Re: Web sites suddenly blocked

2014-01-24 Thread Amanda Sherrell
On Sunday, April 28, 2013 2:37:36 PM UTC-4, Sky King wrote:
 I came home from a trip, turned on my computer, and found that I am now 
 blocked from certain favorite web sites. I am taken to a page at 
 www.blocked-website.com which tells me, for example, Sorry, but (site) is 
 blocked on this network. This site was categorized in (category). Contact 
 your network administrator. Underneath this message it says Powered by 
 OpenDNS.
 
 
 OpenDNS appears to be legitimate, offering parental controls, but there are 
 no children in this household, and I do not use their services. There are 
 only two computers in the house, my Mac and my wife's PC, both connected to 
 the Internet via a router. Neither have parental controls activated.
 
 
 I contacted my provider, Verizon, and they maintain that nothing has changed 
 with them and that the problem is in my computer. 
 
 
 Computer is a dual 1.25 GHz MDD PowerPC G4 running OSX 10.5.8. Browser is 
 Safari 5.0.6.
 
 
 What goes on here?
 
 
 
  
 
 
 Michael McMurtrey
 Carrollton, TX

This also happened to me  on my iPad Air with iOS 7.  And I couldn't access my 
Facebook page via the browser and I remembered this started happening the 
second I  allowed the scrabble Facebook game access to my profile. So luckily I 
had the Facebook app and was able to access just enough of my account to delete 
the scrabble game from my security settings. Which thankfully gave me access to 
my account via browser once more. Needless to say be very careful what you 
allow to access your accounts on the internet as there are those site out there 
that will  shut you down to gain access of your information.

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Re: Web sites suddenly blocked

2013-04-30 Thread gifutiger
Greetings,

DNS stands for Directory Name Server and has nothing to do with your 
router. OPEN is just the name of a server, and there are lots of DNS 
units throughout the world.

The primary ip address for OPEN is 208.67.222.222 and the secondary ip 
address is 208.67.220.220

The purpose of a DNS is to translate words/names i.e. www.myhome.com into a 
ip address because the internet really locates URL's through an ip address.

Using a Mac open System Preferences then open Network and when that 
opens you will see information relating to the internet that your system is 
using. There should be, if you are using a local router a statement of IP 
Address: 192.168.1.x and a Subnet Mask: 255.255.255.0
Next there should be, Router: 192.168.1.1 and the next item is DNS Server: 
8.8.8.8  8.8.4.4 (which is Googles DNS address that I'm using.)

The specified DNS can be changed (which is another subject) however the DNS 
is by default set by your internet provider.

The default DNS can be reset by reseting your internet box.

Cheers

Harry
(`-''-/).___ ..- -''`.. _
( 6_ 6 )`-.( ``-._.-`)
(_Y_.)'._   )  `._ `.'``-..-'
 ` `_..`--'_..-_/  /--'_.' ,'
   ,-''  ,'  (((.-' fl

On Sunday, April 28, 2013 11:37:36 AM UTC-7, Sky King wrote:

 I came home from a trip, turned on my computer, and found that I am now 
 blocked from certain favorite web sites. I am taken to a page at 
 www.blocked-website.com which tells me, for example, Sorry, but (site) 
 is blocked on this network. This site was categorized in (category). 
 Contact your network administrator. Underneath this message it says 
 Powered by OpenDNS.

 OpenDNS appears to be legitimate, offering parental controls, but there 
 are no children in this household, and I do not use their services. There 
 are only two computers in the house, my Mac and my wife's PC, both 
 connected to the Internet via a router. Neither have parental controls 
 activated.

 I contacted my provider, Verizon, and they maintain that nothing has 
 changed with them and that the problem is in my computer. 

 Computer is a dual 1.25 GHz MDD PowerPC G4 running OSX 10.5.8. Browser is 
 Safari 5.0.6.

 What goes on here?


 Michael McMurtrey
 Carrollton, TX






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Re: Web sites suddenly blocked

2013-04-30 Thread peterhaas

 The specified DNS can be changed (which is another subject) however the
 DNS
 is by default set by your internet provider.

