topic Re: Unable to access a website in Archive

Unable to access a website

croxlea — Fri, 20 Jun 2008 20:31:32 GMT

Can anyone tell me why I cannot access www.tomtom.com, I do not have a problem with any other site.

Re: Unable to access a website

steph — Sat, 21 Jun 2008 08:45:22 GMT

Hi there,

Does this problem occur after or before you log into the account? Does an error message come up when you access the website?

Rgds,

Steph

Re: Unable to access a website

croxlea — Sat, 21 Jun 2008 10:21:43 GMT

It happens if I am logged in or out. In the botton L/h corner it says connecting to site 193 173 148 208, after hanging like that for a while an error meesage comes up very very briefly, I think it says res//eframe plus other things also in the message dll error but it is so brief I cannot read it all.

Jenny

Re: Unable to access a website

croxlea — Sat, 21 Jun 2008 12:28:37 GMT

Hi Steph,

The error message I am getting is res://ieframe.dll/dnserror.htm

Jenny

Re: Unable to access a website

Kirok — Wed, 25 Jun 2008 15:58:24 GMT

Couple of questions first, how are you setup? Do you use a proxy? Do you use SBS or Server 2003?

Try this:

Go to the Start menu then run, in the run box type cmd and click okay, it should bring up a black window. In this window type ipconfig /flushdns then hit enter. See if it works now.

If not go back to the black window and type nslookup and hit enter this will bring up a > prompt, here type tomtom.com make a note of the information posted now type server 208.67.222.222 then hit enter and type tomtom.com again make a not of this information also and type exit then hit enter.

If its still not working post this information here please.

Re: Unable to access a website

loupblanc — Tue, 12 Aug 2008 15:45:47 GMT

Hi,

I have the same problem accessing http://www.oracle.com

I followed the steps on the last poster but that didn't resolve anything. Here's the nslookup info I got:

> oracle.com

Server: home

Address: 192.168.1.254

Non-authoritative answer:

Name: oracle.com

Address: 141.146.8.66

> server 208.67.222.222

Default server: resolver1.opendns.com

Address: 208.67.222.222

> oracle.com

Server: resolver1.opendns.com

Address: 205.67.222.222

Non-authoritative answer:

Name: oracle.com.2wire.net

Address: 208.69.34.132

If anyone has any clue, I'd be glad to hear it. We have a local SBS 2003 running but it's only used for email, we're not filtering traffic in and out of the office from there. We run on a BT2700HGV Hub.

Thanks if anyone can help

Re: Unable to access a website

Kirok — Tue, 12 Aug 2008 21:14:09 GMT

Does http://141.146.8.66/ work?

Were those tests done from a client or the SBS server?

I take it you've tried from different machines?

Could you post an ipconfig /all and a tracert 141.146.8.66 if you still can't get to the website.

Re: Unable to access a website

loupblanc — Wed, 13 Aug 2008 08:26:48 GMT

Does http://141.146.8.66/ work?

No, I'm afraid not...

Were those tests done from a client or the SBS server?

On the client but I've done similar tests on the server and still didn't get any joy

I take it you've tried from different machines?

Yes

Could you post an ipconfig /all and a tracert 141.146.8.66 if you still can't get to the website.

Windows IP Configuration

        Host Name . . . . . . . . . . . . : JLPC
        Primary Dns Suffix . . . . . . . :
        Node Type . . . . . . . . . . . . : Broadcast
        IP Routing Enabled. . . . . . . . : No
        WINS Proxy Enabled. . . . . . . . : No
        DNS Suffix Search List. . . . . . : gateway.2wire.net

Ethernet adapter Local Area Connection:

        Connection-specific DNS Suffix . : gateway.2wire.net
        Description . . . . . . . . . . . : Intel(R) 82562V 10/100 Network Connection
        Physical Address. . . . . . . . . : 00-19-D1-50-92-BD
        Dhcp Enabled. . . . . . . . . . . : Yes
        Autoconfiguration Enabled . . . . : Yes
        IP Address. . . . . . . . . . . . : 192.168.1.69
        Subnet Mask . . . . . . . . . . . : 255.255.255.0
        Default Gateway . . . . . . . . . : 192.168.1.254
        DHCP Server . . . . . . . . . . . : 192.168.1.254
        DNS Servers . . . . . . . . . . . : 192.168.1.254
        Lease Obtained. . . . . . . . . . : 13 August 2008 09:10:35
        Lease Expires . . . . . . . . . . : 14 August 2008 09:10:35

