<div dir="ltr"><span style="font-family:arial,helvetica,sans-serif">Provo a correggere...<br></span><div><div class="gmail_extra"><span style="font-family:arial,helvetica,sans-serif"><span class=""></span><br><span class=""></span></span><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><span style="font-family:arial,helvetica,sans-serif"><span class="">
> ========================================<br>
> 2. | qual e' il RR IN AAAA di $1?<br>
> ========================================<br>
</span></span>
<p style="margin-bottom:0cm"><span style="font-family:arial,helvetica,sans-serif"><font color="#000000"><span style="background:rgb(255,255,255) none repeat scroll 0% 0%">dig
<a href="http://eggs.gnu.org">eggs.gnu.org</a> IN AAAA +shor <br>
2001:4830:134:3::10</span></font></span></p>
<span style="font-family:arial,helvetica,sans-serif"><b><span class=""><br>
</span>per cosa sta quel 10 nella query?</b><br></span>
</div><span style="font-family:arial,helvetica,sans-serif"><span class="">E' stato un errore mio copiando il risultato, per cui ho corretto.</span></span></blockquote><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><span style="font-family:arial,helvetica,sans-serif"><span class="">Ad ogni modo quel 10 serve per indicare quale server di posta è preferito in ordine di priorità. </span></span></blockquote><div><span style="font-family:arial,helvetica,sans-serif"> </span></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><span style="font-family:arial,helvetica,sans-serif"><span class="">Anche se in questo caso, essendone soltanto uno, è solo indicativo, non cambia nulla poichè la scelta è obbligata all'unico presente.<br></span></span></blockquote><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><span style="font-family:arial,helvetica,sans-serif"><span class=""> <br></span></span><div><div><span style="font-family:arial,helvetica,sans-serif"><span class="">
> ========================================<br>
> 3.| qual e' il RR IN PTR di $2?<br>
> ========================================<br>
</span></span>
<p style="margin-bottom:0cm"><span style="font-family:arial,helvetica,sans-serif"><font color="#000000"><span style="background:rgb(255,255,255) none repeat scroll 0% 0%">dig
2001:4830:134:3::10 IN PTR<br>
</span></font><font color="#000000"><span style="background:rgb(255,255,255) none repeat scroll 0% 0%">Non
mi restituisce risultati ma nello status leggo </span></font>NXDOMAIN</span></p>
<span style="font-family:arial,helvetica,sans-serif"><br></span>
<span style="font-family:arial,helvetica,sans-serif"><span class=""><br>
> ========================================<br>
> 4. | qual e' <b>un </b>RR IN NS di com.?<br>
> ========================================<br>
</span></span>
<span style="font-family:arial,helvetica,sans-serif"><br>
l'esercizio ne chiede uno<br></span></div></div></blockquote><div><span style="font-family:arial,helvetica,sans-serif"> </span></div><div><span style="font-family:arial,helvetica,sans-serif">Hai ragione, non avevo letto UN. <br></span></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div>
<span style="font-family:arial,helvetica,sans-serif"><span class=""><br>
> ========================================<br>
</span><span class="">8. | qual e' il dominio in-addr.arpa. Per 127.0.0.1</span></span></div></div></blockquote><div><span style="font-family:arial,helvetica,sans-serif">===========================================<br></span></div><div><span style="font-family:arial,helvetica,sans-serif"> Correggo.. <br></span><p style="margin-bottom:0cm"><span style="font-family:arial,helvetica,sans-serif"><font color="#000000"><span style="background:rgb(255,255,255) none repeat scroll 0% 0%">1.0.0.127.in-addr.arpa.</span></font></span></p><p style="margin-bottom:0cm"><span style="font-family:arial,helvetica,sans-serif"><font color="#000000"><span style="background:rgb(255,255,255) none repeat scroll 0% 0%"><br></span></font></span></p></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div><span style="font-family:arial,helvetica,sans-serif"><span class=""><br>
