Ubuntu 12.04 apt-get update doesn't work

[haguiru]

Well, all the comands are working on my VirtualMachine of my computer, but yesterday I bought a host and I'm using remote connection with the Virtual Machine of the host. The version is Ubuntu 12.04, and then when I try to execute the command 'apt-get update' something like this appears :

root@ubuntu:~# apt-get update
Err Ubuntu security notices | Ubuntu precise-security InRelease

Err Index of / precise InRelease

Err Index of / precise-updates InRelease

Err Ubuntu security notices | Ubuntu precise-security Release.gpg
Temporary failure resolving 'security.ubuntu.com'
Err Index of / precise-backports InRelease

Err Index of / precise Release.gpg
Temporary failure resolving 'br.archive.ubuntu.com'
Err Index of / precise-updates Release.gpg
Temporary failure resolving 'br.archive.ubuntu.com'
Err Index of / precise-backports Release.gpg
Temporary failure resolving 'br.archive.ubuntu.com'
Reading package lists... Done
W: Failed to fetch http://br.archive.ubuntu.com/ubuntu/...cise/InRelease

W: Failed to fetch http://br.archive.ubuntu.com/ubuntu/...ates/InRelease

W: Failed to fetch http://br.archive.ubuntu.com/ubuntu/...orts/InRelease

W: Failed to fetch http://security.ubuntu.com/ubuntu/di...rity/InRelease

W: Failed to fetch http://security.ubuntu.com/ubuntu/di...ty/Release.gpg Temporary failure resolving 'security.ubuntu.com'

W: Failed to fetch http://br.archive.ubuntu.com/ubuntu/...se/Release.gpg Temporary failure resolving 'br.archive.ubuntu.com'

W: Failed to fetch http://br.archive.ubuntu.com/ubuntu/...es/Release.gpg Temporary failure resolving 'br.archive.ubuntu.com'

W: Failed to fetch http://br.archive.ubuntu.com/ubuntu/...ts/Release.gpg Temporary failure resolving 'br.archive.ubuntu.com'

W: Some index files failed to download. They have been ignored, or old ones used instead.

Then, I tried executing the command : apt-get install upgrade, but it says 0 files added and things like that.

I tried to execute the other commands (apt-get install openssh-server , apt-get install php5, apt-get install phpmyadmin , etc), but it says:

E: Unable to locate package phpmyadmin

I'm pretty sure that the other commands can't be executed due to the fact that 'apt-get update' doesn't work.

Thanks in Advance. I really need help :(

[MentaL]

[Romulan]

Try the command:

ping www.google.com

If there is something wrong, then your virtual machine don't have any access to the web :)

[haguiru]

I tried and it said :

unknown host Google

It means there's no internet connection ? D:
PS: I can acess the IP through WinSCP to view the files.

[Romulan]

Very weird... Check the gateway in your network config of your virtual machine! It must match with the IP of your router/box/whatever you use to connect to internet...

[haguiru]

Well, this Virtual Machine is from a hoster server, therefore the IP is not from my machine , neither the gateway. I executed the following command : nano /etc/network/interfaces, and then it appeared :

auto eth0
iface eth0 inet static
address 212.124.126.250
netmask 255.255.255.224
network 212.124.126.224
broadcast 212.124.126.255
gateway 212.124.126.225

[fluxbox]

Well, this Virtual Machine is from a hoster server, therefore the IP is not from my machine , neither the gateway. I executed the following command : nano /etc/network/interfaces, and then it appeared :

Check /etc/resolv.conf should have at least a line for your DNS server.

[haguiru]

I opened it and it says :

nameserver 212.124.126.225

Is this the DNS ?

[corujaobr]

please check the file /etc/resolv.conf

and add this nameservers google public this below.

nameserver 8.8.8.8
nameserver 8.8.4.4