[Internet-e-architetture-di-rete] risoluzioni con dig o drill e whois
Umberto Biondi
bndmrt at gmail.com
Thu Jun 16 00:33:27 CEST 2016
Ciao Antonio ,
dopo i chiarimenti del caso ecco le mie soluzioni :
R1. dig @85.37.17.51 wikipedia.org
;; ANSWER SECTION:
wikipedia.org. 404 IN A 91.198.174.192
R2. dig @85.37.17.51 -x 91.198.174.192 IN PTR +shor
text-lb.esams.wikimedia.org.
R3. dig @85.37.17.51 text-lb.esams.wikimedia.org. IN AAAA +shor
2620:0:862:ed1a::1
R4. dig @85.37.17.51 -x 2620:0:862:ed1a::1 IN PTR +shor
text-lb.esams.wikimedia.org.
R5. whois 91.198.174.192 | grep inetnum
inetnum: 91.198.174.0 - 91.198.174.255
R6. whois 91.198.174.192 | grep country
country: NL
R7: whois -h riswhois.ripe.net 2620:0:862:ed1a::1 (preso spunto dai
colleghi)
route6: 2620:0:860::/46
origin: AS14907
descr: WIKIMEDIA - Wikimedia Foundation Inc., US
route6: 2620:0:862::/48
origin: AS43821
descr: WIKIMEDIA-EU , NL
R8. dig @85.37.17.51 it. IN NS +shor
s.dns.it.
m.dns.it.
a.dns.it.
dns.nic.it.
r.dns.it.
nameserver.cnr.it.
R9. dig @85.37.17.51 nameserver.cnr.it. IN A +shor
194.146.106.30
217.29.76.4
194.0.16.215
192.12.192.5
193.206.141.46
194.119.192.34
R10. whois 194.146.106.30 | grep inetnum
inetnum:194.146.106.0 - 194.146.107.255
CIDR:194.146.106.30/23
whois 217.29.76.4 | grep inetnum
inetnum:217.29.76.0 – 217.29.79.255
CIDR: 217.29.76.4/22
whois 194.0.16.215 | grep inetnum
inetnum:194.0.16.0 – 194.0.16.255 <217.29.79.255>
CIDR: 194.0.16.0/24 <http://217.29.76.4/22>
whois 192.12.192.5 | grep inetnum
inetnum:192.12.192.0 – 192.12.193.255
CIDR: 192.12.192.5/23
whois 193.206.141.46 | grep inetnum
inetnum:193.206.128.0 – 193.206.143.255
CIDR: 193.206.141.46/20
whois 194.119.192.34 | grep inetnum
inetnum:194.119.192.0 – 194.119.192.255
CIDR: 194.119.192.0/24 <http://193.206.141.46/20>
R11. whois MM13-RIPE | grep person
person:Maurizio Martinelli
R12. dig @85.37.17.51 gov.it IN SOA +shor
dns1.fweds-spc.it. dnsmaster.fastweb.it. 2016060909 86400 3600
604800 86400
R13. dig @85.37.17.51 gov.it <http://gov.it> IN NS +shor
dns1.fweds-spc.it.
R14. whois fweds-spc.it | grep Name
Name:Maria Antonietta Gervasio
R15. dig @85.37.17.51 net. IN SOA +dnssec +shor
a.gtld-servers.net. nstld.verisign-grs.com. 1466028416 1800 900
604800 86400
SOA 8 1 900 20160622220656 20160615205656 50762 net.
WY4Fd/J9uMNMCAk0Y8IIlP2bT4XsAFLXdWkDAF0tMW+Az5eyIngF6In1
GWnQvQU9w/asxajzqSWUpW+31GngBShL3LhiKuTzNK820j2GUftvmfuW
w/PXXtOtpoe6ipe1GQZJ61Ts3mcv+S1CCBpeLYqrF8Vp21byfN/RYFyH EVU=
R16. dig @s.dns.it. CH TXT version.bind +shor
"contact info at netnod.se"
dig @m.dns.it. CH TXT version.bind +shor
"milan nameserver"
dig @a.dns.it. CH TXT version.bind +shor
"rome anycast nameserver"
dig @dns.nic.it. CH TXT version.bind +shor
"<HIDDEN>"
dig @r.dns.it. CH TXT version.bind +shor
"rome nameserver"
dig @nameserver.cnr.it. CH TXT version.bind +shor
"9.9.5-3ubuntu0.8-Ubuntu"
R17. server non raggiungibile dal momento che non ho una connessione IP6
Ciao , a più tardi.
Umberto
Il giorno 11 giugno 2016 20:09, Antonio Prado via
Internet-e-architetture-di-rete <
internet-e-architetture-di-rete at list.informagiovani.comunesbt.it> ha
scritto:
> cari allievi,
>
> vi propongo alcuni esercizietti per mantenere la mente in allenamento:
>
> +---+------------------------------------------------------------------+
> | 1.| qual e' il RR IN A di wikipedia.org? |
> +---+------------------------------------------------------------------+
> | 2.| qual e' il RR IN PTR di $1? |
> +---+------------------------------------------------------------------+
> | 3.| qual e' il RR IN AAAA di $2? |
> +---+------------------------------------------------------------------+
> | 4.| qual e' il RR IN PTR di $3? |
> +---+------------------------------------------------------------------+
> | 5.| qual e' l'inetnum: di $1? |
> +---+------------------------------------------------------------------+
> | 6.| qual e' country: di $5? |
> +---+------------------------------------------------------------------+
> | 7.| qual e' il route6: di $3? |
> +---+------------------------------------------------------------------+
> | 8.| qual e' un RR IN NS di .it? |
> +---+------------------------------------------------------------------+
> | 9.| qual e' il RR IN A di $8? |
> +---+------------------------------------------------------------------+
> |10.| qual e' l'inetnum: (espresso in CIDR) di $9? |
> +---+------------------------------------------------------------------+
> |11.| qual e' la corrispondente person: del nic-handle MM13-RIPE? |
> +---+------------------------------------------------------------------+
> |12.| qual e' il RR IN SOA di gov.it? |
> +---+------------------------------------------------------------------+
> |13.| qual e' il nameserver citato in $12? |
> +---+------------------------------------------------------------------+
> |14.| qual e' il Name: dell'admin contact di $13? |
> +---+------------------------------------------------------------------+
> |15.| qual e' il RR IN RSIG del SOA di .net? |
> +---+------------------------------------------------------------------+
> |16.| qual e' il RR CH TXT di version.bind secondo $8 |
> +---+------------------------------------------------------------------+
> |17.|qual e' il RR CH TXT di version.server secondo yeti-ns.as59715.net|
> +---+------------------------------------------------------------------+
>
> ecco come formattare le risposte:
>
> +---+-----------------------------------------------------------------+
> | A.| qual e' la somma di 2 e 3? |
> +---+-----------------------------------------------------------------+
> | B.| qual e' il doppio di $A? |
> +---+-----------------------------------------------------------------+
>
>
> RA. 5
> RB. 10
>
> caldeggio un vostro sollecito interessamento
>
> grazie
> --
> antonio
>
>
> _______________________________________________
> Internet-e-architetture-di-rete mailing list
> Internet-e-architetture-di-rete at list.informagiovani.comunesbt.it
>
> http://list.informagiovani.comunesbt.it/mailman/listinfo/internet-e-architetture-di-rete
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://list.informagiovani.comunesbt.it/pipermail/internet-e-architetture-di-rete/attachments/20160616/60d2a8ed/attachment.html>
More information about the Internet-e-architetture-di-rete
mailing list