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ever since last week , i've noticed that many websites cannot be accessed , and it doesn't matter if i use firefox or chromium as a web browser .

as an example of such a website is:

all i get is a "Server not found" error page . sometimes after a few refreshes it works just fine .

i've checked it on a windows OS machine that is connected to the exact same LAN network , and the website is shown just fine .

i've also checked the /etc/hosts file and it doesn't contain anything suspicious .

what is going on? how can i fix it?

share|improve this question
Have you configured your machine to know where to find a DNS server? – Nicole Hamilton Sep 9 '12 at 14:15
i haven't done any tweaking of this kind. – android developer Sep 9 '12 at 15:49

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