[Internet-e-architetture-di-rete] esercizi uso resolver e authoritative

[Claudio Morando]

ciao, ecco qualche esercizio di quelli assegnati.
> R1
>
> dig ripe.net MX +shor
> 250 molamola.ripe.net.
> 200 mahimahi.ripe.net.
>
> dig @sns-pb.isc.org. ripe.net MX +short
> 250 molamola.ripe.net.
> 200 mahimahi.ripe.net.
>
> dig @8.8.8.8. ripe.net MX +short
> 250 molamola.ripe.net.
> 200 mahimahi.ripe.net.
>
> R2
>
> dig 250 molamola.ripe.net IN AAAA +short
> 2001:67c:2e8:11::c100:1371
>
>
> dig 250 mahimahi.ripe.net IN AAAA +short
> 2001:67c:2e8:11::c100:1372
>
> dig @sns-pb.isc.org. molamola.ripe.net IN AAAA 
> +short2001:67c:2e8:11::c100:1371
>
> dig @sns-pb.isc.org. mahimahi.ripe.net IN AAAA +short
> 2001:67c:2e8:11::c100:1372
>
> dig @8.8.8.8. molamola.ripe.net IN AAAA +short
> 2001:67c:2e8:11::c100:1371
>
> dig @8.8.8.8. mahimahi.ripe.net IN AAAA +short
> 2001:67c:2e8:11::c100:1372
>
> R3
>
> dig -x 2001:67c:2e8:11::c100:1371 PTR +short
> molamola.ripe.net.
>
> dig -x 2001:67c:2e8:11::c100:1372 PTR +short
> mahimahi.ripe.net.
>
> dig @sns-pb.isc.org. -x  2001:67c:2e8:11::c100:1372 PTR +short
> mahimahi.ripe.net.
>
> dig @sns-pb.isc.org. -x  2001:67c:2e8:11::c100:1371 PTR +short
> molamola.ripe.net.
>
> R4
>
> dig google.com NS +short
> ns1.google.com.
> ns2.google.com.
> ns4.google.com.
> ns3.google.com.
>
> dig @8.8.8.8 google.com NS +short
> ns3.google.com.
> ns2.google.com.
> ns4.google.com.
> ns1.google.com.
>
> R5
>
> dig ns1.google.com IN A +short
> 216.239.32.10
>
> dig ns2.google.com IN A +short
> 216.239.34.10
>
> dig ns3.google.com IN A +short
> 216.239.36.10
>
> dig ns4.google.com IN A +short
> 216.239.38.10
>
> R6
>
> dig -x 216.239.32.10 PTR +short
> ns1.google.com.
>
> $ dig -x 216.239.34.10 PTR +short
> ns2.google.com.
>
> dig -x 216.239.36.10 PTR +short
> ns3.google.com.
>
> dig -x 216.239.38.10 PTR +short
> ns4.google.com.
>
> R7
>
> dig 114.19.0.193.in-addr.arpa. PTR +shor
> mahimahi.ripe.net.
>
> dig @8.8.8.8 114.19.0.193.in-addr.arpa PTR +short
> mahimahi.ripe.net.
>
> dig @sns-pb.isc.org 114.19.0.193.in-addr.arpa PTR +short
> mahimahi.ripe.net.
>
> R8
> R9
>
> R10
>
> dig mgdmzirv00.giustizia.it IN A +short
> 89.119.250.66
>
> dig @8.8.8.8 mgdmzirv00.giustizia.it IN A +short
> 89.119.250.66
>
> dig giustizia.it NS +short
> ns1a.btitalia.it.
> ns2a.btitalia.it.
>
> dig @ns1a.btitalia.it. mgdmzirv00.giustizia.it IN A +short
> 89.119.250.66
>
> R11
>
> dig -x 89.119.250.66 IN PTR +short
> 89-119-250-66-static.albacom.net.
>
> dig @8.8.8.8. -x 89.119.250.66 IN PTR +short
> 89-119-250-66-static.albacom.net.
>
> dig @ns1a.btitalia.it. -x 89.119.250.66 IN PTR +short
> 89-119-250-66-static.albacom.net.
>
>
>
> Grazie, a tra un pò.
     Claudio
>
>
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