This document discusses VPN protocols and DNS configuration. It covers common VPN protocols like PPTP, L2TP, and IKEv2. It also discusses DNS components, how DNS queries work, configuring DNS zones, and delegating DNS authority. DNS is the foundation of internet naming and an organization's naming scheme. It allows accessing resources by alphanumeric names.
Module 3: Configuring and Troubleshooting DNS
This module introduces you to Domain Name System (DNS), which is the foundation name service in Windows Server 2008 R2. It is vital that you understand how to deploy, configure, manage, and troubleshoot this critical service.
Lessons
Installing the DNS Server Role
Configuring the DNS Server Role
Configuring DNS Zones
Configuring DNS Zone Transfers
Managing and Troubleshooting DNS
Lab : Configuring and Troubleshooting DNS
Selecting a DNS Configuration
Deploying and Configuring DNS
Troubleshooting DNS
After completing this module, students will be able to:
Install the DNS server role.
Configure the DNS server role.
Create and configure DNS zones.
Configure zone transfers.
Manage and troubleshoot DNS.
The document provides an overview of configuring Domain Name System (DNS) including:
- Reviewing DNS concepts such as zones, resource records, and name resolution
- Installing and configuring DNS in an Active Directory domain, including creating zones, records, and redundant DNS servers
- The relationship between Active Directory, DNS, and Windows including integrating DNS with the domain namespace, split-brain DNS, delegations, and dynamic updates
This document is a module from a Microsoft course on implementing DNS. It covers name resolution, installing a DNS server, and managing DNS zones. The key topics discussed include:
- How clients and servers resolve names using DNS, including the roles of DNS servers, zones, and records.
- Installing the DNS server role, including creating zones and configuring forwarding.
- Managing DNS zones, including the types of zones, dynamic updates, and Active Directory-integrated zones.
- Troubleshooting name resolution issues using tools like DNSCmd and Windows PowerShell cmdlets.
- A lab scenario instructing students to configure a domain controller as a DNS server, create host records, and set
1) DNS is a hierarchical distributed naming system that maps domain names to IP addresses through authoritative name servers responsible for particular domains and subdomains.
2) DNS servers resolve fully qualified domain names (FQDN) to IP addresses and vice versa.
3) A computer's DNS server IP address is configured in its TCP/IP settings, allowing it to send DNS requests to the correct server.
Windows Server 2003 introduced several changes to DNS including:
1) Application directory partitions allow DNS zone data to be stored separately from global catalog reducing replication load.
2) Stub zones and conditional forwarders improve name resolution between domains.
3) DNS client settings can now be centrally managed through group policy for things like suffix search lists.
4) Additional security features were added like DNSSEC and logging enhancements but full support requires future Windows versions.
Windows Server 2003 introduced several changes to DNS including:
1. Application directory partitions allow DNS zone data to be stored in a non-domain naming context partition, removing it from the global catalog.
2. Stub zones and conditional forwarders provide name resolution between different namespaces.
3. Group policies centralize configuration of client DNS settings like the suffix search list.
4. DNS logging and security extensions were enhanced, and round robin updating is now more configurable.
DNS servers convert web addresses to IP addresses and vice versa. A DNS zone is a contiguous portion of the DNS namespace containing domains and subdomains. Resource records within zonal databases contain address mappings. Using multiple DNS servers improves performance and availability through load balancing and redundancy. Threats to DNS servers include flooding, request hijacking, and traffic interception. Security measures involve restricting dynamic updates, network interfaces, and zone transfers.
The Domain Name System (DNS) is a hierarchical distributed database that maps domain names to IP addresses. It uses a client-server model where clients submit queries and servers respond authoritatively. DNS provides mapping from human-readable domain names to numerical IP addresses to make the internet easier to use. It is a critical service that enables users to access internet resources by name.
Module 3: Configuring and Troubleshooting DNS
This module introduces you to Domain Name System (DNS), which is the foundation name service in Windows Server 2008 R2. It is vital that you understand how to deploy, configure, manage, and troubleshoot this critical service.
Lessons
Installing the DNS Server Role
Configuring the DNS Server Role
Configuring DNS Zones
Configuring DNS Zone Transfers
Managing and Troubleshooting DNS
Lab : Configuring and Troubleshooting DNS
Selecting a DNS Configuration
Deploying and Configuring DNS
Troubleshooting DNS
After completing this module, students will be able to:
Install the DNS server role.
Configure the DNS server role.
Create and configure DNS zones.
Configure zone transfers.
Manage and troubleshoot DNS.
