Ubuntu 12.04 apt-get update doesn't work

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 :

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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.

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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:

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E: Unable to locate package phpmyadmin

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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 :(

Try the command:

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ping www.google.com

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

I tried and it said :

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unknown host Google

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

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...

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 :

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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

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Quote:

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Originally Posted by 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 :

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

I opened it and it says :

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nameserver 212.124.126.225

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Is this the DNS ?

please check the file /etc/resolv.conf

and add this nameservers google public this below.

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nameserver 8.8.8.8
nameserver 8.8.4.4

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