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This document provides an overview of IP networks and the internet/intranets. It discusses the internet and internet service providers, the TCP/IP and IP protocols, IP addresses, the world wide web, proxy servers, DNS, Ethernet LANs, WLANs, LANs, WANs, and simple network construction. The document is copyrighted material from ITnetworking Co., Ltd and provides a guide to course 1 on IP network fundamentals.
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Kcgi maruuchi1
This document provides an introduction and summary of IP networks, the internet, intranets, and how companies use networks. It discusses internet service providers, the TCP/IP protocol, IP addresses, internet services like the world wide web and proxy servers, and basic network construction including local area networks, wide area networks, and wireless networks. The document is divided into sections covering these topics and is copyrighted material from an IT networking company.
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This document provides an introduction and summary of IP networks, the internet, intranets, and how companies use networks. It discusses internet service providers, the TCP/IP protocol, IP addresses, internet services like the world wide web and proxy servers, and basic network construction including local area networks, wide area networks, and wireless networks. The document is divided into sections covering these topics and is copyrighted material from an IT networking company.
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The document discusses addressing considerations for IoT/M2M services under different network structures:
1) For non-dedicated networks using users' networks, IoT devices can use addresses assigned by ISPs.
2) For dedicated networks connected to the internet, it is unclear if IoT service providers can obtain IPv6 address space.
3) For closed IoT networks, provider independent addresses or Unique Local Addresses may be suitable, but their applicability requires further discussion.
4) For non-IP networks with IP gateways, the appropriate address type and sizing also requires discussion. The document raises open questions about addressing different IoT network scenarios within current IPv6 policies.
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This document discusses Wi-Fi and wireless networking security. It defines Wi-Fi as a wireless technology that uses radio frequencies to transmit data through the air based on the 802.11 standards. It describes the roles of the Wi-Fi Alliance and certification process. It provides an overview of the 802.11 standards including 802.11b, 802.11g and 802.11a. It discusses the advantages and disadvantages of Wi-Fi and outlines some basic security strategies and techniques used to secure wireless networks like blocking the SSID, changing default passwords, and using firewalls.
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Wi-Fi technology refers to wireless local area network (WLAN) standards for devices to connect to the Internet wirelessly. The document discusses Wi-Fi standards including 802.11b, 802.11a, and 802.11g. It describes Wi-Fi network components, topologies, configurations, applications, security techniques and threats. Wi-Fi provides mobility and flexibility but has limitations such as potential interference, performance degradation, and limited range.
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WiFi (Wireless Fidelity) is a wireless technology that uses radio waves to provide wireless internet access in local areas. It allows devices to connect to the internet without being physically connected with cables. The first wireless products using this technology were introduced in 1991 under the name WaveLAN. WiFi operates in the 2.4GHz and 5GHz radio bands and allows devices to connect within a range of around 100 feet from an access point. It provides wireless internet access through WiFi hotspots that can be either open for public use or secure networks requiring a password. The 802.11 WiFi standards have continued to evolve with improvements to speed and security.
Kcgi maruuchi1
This document provides an overview of IP networks and the internet/intranets. It discusses the internet and internet service providers, the TCP/IP and IP protocols, IP addresses, the world wide web, proxy servers, DNS, Ethernet LANs, WLANs, LANs, WANs, and simple network construction. The document is copyrighted material from ITnetworking Co., Ltd and provides a guide to course 1 on IP network fundamentals.
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The document provides an overview and summary of the internet, intranet, and extranet. It defines the internet as the general term for interconnected computer networks worldwide. An internet service provider offers connections to the internet, and internet use services include email and the world wide web. An intranet uses internet technologies for information systems within companies, while an extranet allows information sharing between company networks.
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Wi-Fi (Wireless Fidelity) allows devices to connect to the internet and networks without physical connections using radio technology defined by the IEEE 802.11 standards. It provides wireless broadband access within a specific range, with many access points able to connect multiple users across a large area. While convenient, Wi-Fi networks face security challenges that techniques like WEP, WPA, and dedicated security software aim to address. Their capabilities are also limited by factors such as interference, but new standards seek to improve speed, range and other advantages over wired networks.