The document provides an overview of configuring Domain Name System (DNS) including:
- Reviewing DNS concepts such as zones, resource records, and name resolution
- Installing and configuring DNS in an Active Directory domain, including creating zones, records, and redundant DNS servers
- The relationship between Active Directory, DNS, and Windows including integrating DNS with the domain namespace, split-brain DNS, delegations, and dynamic updates
This document is a module from a Microsoft course on implementing DNS. It covers name resolution, installing a DNS server, and managing DNS zones. The key topics discussed include:
- How clients and servers resolve names using DNS, including the roles of DNS servers, zones, and records.
- Installing the DNS server role, including creating zones and configuring forwarding.
- Managing DNS zones, including the types of zones, dynamic updates, and Active Directory-integrated zones.
- Troubleshooting name resolution issues using tools like DNSCmd and Windows PowerShell cmdlets.
- A lab scenario instructing students to configure a domain controller as a DNS server, create host records, and set
1) DNS is a hierarchical distributed naming system that maps domain names to IP addresses through authoritative name servers responsible for particular domains and subdomains.
2) DNS servers resolve fully qualified domain names (FQDN) to IP addresses and vice versa.
3) A computer's DNS server IP address is configured in its TCP/IP settings, allowing it to send DNS requests to the correct server.
Windows Server 2003 introduced several changes to DNS including:
1) Application directory partitions allow DNS zone data to be stored separately from global catalog reducing replication load.
2) Stub zones and conditional forwarders improve name resolution between domains.
3) DNS client settings can now be centrally managed through group policy for things like suffix search lists.
4) Additional security features were added like DNSSEC and logging enhancements but full support requires future Windows versions.
Windows Server 2003 introduced several changes to DNS including:
1. Application directory partitions allow DNS zone data to be stored in a non-domain naming context partition, removing it from the global catalog.
2. Stub zones and conditional forwarders provide name resolution between different namespaces.
3. Group policies centralize configuration of client DNS settings like the suffix search list.
4. DNS logging and security extensions were enhanced, and round robin updating is now more configurable.
DNS servers convert web addresses to IP addresses and vice versa. A DNS zone is a contiguous portion of the DNS namespace containing domains and subdomains. Resource records within zonal databases contain address mappings. Using multiple DNS servers improves performance and availability through load balancing and redundancy. Threats to DNS servers include flooding, request hijacking, and traffic interception. Security measures involve restricting dynamic updates, network interfaces, and zone transfers.
The Domain Name System (DNS) is a hierarchical distributed database that maps domain names to IP addresses. It uses a client-server model where clients submit queries and servers respond authoritatively. DNS provides mapping from human-readable domain names to numerical IP addresses to make the internet easier to use. It is a critical service that enables users to access internet resources by name.
The document introduces the DNS system by explaining its purpose of mapping names to resources for easier lookup than numbers. It describes DNS features like global distribution, loose coherency, scalability, reliability, and dynamic updates. Key concepts are explained such as hierarchical DNS names, domains and delegation of subdomains, authoritative and recursive name servers, resource records including SOA and NS records, and how TTL and zone refresh timers maintain consistency.
This document provides an overview of deploying and configuring DNS service. It discusses the DNS architecture based on IP addresses and name resolution. The objectives of DNS are to assign host names without duplication, store the host name database across multiple servers to avoid bottlenecks, and create a standardized naming system. DNS has three main elements - the DNS name space organized in a tree structure with domains and resource records, name servers that contain information about domains and resource records, and resolvers which are client programs that generate queries to the name servers. The document explains how the DNS process works with queries being resolved through a series of DNS servers.
This document provides an overview of DHCP and DNS protocols. It discusses how DHCP can be used to automatically assign IP addresses and network configuration options to clients. DNS is used to map domain names to IP addresses and provides a distributed hierarchical database to store information about domain names. The document describes the basic components, operations, and implementations of both DHCP and DNS protocols.
A Domain Name System assigns an alphabetic name to a numeric IP address and is made up of multiple Domain Name servers that enable IP address mapping for devices on the Internet (usually servers).
The document provides instructions on configuring and troubleshooting DNS, including installing the DNS server role, configuring zones and zone transfers, managing DNS records, and testing the DNS configuration. It covers DNS concepts like namespace, resource records, caching, and troubleshooting tools. The lab exercise has students set up a DNS infrastructure with primary, secondary, and stub zones between two servers to test zone resilience.
This document discusses optimizing and troubleshooting DNS server performance. To optimize DNS, you can disable recursion on non-authoritative servers, delete or modify root hints files, optimize server response settings, use caching-only servers, and adjust SOA record TTL intervals. Troubleshooting DNS involves identifying the problem, checking client/server settings, server records, and DNS traffic. Common problems relate to host registration, dynamic updates, delegation, forwarders, or configuration issues.
in this presentation their is the detailed information regarding Domain Name System that is DNS.
What is DNS,how it works,query, resolution wtc all are being covered thoroughly in this presentation as it would have in for all new upcoming Engineering students to know about the DNS as well as would also help employees to get the better understanding regarding the protocol.