>tracert 141.146.8.66

Tracing route to bigip-otn-portal.oracle.com [141.146.8.66]
over a maximum of 30 hops:

1     2 ms     1 ms     1 ms home [192.168.1.254]
2   187 ms   348 ms   129 ms btdhg565-hg1.ealing.broadband.bt.net [217.47.197.72]
3   388 ms   500 ms   443 ms 217.47.197.2
4    68 ms    80 ms    66 ms 217.47.197.110
5    65 ms    58 ms    67 ms 217.47.219.162
6   107 ms    85 ms    97 ms 217.41.168.29
7   256 ms   287 ms   305 ms 217.41.168.65
8   320 ms   311 ms   346 ms 217.41.168.122
9   406 ms   451 ms   507 ms 217.41.168.42
10   575 ms   622 ms   640 ms 217.47.202.241
11   504 ms   618 ms   692 ms core1-pos0-7-0-6.ealing.ukcore.bt.net [194.72.17.105]
12   574 ms   572 ms   417 ms transit2-gig7-0-0.ealing.ukcore.bt.net [62.6.200.118]
13   101 ms   101 ms   124 ms t2c2-ge14-0-0.uk-eal.eu.bt.net [166.49.168.57]
14   748 ms   129 ms   194 ms 195.50.91.153
15   362 ms   329 ms   362 ms ae-31-55.ebr1.London2.Level3.net [4.68.117.158]
16   459 ms   408 ms   474 ms ae-1-100.ebr2.London2.Level3.net [4.69.132.122]
17    71 ms    80 ms    70 ms ae-2.ebr1.London1.Level3.net [4.69.132.146]
18   163 ms   147 ms    66 ms ae-1-100.ebr2.London1.Level3.net [4.69.132.118]
19   149 ms   134 ms   157 ms ae-41.ebr1.NewYork1.Level3.net [4.69.137.66]
20   140 ms   142 ms   140 ms ae-91-91.csw4.NewYork1.Level3.net [4.69.134.78]
21   173 ms   141 ms   173 ms ae-93-93.ebr3.NewYork1.Level3.net [4.69.134.109]
22   167 ms   166 ms   175 ms ae-72-72.csw2.Dallas1.Level3.net [4.69.136.142]
23   164 ms   176 ms   175 ms ae-72-72.csw2.Dallas1.Level3.net [4.69.136.142]
24   184 ms   175 ms   164 ms ae-21-79.car1.Dallas1.Level3.net [4.68.19.67]
25   177 ms   177 ms   172 ms ORACLE-CORP.car1.Dallas1.Level3.net [4.71.196.110]
26   185 ms   176 ms   174 ms ora-141-146-3-31.oracle.com [141.146.3.31]
27   539 ms   714 ms   728 ms bigip-otn-portal.oracle.com [141.146.8.66]

Trace complete.

And That's what I don't get, I can ping and tracert without any problem, but I just can't seem to get the website to show up it's weird.

Thanks for the help 🙂

Re: Unable to access a website

Kirok — Wed, 13 Aug 2008 15:31:36 GMT

Okay what browser you using, if its IE7 try it without add-ons.

try to telnet to the site and do a head or get request and see what happens then:

telnet oracle.com 80 [enter]

HEAD / HTTP/1.1 [enter] [enter]

A successful reponse will look something like this, ignore the error its for something unrelated:

HTTP/1.1 400 Bad Request
Set-Cookie: BIGipServerwww_prod_pool=2249036429.24862.0000; expires=Wed, 13-Aug-2008 15:26:14 GMT; path=/
Date: Wed, 13 Aug 2008 15:21:14 GMT
Server: OracleAS-Web-Cache-10g/10.1.2.2.1
Content-Type: text/html

<HTML><HEAD><TITLE>Invalid Host Specified</TITLE></HEAD>
<BODY>The request did not specify a valid virtual host.</BODY></HTML>

Two other things to try, start into safe mode with networking and check the router to see if some sort of access restriction has been applied.