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Wi-Fi refers to wireless local area network technology that uses the 802.11 standards. It was developed by the IEEE and branded as "Wi-Fi" by the Wi-Fi Alliance trade group to promote interoperability between wireless devices. Wi-Fi allows devices like computers, phones, and other electronics to connect to the internet or communicate with each other wirelessly within a particular range using radio waves. While convenient, Wi-Fi connections pose security risks if not encrypted, though newer standards like WPA2 aim to address this when configured correctly.
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Wi-Fi is a wireless technology that allows devices to connect to the internet and exchange data wirelessly using radio waves. It was invented in 1991 and standardized as IEEE 802.11. Wi-Fi uses radio frequencies between 2.4GHz and 5GHz to transmit data over distances of up to 150 feet indoors and 300 feet outdoors. It enables wireless internet access through base stations called access points that broadcast signals for wireless devices to connect to. The technology has various applications and advantages like mobility and reduced installation costs but also faces limitations like interference and security issues.
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This document discusses Wi-Fi and wireless networking security. It defines Wi-Fi as a wireless technology that uses radio frequencies to transmit data through the air based on the 802.11 standards. It describes the roles of the Wi-Fi Alliance and certification process. It provides an overview of the 802.11 standards including 802.11b, 802.11g and 802.11a. It discusses the advantages and disadvantages of Wi-Fi and outlines some basic security strategies and techniques used to secure wireless networks like blocking the SSID, changing default passwords, and using firewalls.
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Wi-Fi was invented in 1997 with the creation of the IEEE 802.11 committee to develop standards for wireless local area networks (WLANs). Victor Hayes is considered the "Father of Wi-Fi" for his role in establishing the IEEE 802.11 standards working group. Common Wi-Fi standards include 802.11b, 802.11a, 802.11g, 802.11n, and 802.11ac. A Wi-Fi network uses access points to create hotspots that can connect wireless devices within a range of around 100 to 300 feet. Wi-Fi provides mobility by allowing devices to connect to the internet or local network without being physically wired.
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This document provides an overview of Wi-Fi, including its standards, hotspots, network elements, how it works, advantages, limitations, and security techniques. It discusses the evolution of Wi-Fi standards such as 802.11, super Wi-Fi, and defines hotspots as locations that provide public wireless network access. The key components of a Wi-Fi network are described as access points, Wi-Fi cards/adapters, and security is covered including WEP, WPA, and WPA2 encryption protocols.
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Wi-Fi is a wireless technology that uses radio frequencies to transmit data through the air. It uses the IEEE 802.11 standards for wireless local area networks (WLANs). There are different Wi-Fi standards including 802.11b, 802.11a, and 802.11g that operate at different speeds and frequencies. A Wi-Fi network uses access points that connect wireless devices like laptops and smartphones to the internet within a range of about 100-150 feet. While convenient, Wi-Fi networks can experience interference and have limited range.
wi-fi technology
Wi-Fi technology refers to wireless local area network (WLAN) standards for devices to connect to the Internet wirelessly. The document discusses Wi-Fi standards including 802.11b, 802.11a, and 802.11g. It describes Wi-Fi network components, topologies, configurations, applications, security techniques and threats. Wi-Fi provides mobility and flexibility but has limitations such as potential interference, performance degradation, and limited range.
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I list four to-do's for everyone working with realtime communication as we move away from telephony over IP into the world of Internet-based realtime communication. I believe that here is a trust gap between what users expect us to deliver, but don't ask for, and what we actually deliver. Let's change that together!
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This document provides an overview of IP networks and the internet/intranets. It discusses the internet and internet service providers, the TCP/IP and IP protocols, IP addresses, the world wide web, proxy servers, DNS, Ethernet LANs, WLANs, LANs, WANs, and simple network construction. The document is copyrighted material from ITnetworking Co., Ltd and provides a guide to course 1 on IP network fundamentals.
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The document provides an overview and summary of the internet, intranet, and extranet. It defines the internet as the general term for interconnected computer networks worldwide. An internet service provider offers connections to the internet, and internet use services include email and the world wide web. An intranet uses internet technologies for information systems within companies, while an extranet allows information sharing between company networks.
