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Configuring DNS
Configuring DNS The Domain Name System (DNS) is a distributed database in which you can map hostnames to IP addresses through the DNS protocol from a DNS server. Each unique IP address can have an associated hostname. The Cisco IOS software maintains a cache of hostname-to-address mappings for use by the connect, telnet, and ping EXEC commands, and related Telnet support operations. This cache speeds the process of converting names to addresses. Note You can specify IPv4 and IPv6 addresses while performing various tasks in this feature. The resource record type AAAA is used to map a domain name to an IPv6 address. The IP6.ARPA domain is defined to look up a record given an IPv6 address. • Finding Feature Information, page 1 • Prerequisites for Configuring DNS, page 2 • Information About DNS, page 2 • How to Configure DNS, page 4 • Configuration Examples for DNS, page 13 • Additional References, page 14 • Feature Information for DNS, page 15 Finding Feature Information Your software release may not support all the features documented in this module. For the latest caveats and feature information, see Bug Search Tool and the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the feature information table at the end of this module. Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required. -
Testing-Prepare.Pdf
Prepare Update your system so you can connect to the staging server to perform testing – required for all users EXCEPT “new users.” If you are not certain how to complete the steps listed in Prepare, you should abort testing efforts. Breaking your “hosts” file may prevent applications that use the Internet, such as your Web browser, from functioning properly. Also note that this will make non-CMS www.ndsu.edu sites unavailable while you are testing until you perform the clean-up steps on page 11 of this packet. Windows XP 1. Close all browser windows 2. Open My Computer 3. Browse to Local Disk (C:) > WINDOWS > system32 > drivers > etc 4. Double-click hosts 5. In the Open With dialog window, select Notepad and click OK 6. At the end of the file, AFTER 127.0.0.1 localhost, add a new line with the following entry 134.129.111.243 www.ndsu.edu workspaces.ndsu.edu An example of what the file should look like follows these directions Note that if you usually sign in somewhere other than “workspaces.ndsu.edu” you should add that address to the end of this list, for example like 134.129.111.243 www.ndsu.edu workspaces.ndsu.edu english.ndsu.edu 7. Save the file Remember to complete the clean-up steps on page 11 of this packet when you are done testing Windows Vista 1. Close all browser windows 2. Click the Start menu > All Programs > Accessories > and RIGHT-CLICK Notepad 3. Choose Run as administrator 4. In the User Account Control dialog, click Continue or if you are not an administrator, provide a password for an administrator account and click OK 5. -
With ANSIBLE Sessions
SANOG32 bdNOG9 02-10 August, 2018 Dhaka, Bangladesh NETWORK Imtiaz Rahman AUTOMATION (NetDevOps) SBAC Bank Limited [email protected] https://imtiazrahman.com with ANSIBLE Sessions • Session 1: o 14:30 PM – 16:00 PM (Theory with example) • Session 2: o 16:30 PM – 18:00 PM (Configuration and hands on LAB) Today’s Talk 1. Devops/NetDevOps ? 6. Ansible Language Basics 2. Why automation ? 7. Ansible encryption decryption 3. Tools for automation 8. How to run 4. Why Ansible ? 9. Demo 5. Ansible introduction 10. Configuration & Hands on LAB DevOps >devops ? DevOps >devops != DevOps DevOps integrates developers and operations teams In order to improve collaboration and productivity by automating infrastructure, automating workflows and continuously measuring application performance Dev + Ops = DevOps NetDevOps NetDevOps = Networking + DevOps infrastructure as code Why automation ? Avoid Avoid repeated Faster Identical typographical task deployment configuration error (Typos) Tools for automation What is ANSIBLE? • Open source IT automation tool • Red hat Enterprise Linux, CentOS, Debian, OS X, Ubuntu etc. • Need python Why ANSIBLE? • Simple • Push model • Agentless Why ANSIBLE? Puppet SSL Puppet Puppet master Client/agent Ansible Agentless Controller SSH node Managed with ansible node’s How it works 1 2 3 4 Run playbook SSH SSH Laptop/Desktop/ Copy python Run Module Delete Module Server module on device from device Return result 5 What can be done?? • Configuration Management • Provisioning VMs or IaaS instances • Software Testing • Continuous -
IP Addressing: DNS Configuration Guide, Cisco IOS Release 12.4