 The default DNS can be reset by reseting your internet box.

A lot of folks ELECT to use a secondary DNS as their primary DNS as that
secondary DNS offers improved resistance to and/or protection from spam
and access to suspicious sites.

Sure, your ISP will automatically give you access to two or more of THEIR
DNSes, but you are not required to use these to resolve your net accesses.

Heck, you can even operate your own DNS. Or use a DNS which is not one of
yours.

At one point, I had several TLDs registered with one of the usual
suspects. Then I switched all my new business to another.

Yet, I forgot to change the DNSes on those previously registered TLDs.

I was, thereby, able to maintain the same level of service as I had before
(email forwarding, etcetera), with the old registrar, yet I was no longer
one of their customers.

After I discovered this oversight on my part, I changed the name servers
to point to the new ones, and those problems went away.


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Re: Web sites suddenly blocked

2013-04-30 Thread Jerry

Actually, its Domain Name System.

http://en.wikipedia.org/wiki/Domain_Name_System



On 04/30/13 11:43 AM, gifutiger wrote:

Greetings,

DNS stands for Directory Name Server and has nothing to do with your
router.


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Re: Web sites suddenly blocked

2013-04-30 Thread Doug McNutt
At 09:43 -0700 4/30/13, gifutiger wrote:
DNS stands for Directory Name Server and has nothing to do with your router. 
OPEN is just the name of a server, and there are lots of DNS units 
throughout the world.


Just to avoid confusion.  In this context DNS is Domain Name Server and is very 
much associated with your router whenever you use the internet or even access 
local machines via an IP address like 192.168.xxx.xxx

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Re: Web sites suddenly blocked

2013-04-30 Thread Jerry

Doug,

I am not sure I am following you here on the on the RFC 1918 address 
space issue.  Unless a person has set up an internal DNS server 
resolving private address space, a person would either typically specify 
the private address directly, or would use a hosts file for internal usage.


Can you elaborate further please?



On 04/30/13 03:31 PM, Doug McNutt wrote:



Just to avoid confusion. In this context DNS is Domain Name Server
and  is very much associated with your router whenever you use the internet
or even access local machines via an IP address like 192.168.xxx.xxx


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Re: Web sites suddenly blocked

2013-04-30 Thread Dan

At 4:00 PM -0500 04/30/2013, Jerry wrote:
I am not sure I am following [Doug] here on the on the RFC 1918 
address space issue.  Unless a person has set up an internal DNS 
server resolving private address space, a person would either 
typically specify the private address directly, or would use a hosts 
file for internal usage.


Can you elaborate further please?


gifutiger said DNS stands for Directory Name Server and has 
nothing to do with your router.


Doug simply pointed out that that is incorrect on both points.  DNS 
stands for Domain Name System.  And that the OP's issue (remember the 
OP?) probably has everything to do with his local home/office NAT 
router.


As for using local domain names on a LAN (over a non publically 
routed address space),,, if you need assistance with how to set this 
up with your router, then start a new thread and provide some 
specific details about your configuration.


- Dan.
--
- Psychoceramic Emeritus; South Jersey, USA, Earth.

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Re: Web sites suddenly blocked

2013-04-30 Thread Doug McNutt
We use a router provided by our service provider which used to be Qwest but is 
now Century Communications.

The modem that talks to the telephone pair with radio frequency above the voice 
band also acts as a domain name server. Other machines which usually have cute 
names that we assign have the choice of DHCP, dynamic host control, or 
assigning permanent IP addresses that all start with 192.168.  DHCP assigns an 
IP address when it's necessary. Routers like that can also use unique MAC 
addresses on ethernet ports to handle connections by visitors who are 
temporarily present.

The modem/router also maintains data for recently used domain names and can 
short circuit a request based on time-to-live information provided with a 
previous lookup. (It is a way to discover where your kids have been last night.)

Connecting to a local machine needs only its name. The modem/router handles the 
rest and we talk to each other using the same procedures we would use to talk 
over the internet.

