I also have to constantly restart DNS

J

John

I have been reading some post of people having to
constantly restart DNS to get it to resolve. I am having
the same problem, but could not determine if the posters
every solved their problem.

I'm running W2K SP4, with a internal DNS server for AD.
My DNS has forwards set for all external IPs.

Thanks for any help you can give.

Here is the info others have posted.

DNS Server info
------------
Windows 2000 IP Configuration

Host Name . . . . . . . . . . . . : tardusdc
Primary DNS Suffix . . . . . . . : TARDUS.local
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : TARDUS.local

Ethernet adapter Intel Pro 1000 MT Gigabit Ethernet
Adapter - onboard:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R)
PRO/1000 MT Network Connect
ion
Physical Address. . . . . . . . . : 00-C0-9F-1E-
53-41
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.0.0.45
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 10.0.0.100
DNS Servers . . . . . . . . . . . : 10.0.0.45


Query result:
Server info:
ptr = 00075B00
server name = tardusdc.TARDUS.local
version = C2000005
DS container = c
Configuration:
dwLogLevel = 01004000
dwDebugLevel = 00000000
dwRpcProtocol = FFFFFFFF
dwNameCheckFlag = 00000002
cAddressAnswerLimit = 0
dwRecursionRetry = 3
dwRecursionTimeout = 15
dwDsPollingInterval = 300
Configuration Flags:
fBootMethod = 3
fAdminConfigured = 1
fAllowUpdate = 1
fDsAvailable = 1
fAutoReverseZones = 1
fAutoCacheUpdate = 0
fSlave = 0
fNoRecursion = 0
fRoundRobin = 1
fLocalNetPriority = 1
fStrictFileParsing = 0
fLooseWildcarding = 0
fBindSecondaries = 1
fWriteAuthorityNs = 0
Aging Configuration:
ScavengingInterval = 0
DefaultAgingState = 1
DefaultRefreshInterval = 168
DefaultNoRefreshInterval = 168
ServerAddresses:
Addr Count = 1
Addr[0] => 10.0.0.45
ListenAddresses:
Addr Count = 1
Addr[0] => 10.0.0.45
Forwarders:
Addr Count = 2
Addr[0] => 208.57.0.11
Addr[1] => 208.57.0.10
forward timeout = 5
slave = 0
Command completed successfully.

Client Info
-----------
Windows IP Configuration

Host Name . . . . . . . . . . . . : D7BC8221
Primary Dns Suffix . . . . . . . : TARDUS.local
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : TARDUS.local

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media
disconnected
Description . . . . . . . . . . . : 3Com 3C920
Integrated Fast Ethernet
Controller (3C905C-TX Compatible)
Physical Address. . . . . . . . . : 00-08-74-3E-
F4-33

Ethernet adapter Local Area Connection 2:

Connection-specific DNS Suffix . : TARDUS
Description . . . . . . . . . . . : 3Com 3C920
Integrated Fast Ethernet
Controller (3C905C-TX Compatible) #2
Physical Address. . . . . . . . . : 00-B0-D0-0E-
DE-4A
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 10.0.0.101
Subnet Mask . . . . . . . . . . . : 255.0.0.0
Default Gateway . . . . . . . . . : 10.0.0.100
DHCP Server . . . . . . . . . . . : 10.0.0.45
DNS Servers . . . . . . . . . . . : 10.0.0.45
Lease Obtained. . . . . . . . . . : Thursday,
January 29, 2004 9:11:48 A
M
Lease Expires . . . . . . . . . . : Friday,
February 06, 2004 9:11:48 AM
 
K

Kevin D. Goodknecht [MVP]

