering these guests a virtual operating platform that's indistinguishable from actual hardware.
Cloud leverages on this to create a system that allows massive resource sharing
Virtualization: single host could run many virtual instances called guests.
Hypervisor: runs and manages virtual machines while also offering these guests a virtual operating platform that's indistinguishable from actual hardware.
Cloud leverages on this to create a system that allows massive resource sharing
What: emerged to resolved the depleting addresses of ipv4. Uses alphanumeric to represent ip addresses rather than numbers as in ipv4. (Hexadecimals). 128 bit ip address & 16 octets
What: emerged to resolved the depleting addresses of ipv4.
Ipv6 vs ipv4 harmony: how do we safely and seamlessly transition or even merge these two ? Read more about ipv6 tunneling