Error No Valid Ds Resolving
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In submit Tutorials Questions Projects Meetups Main Site logo-horizontal DigitalOcean Community Menu Tutorials Questions Projects Meetups Main Site Sign Up Log In submit View All Results By: Justin Ellingwood Subscribe Subscribed Share Contents Contents We hope you find this tutorial helpful. In bind9 no valid ds addition to guides like this one, we provide simple cloud infrastructure for developers. Learn more → error no valid rrsig resolving 17 How To Configure Bind as a Caching or Forwarding DNS Server on Ubuntu 14.04 Posted Jul 1, 2014 351.1k views DNS Networking auth-nxdomain no Ubuntu Tutorial Series This tutorial is part 4 of 7 in the series: An Introduction to Managing DNS An Introduction to Managing DNS DNS, or the domain name system, is an essential component of modern internet communication. It allows us bind forwarders to reference computers by names instead of IP addresses. In this series, we will cover the basic ideas behind DNS so that you feel comfortable working with it. Afterwards, we will walk through various ways that you can gain greater control over your domains and DNS resolution. An Introduction to DNS Terminology, Components, and Concepts February 18, 2014 A Comparison of DNS Server Types: How To Choose the Right DNS Configuration June 30, 2014 How To Set Up a
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Host Name with DigitalOcean August 28, 2012 How To Configure Bind as a Caching or Forwarding DNS Server on Ubuntu 14.04 June 25, 2014 How To Configure Bind as an Authoritative-Only DNS Server on Ubuntu 14.04 June 27, 2014 How To Configure BIND as a Private Network DNS Server on Ubuntu 14.04 August 12, 2014 How To Use NSD, an Authoritative-Only DNS Server, on Ubuntu 14.04 July 3, 2014 Previous Tutorial Next Tutorial Introduction DNS, or the Domain Name System, is often a difficult component to get right when learning how to configure websites and servers. While most people will probably choose to use the DNS servers provided by their hosting company or their domain registrar, there are some advantages to creating your own DNS servers. In this guide, we will discuss how to install and configure the Bind9 DNS server as a caching or forwarding DNS server on Ubuntu 14.04 machines. These two configurations both have advantages when serving networks of machines. Prerequisites and Goals To complete this guide, you will first need to be familiar with some common DNS terminology. Check out this guide to learn about some of the concepts we will be implementing in this guide. We will be demonstrating two separate configurations that accomplish similar goals: a caching and a forwarding DNS server. To follow along, you will need to have access to two computers (at least one of whi
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BIND DNSSEC resolution bug, with a fix. - Tony Finch's blog Recent EntriesFriendsArchiveProfiledotat.at bind allow-query A weird BIND DNSSEC resolution bug, with a fix.« previous entry | next entry » 3rd Dec 2013 | 13:37The bind forward first central recursive DNS servers in Cambridge act as stealth slaves for most of our local zones, and we recommend this configuration for other local DNS resolvers. This has the slightly odd effect that https://www.digitalocean.com/community/tutorials/how-to-configure-bind-as-a-caching-or-forwarding-dns-server-on-ubuntu-14-04 the status bits in answers have AD (authenticated data) set for most DNSSEC signed zones, except for our local ones which have AA (authoritative answer) set. This is not a very big deal since client hosts should do their own DNSSEC validation and ignore any AD bits they get over the wire. It is a bit more of a problem for the toy nameserver I run http://fanf.livejournal.com/129894.html on my workstation. As well as being my validating resolver, it is also the master for my personal zones, and it slaves some of the Cambridge zones. This mixed recursive / authoritative setup is not really following modern best practices, but it's OK when I am the only user, and it makes experimental playing around easier. Still, I wanted it to validate answers from its authoritative zones, especially because there's no security on the slave zone transfers. I had been procrastinating this change because I thought the result would be complicated and ugly. But last week one of the BIND developers, Mark Andrews, posted a description of how to validate slaved zones to the dns-operations list, and it turned out to be reasonably OK - no need to mess around with special TSIG keys to get queries from one view to another. The basic idea is to have one view that handles recursive queries and which validates all its answers, and another view that holds the authoritative zones and which only answers non-recursive queries. The recursive view has "static-stub" zone configurations mirroring all of the zones in the authoritative view, to redirect queries to the loc
Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more http://serverfault.com/questions/717775/bind-server-has-tons-of-no-valid-rrsig-errors about hiring developers or posting ads with us Server Fault Questions Tags Users Badges Unanswered Ask Question _ Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top BIND server has tons of “no valid RRSIG” errors up vote 1 down vote no valid favorite I have a forward-only BIND9 server running on the LAN and it logs hundreds of errors per day like: Aug 29 18:38:29 nuc named[850]: error (no valid RRSIG) resolving 'ubuntu.com/DS/IN': 75.75.75.75#53 Aug 29 18:38:31 nuc named[850]: validating @0x7fc6d826ed50: com SOA: got insecure response; parent indicates it should be secure Aug 29 18:38:31 nuc named[850]: error (no valid RRSIG) resolving 'medium.com/DS/IN': 75.75.75.75#53 Aug 29 18:38:31 nuc named[850]: validating @0x7fc6d4014b80: com SOA: got insecure response; parent indicates it should error no valid be secure It appears clients are still getting results, but these messages are filling up the logs. Relevant lines in named.conf: forwarders { # Comcast 2001:558:feed::1; 2001:558:feed::2; 75.75.75.75; 75.75.76.76; }; forward only; dnssec-enable yes; dnssec-validation auto; dnssec-lookaside auto; What do these errors really mean is happening? Is this a misconfiguration on my end or Comcast's? domain-name-system bind dnssec share|improve this question edited Aug 30 '15 at 5:32 chicks 2,16131228 asked Aug 30 '15 at 2:51 jmw 813 add a comment| 1 Answer 1 active oldest votes up vote 2 down vote accepted It looks like Comcast's servers are deliberately stripping out DNSSEC signatures from the responses they're giving you, so your server cannot validate com. (in this case) even though it knows that one should be signed. This is unlikely to cause any directly noticeable problems, it just leaves you and your users wide open for all the attacks that DNSSEC was created to protect against. Exactly why Comcast want to reduce your level of security you will have to ask them. share|improve this answer answered Aug 30 '15 at 8:09 Calle Dybedahl 1,154412 2 One way of fixing this is to drop the forwarders configuration entirely, allowing your BIND9 server to resolve directly from the authoritative servers instead of going through the Comcast name servers. –Tilman Schmidt Aug 30 '15 at 12:41 I would suspect that they'd stripp