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Redes de Comunicações I, DETI
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Guia Prático 1 – Experiências Base
1.
Verify the network configuration of a PC
1.1.
Open a command window and execute the command: ipconfig and register:
(i) how many network interfaces (Linux: ip link; MAC: ifconfig) and
(ii) the IP address and the default gateway of each interface (Linux: ip addr and ip
route; MAC: netstat -r).
1.2.
Repeat the command ipconfig with the option /all (“ipconfig /all”)and register:
(i) the name of the machine (Linux: cat /etc/hostname)
(ii) the physical address of each interface (Linux: ip addr) and
(iii) the DNS servers IP addresses (Linux: cat /etc/resolv.conf).
2.
Name translation to IP addresses and vice-versa
2.1. In a command window, using the command nslookup (same in Linux), determine
the IP addresses associated to each of the following names:
Name
IP Address(es)
www.ua.pt
ua.pt
www.tvi.iol.pt
www.sapo.pt
www.tsf.pt
www.antena3.pt
www.rtp.pt
www.publico.pt
www.google.com
www.google.pt
www.google.es
www.google.fr
nslookup [{address_to_find}]
2.2. Using the command nslookup determine the name associated to the following IP
addresses:
IP Address
Name
193.136.173.58
193.137.55.13
157.240.212.35
31.13.66.174
2.3. Open the browser and access to each of the following URLs:
Addresses
193.137.55.13
157.240.212.35
193.136.173.58
193.136.172.173, 193.136.172.174, 193.136.172.175
193.126.240.138
213.13.146.142
148.69.168.38, 148.69.168.39, 148.69.168.40, 148.69.168.41
94.46.160.176
146.75.90.192
108.157.98.113, 108.157.98.97, 108.157.98.54, 108.157.98.35
216.58.215.164, 2a00:1450:4003:806::2004
216.58.215.163, 2a00:1450:4003:806::2003
142.250.200.99, 2a00:1450:4003:80e::2003
142.250.184.163, 2a00:1450:4003:80c::2003
lvs-ng.ua.pt
www.up.pt
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