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View Full Version : [kubuntu] DNS poissoning MyFamiliy.com (I tought no one can do this to linux)


Ajat
July 25th, 2009, 12:52 AM
Hi early this morning, while i was trying to open www.kubuntu.com, something strange.. my browser didn't view my desire page, instead of viewing a pages titled MyFamily.com

I try ubuntuforums.org (it works) , but www.coldplay.com also drives to MyFamily.com

some sites work, but many failed.

googling around, i found that it's DNS poisoning problem. a solution is doing cache flush..
unfortunately, i dont know how to cache flush in linux. I've tried to flush my iptables by typing sudo iptables --flush

but the problem persist.

This is really annoying.. why this MyFamily.com do this? :confused:

any suggestions?

kerry_s
July 25th, 2009, 01:11 AM
that would be an isp problem, if your using there dns through your router/modem. suggest using something like opendns.

https://www.opendns.com/start/device/ubuntu

Ajat
July 25th, 2009, 02:47 AM
i'm surfing with my mobile modem, when i plug my phone, the interfaces usb0 is automatically established.

network management doesnt give me any clue about how to edit usb0 connection.

please help.

is this Myfamily.com can be reported? I Hate that page.

aesis05401
July 25th, 2009, 03:02 AM
i'm surfing with my mobile modem, when i plug my phone, the interfaces usb0 is automatically established.

network management doesnt give me any clue about how to edit usb0 connection.

please help.

is this Myfamily.com can be reported? I Hate that page.

This is something you need to report to whoever runs the DNS server... probably the same company you pay for internet access.

Ajat
July 25th, 2009, 03:19 AM
I think it has nothing to do with my internet provider..
there is a security article about this issue..

since google tells me that there are a lot of people experience the same problem.

it's funny to see


$nslookup www.coldplay
Server: 124.195.15.98
Address: 124.195.15.98#53

Non-authoritative answer:
Name: www.coldplay.com
Address: 66.43.25.130
or
$ nslookup www.kubuntu.com
Server: 124.195.15.100
Address: 124.195.15.100#53

Non-authoritative answer:
Name: www.kubuntu.com
Address: 66.43.25.130
and continuing investigating by using $ whois 66.43.25.130

OrgName: Myfamily.com, Inc.
OrgID: MYFAMI-1
Address: 360 W. 4800 N.
City: Provo
StateProv: UT
PostalCode: 84604
Country: US

NetRange: 66.43.16.0 - 66.43.31.255
CIDR: 66.43.16.0/20
NetName: MYFAMILY
NetHandle: NET-66-43-16-0-1
Parent: NET-66-0-0-0-0
NetType: Direct Assignment
NameServer: NS1.MYFAMILY.NET
NameServer: NS2.MYFAMILY.NET
Comment:
Comment: �
RegDate: 2003-01-14
Updated: 2004-01-29

RTechHandle: DOMRE-ARIN
RTechName: Domain Registration
RTechPhone: +1-801-705-7000
RTechEmail: domreg@tgn.com

OrgTechHandle: DOMRE-ARIN
OrgTechName: Domain Registration
OrgTechPhone: +1-801-705-7000
OrgTechEmail: domreg@tgn.com
bah..

see references
http://ancestryinsider.blogspot.com/2008_01_01_archive.html

kerry_s
July 25th, 2009, 04:04 AM
what they describe in part 3 there can not happen to you, unless your running your browser as root, as a normal user you do not have access to internet configs & those settings are not kept in your home folder.

normally i would think you might have one of those bad firefox plugins, but the fact your getting it in terminal points to a problem else where.

so the only way you can get a bad dns address is if your isp gives it to you. so as i have suggested please try not using there dns, try a different dns source.
https://www.opendns.com/start/device/ubuntu

SlugSlug
July 25th, 2009, 04:14 AM
what they describe in part 3 there can not happen to you, unless your running your browser as root, as a normal user you do not have access to internet configs & those settings are not kept in your home folder.

normally i would think you might have one of those bad firefox plugins, but the fact your getting it in terminal points to a problem else where.

so the only way you can get a bad dns address is if your isp gives it to you. so as i have suggested please try not using there dns, try a different dns source.
https://www.opendns.com/start/device/ubuntu


+1 opendns

ericab
July 25th, 2009, 04:26 AM
opendns for life dawg

Ajat
July 25th, 2009, 05:22 AM
thanks for your share guys.

But as i said, i'm using a "hotplug" connection, which automatically create usb0 interfaces, i can't find this usb0 interfaces in /etc/network/interfaces.conf

should i just add the opendns nameserver in /etc/resolv.conf ?

please help.

thanks.

Edit: take a look for http://www.omnicron.com/~ford/dnspoison.html (an article by Michael Ditto from sun microsystem engineer.)

hmm even when i get my DNS work with opendns, i would be interested to resolve this.

SlugSlug
July 25th, 2009, 05:29 AM
thanks for your share guys.

But as i said, i'm using a "hotplug" connection, which automatically create usb0 interfaces, i can't find this usb0 interfaces in /etc/network/interfaces.conf

should i just add the opendns nameserver in /etc/resolv.conf ?

please help.

thanks.

Edit: take a look for http://www.omnicron.com/~ford/dnspoison.html (an article by Michael Ditto from sun microsystem engineer.)

hmm even when i get my DNS work with opendns, i would be interested to resolve this.

add these to the two files
/etc/dhcp3/dhclient
prepend domain-name-servers 208.67.222.222, 208.67.220.220;

and

/etc/resolv.conf
nameserver 208.67.222.222
nameserver 208.67.220.220

kerry_s
July 25th, 2009, 05:33 AM
add these to the two files
/etc/dhcp3/dhclient
prepend domain-name-servers 208.67.222.222, 208.67.220.220,

and

/etc/resolv.conf
nameserver 208.67.222.222
nameserver 208.67.220.220

you got a typo there "," should be ";":
prepend domain-name-servers 208.67.222.222, 208.67.220.220;