It's also quite possible to set up an Apple machine so that it provides the 
same services. OS neXt can use Berkley's BIND package but I have even done it 
with an SE/30. The lady here has been pushing a tiny box from Apple that acts 
as a router using the WiFi channels. It seems to work well at our local, SMMUG, 
user group meetings.

Hosts files also work but they're not the same everywhere. I think of that as 
the way DEC did it in the 70's. It does allow me to connect to external sites 
with my own invented name as in ssh pair to log into my ISP.

RFC 1918 declares 192.168.x.x, 10.x.x.x, and 172.16.x.x foe use only in local 
domain name assignments. I am happy to see someone else paying attention to 
RFCs. They are requests for comments that are maintained by the internet 
engineering task force, tools.ietf.org/html/rfc1918.  It's worth a look. And 
look around for some others to see just how the internet works. You might also 
try the UNIX tool dig.  man dig in Terminal.app for more.

Another thing that routers do at home is to modify internet packets using 
different port numbers so that many machines in a local net can use only the 
outside IP address to access the net.. The router looks at returned packets to 
see the port number that was used for the request. It then knows which local 
machine is waiting for the reply.

At 16:00 -0500 4/30/13, Jerry wrote:
Doug,

I am not sure I am following you here on the on the RFC 1918 address space 
issue.  Unless a person has set up an internal DNS server resolving private 
address space, a person would either typically specify the private address 
directly, or would use a hosts file for internal usage.

Can you elaborate further please?



On 04/30/13 03:31 PM, Doug McNutt wrote:


Just to avoid confusion. In this context DNS is Domain Name Server
and  is very much associated with your router whenever you use the internet
or even access local machines via an IP address like 192.168.xxx.xxx


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Re: Web sites suddenly blocked

2013-04-29 Thread Lawrence David Eden
A great solution is to find the fastest DNS serves in your area. 
Download a free copy of Namebench.  It will find your best 
alternative.


Larry








It sounds like a DNS hijack.


Change you dns provider with the instructions here:

https://developers.google.com/speed/public-dns/docs/using

If you don't like google DNS servers, use the one provided by your ISP.


Eric



From: Michael McMurtrey skyking...@verizon.net
To: g3-5-list@googlegroups.com
Sent: Sunday, April 28, 2013 1:37 PM
Subject: Web sites suddenly blocked


I came home from a trip, turned on my computer, and found that I am 
now blocked from certain favorite web sites. I am taken to a page at 
http://www.blocked-website.com/www.blocked-website.com which 
tells me, for example, Sorry, but (site) is blocked on this network. 
This site was categorized in (category). Contact your network 
administrator. Underneath this message it says Powered by OpenDNS.


OpenDNS appears to be legitimate, offering parental controls, but 
there are no children in this household, and I do not use their 
services. There are only two computers in the house, my Mac and my 
wife's PC, both connected to the Internet via a router. Neither have 
parental controls activated.


I contacted my provider, Verizon, and they maintain that nothing has 
changed with them and that the problem is in my computer.


Computer is a dual 1.25 GHz MDD PowerPC G4 running OSX 10.5.8. 
Browser is Safari 5.0.6.


What goes on here?


Michael McMurtrey
Carrollton, TX




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Re: Web sites suddenly blocked

2013-04-29 Thread Jonas Ulrich
Open DNS runs through your router. I would just use the reset button on your 
router, and then go into the firmware and set new passwords and put all your 
settings back in place.

Sent from my iPod

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Re: Web sites suddenly blocked

2013-04-28 Thread Eric Hall
It sounds like a DNS hijack. 


Change you dns provider with the instructions here:

https://developers.google.com/speed/public-dns/docs/using

If you don't like google DNS servers, use the one provided by your ISP. 


Eric 




 From: Michael McMurtrey skyking...@verizon.net
To: g3-5-list@googlegroups.com 
Sent: Sunday, April 28, 2013 1:37 PM
Subject: Web sites suddenly blocked
 


I came home from a trip, turned on my computer, and found that I am now blocked 
from certain favorite web sites. I am taken to a page at 
www.blocked-website.com which tells me, for example, Sorry, but (site) is 
blocked on this network. This site was categorized in (category). Contact your 
network administrator. Underneath this message it says Powered by OpenDNS.