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The document provides an overview of internet and intranet networks. It defines the internet as the interconnected network of computer networks globally. An intranet uses internet technologies for information systems within companies, while an extranet allows information sharing between companies. It also discusses TCP/IP protocols, IP addresses, and common applications and services used on these networks like email, web, and DNS. Basic network components are introduced including Ethernet LANs, WLANs, WANs, and proxies. The document is authored by Keisuke Maruuchi for ITnetworking Co., Ltd. to develop an online course to educate new employees on basic IP network technologies.
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Event Link: https://meine.doag.org/events/cloudland/2024/agenda/#agendaId.4211
"Choosing proper type of scaling", Olena Syrota
Imagine an IoT processing system that is already quite mature and production-ready and for which client coverage is growing and scaling and performance aspects are life and death questions. The system has Redis, MongoDB, and stream processing based on ksqldb. In this talk, firstly, we will analyze scaling approaches and then select the proper ones for our system.
Day 2 - Intro to UiPath Studio Fundamentals
In our second session, we shall learn all about the main features and fundamentals of UiPath Studio that enable us to use the building blocks for any automation project.
📕 Detailed agenda:
Variables and Datatypes
Workflow Layouts
Arguments
Control Flows and Loops
Conditional Statements
💻 Extra training through UiPath Academy:
Variables, Constants, and Arguments in Studio
Control Flow in Studio
Must Know Postgres Extension for DBA and Developer during Migration
Mydbops Opensource Database Meetup 16
Topic: Must-Know PostgreSQL Extensions for Developers and DBAs During Migration
Speaker: Deepak Mahto, Founder of DataCloudGaze Consulting
Date & Time: 8th June | 10 AM - 1 PM IST
Venue: Bangalore International Centre, Bangalore
Abstract: Discover how PostgreSQL extensions can be your secret weapon! This talk explores how key extensions enhance database capabilities and streamline the migration process for users moving from other relational databases like Oracle.
Key Takeaways:
* Learn about crucial extensions like oracle_fdw, pgtt, and pg_audit that ease migration complexities.
* Gain valuable strategies for implementing these extensions in PostgreSQL to achieve license freedom.
* Discover how these key extensions can empower both developers and DBAs during the migration process.
* Don't miss this chance to gain practical knowledge from an industry expert and stay updated on the latest open-source database trends.
Mydbops Managed Services specializes in taking the pain out of database management while optimizing performance. Since 2015, we have been providing top-notch support and assistance for the top three open-source databases: MySQL, MongoDB, and PostgreSQL.
Our team offers a wide range of services, including assistance, support, consulting, 24/7 operations, and expertise in all relevant technologies. We help organizations improve their database's performance, scalability, efficiency, and availability.
Contact us: info@mydbops.com
Visit: https://www.mydbops.com/
Follow us on LinkedIn: https://in.linkedin.com/company/mydbops
For more details and updates, please follow up the below links.
Meetup Page : https://www.meetup.com/mydbops-databa...
Twitter: https://twitter.com/mydbopsofficial
Blogs: https://www.mydbops.com/blog/
Facebook(Meta): https://www.facebook.com/mydbops/
Connector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectors
Join us to learn how UiPath Apps can directly and easily interact with prebuilt connectors via Integration Service--including Salesforce, ServiceNow, Open GenAI, and more.
The best part is you can achieve this without building a custom workflow! Say goodbye to the hassle of using separate automations to call APIs. By seamlessly integrating within App Studio, you can now easily streamline your workflow, while gaining direct access to our Connector Catalog of popular applications.
We’ll discuss and demo the benefits of UiPath Apps and connectors including:
Creating a compelling user experience for any software, without the limitations of APIs.
Accelerating the app creation process, saving time and effort
Enjoying high-performance CRUD (create, read, update, delete) operations, for
seamless data management.
Speakers:
Russell Alfeche, Technology Leader, RPA at qBotic and UiPath MVP
Charlie Greenberg, host
What is an RPA CoE? Session 2 – CoE Roles
In this session, we will review the players involved in the CoE and how each role impacts opportunities.
Topics covered:
• What roles are essential?
• What place in the automation journey does each role play?
Speaker:
Chris Bolin, Senior Intelligent Automation Architect Anika Systems
A Deep Dive into ScyllaDB's Architecture
This talk will cover ScyllaDB Architecture from the cluster-level view and zoom in on data distribution and internal node architecture. In the process, we will learn the secret sauce used to get ScyllaDB's high availability and superior performance. We will also touch on the upcoming changes to ScyllaDB architecture, moving to strongly consistent metadata and tablets.