Let me know if any of this works.

Message Edited by Kirok on 13-08-2008 04:31 PM

Re: Unable to access a website

loupblanc — Wed, 13 Aug 2008 15:52:36 GMT

I've done tests in FF3, IE7, Opera 9.5, Safari 3.1, I even booted the machine with Knoppix to work out if it wasn't a zonealarm thing or something but I didn't get more joy with IceWeasel and Konqueror...

My HTTP request on oracle's telnet gave pretty much the same as yours, except for the html markup:

HTTP/1.1 400 Bad Request
Set-Cookie: BIGipServerwww_prod_pool=2198704781.24862.0000; expires=Wed, 13-Aug-2008 15:38:06 GMT; path=/
Date: Wed, 13 Aug 2008 15:33:07 GMT
Server: OracleAS-Web-Cache-10g/10.1.2.2.1
Content-Type: text/html

As for the router, I've tried to turn it upside down but the firewall on this type of hub isn't exactly great to configure. There's nowhere I can see that some restrictions are used. I'm basically the one setting up the hub so I can change things if required, provided I can work out how. I've set up Parental Controls on some machines but not on others and either way even by explicitely adding oracle.com in the list of authorised websites, it still has issues. Besides, it's not giving me a 500 or 404 error, it does attempt to connect but it looks as if mostdata packets are being dropped as it tries to pass into out office network.

I'm starting to wonder if that hub hasn't got any issues somehow.

Cheers...

Re: Unable to access a website

Kirok — Wed, 13 Aug 2008 17:06:08 GMT

See the telnet via port 80 was simulating a web-brower so if its a block of some sort it would have to be header based but if your trying it from more than one computer then its unlikely a browser misconfig, group policy would be the other option but only email is running from the SBS server

All the BT routers are crap, sometimes the Burouters easier to configure from the MDC, it also gives you more config options trying going to its address forward slash MDC so http://192.168.1.254/mdc in your situation. See if somethings turned on there if not, maybe a router reset is in order. Have you tried accessing Oracle from a web based proxy?

Message Edited by Kirok on 13-08-2008 06:06 PM

Re: Unable to access a website

loupblanc — Thu, 14 Aug 2008 10:25:35 GMT

I'd forgotten about mdc. That said, I really can't find any settings in there which could suggest anything dodgy blocking ... or rather filtering I should say, access to oracle.com. There's nothing explicit on there anyway that I can see.

I can access it via a web based proxy, yes (I wasn't even aware such sites existed, thanks for the tip). Anonasurf isn't the best thing to use to access the website but it's something.

Re: Unable to access a website

Kirok — Thu, 14 Aug 2008 12:55:10 GMT

You running any domain or extra functionality on SBS or just email, I mean that shouldn't influence the Linux LiveCDs you've tried but still worth a look?

From what you've said I'm inclined to believe the common element is the router, unless a common configuration has been applied to each computer but the LiveCDs have eliminated that. Check the DMZ as I've said below just to make sure nothings in it

I'd try a complete reset of the router just to eliminate anything at that end, if you've got a spare try that. Failing that go to the firewall and turn off options to test (start with the more esoteric) check to make sure nothings in the DMZ, Access restrictions are usually done for each individual device from the LAN tab so its odd that it would be turned on for all but worth a check.

I mean has it always been like this, have you recently moved sites, has a former employee just left?

This is a complete non-sequitor but if the recent testing has been all from the usual windows machines its worth a try from the command line do a

netsh winsock reset

netsh int ip reset all

and then restart, I don't suspect it will work but like I said worth a try. Another option and I'm really going out on one here is to monitor the connection with something like http://www.wireshark.org

Re: Unable to access a website

croxlea — Thu, 14 Aug 2008 16:43:14 GMT

I have sorted it now, thank you.

Re: Unable to access a website

Kirok — Thu, 14 Aug 2008 17:03:57 GMT

Apologies, I'll imagine you're getting update emails; threads been hijacked now so just ignore them or turn them off.