IP Addressing: DNS Configuration Guide, Cisco IOS Release 12.4 Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 USA http://www.cisco.com Tel: 408 526-4000 800 553-NETS (6387) Fax: 408 527-0883 THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS. THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY. The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as part of UCB’s public domain version of the UNIX operating system. All rights reserved. Copyright © 1981, Regents of the University of California. NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE PROVIDED “AS IS” WITH ALL FAULTS. CISCO AND THE ABOVE-NAMED SUPPLIERS DISCLAIM ALL WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING, USAGE, OR TRADE PRACTICE. IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES, INCLUDING, WITHOUT LIMITATION, LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS MANUAL, EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. -
Cisco IOS Easy IP
WHITE PAPER Cisco IOS Easy IP Summary • Conserve registered IP addresses Cisco IOS Easy IP enables transparent and dynamic IP • Maximize IP address manageability address allocation for hosts in remote environments via Remote networks have variable numbers of end systems that DHCP, reduces router configuration tasks via dynamic PPP/ need access to the Internet. Hence, ISPs are interested in IPCP address negotiation, conserves IP addresses via PAT, allocating just one IP address to each remote LAN. and minimizes Internet access costs for remote offices. In enterprise networks where telecommuter populations Cisco IOS Easy IP is a combination of the following are growing extremely fast, network administrators need functionality: solutions that ease configuration and management of remote • Port Address Translation (PAT), a subset of Network routers and provide conservation and dynamic allocation of Address Translation (NAT) IP addresses within their networks. Such solutions are • Dynamic PPP/IPCP WAN interface IP address negotiation especially important when network administrators • Cisco IOS DHCP Server implement large dialup user pools where ISDN plays a major This paper describes the features and benefits of Cisco IOS role. Easy IP, provides a technical discussion of how it works, As part of Cisco IOS software, the premier platform that including details on the Cisco IOS DHCP Server, and includes delivers network services and enables networked availability, packaging, and platform support information. applications, Cisco IOS Easy IP is a scalability/connectivity service that provides solutions for each of these challenges. It Introduction provides cost savings, scalability, conservation of registered Exponential growth in the remote access router market has IP addresses, and eases router deployment by nontechnical created new challenges for Internet service providers (ISPs) users. -
Microsoft DNS
1 a. Domain Name Service (DNS) encompassing Microsoft DNS From Wikipedia, the free encyclopedia Jump to: navigation, search Microsoft DNS is the name given to the implementation of domain name system services provided in Microsoft Windows operating systems. Contents [hide] 1 Overview 2 DNS lookup client o 2.1 The effects of running the DNS Client service o 2.2 Differences from other systems 3 Dynamic DNS Update client 4 DNS server o 4.1 Common issues 5 See also 6 References 7 External links [edit] Overview The Domain Name System support in Microsoft Windows NT, and thus its derivatives Windows 2000, Windows XP, and Windows Server 2003, comprises two clients and a server. Every Microsoft Windows machine has a DNS lookup client, to perform ordinary DNS lookups. Some machines have a Dynamic DNS client, to perform Dynamic DNS Update transactions, registering the machines' names and IP addresses. Some machines run a DNS server, to publish DNS data, to service DNS lookup requests from DNS lookup clients, and to service DNS update requests from DNS update clients. The server software is only supplied with the server versions of Windows. [edit] DNS lookup client Applications perform DNS lookups with the aid of a DLL. They call library functions in the DLL, which in turn handle all communications with DNS servers (over UDP or TCP) and return the final results of the lookup back to the applications. 2 Microsoft's DNS client also has optional support for local caching, in the form of a DNS Client service (also known as DNSCACHE). Before they attempt to directly communicate with DNS servers, the library routines first attempt to make a local IPC connection to the DNS Client service on the machine. -
Stateless DNS