The complete agenda of the presentation is to provide the detailed knowledge regarding dns as its the most basic protocol used in Web development.
Hope you would like it. If so please do like share and subscribe.
This document provides an overview and lessons for a Microsoft course on implementing Domain Name System (DNS). It discusses DNS components and records, how name resolution works for Windows clients and servers, installing and managing a DNS server, and creating DNS zones. The key takeaways are how to install the DNS server role, configure zones and records, implement forwarding and caching, and tools for troubleshooting name resolution issues. Hands-on exercises demonstrate creating DNS records and zones and configuring a DNS server.
This document summarizes the key components and functions of DNS (Domain Name System) servers. It discusses how DNS servers handle name resolution queries by querying other DNS servers in a hierarchical manner. It also describes different types of DNS zones (primary, secondary, stub) and how they are used. Active directory integrated zones provide benefits like secure dynamic updates and increased resilience through replication. The document concludes by demonstrating how to sign a DNS zone with DNSSEC to verify signatures.
The document discusses the Domain Name System (DNS) and how it works. It explains that DNS associates domain names with IP addresses, allowing hosts to connect using names instead of hard-to-remember numbers. DNS uses a hierarchical system of servers, including root servers, TLD servers, and authoritative name servers that manage domain records and refer queries to other servers as needed to resolve domain names to IP addresses.
23rd PITA AGM and Conference: DNS Security - A holistic view APNIC
Security Specialist Jamie Gillespie presents on DNS Security, examining the complex interactions of this system, from domain registration to name resolution, the security risks of each component, and the mitigation options currently available at 23rd PITA AGM and Annual Conference in Nadi, Fiji from 8 to 12 April 2019.
This document provides an overview of the Domain Name System (DNS). It describes DNS as a hierarchical distributed database that maps human-friendly domain names to computer-friendly IP addresses. DNS uses a client-server model where DNS clients submit queries to DNS servers to lookup names and the servers respond with the corresponding IP addresses. The document also discusses key DNS concepts like DNS records, zones, primary and secondary servers, and how DNS is used to support technologies like Active Directory and DHCP.
This document discusses domain name system (DNS) configuration and troubleshooting. It describes DNS components like name servers, domains, and zones. It provides instructions for configuring DNS in Linux and Windows, including setting up primary and secondary servers with zone files. Troubleshooting tools like ping, nslookup, and dig are also covered.
This document discusses DHCP and DNS protocols. DHCP is used to dynamically assign IP addresses to clients on a network. A DHCP server can assign addresses automatically from a pool, or assign specific addresses based on a client's MAC address. DNS is used to map domain names to IP addresses, allowing machines to be accessed by name rather than numeric address. DNS uses a distributed database across name servers to resolve names.
How DNS works and How to secure it: An Introductionyasithbagya1
The document discusses DNS (Domain Name System) and how to secure it. It explains that DNS translates domain names to IP addresses, involving recursive queries to root nameservers and authoritative nameservers. Common DNS attacks are spoofing, poisoning, hijacking, amplification and flooding. Recommended security measures include DNS encryption using DNS over HTTPS and TLS, DNSSEC for response authentication, DNSCrypt for encryption and anonymity, redundant infrastructure for DDoS protection, and DNS firewalls.
The document discusses content network navigation and DNS. It defines navigation, switching, routing and explains how DNS translates hostnames to IP addresses. It describes the components of DNS including the domain name space, name servers, resource records, and resolvers. It explains DNS requests, resolution process and tools like nslookup. It also summarizes load balancing techniques for switches including policies for best available server, persistence and differentiated services.
The document discusses the Domain Name System (DNS) which maps domain names to IP addresses. DNS uses a client-server model where clients (resolvers) query name servers to lookup addresses. It describes the hierarchical namespace structure and how names are organized into domains with labels separated by dots. Resource records containing domain, type, class and data are stored in distributed databases to map names and addresses. Caching improves performance by storing recent lookups.
This document discusses planning for DNS infrastructure, including:
1. Creating a DNS server plan by determining capacity, location, roles, and security of DNS servers
2. Creating a DNS namespace plan by selecting an appropriate internal namespace
3. Creating a DNS zone plan by identifying zone requirements, types, and security and planning for additional DNS servers if the main server is overloaded
4. Creating a zone replication and delegation plan by selecting a replication methodology, securing replication, and planning for zone delegation to distribute load across servers
The document provides an overview of the Domain Name System (DNS) including its history, key components, and configuration. DNS converts domain names to IP addresses and vice versa by using a distributed database with a hierarchical structure. The database is divided into zones stored on nameservers. Resolvers query nameservers to lookup names and return results to requesting programs. The document outlines the DNS namespace, nameservers, zones, resource records, configuration files, and utilities for testing and querying DNS.
