Alternate DNS servers under Vista SP1

G

Guest

I don't have a home network, but this is the newsgroup I found
that seems most related to my problem.

My ISP's DNS server network is somewhat unreliable; when
they make an incorrect type of change on their master DNS
server, it seems to crash all their regional DNS servers at the
same time, usually for several hours at a time. How can I tell
Vista SP1 to add some other DNS server not under their
control to handle situations like this?

Also I'm trying to send some email to an address for which
their DNS server, or perhaps the DNS cache, repeatedly
returns an incorrect IP address, making that email address
unreachable. How can I temporarily add a connection to a
different DNS server, since I've already found which DNS
server that address's domain uses, and how to look for DNS
servers that different branches of my ISP use? I've checked a
few spammer blacklists for that machine name already, without
finding any signs it should be blocked. I've also asked my
ISP to check whether they have any reason to block access
to that machine; no answer even after a few weeks.

As far as I can tell, my machine is set up to use my ADSL
modem to automatically choose the DNS servers the
machine uses.

C:\Users\Bobby>nslookup bellsouth.net
Server: launchmodem
Address: 192.168.1.254

Name: bellsouth.net
Address: 216.77.188.41


C:\Users\Bobby>nslookup ihs.ox.ac.uk
Server: launchmodem
Address: 192.168.1.254

Name: ihs.ox.ac.uk


C:\Users\Bobby>nslookup launchmodem
Server: launchmodem
Address: 192.168.1.254

Name: launchmodem.launchmodem.com
Address: 192.168.1.254

A line saying Non-authoritative answer: got lost when
I copied the above; I'm not sure where.

C:\Users\Bobby>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Bobby-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : launchmodem.com

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : launchmodem.com
Description . . . . . . . . . . . : NVIDIA nForce Networking Controller
Physical Address. . . . . . . . . : 00-1B-B9-7E-B2-A6
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . :
fe80::418e:f354:a2d2:99cd%8(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.97(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Friday, October 24, 2008 11:22:52 AM
Lease Expires . . . . . . . . . . : Sunday, October 26, 2008 11:22:53 AM
Default Gateway . . . . . . . . . : 192.168.1.254
DHCP Server . . . . . . . . . . . : 192.168.1.254
DNS Servers . . . . . . . . . . . : 192.168.1.254
192.168.1.254
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter Local Area Connection* 6:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 02-00-54-55-4E-01
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . :
2001:0:4137:9e50:1c3f:bd3:3f57:fe9e(Preferred)
Link-local IPv6 Address . . . . . : fe80::1c3f:bd3:3f57:fe9e%9(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter Local Area Connection* 9:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : launchmodem.com
Description . . . . . . . . . . . : isatap.launchmodem.com
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
 
S

Steve Winograd

I don't have a home network, but this is the newsgroup I found
that seems most related to my problem.

My ISP's DNS server network is somewhat unreliable; when
they make an incorrect type of change on their master DNS
server, it seems to crash all their regional DNS servers at the
same time, usually for several hours at a time. How can I tell
Vista SP1 to add some other DNS server not under their
control to handle situations like this?

Also I'm trying to send some email to an address for which
their DNS server, or perhaps the DNS cache, repeatedly
returns an incorrect IP address, making that email address
unreachable. [remainder snipped]
Click to expand...

I'd forget about your ISP's DNS server and manually configure your
Internet connection to use the www.opendns.com servers: 208.67.222.222
and 208.67.220.220.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com
 
G

Guest

Steve Winograd said:
I don't have a home network, but this is the newsgroup I found
that seems most related to my problem.

My ISP's DNS server network is somewhat unreliable; when
they make an incorrect type of change on their master DNS
server, it seems to crash all their regional DNS servers at the
same time, usually for several hours at a time. How can I tell
Vista SP1 to add some other DNS server not under their
control to handle situations like this?

Also I'm trying to send some email to an address for which
their DNS server, or perhaps the DNS cache, repeatedly
returns an incorrect IP address, making that email address
unreachable. [remainder snipped]
Click to expand...

I'd forget about your ISP's DNS server and manually configure your
Internet connection to use the www.opendns.com servers: 208.67.222.222
and 208.67.220.220.
Click to expand...
How do you manually configure the DNS servers under Vista SP1?
I haven't been able to find that in the help file.
 
S

Steve Winograd

I don't have a home network, but this is the newsgroup I found
that seems most related to my problem.

My ISP's DNS server network is somewhat unreliable; when
they make an incorrect type of change on their master DNS
server, it seems to crash all their regional DNS servers at the
same time, usually for several hours at a time. How can I tell
Vista SP1 to add some other DNS server not under their
control to handle situations like this?

Also I'm trying to send some email to an address for which
their DNS server, or perhaps the DNS cache, repeatedly
returns an incorrect IP address, making that email address
unreachable. [remainder snipped]
Click to expand...

I'd forget about your ISP's DNS server and manually configure your
Internet connection to use the www.opendns.com servers: 208.67.222.222
and 208.67.220.220.
Click to expand...

How do you manually configure the DNS servers under Vista SP1?
I haven't been able to find that in the help file.
Click to expand...

You're welcome.

To find the DNS server settings:

1. Click the Start button, type "ncpa.cpl" in the Start Search box,
and press Enter.

2. Right-click your Internet connection and click Properties.

3. Click "Internet Protocol Version 4 (TCP/IPv4)".

4. Click Properties.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com
 
G

Guest

Steve Winograd said:
I don't have a home network, but this is the newsgroup I found
that seems most related to my problem.

My ISP's DNS server network is somewhat unreliable; when
they make an incorrect type of change on their master DNS
server, it seems to crash all their regional DNS servers at the
same time, usually for several hours at a time. How can I tell
Vista SP1 to add some other DNS server not under their
control to handle situations like this?

Also I'm trying to send some email to an address for which
their DNS server, or perhaps the DNS cache, repeatedly
returns an incorrect IP address, making that email address
unreachable. [remainder snipped]

I'd forget about your ISP's DNS server and manually configure your
Internet connection to use the www.opendns.com servers: 208.67.222.222
and 208.67.220.220.
Click to expand...

How do you manually configure the DNS servers under Vista SP1?
I haven't been able to find that in the help file.
Click to expand...

You're welcome.

To find the DNS server settings:

1. Click the Start button, type "ncpa.cpl" in the Start Search box,
and press Enter.

2. Right-click your Internet connection and click Properties.

3. Click "Internet Protocol Version 4 (TCP/IPv4)".

4. Click Properties.
Click to expand...
That worked to give me an alternate set of DNS servers, so
I'll save it for the next time the bellsouth.net DNS servers
quit working. Thank you.

However, I've noticed two problems with that set so far:
1) It adds an unreasonable domain to the end of the names
of my local items with networking-type names, so when
I try to do a tracert to my ADSL modem (named
launchmodem, and I can't change this name) I reach a
site in New York City instead of stopping at my ADSL
modem. That sounds like enough of a problem that I'll
use that set of DNS servers only when the bellsouth.net
set aren't working.

2) it can't find the site ihs.ox.ac.uk, although the bellsouth.net
set can't either. No information available on where it is
blacklisted or why, if it is at all.
 

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