Lightweight DNS for Multipurpose and Multifunctional Devices
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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. -
8100 Mobile Device Test System Location Test System Module Version 13.1 System Deployment Instructions
8100 Mobile Device Test System Location Test System Module Version 13.1 System Deployment Instructions 8100 MDTS Location Test System Version 13.1 – System Deployment Instructions © 2020 Spirent Communications, Inc. All Rights Reserved. All of the company names and/or brand names and/or product names referred to in this document, in particular, the name “Spirent” and its logo device, are either registered trademarks or trademarks of Spirent plc and its subsidiaries, pending registration in accordance with relevant national laws. All other registered trademarks or trademarks are the property of their respective owners. The information contained in this document is subject to change without notice and does not represent a commitment on the part of Spirent Communications. The information in this document is believed to be accurate and reliable; however, Spirent Communications assumes no responsibility or liability for any errors or inaccuracies that may appear in the document. Page Part Number: 71-008871, Version A1 www.spirent.com 2 8100 MDTS Location Test System Version 13.1 – System Deployment Instructions Table of Contents 1. Introduction ........................................................................................ 5 1.1. Overview .................................................................................................... 5 1.2. How to Contact Us ..................................................................................... 8 2. System Upgrade Instructions ............................................................ -
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. -
Why Open Source Software?
Why Open Source Software / Free Software (OSS/FS)? Look at the Numbers! David A. Wheeler http://www.dwheeler.com/contactme.html Revised as of November 7, 2004 This paper provides quantitative data that, in many cases, using open source software / free software is a reasonable or even superior approach to using their proprietary competition according to various measures. This paper’s goal is to show that you should consider using OSS/FS when acquiring software. This paper examines market share, reliability, performance, scalability, security, and total cost of ownership. It also has sections on non- quantitative issues, unnecessary fears, OSS/FS on the desktop, usage reports, governments and OSS/FS, other sites providing related information, and ends with some conclusions. An appendix gives more background information about OSS/FS. You can view this paper at http://www.dwheeler.com/oss_fs_why.html (HTML format). Palm PDA users may wish to use Plucker to view this. A short briefing based on this paper is also available in PDF and Open Office Impress formats (for the latter, use Open Office Impress). Old archived copies and a list of changes are also available. 1. Introduction Open Source Software / Free Software (OSS/FS) has risen to great prominence. Briefly, OSS/FS programs are programs whose licenses give users the freedom to run the program for any purpose, to study and modify the program, and to redistribute copies of either the original or modified program (without having to pay royalties to previous developers). This goal of this paper is to show that you should consider using OSS/FS when you’re looking for software, based on quantitative measures. -
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 -
SMB/CIFS Configuration Power Guide
SMB/CIFS Configuration Power Guide ONTAP® 9 Fifth edition © Copyright Lenovo 2018, 2021. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant to a General Services Administration (GSA) contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No. GS-35F-05925 Contents Chapter 1. Deciding whether to use Creating an SMB server in a workgroup . 23 the SMB/CIFS Configuration Power Creating local user accounts . 24 Guide . 1 Creating local groups . 25 Managing local group membership . 26 Chapter 2. SMB/CIFS configuration Verifying enabled SMB versions . 27 workflow . 3 Mapping the SMB server on the DNS server. 28 Assessing physical storage requirements . 4 Assessing networking requirements . 5 Chapter 4. Configuring SMB client Deciding where to provision new SMB/CIFS access to shared storage . 29 storage capacity . 6 Creating a volume or qtree storage container . 29 Worksheet for gathering SMB/CIFS configuration Creating a volume . 29 information . 6 Creating a qtree . 30 Chapter 3. Configuring SMB/CIFS Requirements and considerations for creating an access to an SVM . 13 SMB share. 31 Creating an SMB share . 32 Creating an SVM . 13 Verifying SMB client access . 32 Verifying that the SMB protocol is enabled on the SVM . 14 Creating SMB share access control lists . 33 Opening the export policy of the SVM root Configuring NTFS file permissions in a share . 34 volume . 14 Verifying user access. 36 Creating a LIF . 15 Enabling DNS for host-name resolution . 18 Chapter 5. Where to find additional Setting up an SMB server in an Active Directory information. 37 domain . -
Hc Features Overview
HC FEATURES OVERVIEW © Hosting Controller 1998 – 2009. All Rights Reserved. HC Features Overview Contents Proprietary Notice........................................................................................................................ 3 HC Overview ................................................................................................................................4 The Company ........................................................................................................................... 4 The Product............................................................................................................................... 4 Latest Version ........................................................................................................................... 6 Benefits....................................................................................................................................... 6 HC Features................................................................................................................................... 7 Development Framework ....................................................................................................... 7 Centralized Database............................................................................................................... 7 Load Balancer ........................................................................................................................... 7 Windows and Linux Support ................................................................................................ -