In John <[email protected]> posted a question
Then Kevin replied below:
: I have been reading some post of people having to
: constantly restart DNS to get it to resolve. I am having
: the same problem, but could not determine if the posters
: every solved their problem.
:
: I'm running W2K SP4, with a internal DNS server for AD.
: My DNS has forwards set for all external IPs.
:
: Thanks for any help you can give.
:
: Here is the info others have posted.
:
: DNS Server info
: ------------
: Windows 2000 IP Configuration
:
: Host Name . . . . . . . . . . . . : tardusdc
: Primary DNS Suffix . . . . . . . : TARDUS.local
: Node Type . . . . . . . . . . . . : Hybrid
: IP Routing Enabled. . . . . . . . : No
: WINS Proxy Enabled. . . . . . . . : No
: DNS Suffix Search List. . . . . . : TARDUS.local
:
: Ethernet adapter Intel Pro 1000 MT Gigabit Ethernet
: Adapter - onboard:
:
: Connection-specific DNS Suffix . :
: Description . . . . . . . . . . . : Intel(R)
: PRO/1000 MT Network Connect
: ion
: Physical Address. . . . . . . . . : 00-C0-9F-1E-
: 53-41
: DHCP Enabled. . . . . . . . . . . : No
: IP Address. . . . . . . . . . . . : 10.0.0.45
: Subnet Mask . . . . . . . . . . . : 255.255.255.0
: Default Gateway . . . . . . . . . : 10.0.0.100
: DNS Servers . . . . . . . . . . . : 10.0.0.45
:
:
: Query result:
: Server info:
: ptr = 00075B00
: server name = tardusdc.TARDUS.local
: version = C2000005
: DS container = c
: Configuration:
: dwLogLevel = 01004000
: dwDebugLevel = 00000000
: dwRpcProtocol = FFFFFFFF
: dwNameCheckFlag = 00000002
: cAddressAnswerLimit = 0
: dwRecursionRetry = 3
: dwRecursionTimeout = 15
: dwDsPollingInterval = 300
: Configuration Flags:
: fBootMethod = 3
: fAdminConfigured = 1
: fAllowUpdate = 1
: fDsAvailable = 1
: fAutoReverseZones = 1
: fAutoCacheUpdate = 0
: fSlave = 0
: fNoRecursion = 0
: fRoundRobin = 1
: fLocalNetPriority = 1
: fStrictFileParsing = 0
: fLooseWildcarding = 0
: fBindSecondaries = 1
: fWriteAuthorityNs = 0
: Aging Configuration:
: ScavengingInterval = 0
: DefaultAgingState = 1
: DefaultRefreshInterval = 168
: DefaultNoRefreshInterval = 168
: ServerAddresses:
: Addr Count = 1
: Addr[0] => 10.0.0.45
: ListenAddresses:
: Addr Count = 1
: Addr[0] => 10.0.0.45
: Forwarders:
: Addr Count = 2
: Addr[0] => 208.57.0.11
: Addr[1] => 208.57.0.10
: forward timeout = 5
: slave = 0
: Command completed successfully.
:
: Client Info
: -----------
: Windows IP Configuration
:
: Host Name . . . . . . . . . . . . : D7BC8221
: Primary Dns Suffix . . . . . . . : TARDUS.local
: Node Type . . . . . . . . . . . . : Hybrid
: IP Routing Enabled. . . . . . . . : No
: WINS Proxy Enabled. . . . . . . . : No
: DNS Suffix Search List. . . . . . : TARDUS.local
:
: Ethernet adapter Local Area Connection:
:
: Media State . . . . . . . . . . . : Media
: disconnected
: Description . . . . . . . . . . . : 3Com 3C920
: Integrated Fast Ethernet
: Controller (3C905C-TX Compatible)
: Physical Address. . . . . . . . . : 00-08-74-3E-
: F4-33
:
: Ethernet adapter Local Area Connection 2:
:
: Connection-specific DNS Suffix . : TARDUS<==How many machines
have this suffix in the Connection specific suffix?
This will certainly cause DNS to fail if you have numerous machines trying
to register in a zone for this name. Win2kSP4 will not register in single
label names, If there are any machines pre SP4 DNS will forward these
registration requests to the root servers.
Remove these suffixes.
 
A

Ace Fekay [MVP]

In
John said:
I have been reading some post of people having to
constantly restart DNS to get it to resolve. I am having
the same problem, but could not determine if the posters
every solved their problem.

I'm running W2K SP4, with a internal DNS server for AD.
My DNS has forwards set for all external IPs.

Thanks for any help you can give.

Here is the info others have posted.

DNS Server info
------------
Windows 2000 IP Configuration

Host Name . . . . . . . . . . . . : tardusdc
Primary DNS Suffix . . . . . . . : TARDUS.local
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : TARDUS.local

Ethernet adapter Intel Pro 1000 MT Gigabit Ethernet
Adapter - onboard:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R)
PRO/1000 MT Network Connect
ion
Physical Address. . . . . . . . . : 00-C0-9F-1E-
53-41
DHCP Enabled. . . . . . . . . . . : No
IP Address. . . . . . . . . . . . : 10.0.0.45
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 10.0.0.100
DNS Servers . . . . . . . . . . . : 10.0.0.45


