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<p class="MsoNormal"><span style="color:#1F497D">Jukka,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Some odds n ends in no particular order:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">1. DNSSEC was designed for external zones<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">2. Use delv instead of dig when troubleshooting DNSSEC and play around with these options:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">+rtrace (resolver)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">+vtrace (validation)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">You want to see “fully validated”.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">3. Commit these values to memory so that when using delve you will know what is being returned:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">256 = ZSK<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">257 = KSK<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">4. Always remember that the way that records are signed is linear and it will help with situational awareness:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">A DNS record is signed by the ZSK and the ZSK is signed by KSK. And a DSKEY is created by the KSK.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">5. DNSSEC takes a small amount of maintenance and housekeeping to manage key rollovers.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Rolling a ZSK is purely an internal operation and requires no interaction with the outside world. Roll monthly.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Rolling a KSK requires a new DS record to be published to the parent. Roll yearly.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">6. Use NSEC3.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Hope that helps!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">John<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b>From:</b> bind-users [mailto:bind-users-bounces@lists.isc.org]
<b>On Behalf Of </b>Jukka Pakkanen<br>
<b>Sent:</b> Monday, September 23, 2019 3:32 PM<br>
<b>To:</b> Jukka Pakkanen; bind-users@isc.org<br>
<b>Subject:</b> VS: DNSSEC basic information<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Already found out about <span lang="FI"><a href="https://ftp.isc.org/isc/dnssec-guide/html/dnssec-guide.html"><span lang="EN-US">https://ftp.isc.org/isc/dnssec-guide/html/dnssec-guide.html</span></a></span>, and that example the dnssec-enable
option is now on by default… but any usefull hints still gladly received <span style="font-family:"Arial","sans-serif"">
😊</span><br>
<br>
Jukka<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span lang="FI" style="mso-fareast-language:FI">Lähettäjä:</span></b><span lang="FI" style="mso-fareast-language:FI"> bind-users <<a href="mailto:bind-users-bounces@lists.isc.org">bind-users-bounces@lists.isc.org</a>>
<b>Puolesta </b>Jukka Pakkanen<br>
<b>Lähetetty:</b> 23. syyskuuta 2019 22:17<br>
<b>Vastaanottaja:</b> <a href="mailto:bind-users@isc.org">bind-users@isc.org</a><br>
<b>Aihe:</b> DNSSEC basic information<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="FI"><o:p> </o:p></span></p>
<p class="MsoNormal">I am finally diging in to DNSSEC, updating out BIND 9.14.5 servers to support it, both resolving & signing, secure zone transfers etc.<br>
<br>
I just have read the DNSSEC Mastery by Michael W. Lucas from year 2013, and my question basically is, is this information from 6 years back still valid, or hopelessly outdated? I do suppose in six years things have already changed a lot. And while started
testing some things, noticed they are not working as expected, as presented in the book. Like when upgraded our servers to DNSSEC resolving, the only zone I can find the ad flag set is paypal.com, example isc.org does not show it.<br>
<br>
Also, with current status of DNSSEC, is it still recommend/required to have separate authoritative & recursive servers, DNSSEC-wise?<br>
<br>
DLV functionality seems to be dropped from the current BIND too?<br>
<br>
And so on... would like to know how outdated this book is, what has changed since 2013, and also, any hints for a good DNSSEC tutorials with todays BIND versions.<o:p></o:p></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><br>
Jukka<o:p></o:p></p>
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