Observed Workarounds
Observed Workarounds …to synthetic data returned for uninstantiated names in .COM/.NET Paul Vixie [email protected] Internet Software Consortium Background: DNS Responses • Normal answer – “Here is the data matching your question” • Referral (or “Delegation”) – “Here are the servers who could answer you” • Negative answer (or “RCODE 3”) – “There is no such name” Background: ISC’s Involvement • ISC is a not-for-profit who publishes BIND and operates “f-root” (among other things) • Our relevance and success depends on our responsiveness to the technical community • The technical community gave an intensely negative response to VeriSign’s SiteFinder • We have no financial stake in the outcome Workaround: Translate Address back to “RCODE 3” • Unofficial patches for opensource DNSware – Popular programs like BIND, djbdns, others • Look for 64.94.110.11, substitute RCODE3 – This is the address of the SiteFinder web site • Weakness: address could change naturally – For example, due to a DDoS or load balancer • Weakness: other TLDs use other addresses – One BIND8 patch now has a complete list Workaround: Require Referrals From Some TLDs • ISC released new BIND9 feature in ~40 hrs • “delegation-only” for specified domains • Server for .FOO can only send referral (“delegation”) toward servers for SUB.FOO • Normal answers translated to RCODE 3 • This is not BIND’s default behaviour Workaround: Permit Referrals From Some TLDs • ISC improved new BIND9 feature in 4 days • “root-delegation-only” applies to root and all toplevel domains except those specified -
Securing the Last Mile of DNS with CGA-TSIG
Master System & Network Engineering Securing the last mile of DNS with CGA-TSIG Research Project 2 Student: Supervisors: Marc Buijsman Matthijs Mekking [email protected] (NLnet Labs) [email protected] Jeroen van der Ham (UvA) [email protected] 7 January 2014 Abstract This document describes the research performed during the course of Research Project 2 of the Master's in System and Network Engineering at the University of Amsterdam, under the supervision of NLnet Labs. Research has been done on the use of a proposed protocol called CGA-TSIG as a potential solution to the last mile problem of the Domain Name System (DNS). A proof of concept has been implemented, which resulted in the identification of several problems with the proposed protocol. Nevertheless, it was found that CGA-TSIG can work as believed to be intended, even though the protocol only works on IPv6. An automated method for authenticating the IP addresses of recursive name servers is additionally needed for CGA-TSIG to be a useful and fully secure solution to the last mile problem, but research to such methods was out of the scope of this project and would require future research. CONTENTS Contents 1 Introduction 1 1.1 Research question.........................................2 1.2 Approach.............................................2 2 Background 4 2.1 Transaction Signature (TSIG)..................................4 2.1.1 Signature creation....................................4 2.1.2 Signature verification..................................5 2.1.3 Security..........................................6 2.1.4 Drawbacks........................................6 2.2 Cryptographically Generated Addresses (CGA)........................7 2.2.1 CGA generation.....................................7 2.2.2 CGA verification.....................................8 2.2.3 CGA signatures..................................... -
Download Versacheck Free Versacheck Gold Activation Key Freeware
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DNS Survey: October 2010 Geoffrey Sisson C 2010 the Measurement Factory
DNS Survey: October 2010 Geoffrey Sisson c 2010 The Measurement Factory November 30, 2010 Abstract This study, commissioned by Infoblox, undertakes to measure the number of DNS servers on the Internet and to quantify their various DNS behaviors and configuration choices. 1 Introduction In this study we undertook to measure: • The number of name servers in use in a random 5% sample of the routed IPv4 Internet. • The configuration of zones and associated name servers in a random 1% sample of the domains in the .com, .net, and .org zones. • The implementations and versions of name server software used. • Whether recursion is supported (i.e., open resolvers). • Whether recursive name servers use predictable ports. • Whether authoritative name servers openly permit AXFR. • Whether name servers support TCP. • Configuration decisions for DNSSEC. • Whether DNSSEC-signed zones validate. • How many name servers support EDNS. • How many zones are configured for IPv6, SPF, or DKIM. • How many zones have DNS wildcards. • What SOA and TTL values are in use in a zone. • Whether information in a zone agrees with its parent. • Whether a zone has a lame name server. • Whether the TTLs of the authoritative NS RRs for a zone match. • To what degree redundant name servers are topologically diverse. • How many name servers support 0x20. • The geographic location of name servers. $Id: dns_survey_2010.tex,v 1.27 2010-12-09 22:03:29 geoff Exp $ 3 RESULTS FOR DATASET I 2 Datasets This survey comprises results of two distinct data sets. Dataset I is a random 5% sample of the routed IPv4 Internet.