[Internet-e-architetture-di-rete] risoluzioni con dig o drill e whois

[Abigail Bianconi]

Buonasera Antonio,

ecco le mie soluzioni:

R1.dig wikipedia.org IN A +shor
91.198.174.192

R2.dig @8.8.8.8 -x 91.198.174.192 IN PTR +shor
text-lb.esams.wikimedia.org.

R3.dig text-lb.esams.wikimedia.org. in AAAA +shor
2620:0:862:ed1a::1

R4.dig @8.8.8.8 -x 2620:0:862:ed1a::1 IN PTR +shor
text-lb.esams.wikimedia.org.

R5.91.198.174.0 – 91.198.174.255

R6.whois 91.198.174.192 | grep country
country: NL

R7.whois 2620:0:862:ed1a::1 | grep CIDR
CIDR:2620:0:860::/46
Sbirciando la soluzione di Emanuela, ho scoperto l’esistenza di riswhois!

whois -h  riswhois.ripe.net 2620:0:862:ed1a::1 | grep route6

route6:       2620:0:860::/46
route6:       2620:0:862::/48

R8.dig it. IN NS +shor
nameserver.cnr.it.
a.dns.it.
r.dns.it.
m.dns.it.
s.dns.it.
dns.nic.it.

R9.dig dns.nic.it. IN A +shor
192.12.192.5
dig a.dns.it IN A +shor
194.0.16.215
dig r.dns.it IN A +shor
193.206.141.46
dig m.dns.it IN A +shor
217.29.76.4
dig s.dns.it IN A +shor
194.146.106.30
dig nameserver.cnr.it IN A +shor
194.119.192.34

R10.whois 192.12.192.5 | grep inetnum
inetnum:192.12.192.0 – 192.12.193.255

192.12.192.0/24

whois 194.0.16.215 | grep inetnum
inetnum:194.0.16.0 - 194.0.16.255
194.0.16.0/24

whois 193.206.141.46 | grep inetnum
inetnum:193.206.128.0 – 193.206.143.255

193.206.0.0/16

whois 217.29.76.4 | grep inetnum
inetnum:217.29.76.0 – 217.29.79.255

217.29.72.0/21
whois 194.146.106.30 | grep inetnum
inetnum:194.146.106.0 - 194.146.107.255
194.146.106.0/24

whois 194.119.192.34 | grep inetnum
inetnum:194.119.192.0 – 194.119.192.255

194.119.192.0/24

R11.whois MM13-RIPE | grep person
person:Maurizio Martinelli

R12.dig gov.it IN SOA +shor
dns1.fweds-spc.it. dnsmaster.fastweb.it. 2016060909 86400 3600 604800 86400

R13.dig gov.it IN NS +shor
dns1.fweds-spc.it.
dns2.fweds-spc.it.

R14. whois fweds-spc.it | grep Name
Name:Maria Antonietta Gervasio

R15.dig net. IN SOA +dnssec +shor

a.gtld-servers.net. nstld.verisign-grs.com. 1465764582 1800 900 604800
86400
SOA 8 1 900 20160619204942 20160612193942 50762 net.
NHb2Tor5tgIIEDjCY/k7zdYP5Rcoqs2kSLaxx+l+7UQlnJGnG0Sy20sT
2ky2sMWK7QBn6CoH4aVSPZIu
w9jO96Vbioq+Ceo1CLLavkK0JB2iR36d
WzP58Wse446/TBnNDzFLuMdmpGz829SpdjbWS/zttkcQuVHFNtTBTf5O n0Q=

R16. dig @nameserver.cnr.it. CH TXT version.bind +shor
"9.9.5-3ubuntu0.8-Ubuntu"
dig @a.dns.it. CH TXT version.bind +shor
"rome anycast nameserver"
dig @m.dns.it. CH TXT version.bind +shor
"milan nameserver"
dig @r.dns.it. CH TXT version.bind +shor
"rome nameserver"
dig @s.dns.it. CH TXT version.bind +shor
"contact info at netnod.se"
dig @dns.nic.it. CH TXT version.bind +shor
"<HIDDEN>"

R17. Server non raggiungibile perché opera solo in IPV6?
dig @yeti-ns.as59715.net CH TXT version.server +shor


Spero di non aver fatto troppi errori. Ci voleva questo ripasso ;-)
Buona serata.
Abigail
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