No Valid Rrsig Resolving Error
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Bind Dnssec-validation
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
Disable Dnssec Bind
vote 1 down vote 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 error (broken trust chain) resolving insecure response; parent indicates it should 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 2,16841328 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
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Dnssec-validation Auto
Community Wiki Other Support Launchpad Answers Ubuntu IRC Support AskUbuntu Official Documentation named no valid signature found User Documentation Social Media Facebook Twitter Useful Links Distrowatch Bugs: Ubuntu PPAs: Ubuntu Web Upd8: Ubuntu OMG! Ubuntu opendns dnssec Ubuntu Insights Planet Ubuntu Activity Page Please read before SSO login Advanced Search Forum The Ubuntu Forum Community Ubuntu Specialised Support Ubuntu Servers, Cloud and Juju Server Platforms [ubuntu] Bind http://serverfault.com/questions/717775/bind-server-has-tons-of-no-valid-rrsig-errors no longer resolves internet DNS queries after upgrading to 12.04 Having an Issue With Posting ? Do you want to help us debug the posting issues ? < is the place to report it, thanks ! Results 1 to 4 of 4 Thread: Bind no longer resolves internet DNS queries after upgrading to 12.04 Thread Tools Show Printable Version https://ubuntuforums.org/showthread.php?t=1984950 Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode May 22nd, 2012 #1 DarwinLabs View Profile View Forum Posts Private Message First Cup of Ubuntu Join Date Jan 2009 Beans 11 Bind no longer resolves internet DNS queries after upgrading to 12.04 Hello, I am no longer able to query any external DNS names such as google.com or ubuntu.com after upgrading to 12.04 Server but I am still able to do internal ones. I noticed the following in the syslog: error (no valid RRSIG) resolving 'ubuntu.com/DS/IN': 192.48.79.30#53 validating @0x7f249c0975e0: com SOA: no valid signature found validating @0x7f249c0975e0: 88V0RT7EQ1MFFA632RRT4O1UDIU0GNQF.com How do I fix this issue, I didn't have this problem before upgrading to 12.04 and haven't touched any configs I also made sure it didn't replace any configurations during the upgrade. Thanks Adv Reply May 23rd, 2012 #2 hawkmage View Profile View Forum Posts Private Message Dipped in Ubuntu Join Date Dec 2010 Beans 572 DistroUbuntu 12.04 Precise Pangolin Re: Bind no longer resolves internet DNS queries after upgrading to 1
server. There are many resources on the Internet that show how to configure DNSSEC on a BIND (Berkeley Internet Name Domain) server. Configuring DNSSEC on EL6 and bind 9 Configuring https://onemoretech.wordpress.com/2013/12/08/no-valid-ds-or-rsig/ DNSSEC on your personal domain Bind authoritative name server with DNSSEC in CentOS 6 Some theory: Paul Wouters - DNSSEC - Securing the DNS and beyond - SecTor 2012 (Video) Errors like "no valid DS", https://lists.isc.org/pipermail/bind-users/2010-March/079328.html "no valid RSIG" or "insecurity proof failed" all relate to whether DNSSEC is properly set up for the BIND server being queried. In the case of most big companies and some of us at home no valid this means that the server we use to resolve internal addresses, and possibly to forward requests out to external servers for external addresses (the servers that may be listed in the "forwarders" directive in named.conf) is not correctly configured for DNSSEC, or has out of date keys. Enterprise sysadmins avert your eyes at this point, because I'm going to provide home DNS admins with a way to avoid this entirely. no valid rrsig Just edit your /etc/named.conf so that the directives enabling DNSSEC look like this: dnssec-enable no; dnssec-validation no; Then restart named (on Fedora 17+, "systemctl restart named.service"). Depending upon how named was compiled for your particular machine, DNSSEC may be the default, so if these lines don't appear anywhere in the file you should insert them. If DNSSEC is explicitly turned on with a "yes" alongside these directives, it is best to explicitly change them to "no". Related This entry was posted in System Administration on December 8, 2013 by phil. About phil My name is Phil Lembo. In my day job I’m an enterprise IT architect for a leading distribution and services company. The rest of my time I try to maintain a semi-normal family life in the suburbs of Raleigh, NC. E-mail me at philipATlembobrothersDOTcom. The opinions expressed here are entirely my own and not those of my employers, past, present or future (except where I quote others, who will need to accept responsibility for their own rants). View all posts by phil → Post navigation ← Notes on restoring kvmdomains Home certificate authority → Search for: CategoriesCategories Select Category Database(18) Development(102) Directory(27) Editorial(72) eldapolink(171) Hardware(46) Identity Management(29) Security(84) System Administration(410) Systems Analysis(120) Uncategorized(1,020) Web(46) Recent Posts N
by: [ date ] [ thread ] [ subject ] [ author ] On Tue, 16 Mar 2010 08:14:40 +0000 (UTC), John Marshall wrote: > > Client: 192.168.25.71 is querying the PTR record for its own address. > Server: 172.25.24.16 is querying itself for the DS record for the > parent of the zone which the client is querying (Why?). > There is no DS record in that zone. Neither the child or > parent zones are signed. > > 16-Mar-2010 18:15:34.761 query-errors: debug 1: client 172.25.24.16#62578: view internal: query failed (SERVFAIL) for 168.192.in-addr.arpa/IN/DS at query.c:4631 > 16-Mar-2010 18:15:34.761 query-errors: debug 2: fetch completed at resolver.c:6117 for 168.192.in-addr.arpa/DS in 1.358282: SERVFAIL/success [domain:168.192.in-addr.arpa,referral:0,restart:1,qrysent:1,timeout:0,lame:0,neterr:0,badresp:1,adberr:0,findfail:0,valfail:0] > 16-Mar-2010 18:15:34.761 query-errors: debug 1: client 192.168.25.71#43718: view guest: query failed (SERVFAIL) for 71.25.168.192.in-addr.arpa/IN/PTR at query.c:4631 > 16-Mar-2010 18:15:34.762 query-errors: debug 2: fetch completed at resolver.c:3023 for 71.25.168.192.in-addr.arpa/PTR in 2.342775: failure/no valid DS [domain:25.168.192.in-addr.arpa,referral:0,restart:2,qrysent:1,timeout:0,lame:0,neterr:0,badresp:0,adberr:0,findfail:0,valfail:1] I should have checked syslog before posting. It shows this going on at the same time... Mar 16 18:15:33 rwsrv03 named[679]: error (chase DS servers) resolving '168.192.in-addr.arpa/DS/IN': 172.25.24.17#53 Mar 16 18:15:33 rwsrv03 named[679]: error (no valid RRSIG) resolving '192.in-addr.arpa/NS/IN': 204.61.216.50#53 Mar 16 18:15:33 rwsrv03 named[679]: error (no valid RRSIG) resolving '192.in-addr.arpa/NS/IN': 192.35.51.32#53 Mar 16 18:15:34 rwsrv03 named[679]: error (no valid RRSIG) resolving '192.in-addr.arpa/NS/IN': 199.212.0.63#53 Mar 16 18:15:34 rwsrv03 named[679]: error (no valid RRSIG) resolving '192.in-addr.arpa/NS/IN': 199.71.0.63#53 Mar 16 18:15:34 rwsrv03 name