> 9. | qual e' il dominio ip6.arpa. per fe80::e6ce:8ff:2:1?<br></span><br></span><p style="margin-bottom:0cm"><span style="font-family:arial,helvetica,sans-serif"><font color="#000000"><span style="background:rgb(255,255,255) none repeat scroll 0% 0%">1.0.0.0.2.0.0.0.f.f.8.0.e.c.6.e.0.0.0.0.0.0.0.0.0.0.0.0.0.8.e.f.ip6.arpa.</span></font></span></p>
<span style="font-family:arial,helvetica,sans-serif"><br></span>
<p style="margin-bottom:0cm"><span style="font-family:arial,helvetica,sans-serif"><font color="#000000"><span style="background:rgb(255,255,255) none repeat scroll 0% 0%">Ho fatto anche una query</span></font></span></p></div></div></blockquote><div><span style="font-family:arial,helvetica,sans-serif"> </span></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div><p style="margin-bottom:0cm"><span style="font-family:arial,helvetica,sans-serif"><font color="#000000"><span style="background:rgb(255,255,255) none repeat scroll 0% 0%">dig
-x fe80::e6ce:8ff:2:1</span></font></span></p>
<p style="margin-bottom:0cm"><span style="font-family:arial,helvetica,sans-serif"><font color="#000000"><span style="background:rgb(255,255,255) none repeat scroll 0% 0%">Status:NXDOMAIN</span></font>
<br></span></p>
<span style="font-family:arial,helvetica,sans-serif"><span class=""><br></span></span></div></div></blockquote><div><span style="font-family:arial,helvetica,sans-serif"> </span></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div><span style="font-family:arial,helvetica,sans-serif"><span class="">
> 14.| qual e' il RR IN RRSIG di RR IN AAAA di <a href="http://as112.net" rel="noreferrer" target="_blank">as112.net</a><br>
</span>> <<a href="http://as112.net/" rel="noreferrer" target="_blank">http://as112.net/</a>>.?<br>
><br>
> dig <a href="http://as112.net" rel="noreferrer" target="_blank">as112.net</a> <<a href="http://as112.net" rel="noreferrer" target="_blank">http://as112.net</a>> IN AAAA +dnssec +shor<br></span>
<span style="font-family:arial,helvetica,sans-serif"><span class="">> 2001:4f8:3:2bc::198<br>
> AAAA 8 2 3600 20160515101102 20160415091102 24264 <a href="http://as112.net" rel="noreferrer" target="_blank">as112.net</a><br>
</span>> <<a href="http://as112.net" rel="noreferrer" target="_blank">http://as112.net</a>>.<br></span>
<span style="font-family:arial,helvetica,sans-serif"><span class="">> 2CltUuuClRPawhgtjt7lDTm7Kru21veaxDw1/J9EkWLSU6u0Cq+lLd8Z ODGmKtyuivJFmYRB<br>
> iuRObe2ylNgPNM03Vf/0K9eutmRm/pb/0Is9TyBL<br>
> UsF4/PIleR7qb5fw8vBW9a5t80/8D7lW4CrVNu6mgU4lWEWBE5b8wxX/ O+U=<br>
><br>
><br>
> << PERCHÈ SONO DISCORDANTI?>><br></span></span></div></div></blockquote><div><span style="font-family:arial,helvetica,sans-serif"> </span></div><div><span style="font-family:arial,helvetica,sans-serif">Ho visto la risposta di Mauro relativa alle chiavi scadute, ho aperto il link <a href="http://dnsviz.net/d/as112.net/dnssec/">http://dnsviz.net/d/as112.net/dnssec/</a> ( grazie per avermelo ricordato) e ho notato che in effetti le chiavi sono scadute da 2 giorni circa.<br></span></div><div><span style="font-family:arial,helvetica,sans-serif">Analizzando il grafo, l'ipotesi della discordanza che formulo ( sicuramente errata) è che, essendoci dei server con status BOGUS, probabilmente facendo le query in A, AAAA e SOA il risultato non si può considerare attendibile. <br></span></div><div><span style="font-family:arial,helvetica,sans-serif">Da bash però come possiamo capire che ci sono questi problemi? <br>A me solo col public resolver di google ho un errore di SERVERFAIL e quindi presumo che qualcosa non funziona bene...<br></span></div><div><span style="font-family:arial,helvetica,sans-serif"><br></span></div><div><span style="font-family:arial,helvetica,sans-serif">Grazie delle correzioni.<br><br></span></div><div><span style="font-family:arial,helvetica,sans-serif">Abi<br></span></div><div>
<span style="font-family:arial,helvetica,sans-serif"><br><br></span>
<span style="font-family:arial,helvetica,sans-serif"><br></span>
</div></div><span style="font-family:arial,helvetica,sans-serif"><br></span></div></div></div>