DNS is used to resolve hostnames to IP addresses. It works on port 53 and uses a hierarchical structure with roots, top-level domains, and second-level domains. DHCP is used to dynamically assign IP addresses to clients on a network. It uses a four-step process (discover, offer, request, acknowledgement) to lease an IP address to a client for a specified duration. Both DNS and DHCP are important for networking and name resolution in Windows environments.
বাংলাদেশের অর্থনৈতিক সমীক্ষা ২০২৪ [Bangladesh Economic Review 2024 Bangla.pdf] কম্পিউটার , ট্যাব ও স্মার্ট ফোন ভার্সন সহ সম্পূর্ণ বাংলা ই-বুক বা pdf বই " সুচিপত্র ...বুকমার্ক মেনু 🔖 ও হাইপার লিংক মেনু 📝👆 যুক্ত ..
আমাদের সবার জন্য খুব খুব গুরুত্বপূর্ণ একটি বই ..বিসিএস, ব্যাংক, ইউনিভার্সিটি ভর্তি ও যে কোন প্রতিযোগিতা মূলক পরীক্ষার জন্য এর খুব ইম্পরট্যান্ট একটি বিষয় ...তাছাড়া বাংলাদেশের সাম্প্রতিক যে কোন ডাটা বা তথ্য এই বইতে পাবেন ...
তাই একজন নাগরিক হিসাবে এই তথ্য গুলো আপনার জানা প্রয়োজন ...।
বিসিএস ও ব্যাংক এর লিখিত পরীক্ষা ...+এছাড়া মাধ্যমিক ও উচ্চমাধ্যমিকের স্টুডেন্টদের জন্য অনেক কাজে আসবে ...
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
The document introduces the DNS system by explaining its purpose of mapping names to resources for easier lookup than numbers. It describes DNS features like global distribution, loose coherency, scalability, reliability, and dynamic updates. Key concepts are explained such as hierarchical DNS names, domains and delegation of subdomains, authoritative and recursive name servers, resource records including SOA and NS records, and how TTL and zone refresh timers maintain consistency.
This document provides an overview of deploying and configuring DNS service. It discusses the DNS architecture based on IP addresses and name resolution. The objectives of DNS are to assign host names without duplication, store the host name database across multiple servers to avoid bottlenecks, and create a standardized naming system. DNS has three main elements - the DNS name space organized in a tree structure with domains and resource records, name servers that contain information about domains and resource records, and resolvers which are client programs that generate queries to the name servers. The document explains how the DNS process works with queries being resolved through a series of DNS servers.
This document provides an overview of DHCP and DNS protocols. It discusses how DHCP can be used to automatically assign IP addresses and network configuration options to clients. DNS is used to map domain names to IP addresses and provides a distributed hierarchical database to store information about domain names. The document describes the basic components, operations, and implementations of both DHCP and DNS protocols.
A Domain Name System assigns an alphabetic name to a numeric IP address and is made up of multiple Domain Name servers that enable IP address mapping for devices on the Internet (usually servers).
The document provides instructions on configuring and troubleshooting DNS, including installing the DNS server role, configuring zones and zone transfers, managing DNS records, and testing the DNS configuration. It covers DNS concepts like namespace, resource records, caching, and troubleshooting tools. The lab exercise has students set up a DNS infrastructure with primary, secondary, and stub zones between two servers to test zone resilience.
This document discusses optimizing and troubleshooting DNS server performance. To optimize DNS, you can disable recursion on non-authoritative servers, delete or modify root hints files, optimize server response settings, use caching-only servers, and adjust SOA record TTL intervals. Troubleshooting DNS involves identifying the problem, checking client/server settings, server records, and DNS traffic. Common problems relate to host registration, dynamic updates, delegation, forwarders, or configuration issues.
in this presentation their is the detailed information regarding Domain Name System that is DNS.
What is DNS,how it works,query, resolution wtc all are being covered thoroughly in this presentation as it would have in for all new upcoming Engineering students to know about the DNS as well as would also help employees to get the better understanding regarding the protocol.
The complete agenda of the presentation is to provide the detailed knowledge regarding dns as its the most basic protocol used in Web development.
Hope you would like it. If so please do like share and subscribe.
This document provides an overview and lessons for a Microsoft course on implementing Domain Name System (DNS). It discusses DNS components and records, how name resolution works for Windows clients and servers, installing and managing a DNS server, and creating DNS zones. The key takeaways are how to install the DNS server role, configure zones and records, implement forwarding and caching, and tools for troubleshooting name resolution issues. Hands-on exercises demonstrate creating DNS records and zones and configuring a DNS server.
This document summarizes the key components and functions of DNS (Domain Name System) servers. It discusses how DNS servers handle name resolution queries by querying other DNS servers in a hierarchical manner. It also describes different types of DNS zones (primary, secondary, stub) and how they are used. Active directory integrated zones provide benefits like secure dynamic updates and increased resilience through replication. The document concludes by demonstrating how to sign a DNS zone with DNSSEC to verify signatures.
