How to connect a wired internet connection through terminal?
Solution 1:
How to configure the network interface using the terminal
You can configure a network interface from the command line using the networking utilities. You configure your network client hosts with the command line by using commands to change your current settings or by editing a number of system files. To configure your network interface card to automatically connect when wired cable is connected you can follow this "simple" steps:
- Configuring DHCP address for your network card
To configure DHCP address, edit the /etc/network/interfaces
and enter the following lines replacing eth0
in the example with your network interface card:
`sudo nano /etc/network/interfaces`
You should see something similar to this:
auto eth0
iface eth0 inet dhcp
in my computer it looks like this:
auto lo
iface lo inet loopback
So if your network card appears as eth2
for example then you would leave the file like this:
auto eth2
iface eth2 inet dhcp
- Just in case you want to configure a static IP address for your network card
Same procedure as above but you would need to include more information.
Like above, replace eth0
with your networks card name:
sudo nano /etc/network/interfaces
Example File:
auto eth0
iface eth0 inet static
address 192.168.0.100
gateway 192.168.0.1
netmask 255.255.255.0
network 192.168.0.0
broadcast 192.168.0.255
After entering all the details which are needed for your static IP you would need to restart networking services using the following command:
sudo /etc/init.d/networking restart
- Setting up DNS
You can add hostname and/or IP addresses to the file /etc/hosts
for static lookups.
To cause your machine to consult with a particular server for name lookups you simply add their addresses to /etc/resolv.conf
.
For example a machine which should perform lookups from the DNS server at IP address 192.168.0.1 would have a resolv.conf
file looking like this:
sudo nano /etc/resolv.conf
search test.com
nameserver 192.168.0.1
in my case it looks like this:
search cantv.net
nameserver 127.0.0.1
Solution 2:
most answers on this issue are most likely to confuse readers when demostrating what to put in the /etc/resolv.conf
because they use local addresses for the nameserver.
"For example a machine which should perform lookups from the DNS server."
Here DNS server and nameserver mean the same thing. So instead of placing a LAN address in there, put an actual DNS server address. (ie. Google DNS server)
nameserver 8.8.8.8
this link explains the used of the resolv.conf file in more depth. https://theos.in/desktop-linux/resolve-conf-linux-example/