On Sunday, 6 March 2022 12:27:47 GMT John Covici wrote: > On Sun, 06 Mar 2022 06:18:33 -0500, > > Wols Lists wrote: > > On 06/03/2022 09:39, John Covici wrote: > > > Hi. On my gentoo box, no application including ping can access > > > www.youtube.com. However, a dig is doing it correctly, so I can not > > > understand what is happening. A restart of named, gives me the same > > > result. This is very baffling to me. If I change the URL to just > > > youtube.com, it tries to work till the redirect to www.youtube.com and > > > then stops dead. > > > > > > Am I doing something wrong? My windows box is doing this correctly. > > > > > > Thanks in advance for any suggestions. > > > > cat /etc/hosts? > > > > I'm sure you'd remember if you'd messed about with it, but a > > redirect there would explain it ... > > No joy there, it looks like anything on the web under youtube > redirects to www.youtube.com, what I can't figure out is even if I > ping it, it says name or service not known, but dig sees it.
I don't run named, so I'm not sure if some configuration issue is at play with your setup. Did you try traceroute? I am able to ping 'www.youtube.com' as well as 'youtube.com'. They resolve to different IPv4 addresses, but the same IPv6. When I run traceroute the route deviates 3 hops before the target, whether I use ICMP, or TCP on ports 80 and 443. Therefore it seems there is a URL redirect on youtube. When tested from here the redirection is not on the same webserver, but to some other server/farm hidden behind Google's vast estate and reverse proxies. The routing from your network to Google would be specific to your location.
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