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Internet access in Linux

Howtos and solutions

When you don't have the configuration (ip addresses)


how to access beam internet in linux (wired)


Often, when you don't have any information provided by your internet provider, it means that the computer retrieves the ip addresses using a DHCP client. If this is true, you can try to get the ip addresses by typing :

dhclient eth0


dhcpcd eth0

When you have the configuration (ip addresses)


This solution supposes that your internet provider has given you

  • an ip address that we call iii.iii.iii.iii
  • a network netmask that we call nnn.nnn.nnn.nnn
  • an ip for the gateway that we call ggg.ggg.ggg.ggg
  • one ore more DNS ip that we call dn1.dn1.dn1.dn1 or dn2.dn2.dn2.dn2 supposing that you have 2 DNS servers

This also supposes that you connect to internet using an ethernet card and that your cable is plugged into the eth0 ethernet card.


Login as a normal user; after that, become root by typing su and after that the root password. Type the following :

/sbin/ifconfig eth0 iii.iii.iii.iii netmask nnn.nnn.nnn.nnn
/sbin/route add default gw ggg.ggg.ggg.ggg
echo "nameserver dn1.dn1.dn1.dn1" > /etc/resolv.conf 
echo "nameserver dn2.dn2.dn2.dn2" >> /etc/resolv.conf

Testing the internet connection

You can test the internet connection by pinging an internet website; for example you can type :


and you should see :

PING ( 56(84) bytes of data.
64 bytes from ( icmp_seq=1 ttl=51 time=230 ms
64 bytes from ( icmp_seq=2 ttl=51 time=227 ms
64 bytes from ( icmp_seq=5 ttl=51 time=242 ms
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