LF Energy Webinar: Carbon Data Specifications: Mechanisms to Improve Data Acc...
This LF Energy webinar took place June 20, 2024. It featured:
-Alex Thornton, LF Energy
-Hallie Cramer, Google
-Daniel Roesler, UtilityAPI
-Henry Richardson, WattTime
In response to the urgency and scale required to effectively address climate change, open source solutions offer significant potential for driving innovation and progress. Currently, there is a growing demand for standardization and interoperability in energy data and modeling. Open source standards and specifications within the energy sector can also alleviate challenges associated with data fragmentation, transparency, and accessibility. At the same time, it is crucial to consider privacy and security concerns throughout the development of open source platforms.
This webinar will delve into the motivations behind establishing LF Energy’s Carbon Data Specification Consortium. It will provide an overview of the draft specifications and the ongoing progress made by the respective working groups.
Three primary specifications will be discussed:
-Discovery and client registration, emphasizing transparent processes and secure and private access
-Customer data, centering around customer tariffs, bills, energy usage, and full consumption disclosure
-Power systems data, focusing on grid data, inclusive of transmission and distribution networks, generation, intergrid power flows, and market settlement data
From Natural Language to Structured Solr Queries using LLMs
This talk draws on experimentation to enable AI applications with Solr. One important use case is to use AI for better accessibility and discoverability of the data: while User eXperience techniques, lexical search improvements, and data harmonization can take organizations to a good level of accessibility, a structural (or “cognitive” gap) remains between the data user needs and the data producer constraints.
That is where AI – and most importantly, Natural Language Processing and Large Language Model techniques – could make a difference. This natural language, conversational engine could facilitate access and usage of the data leveraging the semantics of any data source.
The objective of the presentation is to propose a technical approach and a way forward to achieve this goal.
The key concept is to enable users to express their search queries in natural language, which the LLM then enriches, interprets, and translates into structured queries based on the Solr index’s metadata.
This approach leverages the LLM’s ability to understand the nuances of natural language and the structure of documents within Apache Solr.
The LLM acts as an intermediary agent, offering a transparent experience to users automatically and potentially uncovering relevant documents that conventional search methods might overlook. The presentation will include the results of this experimental work, lessons learned, best practices, and the scope of future work that should improve the approach and make it production-ready.
JavaLand 2024: Application Development Green Masterplan
My presentation slides I used at JavaLand 2024
Dandelion Hashtable: beyond billion requests per second on a commodity server
This slide deck presents DLHT, a concurrent in-memory hashtable. Despite efforts to optimize hashtables, that go as far as sacrificing core functionality, state-of-the-art designs still incur multiple memory accesses per request and block request processing in three cases. First, most hashtables block while waiting for data to be retrieved from memory. Second, open-addressing designs, which represent the current state-of-the-art, either cannot free index slots on deletes or must block all requests to do so. Third, index resizes block every request until all objects are copied to the new index. Defying folklore wisdom, DLHT forgoes open-addressing and adopts a fully-featured and memory-aware closed-addressing design based on bounded cache-line-chaining. This design offers lock-free index operations and deletes that free slots instantly, (2) completes most requests with a single memory access, (3) utilizes software prefetching to hide memory latencies, and (4) employs a novel non-blocking and parallel resizing. In a commodity server and a memory-resident workload, DLHT surpasses 1.6B requests per second and provides 3.5x (12x) the throughput of the state-of-the-art closed-addressing (open-addressing) resizable hashtable on Gets (Deletes).
GlobalLogic Java Community Webinar #18 “How to Improve Web Application Perfor...
Під час доповіді відповімо на питання, навіщо потрібно підвищувати продуктивність аплікації і які є найефективніші способи для цього. А також поговоримо про те, що таке кеш, які його види бувають та, основне — як знайти performance bottleneck?
Відео та деталі заходу: https://bit.ly/45tILxj
[OReilly Superstream] Occupy the Space: A grassroots guide to engineering (an...
The typical problem in product engineering is not bad strategy, so much as “no strategy”. This leads to confusion, lack of motivation, and incoherent action. The next time you look for a strategy and find an empty space, instead of waiting for it to be filled, I will show you how to fill it in yourself. If you’re wrong, it forces a correction. If you’re right, it helps create focus. I’ll share how I’ve approached this in the past, both what works and lessons for what didn’t work so well.
