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jr88 10-25-2005 09:02 PM

Unable to browse ALL webpages
Linux has been upgrade from slackware 9.1 to 10.0.
The broadband was vdsl(Very High Speed Digital Subscriber Line).I downloaded rp-pppoe-3.6 and set the protocol as DHCP.

Anything run smoothly,but I cannot browse certain popular webpages such as,, and so on.

But,it is very strange that I can browse and to browse yahoo mail.The error message shows the password is invalid.But I am sure it is correct)

When I try to browse the above webpages,the error messages is as follows:

An error occurred while loading

unknown host

I try to ping the web address:


unknown host.

It just shows "unknown host".

I check DNS IP address in file" resolv.conf"


root@darkstar:~# ifconfig
eth0 Link encap:Ethernet HWaddr 00:03:81:48:DF:2C
RX packets:135 errors:0 dropped:0 overruns:0 frame:0
TX packets:133 errors:0 dropped:0 overruns:0 carrier:0
callisions:0 txqueuelen:1000
RX bytes:10244 (10.0 kb) TX bytes:9634 (9.4 kb)
Interrupt:5 Base address:0xec00

lo Link encap:Local Loopback
inet addr: Mask:
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)

ppp0 Link encap: Point-to-Point Protocol
inet addr: P-T-P: Mask:
RX packets:57 errors:0 dropped:0 overruns:0 frame:0
TX packets:58 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:3
RX bytes:2760(2.6 kb) TX bytes:2275 (2.2 kb)


I type "route -n"

Kernel IP routing table
destination gateway Genmask flags metric Ref Use Iface UH 0 0 0 ppp0 U 0 0 0 IO UG 0 0 0 ppp0

Anybody can help me? Thank you very much.

killerbob 10-25-2005 09:24 PM

you might start with having 3 W's instead of just 2 in front of Or just leave the www out, since it's in the process of becoming deprecated....

As for your specific problem, I can only think of two things: the Level3 problems, or a /etc/hosts file. If you've got /etc/hosts, delete it. You probably don't need it. Otherwise, observe the output from my traceroute:


traceroute to (, 30 hops max, 38 byte packets
 1  192.168.X.X (192.168.X.X)  0.387 ms  0.369 ms  0.318 ms
 2  209.X.X.X (209.X.X.X)  9.564 ms  8.537 ms  9.292 ms
 3 (  11.582 ms  9.713 ms  9.813 ms
 4 (  9.908 ms  8.554 ms  9.328 ms
 5 (  9.904 ms  10.311 ms  10.065 ms
 6 (  9.688 ms  9.745 ms  10.568 ms
 7  127.ATM7-0.XR2.TOR3.ALTER.NET (  16.832 ms  16.802 ms  16.723
 8 (  15.754 ms  16.961 ms  15.728
 9 (  32.357 ms  32.771 ms  32.232 m
10  POS7-0.BR3.CHI2.ALTER.NET (  32.334 ms  32.766 ms  32.251 ms
11 (  35.563 ms  35.355 ms  35.697 ms
12 (  35.553 ms  35.916 ms  35.42
9 ms
13 (  81.347 ms  81.594 ms  81.24
4 ms
14 (  81.079 ms  82.276 ms  81.029 ms
15 (  83.619 ms  83.704 ms  84.507 ms
16 (  84.535 ms  85.752 ms  85.190
17 (  88.031 ms  94.963 ms  91.592 ms
18 (  86.974 ms  93.164 ms  99.294 ms

Now... most of my traffic is being routed through, which is MCI's tier 1 ISP, and through Electric Lightwave (ELI). What that means is that my ISP is homed through MCI, and appears to be homed through CWO, who gets their connection from ELI.

As far as Level3 comes in... they're committing a slow suicide, and as part of their efforts, have managed to get themselves cut off by a few other tier 1 ISPs. If you're one of the unfortunate many who only have a single-homed ISP, then you may find that parts of the Internet are simply not accessible through your current connection. The output from traceroute should tell you where the connection is failing, and give a better idea of how to go about fixing it.

jr88 10-25-2005 10:00 PM

sorry.I leave the www out.
I will try my best to fix the problem.
Thank you very much.^^

jr88 10-26-2005 11:59 AM

Hello.I test my linux box through use of traceroute command.It result in :

root@darkstar:~# traceroute

Traceroute: unknown host

Maybe my linux have potential problem that I haven't found it befiore.What should I do?Thank a lot.

mago 10-26-2005 02:03 PM

try using any of this dns,,
Is quite far away so it might be slow, be patient.

Is that or you are cought in the Level 3 ISP war against Cogent and other like them.

Check this, you might be having this problem

jr88 10-27-2005 01:52 AM


Originally posted by mago
try using any of this dns,,
Is quite far away so it might be slow, be patient.

Is that or you are cought in the Level 3 ISP war against Cogent and other like them.

Check this, you might be having this problem

Thank for your reply.I am not at home now,so I am going to try the above DNS address tonight.

I am afraid that the problem is not relative to the Level 3 ISP war against Cought.Because the machine was tested by a Knoppix Live cd.There were no problems.The internet services were all available on it.
Did you have any recommand ?Thank you very much.

jr88 10-27-2005 12:06 PM


I am cheerful that the problem is solved completely.Thank mago and killerbob help.^^

I just add to the resolv.conf file.Would you tell me that why the dns ip can access the internet strict?What is its function?Thank a lot.

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