The document discusses the Domain Name System (DNS) and how it works. It explains that DNS associates domain names with IP addresses, allowing hosts to connect using names instead of hard-to-remember numbers. DNS uses a hierarchical system of servers, including root servers, TLD servers, and authoritative name servers that manage domain records and refer queries to other servers as needed to resolve domain names to IP addresses.
23rd PITA AGM and Conference: DNS Security - A holistic view APNIC
Security Specialist Jamie Gillespie presents on DNS Security, examining the complex interactions of this system, from domain registration to name resolution, the security risks of each component, and the mitigation options currently available at 23rd PITA AGM and Annual Conference in Nadi, Fiji from 8 to 12 April 2019.
This document provides an overview of the Domain Name System (DNS). It describes DNS as a hierarchical distributed database that maps human-friendly domain names to computer-friendly IP addresses. DNS uses a client-server model where DNS clients submit queries to DNS servers to lookup names and the servers respond with the corresponding IP addresses. The document also discusses key DNS concepts like DNS records, zones, primary and secondary servers, and how DNS is used to support technologies like Active Directory and DHCP.
This document discusses domain name system (DNS) configuration and troubleshooting. It describes DNS components like name servers, domains, and zones. It provides instructions for configuring DNS in Linux and Windows, including setting up primary and secondary servers with zone files. Troubleshooting tools like ping, nslookup, and dig are also covered.
This document discusses DHCP and DNS protocols. DHCP is used to dynamically assign IP addresses to clients on a network. A DHCP server can assign addresses automatically from a pool, or assign specific addresses based on a client's MAC address. DNS is used to map domain names to IP addresses, allowing machines to be accessed by name rather than numeric address. DNS uses a distributed database across name servers to resolve names.
How DNS works and How to secure it: An Introductionyasithbagya1
The document discusses DNS (Domain Name System) and how to secure it. It explains that DNS translates domain names to IP addresses, involving recursive queries to root nameservers and authoritative nameservers. Common DNS attacks are spoofing, poisoning, hijacking, amplification and flooding. Recommended security measures include DNS encryption using DNS over HTTPS and TLS, DNSSEC for response authentication, DNSCrypt for encryption and anonymity, redundant infrastructure for DDoS protection, and DNS firewalls.
The document discusses content network navigation and DNS. It defines navigation, switching, routing and explains how DNS translates hostnames to IP addresses. It describes the components of DNS including the domain name space, name servers, resource records, and resolvers. It explains DNS requests, resolution process and tools like nslookup. It also summarizes load balancing techniques for switches including policies for best available server, persistence and differentiated services.
The document discusses the Domain Name System (DNS) which maps domain names to IP addresses. DNS uses a client-server model where clients (resolvers) query name servers to lookup addresses. It describes the hierarchical namespace structure and how names are organized into domains with labels separated by dots. Resource records containing domain, type, class and data are stored in distributed databases to map names and addresses. Caching improves performance by storing recent lookups.
This document discusses planning for DNS infrastructure, including:
1. Creating a DNS server plan by determining capacity, location, roles, and security of DNS servers
2. Creating a DNS namespace plan by selecting an appropriate internal namespace
3. Creating a DNS zone plan by identifying zone requirements, types, and security and planning for additional DNS servers if the main server is overloaded
4. Creating a zone replication and delegation plan by selecting a replication methodology, securing replication, and planning for zone delegation to distribute load across servers
The document provides an overview of the Domain Name System (DNS) including its history, key components, and configuration. DNS converts domain names to IP addresses and vice versa by using a distributed database with a hierarchical structure. The database is divided into zones stored on nameservers. Resolvers query nameservers to lookup names and return results to requesting programs. The document outlines the DNS namespace, nameservers, zones, resource records, configuration files, and utilities for testing and querying DNS.
DNS is used to resolve hostnames to IP addresses. It works on port 53 and uses a hierarchical structure with roots, top-level domains, and second-level domains. DHCP is used to dynamically assign IP addresses to clients on a network. It uses a four-step process (discover, offer, request, acknowledgement) to lease an IP address to a client for a specified duration. Both DNS and DHCP are important for networking and name resolution in Windows environments.
বাংলাদেশের অর্থনৈতিক সমীক্ষা ২০২৪ [Bangladesh Economic Review 2024 Bangla.pdf] কম্পিউটার , ট্যাব ও স্মার্ট ফোন ভার্সন সহ সম্পূর্ণ বাংলা ই-বুক বা pdf বই " সুচিপত্র ...বুকমার্ক মেনু 🔖 ও হাইপার লিংক মেনু 📝👆 যুক্ত ..