"NATO Hackathon Winner: AI-Powered Drug Search", Taras Kloba
This is a session that details how PostgreSQL's features and Azure AI Services can be effectively used to significantly enhance the search functionality in any application.
In this session, we'll share insights on how we used PostgreSQL to facilitate precise searches across multiple fields in our mobile application. The techniques include using LIKE and ILIKE operators and integrating a trigram-based search to handle potential misspellings, thereby increasing the search accuracy.
We'll also discuss how the azure_ai extension on PostgreSQL databases in Azure and Azure AI Services were utilized to create vectors from user input, a feature beneficial when users wish to find specific items based on text prompts. While our application's case study involves a drug search, the techniques and principles shared in this session can be adapted to improve search functionality in a wide range of applications. Join us to learn how PostgreSQL and Azure AI can be harnessed to enhance your application's search capability.
QR Secure: A Hybrid Approach Using Machine Learning and Security Validation F...
QR Secure: A Hybrid Approach Using Machine Learning and Security Validation Functions to Prevent Interaction with Malicious QR Codes.
Aim of the Study: The goal of this research was to develop a robust hybrid approach for identifying malicious and insecure URLs derived from QR codes, ensuring safe interactions.
This is achieved through:
Machine Learning Model: Predicts the likelihood of a URL being malicious.
Security Validation Functions: Ensures the derived URL has a valid certificate and proper URL format.
This innovative blend of technology aims to enhance cybersecurity measures and protect users from potential threats hidden within QR codes 🖥 🔒
This study was my first introduction to using ML which has shown me the immense potential of ML in creating more secure digital environments!
What is an RPA CoE? Session 1 – CoE Vision
In the first session, we will review the organization's vision and how this has an impact on the COE Structure.
Topics covered:
• The role of a steering committee
• How do the organization’s priorities determine CoE Structure?
Speaker:
Chris Bolin, Senior Intelligent Automation Architect Anika Systems
Leveraging the Graph for Clinical Trials and Standards
Katja Glaß
OpenStudyBuilder Community Manager - Katja Glaß Consulting
Marius Conjeaud
Principal Consultant - Neo4j
Biomedical Knowledge Graphs for Data Scientists and Bioinformaticians
Dmitrii Kamaev, PhD
Senior Product Owner - QIAGEN
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Must Know Postgres Extension for DBA and Developer during Migration
Must Know Postgres Extension for DBA and Developer during Migration
Connector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectors
Connector Corner: Seamlessly power UiPath Apps, GenAI with prebuilt connectors
LF Energy Webinar: Carbon Data Specifications: Mechanisms to Improve Data Acc...
LF Energy Webinar: Carbon Data Specifications: Mechanisms to Improve Data Acc...
From Natural Language to Structured Solr Queries using LLMs
From Natural Language to Structured Solr Queries using LLMs
JavaLand 2024: Application Development Green Masterplan
JavaLand 2024: Application Development Green Masterplan
Dandelion Hashtable: beyond billion requests per second on a commodity server
Dandelion Hashtable: beyond billion requests per second on a commodity server
GlobalLogic Java Community Webinar #18 “How to Improve Web Application Perfor...
GlobalLogic Java Community Webinar #18 “How to Improve Web Application Perfor...
[OReilly Superstream] Occupy the Space: A grassroots guide to engineering (an...
[OReilly Superstream] Occupy the Space: A grassroots guide to engineering (an...
Poznań ACE event - 19.06.2024 Team 24 Wrapup slidedeck
Poznań ACE event - 19.06.2024 Team 24 Wrapup slidedeck
"NATO Hackathon Winner: AI-Powered Drug Search", Taras Kloba
"NATO Hackathon Winner: AI-Powered Drug Search", Taras Kloba
QR Secure: A Hybrid Approach Using Machine Learning and Security Validation F...
QR Secure: A Hybrid Approach Using Machine Learning and Security Validation F...
Leveraging the Graph for Clinical Trials and Standards
Leveraging the Graph for Clinical Trials and Standards
Biomedical Knowledge Graphs for Data Scientists and Bioinformaticians
Biomedical Knowledge Graphs for Data Scientists and Bioinformaticians
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