Query result:
Server info:
ptr = 00075B00
server name = tardusdc.TARDUS.local
version = C2000005
DS container = c
Configuration:
dwLogLevel = 01004000
dwDebugLevel = 00000000
dwRpcProtocol = FFFFFFFF
dwNameCheckFlag = 00000002
cAddressAnswerLimit = 0
dwRecursionRetry = 3
dwRecursionTimeout = 15
dwDsPollingInterval = 300
Configuration Flags:
fBootMethod = 3
fAdminConfigured = 1
fAllowUpdate = 1
fDsAvailable = 1
fAutoReverseZones = 1
fAutoCacheUpdate = 0
fSlave = 0
fNoRecursion = 0
fRoundRobin = 1
fLocalNetPriority = 1
fStrictFileParsing = 0
fLooseWildcarding = 0
fBindSecondaries = 1
fWriteAuthorityNs = 0
Aging Configuration:
ScavengingInterval = 0
DefaultAgingState = 1
DefaultRefreshInterval = 168
DefaultNoRefreshInterval = 168
ServerAddresses:
Addr Count = 1
Addr[0] => 10.0.0.45
ListenAddresses:
Addr Count = 1
Addr[0] => 10.0.0.45
Forwarders:
Addr Count = 2
Addr[0] => 208.57.0.11
Addr[1] => 208.57.0.10
forward timeout = 5
slave = 0
Command completed successfully.

Client Info
-----------
Windows IP Configuration

Host Name . . . . . . . . . . . . : D7BC8221
Primary Dns Suffix . . . . . . . : TARDUS.local
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : TARDUS.local

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media
disconnected
Description . . . . . . . . . . . : 3Com 3C920
Integrated Fast Ethernet
Controller (3C905C-TX Compatible)
Physical Address. . . . . . . . . : 00-08-74-3E-
F4-33

Ethernet adapter Local Area Connection 2:

Connection-specific DNS Suffix . : TARDUS
Description . . . . . . . . . . . : 3Com 3C920
Integrated Fast Ethernet
Controller (3C905C-TX Compatible) #2
Physical Address. . . . . . . . . : 00-B0-D0-0E-
DE-4A
Dhcp Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
IP Address. . . . . . . . . . . . : 10.0.0.101
Subnet Mask . . . . . . . . . . . : 255.0.0.0
Default Gateway . . . . . . . . . : 10.0.0.100
DHCP Server . . . . . . . . . . . : 10.0.0.45
DNS Servers . . . . . . . . . . . : 10.0.0.45
Lease Obtained. . . . . . . . . . : Thursday,
January 29, 2004 9:11:48 A
M
Lease Expires . . . . . . . . . . : Friday,
February 06, 2004 9:11:48 AM
Click to expand...


In addition to Kevin's response, how many forwarders do you have?
Maybe one of them does not allow forwarding.

Here's something I just posted today for someone else:

=================================
<snip> ... (The
ISP assured me their servers were fine, and I had no trouble pinging them.)
As before, DNSLint showed no response for TCP 53 nor UDP 53 - from either
forwarders nor from our ISP's name servers. But after a quick tweak to the
settings on our main (original) DNS (removed a bogus extraneous DNS server I
had added at the end of the list for this very purpose), suddenly both DNS
forwarders were able to resolve names. Very strange.
-MS

Maybe the bogus forwarder was causing the problem. The way the forwarders
work is similar to the DNS client resolver service when there are multiples
in the list, if the first one won't answer, then it removes it from
consideration from the eligible resolvers list, then goes to the next in the
list. If that doesn't answer, it goes on down the list till the bottom one.
It will not start over again unless you restart the DNS service.

Keep in mind some DNS servers have the RA (recursion available) bit turned
off which means it will not answer forwarded queries. Some ISPs do that.
-Ace
===============================


--
Regards,
Ace

Please direct all replies to the newsgroup so all can benefit.
This posting is provided "AS IS" with no warranties.

Ace Fekay, MCSE 2000, MCSE+I, MCSA, MCT, MVP
Microsoft Windows MVP - Active Directory
 
J

J T

On Sun, 1 Feb 2004 13:11:00 -0500, "Ace Fekay [MVP]"

Keep in mind some DNS servers have the RA (recursion available) bit turned
off which means it will not answer forwarded queries. Some ISPs do that.
-Ace
Click to expand...

Is there an easy way to determine if a particular DNS server has the
RA bit turned off?

Thx,
J T
 
A

Ace Fekay [MVP]

In
J T said:
Nevermind, I used nslookup with set debug and it showed it.
Click to expand...

That's one of the many tools. DIG is another one. William Stacey created a
Windows version called NetDIG. You can search back the past week or so for
his post to read up on the conversations taking place about it.

You can get it at:
www.mvptools.com

:)

--
Regards,
Ace

Please direct all replies to the newsgroup so all can benefit.
This posting is provided "AS IS" with no warranties.

Ace Fekay, MCSE 2000, MCSE+I, MCSA, MCT, MVP
Microsoft Windows MVP - Active Directory
 

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