আমাদের সবার জন্য খুব খুব গুরুত্বপূর্ণ একটি বই ..বিসিএস, ব্যাংক, ইউনিভার্সিটি ভর্তি ও যে কোন প্রতিযোগিতা মূলক পরীক্ষার জন্য এর খুব ইম্পরট্যান্ট একটি বিষয় ...তাছাড়া বাংলাদেশের সাম্প্রতিক যে কোন ডাটা বা তথ্য এই বইতে পাবেন ...
তাই একজন নাগরিক হিসাবে এই তথ্য গুলো আপনার জানা প্রয়োজন ...।
বিসিএস ও ব্যাংক এর লিখিত পরীক্ষা ...+এছাড়া মাধ্যমিক ও উচ্চমাধ্যমিকের স্টুডেন্টদের জন্য অনেক কাজে আসবে ...
A Strategic Approach: GenAI in EducationPeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
This presentation was provided by Steph Pollock of The American Psychological Association’s Journals Program, and Damita Snow, of The American Society of Civil Engineers (ASCE), for the initial session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session One: 'Setting Expectations: a DEIA Primer,' was held June 6, 2024.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
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How to Fix the Import Error in the Odoo 17Celine George
An import error occurs when a program fails to import a module or library, disrupting its execution. In languages like Python, this issue arises when the specified module cannot be found or accessed, hindering the program's functionality. Resolving import errors is crucial for maintaining smooth software operation and uninterrupted development processes.
Physiology and chemistry of skin and pigmentation, hairs, scalp, lips and nail, Cleansing cream, Lotions, Face powders, Face packs, Lipsticks, Bath products, soaps and baby product,
Preparation and standardization of the following : Tonic, Bleaches, Dentifrices and Mouth washes & Tooth Pastes, Cosmetics for Nails.
How to Add Chatter in the odoo 17 ERP ModuleCeline George
In Odoo, the chatter is like a chat tool that helps you work together on records. You can leave notes and track things, making it easier to talk with your team and partners. Inside chatter, all communication history, activity, and changes will be displayed.
The simplified electron and muon model, Oscillating Spacetime: The Foundation...RitikBhardwaj56
Discover the Simplified Electron and Muon Model: A New Wave-Based Approach to Understanding Particles delves into a groundbreaking theory that presents electrons and muons as rotating soliton waves within oscillating spacetime. Geared towards students, researchers, and science buffs, this book breaks down complex ideas into simple explanations. It covers topics such as electron waves, temporal dynamics, and the implications of this model on particle physics. With clear illustrations and easy-to-follow explanations, readers will gain a new outlook on the universe's fundamental nature.
How to Build a Module in Odoo 17 Using the Scaffold MethodCeline George
Odoo provides an option for creating a module by using a single line command. By using this command the user can make a whole structure of a module. It is very easy for a beginner to make a module. There is no need to make each file manually. This slide will show how to create a module using the scaffold method.
This slide is special for master students (MIBS & MIFB) in UUM. Also useful for readers who are interested in the topic of contemporary Islamic banking.
Assessment and Planning in Educational technology.pptxKavitha Krishnan
In an education system, it is understood that assessment is only for the students, but on the other hand, the Assessment of teachers is also an important aspect of the education system that ensures teachers are providing high-quality instruction to students. The assessment process can be used to provide feedback and support for professional development, to inform decisions about teacher retention or promotion, or to evaluate teacher effectiveness for accountability purposes.
2. GIAO THỨC THIẾT LẬP
A/ PPTP ( Point To Point Tunnel Protocol )
B/ L2TP ( Layer two Tunnel Protocol )
C/ SSTP (Secure Socket Tunning Protocol )
D/ IKE V2 ( Internet Key Exchange )
3. Ý nghĩa VPN
VPN Tunnel
Tunneling Protocols
Tunneled Data
VPN Client
VPN Server PPP Connection
Transit Network
4. A/ PPTP
Connection 1 : 2 máy liên kết với nhau thông qua internet
User
Connection thứ 2 : được thiết lập
Mọi dữ Liệu được truyền theo connection thứ 2 và được mã hóa theo phương
pháp MPPE 128 bit
5. B/ L2TP
Connection 1 : 2 máy liên kết với nhau thông qua internet
User
Yêu cầu Thiết lập Ipsec
Quá trình IKE – Trao đổi key
2 Máy bắt đầu mã hóa mọi gói tin theo IP sec
Yêu cầu : User
Connection thứ 2 được thiết lập
Mọi dữ liệu được truyền trên connection thứ 2 và được mã hóa theo PP Ipsec
6. RADIUS Authentication Infrastructure
Internet
RADIUS Server
(IAS)
RADIUS Client
(RRAS)
Client
Dials in to a local RADIUS client to
gain network connectivity
1
Forwards requests
to a RADIUS server
2
Authenticates requests
and stores accounting
information
3
Domain
Controller
Communicates to the RADIUS
client to grant or deny access
4
8. Overview of Domain Name System
Domain Name System (DNS) is a hierarchical, distributed database
that contains mappings of DNS domain names to various types of
data, such as IP addresses
DNS is the foundation of the Internet naming scheme and the
foundation of an organization’s naming scheme
DNS supports accessing resources by using alphanumeric names
InterNIC is responsible for delegating administrative responsibility
for portions of the domain namespace and for registering domain
names
DNS was designed to solve issues that arose when there was an
increase in the:
Number of hosts on the Internet
Traffic generated by the update process
Size of the Hosts file
9. What Are the Components
of a DNS Solution?