OpenDNS appears to be legitimate, offering parental controls, but there are no 
children in this household, and I do not use their services. There are only two 
computers in the house, my Mac and my wife's PC, both connected to the Internet 
via a router. Neither have parental controls activated.

I contacted my provider, Verizon, and they maintain that nothing has changed 
with them and that the problem is in my computer. 

Computer is a dual 1.25 GHz MDD PowerPC G4 running OSX 10.5.8. Browser is 
Safari 5.0.6.

What goes on here?

Michael McMurtrey
Carrollton, TX




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Re: Web sites suddenly blocked

2013-04-28 Thread johnhios

Michael McMurtrey wrote:
I came home from a trip, turned on my computer, and found that I am 
now blocked from certain favorite web sites. I am taken to a page at 
www.blocked-website.com http://www.blocked-website.com which tells 
me, for example, Sorry, but (site) is blocked on this network. This 
site was categorized in (category). Contact your network 
administrator. Underneath this message it says Powered by OpenDNS.


OpenDNS appears to be legitimate, offering parental controls, but 
there are no children in this household, and I do not use their 
services. There are only two computers in the house, my Mac and my 
wife's PC, both connected to the Internet via a router. Neither have 
parental controls activated.


I contacted my provider, Verizon, and they maintain that nothing has 
changed with them and that the problem is in my computer. 

Computer is a dual 1.25 GHz MDD PowerPC G4 running OSX 10.5.8. Browser 
is Safari 5.0.6.


What goes on here?


Michael McMurtrey
Carrollton, TX




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just a note on this -
times it has happened that some other one has spammed the the network 
lines --try to shut down you internet connection or  rest  the modem 
and your problem has gone away.

joho
AthensGr.

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Re: Web sites suddenly blocked

2013-04-28 Thread Kris Tilford
I think this is likely correct, DNS hijack, however you may need to also change 
these DNS settings within your router itself, it's possible the DNS was 
hijacked at the router level. You'll need to navigate into your router controls 
and find the router DNS settings and use the public Google addresses 8.8.8.8  
8.8.4.4 or perhaps OpenDNS setting, or your ISPs DNS routers (this would be the 
default state if you did not assign any DNS addresses and left them blank in 
both the router  computers).


On Apr 28, 2013, at 1:42 PM, Eric Hall wrote:

 It sounds like a DNS hijack. 
 
 Change you dns provider with the instructions here:
 
 https://developers.google.com/speed/public-dns/docs/using
 
 If you don't like google DNS servers, use the one provided by your ISP. 
 

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Re: Web sites suddenly blocked

2013-04-28 Thread Bruce Johnson

On Apr 28, 2013, at 11:37 AM, Michael McMurtrey wrote:

 I came home from a trip, turned on my computer, and found that I am now 
 blocked from certain favorite web sites. I am taken to a page at 
 www.blocked-website.com which tells me, for example, Sorry, but (site) is 
 blocked on this network. This site was categorized in (category). Contact 
 your network administrator. Underneath this message it says Powered by 
 OpenDNS.
 
 OpenDNS appears to be legitimate, offering parental controls, but there are 
 no children in this household, and I do not use their services. There are 
 only two computers in the house, my Mac and my wife's PC, both connected to 
 the Internet via a router. Neither have parental controls activated.

Is this affecting both computers? Then it's almost certain that the router is 
what's affected. There's a ton of home routers out there that are susceptible 
to a plug-n-play vulnerability that will allow spammers to hijack them.

https://community.rapid7.com/community/infosec/blog/2013/01/29/security-flaws-in-universal-plug-and-play-unplug-dont-play

Here's Cisco's advice: 
http://www.ciscopress.com/articles/article.asp?p=461084Turning off UPnP is 
the first thing. 

I'm at a loss as to how this would lead you to OpenDNS blocking the site (as it 
should, if you're using OpenDNS as your DNS provider), though, as the whole 
point of DNS hijacking is to lead you away from valid DNS services like OpenDNS.

