Lost network on ubuntu 14.?

Question

linux

I rented a server on reg.ru (Ubuntu 14) and installed Symfony on it, everything worked fine for a long time.

$ajson=file_get_contents('https://oauth.vk.com/access_token?client_id=********&client_secret=**********&redirect_uri='.$uri.'&code='.$_GET['code']);

Suddenly stopped working with an error:

Warning: file_get_contents(https://oauth.vk.com/access_token?client_id=**********&client_secret=**************&redirect_uri=************&code=****************): failed to open stream: Connection timed out

Also, when calling apt-get update

Last time, a complete reinstallation of the OS helped. But I can't do this all the time.

Answer 1

Try uncommenting line 54 in the /etc/gai.conf file:
precedence ::ffff:0:0/96 100

Answer 2

Unfortunately it didn't help.
Found something similar, but did not understand what to do
forum.ubuntu.ru/index.php?topic=131452.0

Answer 3

Something tells me (apt-get exhaust) that you have ipv6 configured on the machine, but it does not work.