DNS Servers on the Internet
DNS Servers
DNS Clients
Root “.”
.com
.edu
Resource
Record
Resource
Record
10. How Recursive Queries Work
Computer1
Recursive query for
mail1.nwtraders.com
172.16.64.11
A recursive query is a query made to a DNS server, in which the DNS
client asks the DNS server to provide a complete answer to the query
DNS server checks the forward lookup
zone and cache for an answer to the query
Database
Local DNS Server
11. How Root Hint Works
Root hints are DNS resource records stored on a DNS server that list
the IP addresses for the DNS root servers
microsoft
Cluster of
DNS Servers
Root Hints
DNS Server
Cluster of
Root (.) Servers
com
Computer1
12. How Iterative Queries Work
An iterative query is a query made to a DNS server in which the DNS client
requests the best answer that the DNS server can provide without seeking
further help from other DNS servers. The result of an iterative query is often a
referral to another DNS server lower in the DNS tree
Computer1
Local
DNS Server
nwtraders.com
Root Hint (.)
.com
Iterative Query
Ask .com
3
2
1
13. How Forwarders Work
A forwarder is a DNS server designated by other internal DNS servers to
forward queries for resolving external or offsite DNS domain names
Computer1
nwtraders.com
Root Hint (.)
.com
Iterative Query
Ask .com
Local
DNS Server
Forwarder
14. How DNS Server Caching
Works
Caching is the process of temporarily storing recently accessed information
in a special memory subsystem for quicker access
Where’s Client
A?
Client1
Client2
ClientA
ClientA is at
192.168.8.44
Where’s Client
A?
ClientA is at
192.168.8.44
Caching Table
Host Name IP Address TTL
clientA.contoso.msft. 192.168.8.44 28 seconds
15. How to Configure Properties for the DNS
Server Service
Your instructor will demonstrate how to:
Update root hints on a DNS server
Configure a DNS server to use a forwarder
Clear the DNS server cache by using the DNS console
Clear the DNS server cache by using the DNSCmd
command
16. Practice: Configuring Properties for the
DNS Server Service
In this practice, you will configure the
properties for the DNS Server service
17. Lesson: Configuring DNS Zones
How DNS Data Is Stored and Maintained
What Are Resource Records and Record Types?
What Is a DNS Zone?
What Are DNS Zone Types?
How to Change a DNS Zone Type
What Are Forward and Reverse Lookup Zones?
How to Configure Forward and Reverse Lookup Zones
18. How DNS Data Is Stored and
Maintained
DNS Server
Zone File:
Training.nwtraders.msft.dns
DNS ClientA
Resource records for the zone
training.nwtraders.msft
Host name IP address
DNS ClientA 192.168.2.45
DNS ClientB 192.168.2.46
DNS ClientC 192.168.2.47
DNS ClientB
DNS ClientC
Namespace: training.nwtraders.msft
A resource record (RR) is a standard DNS database structure containing information
used to process DNS queries
A zone is a portion of the DNS database that contains the resource records with the
owner names that belong to the contiguous portion of the DNS namespace
19. What Are Resource Records
and Record Types?
Record type Description
A Resolves a host name to an IP address
PTR Resolves an IP address to a host name
SOA The first record in any zone file
SRV Resolves names of servers providing services
NS Identifies the DNS server for each zone
MX The mail server
CNAME Resolves from a host name to a host name
20. What Are DNS Zone Types?
Zones Description
Primary
Read/write copy of a DNS database
Secondary
Read-only copy of a DNS database
Stub
Copy of a zone containing limited records
Read/Write
Read-Only
Copy of
limited
records
21. What Are Forward and
Reverse Lookup Zones?
Namespace: training.nwtraders.msft.
DNS Client1
DNS Client2
DNS Client3
DNS Server Authorized
for training
Forward
zone
Training
DNS Client1 192.168.2.45
DNS Client2 192.168.2.46
DNS Client3 192.168.2.47
Reverse
zone
1.168.192.in-
addr.arpa
192.168.2.45 DNS Client1
192.168.2.46 DNS Client2
192.168.2.47 DNS Client3
DNS Client2 = ?
192.168.2.46 = ?
