Ubuntu – Can ping but no DNS

dns

I have installed Ubuntu 14.04 on my laptop. This laptop has a Qualcomm Atheros QCA9565 Wifi network card, but no ethernet port.

I can connect to the router.
I can ping to 8.8.8.8, but when opening google.com I get "server not found" in Firefox.
I can open websites by using their ip address.

I've opened the connection settings, changed the IPv4 method to "Automatic (DHCP) addresses only". I've set DNS servers to 8.8.8.8,8.8.4.4.

I've restarted the network:

sudo service networking restart

Then I get:

stop: Job failed while stopping
start: Job is already running: networking

So I rebooted to be sure, but no DNS.

How can I get DNS working?

Best Answer

You can set DNS server to the /etc/resolv.conf to check that there is no firewall or another issue.

nano /etc/resolv.conf

And change your name server to 8.8.8.8

Related Solutions

Ubuntu – Make DNS follow configuration from Network Manager in 19.04

I've found a solution.

First, disable systemd-resolve:

sudo systemctl disable systemd-resolved.service
sudo systemctl stop systemd-resolved

Remove the symlink for resolv.conf and create a file:

rm -rf /etc/resolv.conf
touch /etc/resolv.conf
chmod a+rw /etc/resolv.conf

Now change the configuration file for Network Manager to restore the expected result: vi /etc/NetworkManager/NetworkManager.conf:

[main]
plugins=ifupdown,keyfile
# add this line
dns=default

and leave the rest of the file as is. Restart Network Manager:

sudo /etc/init.d/network-manager restart

and configure your preferred DNS servers. Done!

Related Question

Ubuntu – Make DNS follow configuration from Network Manager in 19.04