But then, no one ever said these folks were competent...

-- 
Bruce Johnson

Wherever you go, there you are B. Banzai,  PhD

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Re: Web sites suddenly blocked

2013-04-28 Thread D. Fabel
If it isn't a hijack, perhaps your wife has changed your router settings...  ???
Doug


On Apr 28, 2013, at 11:42 AM, Eric Hall wrote:

 It sounds like a DNS hijack. 
 
 Change you dns provider with the instructions here:
 
 https://developers.google.com/speed/public-dns/docs/using
 
 If you don't like google DNS servers, use the one provided by your ISP. 
 
 Eric 
 
 From: Michael McMurtrey skyking...@verizon.net
 To: g3-5-list@googlegroups.com 
 Sent: Sunday, April 28, 2013 1:37 PM
 Subject: Web sites suddenly blocked
 
 I came home from a trip, turned on my computer, and found that I am now 
 blocked from certain favorite web sites. I am taken to a page at 
 www.blocked-website.com which tells me, for example, Sorry, but (site) is 
 blocked on this network. This site was categorized in (category). Contact 
 your network administrator. Underneath this message it says Powered by 
 OpenDNS.


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Re: Web sites suddenly blocked

2013-04-28 Thread kak
Or perhaps if you're connected to internet through a wi-fi, you might have 
accidentally linked onto a neighbor's connection that is using the openDNS 
blocker.

(I have been using it personally, and have found it to be helpful in limiting 
teenagers, at least a little bit).

KK


On Apr 28, 2013, at 8:58 PM, D. Fabel lists.dfa...@earthlink.net wrote:

 If it isn't a hijack, perhaps your wife has changed your router settings...  
 ???
 Doug
 
 
 On Apr 28, 2013, at 11:42 AM, Eric Hall wrote:
 
 It sounds like a DNS hijack. 
 
 Change you dns provider with the instructions here:
 
 https://developers.google.com/speed/public-dns/docs/using
 
 If you don't like google DNS servers, use the one provided by your ISP. 
 
 Eric 
 
 From: Michael McMurtrey skyking...@verizon.net
 To: g3-5-list@googlegroups.com 
 Sent: Sunday, April 28, 2013 1:37 PM
 Subject: Web sites suddenly blocked
 
 I came home from a trip, turned on my computer, and found that I am now 
 blocked from certain favorite web sites. I am taken to a page at 
 www.blocked-website.com which tells me, for example, Sorry, but (site) is 
 blocked on this network. This site was categorized in (category). Contact 
 your network administrator. Underneath this message it says Powered by 
 OpenDNS.
 
 
 
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 Macs.
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Re: Web sites suddenly blocked

2013-04-28 Thread Dan

At 4:11 PM -0700 04/28/2013, Bruce Johnson wrote:
I'm at a loss as to how this would lead you to OpenDNS blocking the 
site (as it should, if you're using OpenDNS as your DNS provider), 
though, as the whole point of DNS hijacking is to lead you away from 
valid DNS services like OpenDNS.


Yea.

Doesn't OpenDNS offer a blocking service?  In addition to their 
normal open DNS, I think they have a baby goat-safe DNS, plus a tier 
where you can set your own blocks.  That sounds more like what's 
happened to the OP.


The OP does not provide much in the way of specifics.

Did he use OpenDNS by setting in either his router or his client 
computer(s)?  (this was very common a few years ago, before Verizon 
got their act together and fikked their DNS set-ups).


Which Verizon service?  If it's FiOS then they provide a higher-end 
router that can sniff/block/redirect URLs.  So then who's got the 
admin password?  OP doesn't name the site being blocked, so perhaps 
he's been blocked intentionally?


Does he have one of those annoying malware, er a antivirus, packages 
installed, that can cork him if he even thinks of visiting a funky 
site?  (My housemate has this problem few months, on his peecee.  His 
credit cards get s lonely for the day or two he's corked!).


Exactly what web sites and browser extensions are involved?  etc.

- Dan.
--
- Psychoceramic Emeritus; South Jersey, USA, Earth.

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