22. How to Configure Forward and Reverse
Lookup Zones
Your instructor will demonstrate how to:
Configure a forward lookup zone on a primary zone type
Configure a forward lookup stub zone
Configure a forward lookup zone on a secondary zone type
Configure a reverse lookup zone on a primary zone type
Configure a reverse lookup zone on a secondary zone type
23. How DNS Zone Transfers
Work
Secondary Server Primary and
Master Server
SOA query for a zone
SOA query answered
IXFR or AXFR query for a zone
IXFR or AXFR query answered
(zone transfer)
A DNS zone transfer is the synchronization of authoritative DNS
zone data between DNS servers
1
2
3
4
24. How DNS Notify Works
Secondary Server Primary and
Master Server
DNS notify
Zone transfer
A DNS notify is an update to the original DNS protocol specification
that permits notification to secondary servers when zone changes
occur
Source Server
Destination Server 1
2
3
4
Resource record
is updated
SOA serial number
is updated
25. What Are Dynamic Updates?
Dynamic update enables DNS client computers to
interact automatically with the DNS server to register and
update their own resource records
Organizations that have dynamic changes can benefit
from the dynamic method of updating DNS resource
records
Organizations may benefit from manual update if they:
Are in a smaller environment that has few changes to
their resource records
Have isolated instances, such as when a larger
organization chooses to control every address on every
host.
A dynamic update is the process of a DNS client dynamically creating, registering,
or updating its records in zones that are maintained by DNS servers that can
accept and process messages for dynamic updates
A manual update is the process of an administrator manually creating, registering,
or updating the resource record
26. How DNS Clients Register and Update
Their Own Resource Records by
Using Dynamic Updates
Client sends SOA query
1
DNS server sends zone
name and server IP
address
2
Client verifies existing
registration
3
DNS server responds by
stating that registration
does not exist
Client sends dynamic
update to DNS server
5
Windows
Server 2003
Windows
XP
Windows
2000
DNS Server Resource
Records
1 2 3 4 5
4
27. How a DHCP Server Registers
and Updates Resource Records
by Using Dynamic Updates
Window Server 2003
Running DHCP
DHCP Down-
level Client
DNS Server
Resource
Records
3 4
DHCP client makes an IP
lease request
DHCP server grants IP
lease
DHCP server automatically
generates client’s FQDN
Using dynamic update, the
DHCP server updates the
DNS forward and reverse
records for the client
1
2
3
4
IP Address Lease
1
2
28. How to Configure DNS Manual and
Dynamic Updates
Your instructor will demonstrate how to:
Configure a DNS server running Windows Server 2003
to accept dynamic updates of DNS resource records
Configure a Windows XP Professional client to
dynamically update its DNS resource records in DNS
Configure a DHCP server running Windows Server
2003 to dynamically update DNS resource records in
DNS on behalf of DHCP clients
Manually create a DNS resource record
29. What Is an Active Directory-Integrated
DNS Zone?
DNS zone type Benefit
Non Active
Directory-
integrated zone
Does not require Active Directory
Active Directory-
integrated zone
Stores DNS zone data in Active Directory
and is thus more secure
Uses Active Directory replication instead of
zone transfers
Allows only secure dynamic updates
Uses multi-master instead of single master
structure
An Active Directory-integrated DNS zone is a DNS zone stored in
Active Directory
30. How Active Directory-Integrated
DNS Zones Use Secure
Dynamic Updates
DNS Client
running
Windows XP
Local
DNS Server
Domain Controller with
Active Directory-
Integrated DNS Zone
Find authoritative server
Result
A secure dynamic update is a process in which a client submits a dynamic update
request to a DNS server, and the server attempts the update only if the client can
prove its identity and has the proper credentials to make the update
31. How to Configure Active Directory-
Integrated DNS Zones to Allow Secure
Dynamic Updates Only
Your instructor will demonstrate how to:
Configure Active Directory-integrated DNS zones to
allow secure dynamic updates
Configure security on an Active Directory-integrated
DNS zone
32. How to Configure a DNS
Client
Your instructor will demonstrate how to:
Manually configure a DNS client to use preferred and
alternate DNS servers
Configure the DNS server option and the DNS suffix
option in DHCP
33. Lesson: Delegating Authority for Zones
What Is Delegation of a DNS Zone?
How to Delegate a Subdomain to a DNS Zone
34. What Is Delegation of a DNS
Zone?
The administrator, at the
nwtraders.com lesvel of the
namespace, delegates authority
for training.nwtraders.com and
offloads administration of DNS
for that part of the namespace
DNS server
DNS server
Namespace: training.nwtraders.msft
training.nwtraders.msft
Delegation is the process of assigning authority over child domains in your DNS
namespace to another entity by adding records in the DNS database
training.nwtraders.msft
Training.nwtraders.com now
has its own administrator and
DNS server to resolve queries
in that part of the
namespace/organization