Technical Report KN{2014{DiSy{004 Distributed System Laboratory Stateless DNS Daniel Kaiser, Matthias Fratz, Marcel Waldvogel, Valentin Dietrich, Holger Strittmatter Distributed Systems Laboratory Department of Computer and Information Science University of Konstanz { Germany Konstanzer Online-Publikations-System (KOPS) URL: http://nbn-resolving.de/urn:nbn:de:bsz:352-0-267760 Abstract. Several network applications, like service discovery, file dis- covery in P2P networks, distributed hash tables, and distributed caches, use or would benefit from distributed key value stores. The Domain Name System (DNS) is a key value store which has a huge infrastructure and is accessible from almost everywhere. Nevertheless storing information in this database makes it necessary to be authoritative for a domain or to be \registered" with a domain, e.g. via DynDNS, to be allowed to store and update resource records using nsupdate . Applications like the ones listed above would greatly benefit from a configurationless approach, giving users a much more convenient experience. In this report we describe a technique we call Stateless DNS, which allows to store data in the cache of the local DNS server. It works without any infrastructure updates; it just needs our very simple, configurationless echo DNS server that can parse special queries containing information desired to be stored, process this information, and generate DNS answers in a way that the DNS cache that was asked the special query will store the desired information. Because all this happens in the authority zone of our echo DNS server, we do not cause cache poisoning. Our tests show that Stateless DNS works with a huge number of public DNS servers. -
TECDEV-1500.Pdf
TECDEV-1500 Getting Started: Network Automation with Ansible Gowtham Tamilselvan Jason Froehlich Yogi Raghunathan Network Automation ? • Becoming agile and move at scale • Reduce deployment time while reducing OPEX cost • Reduce human error; improve the efficiency and reliability of the networks TECDEV-1500 © 2019 Cisco and/or its affiliates. All rights reserved. Cisco Public 3 Speaker Introduction Speaker Introduction - Gowtham • Network Consulting Engineer for 7+ years at Cisco • Supporting large Telecom Service Provider in the US • Primarily focused on R&S and SP technologies • Cisco Live Distinguished Speaker TECDEV-1500 © 2019 Cisco and/or its affiliates. All rights reserved. Cisco Public 5 Speaker Introduction - Jason • Network Consulting Engineer for 7+ years at Cisco • CCIE R&S • Supporting large Telecom Service Provider in the US • NOC Team at CiscoLive US/LATAM • Primarily focused on R&S and SP technologies TECDEV-1500 © 2019 Cisco and/or its affiliates. All rights reserved. Cisco Public 6 Speaker Introduction - Yogi • Sr. Solution Integration Architect, Customer Experience • Supporting Service Providers in the US • Mass Scaled Networking, Segment Routing • Interests: • Operational & Test Automation • Software Defined Networks (SDN) TECDEV-1500 © 2019 Cisco and/or its affiliates. All rights reserved. Cisco Public 7 Session Objective • Get started with Ansible • Learn to read and write playbooks • Automate simple tasks for IOS and XR devices TECDEV-1500 © 2019 Cisco and/or its affiliates. All rights reserved. Cisco Public 8 Time Schedule • Lecture Session 1- 30 Mins • Playbook Exercise – 90 Mins • Break – 15 mins • Lecture Session 2 – 20 Mins • Automating Exercise – 90 Mins • Conclusion – 10 mins TECDEV-1500 © 2019 Cisco and/or its affiliates. -
Managing and Administering DNS in Windows Server 2008 Managing
CCO-BENDER-08-0804-006.qxd 12/22/08 10:18 AM Page 205 chapter6 ManagingManaging andand AdministeringAdministering DNSDNS inin WindowsWindows ServerServer 20082008 After reading this chapter and completing the exercises, you will be able to: • Describe and install Active Directory Domain Services • Manage your Domain Name System (DNS) environment • Troubleshoot your DNS environment • Manage Windows Internet Name Service • Describe the new features of DNS in Windows Server 2008 205 CCO-BENDER-08-0804-006.qxd 12/22/08 10:18 AM Page 206 206 Chapter 6 Managing and Administering DNS in Windows Server 2008 Many networks use Active Directory to implement a domain networking model. Active Directory Domain Services is the latest version of Microsoft’s centralized directory services application. Among other features, it provides user and object management, Group Policy distribution, and networkwide security. Active Directory Domain Services is built on and relies on Domain Name System (DNS) to function properly in a Windows Server 2008 domain environment. This chapter introduces you to Active Directory Domain Services so that you can better understand how it integrates with DNS. You also learn about different deployment scenarios for DNS. Along the way, you examine a number of tools, those based on both the graphical user interface (GUI) and the command line, that you can use to manage your DNS environments and to troubleshoot DNS environments when problems occur. Introduction to Active Directory Domain Services As mentioned previously, Active Directory Domain Services (AD DS) is directly tied to and requires the installation of a DNS server to function properly. Active Directory (AD) clients use DNS to locate all the resources available on the network. -
