debian does not open up all websites

lemon09 · 02-09-2014, 12:34 PM

All the solutions that have been posted over here have been tried, and still I do not get the desired result. I also have windows installed on the same machine and what I find is that it can open those sites with ease. Almost all the browsers report the same problem "waiting for a response". I don't understand how many such sites are awaiting in the queue waiting to be discovered in future and if the problem persists I might have to change the Distro (probably the last option).

Shadow_7 · 02-09-2014, 03:42 PM

Waiting / Timeout is most times DNS but could also be routing. Try putting those laggy sites as an entry in /etc/hosts so DNS happens locally and immediately. If that solves it, there's your issue.

$ ping -c 1 google.com
# echo "74.125.225.224 google.com www.google.com *.google.com" >> /etc/hosts

Try a traceroute between you and the site. If it hangs on your local intranet, you have routing issues. Two up and configured interfaces on the same subnet with the same broadcast address?

It could also be that your wireless device is not well supported and the strength of the signal is low. So you have a lot of lost packets between the client and the server. Change locations to be closer to the host if that improves things dramatically, there's a candidate for the trouble maker.

One other thought is that IPv6 is enabled by default in current linux versus 10+yo windows version. You can disable it and that might solve your network quirky-ness. Various values in /proc/sys/net/ipv6/ and passing -4 to dhclient to acquire your lease and probably other more proper ways to handle that.

sgosnell · 02-09-2014, 05:13 PM

www.freshersworld.com looks like a placeholder to me. But maybe that's the way it's supposed to look. In any case, it opens fine in iceweasel. I have no idea why it won't open for you.

jdkaye · 02-09-2014, 11:30 PM

Quote:

Originally Posted by sgosnell

www.freshersworld.com looks like a placeholder to me. But maybe that's the way it's supposed to look. In any case, it opens fine in iceweasel. I have no idea why it won't open for you.

Ditto for me. No problem with that site. As I said in an earlier post the other problem site, http://ssconline.nic.in/, does not support mozilla browsers. You can use opera if you need to use it.
jdk

lemon09 · 02-10-2014, 05:25 AM

@Shadow 7
There are reasons to believe that this is a dns issue. However I tried accessing the website by the IP address manually.
http://54.209.13.212
Yet the site does not seem to load. Moreover had this been a dns issue it shouldn't have showed the IP address in ping. Look at the code:

Code:

# ping -c1 www.freshersworld.com
PING freshersworld.com (54.209.13.212) 56(84) bytes of data.

--- freshersworld.com ping statistics ---
1 packets transmitted, 0 received, 100% packet loss, time 0ms

Also that now I have changed my dns address to 8.8.8.8. I think there are some other problems involved.

lemon09 · 02-10-2014, 06:48 AM

OK!!!!
Here's something more I want to add:
I tried using traceroute to the destination. The output is shown below:

Code:

lobkush@Debian:~$ traceroute -m 100 -q 1 www.freshersworld.com
traceroute to www.freshersworld.com (54.209.13.212), 100 hops max, 60 byte packets
 1  117.194.208.1 (117.194.208.1)  21.294 ms
 2  218.248.162.202 (218.248.162.202)  26.788 ms
 3  218.248.235.129 (218.248.235.129)  60.759 ms
 4  *
 5  *
 6  172.25.81.134 (172.25.81.134)  94.694 ms
 7  *
 8  if-2-2.tcore2.MLV-Mumbai.as6453.net (180.87.38.2)  220.661 ms
 9  *
10  if-17-2.tcore1.LDN-London.as6453.net (80.231.130.130)  224.604 ms
11  195.219.83.186 (195.219.83.186)  332.585 ms
12  ae-4.r22.londen03.uk.bb.gin.ntt.net (129.250.5.24)  344.662 ms
13  ae-4.r22.nycmny01.us.bb.gin.ntt.net (129.250.3.126)  336.557 ms
14  ae-2.r06.nycmny01.us.bb.gin.ntt.net (129.250.4.175)  348.524 ms
15  *
16  ae-2.r05.nycmny01.us.bb.gin.ntt.net (129.250.4.173)  342.481 ms
17  *
18  54.240.229.219 (54.240.229.219)  309.831 ms
19  54.240.228.202 (54.240.228.202)  311.797 ms
20  54.240.229.219 (54.240.229.219)  313.775 ms
21  72.21.220.165 (72.21.220.165)  309.755 ms
22  72.21.222.33 (72.21.222.33)  313.736 ms
23  *
24  72.21.222.33 (72.21.222.33)  321.660 ms
25  *
26  *
27  *
28  *
29  *
30  *
31  *
32  *
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95  *
96  *
97  *
98  *
99  *
100  *

So, here it is. It has covered 100 hops and still it hasn't reached the goal. So, I guess this is not a dns issue but a router one. I should admit that I can access the site from my windows machine. So, what's probably next that I can do???

Please help!!!

Shadow_7 · 02-10-2014, 09:26 AM

Quote:

Originally Posted by lemon09

@Shadow 7
There are reasons to believe that this is a dns issue. However I tried accessing the website by the IP address manually.
http://54.209.13.212

Web hosting companies have many sites hosted on a single IP. So you can't just do the IP only access for sites that don't have a dedicated IP address. If you assign the IP to the name in /etc/hosts, you can use the name so the hosting computer knows which site to serve up.

Traceroute stops outputting useful stuff after 30 hops. But you do have a ton of high latency hops in the list. I would guess that the windows machine has a different MTU size. I don't know what interface you're using, but you might try:

# ifconfig eth0 mtu 576

Or wlan0 or whatever applies in your setup. That's the old dialup gold standard, early internet standard packet size. MTU being the maximum transfer unit. Smaller packets queue better and might improve your latency and connectivity issues.

brianL · 02-10-2014, 10:33 AM

Quote:

Originally Posted by jdkaye

Ditto for me. No problem with that site. As I said in an earlier post the other problem site, http://ssconline.nic.in/, does not support mozilla browsers. You can use opera if you need to use it.
jdk

Or get the User Agent Switcher for Firefox. Switch to Internet Explorer 6, worked for me.

AwesomeMachine · 02-10-2014, 11:56 AM

Maybe you have NoScript installed.

lemon09 · 02-10-2014, 10:22 PM

@AwesomeMachine
I didn't get you.

@Shadow 7
I have an ethernet port through which I have configured a pppoe (point to point over ethernet) connection. All these have been done through the Network Manager. As you said about MTU I find that it is provided as "automatic" in the respective field.

AwesomeMachine · 02-12-2014, 01:05 AM

NoScript is a FireFox (Iceweasel) add-on.