[solved?] Weird Youtube access problem

Kernels & Hardware, configuring network, installing services

[solved?] Weird Youtube access problem

Postby alk » 2011-05-22 14:26

Hello everybody

The problem i'm experiencing is driving me crazy.. I can't access youtube (and possibly other google servers) from my debian system.
Iceweasel returns 'server not found' and epiphany 'Cannot resolve hostname'. At the same time, other pc's in my home network (running windows)
have no issue. To make things more complicated there is no problem accessing youtube from firefox in my windows_xp virtual box machine !!
Same thing i guess happens with other google servers eg. i can access maps.google but it loads no maps.

Furthermore:
While ping, traceroute and nslookup on 'www.youtube.com' returns:
Code: Select all
*****@squeek:~$ ping www.youtube.com
ping: unknown host www.youtube.com

*****@squeek:~$ traceroute www.youtube.com
www.youtube.com: Name or service not known
Cannot handle "host" cmdline arg `www.youtube.com' on position 1 (argc 1)

*****@squeek:~$ nslookup www.youtube.com
;; Truncated, retrying in TCP mode.
;; Connection to 192.168.1.1#53(192.168.1.1) for www.youtube.com failed: connection refused.


same commands on 'youtube.com' seem ok:
Code: Select all
****@squeek:~$ ping youtube.com
PING youtube.com (74.125.47.93) 56(84) bytes of data.
64 bytes from yw-in-f93.1e100.net (74.125.47.93): icmp_req=1 ttl=52 time=148 ms
64 bytes from yw-in-f93.1e100.net (74.125.47.93): icmp_req=2 ttl=52 time=150 ms
64 bytes from yw-in-f93.1e100.net (74.125.47.93): icmp_req=3 ttl=52 time=149 ms
....

******@squeek:~$ traceroute youtube.com
traceroute to youtube.com (74.125.47.93), 30 hops max, 60 byte packets
 1  .......
 2  .......
 3  .......
 4  gig7-0.60-gsr02.ath.OTEGlobe.net (62.75.3.205)  16.252 ms  17.928 ms  19.137 ms
 5  62.75.4.245 (62.75.4.245)  75.403 ms  75.828 ms  76.136 ms
 6  62.75.4.166 (62.75.4.166)  73.933 ms  58.461 ms  59.005 ms
...

*****@squeek:~$ nslookup youtube.com
Server:      192.168.1.1
Address:   192.168.1.1#53

Non-authoritative answer:
Name:   youtube.com
Address: 74.125.127.93
Name:   youtube.com
Address: 74.125.47.93
Name:   youtube.com
Address: 74.125.95.93


Of course same problem occured a week or two ago, and was solved at a point without me doing anything....
So it's not youtube's problem, it doesn't look like a router problem, i have no firewall installed.

I will grrrrreatly aprreciate any ideas !!!
:evil:
Last edited by alk on 2011-05-23 09:53, edited 2 times in total.
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alk
 
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Re: Weird Youtube access problem

Postby dasein » 2011-05-22 17:36

It's almost certainly a DNS problem.

Solution: manually configure your network interface and explicitly set your DNS servers. Two very popular choices are:

OpenDNS
208.67.222.222
208.67.220.220

Google
8.8.8.8
8.8.4.4
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Re: Weird Youtube access problem

Postby alk » 2011-05-23 07:41

I really really thank you dasein. This works ok. I guess i should have tried that myself...

But even now it looks weird. How can some pcs work ok and others won't, on the same network, with the same dns servers (the isp's servers through the modem/router).

Anyway if i never find out, i won't mind...
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