GW1000 User Manual
GW1000 User Manual Issue: 1.7 Date: 09 September 2016 Table of Contents _______________________________________________________________________________________________________ 1 Introduction ................................................................................................. 8 1.1 Document scope ....................................................................................... 8 1.2 Using this documentation ........................................................................... 8 2 GW1000 Series hardware ........................................................................... 11 2.1 Hardware model varients ......................................................................... 11 2.2 GW1000 Series hardware features ............................................................ 12 2.3 GSM technology ...................................................................................... 12 2.4 WiFi technology ...................................................................................... 12 2.5 Power supply .......................................................................................... 13 2.6 GW1000 Series router dimensions............................................................. 13 2.7 GW1000M Series router dimensions .......................................................... 13 2.8 Compliance ............................................................................................ 13 2.9 Operating temperature range ................................................................... 14 2.10 -
Vmware Horizon 7 7.13 Setting up Published Desktops and Applications in Horizon Console
Setting Up Published Desktops and Applications in Horizon Console OCT 2020 VMware Horizon 7 7.13 Setting Up Published Desktops and Applications in Horizon Console You can find the most up-to-date technical documentation on the VMware website at: https://docs.vmware.com/ VMware, Inc. 3401 Hillview Ave. Palo Alto, CA 94304 www.vmware.com © Copyright 2018-2020 VMware, Inc. All rights reserved. Copyright and trademark information. VMware, Inc. 2 Contents 1 Setting Up Published Desktops and Applications in Horizon Console 6 2 Introduction to Published Desktops and Applications 7 Farms, RDS Hosts, and Published Desktops and Applications 7 Advantages of Published Desktop Pools 8 Advantages of Application Pools 8 3 Setting Up Remote Desktop Services Hosts 10 Remote Desktop Services Hosts 10 Prepare Windows Server Operating Systems for Remote Desktop Services (RDS) Host Use 12 Install Remote Desktop Services on Windows Server 2008 R2 14 Install Remote Desktop Services on Windows Server 2012, 2012 R2, 2016, or 2019 15 Install Desktop Experience on Windows Server 2008 R2 16 Install Desktop Experience on Windows Server 2012, 2012 R2, 2016, or 2019 16 Restrict Users to a Single Session 17 Install Horizon Agent on a Remote Desktop Services Host 18 Horizon Agent Custom Setup Options for an RDS Host 19 Modify Installed Components with the Horizon Agent Installer 22 Silent Installation Properties for Horizon Agent 23 Printing From a Remote Application Launched Inside a Nested Session 28 Enable Time Zone Redirection for Published Desktop and Application -
The Symbian OS Architecture Sourcebook
The Symbian OS Architecture Sourcebook The Symbian OS Architecture Sourcebook Design and Evolution of a Mobile Phone OS By Ben Morris Reviewed by Chris Davies, Warren Day, Martin de Jode, Roy Hayun, Simon Higginson, Mark Jacobs, Andrew Langstaff, David Mery, Matthew O’Donnell, Kal Patel, Dominic Pinkman, Alan Robinson, Matthew Reynolds, Mark Shackman, Jo Stichbury, Jan van Bergen Symbian Press Head of Symbian Press Freddie Gjertsen Managing Editor Satu McNabb Copyright 2007 Symbian Software, Ltd John Wiley & Sons, Ltd The Atrium, Southern Gate, Chichester, West Sussex PO19 8SQ, England Telephone (+44) 1243 779777 Email (for orders and customer service enquiries): [email protected] Visit our Home Page on www.wileyeurope.com or www.wiley.com All Rights Reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except under the terms of the Copyright, Designs and Patents Act 1988 or under the terms of a licence issued by the Copyright Licensing Agency Ltd, 90 Tottenham Court Road, London W1T 4LP, UK, without the permission in writing of the Publisher. Requests to the Publisher should be addressed to the Permissions Department, John Wiley & Sons Ltd, The Atrium, Southern Gate, Chichester, West Sussex PO19 8SQ, England, or emailed to [email protected], or faxed to (+44) 1243 770620. Designations used by companies to distinguish their products are often claimed as trademarks. All brand names and product names used in this book are trade names, service marks, trademarks or registered trademarks of their respective owners.