Is DNS record scavening turned on by default?
when setting up DNS on a windows 2008 server, is DNS scavenging turned on by default?....
thanks
sid
Hi,
You can refer the following article to auditing the DNS entry deleted reason:
Tracking DNS Record Deletion
http://blogs.technet.com/b/networking/archive/2011/08/17/tracking-dns-record-deletion.aspx
Hope this helps.
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I started using OSX Server on Mountain Lion a few days ago and it looks promising.
I do however measure my ignorance in DNS matters...
I defined two websites in addition to the the Default Server, so I have three names to deal with.
For argument's sake
- www.main.com is the default site
- www.sitea.com is the first site
- www.siteb.com is the second site
I define a virtual host for www.sitea.com and another for www.siteb.com
The resulting apache conf is what I would expect, I am pretty sure it is correct.
So I modified my DNS entries (they were A records) to point to my new OSX Server.
My result is:
- www.main.com shows the default site
- www.sitea.com shows the first site
- www.siteb.com shows...the default site
Any ideas?
CheersThanks MrHoffman!
My problem ended up being a name but not in the DNS!...In Apache.
Your information allowed me to rule out possibilities and zoom in to the culprit faster.
I just report here the conclusion hoping it can help someone else.
When I installed OSX Server last week, I had in mind to principally run siteb.
During the initial install, this is what I must have entered and then forgot about it.
Then I defined my virtual hosts sitea and siteb and realised my machine was called siteb and changed its name to main to avaid a name collision. At which time I remember OSX Server telling me that changing the name could have consequences...But it apparently went ok, and it did except for one little thing.
The consequence was this:
in the main configuration file /Library/Server/Web/Config/apache2/http_server_app.conf the ServerName directive had remained siteb (instead of main). I manually updated it with TextEdit (could do vi from bash, its the same) and replaced siteb with main.
There is a way to detect it.
In Server.app, there is a "logs" panel, which displays all sorts of logs for everything including the websites.
Each website's logs are presented as "access" and "error" logs. The information was there, but I could not see it because the viewing window in remarkably small for so much information in raw text...
web logs are actually written to only two files in /var/log/apache2 (error.log and access.log)
I openned two bash windows and run tail -f on error.log in one and tail -f access.log in the other.
When I started the web service, apache threw a warning stating from mod_ssl saying that the certificate did not match the serve name...I the certificate was what I expected, I checked http_server_app.conf and found the ServerName directive that was not changed when I renamed my server...
Easily fixed when its found, but it can take a while to find.
BTW, I was using A DNS records for and it works, but I find your method of using CNAME records documents the administrator's intent better than with A records; I started to do the same. (A records a useful though, they can run a domain across multiple machines)
Cheers mate! -
Static DNS record deleted automatically- Windows 2008 R2 SP1
Hi,
I have scoured the Interweb and tried all suggestions to no avail for this one. Here's the scenario:
My client has a Windows 2008 R2 SP1 (Windows 2003 domain/forest functional level) server which is a DC and DNS server. The problem is that a DNS record for an Exchange 2010 server is getting deleted every 10 or 40 minutes. This started occurring for no obvious
reason a few weeks ago. The impact is that users cannot connect to Exchange (caching does not seem to help with this, which is odd). I disabled scavenging, which did not resolve the issue. I enabled auditing and found a 4662 event revealing that the domain
administrator account was deleting the server A record (and pointer record). Why this is happening is what I am trying to investigate next: possible bug? The zone is configured as non secure- maybe making it securing it would help? But this does not explain
why the record is being deleted. There is no NIC teaming implemented, which I understand can cause issues.
As an interim measure I created a script employing dnscmd that recreates the record every 15 minutes, which works for the most part, but not always, which is why I added a deny permission on the record for the domain Administrators group, seems so far to
have prevented the record from being deleted.
Any advise on the cause of this and how to investigate why the record is being deleted will be much appreciated!Hi- thanks for that. However I have seen those links and already followed them: I turned off scavenging (default 7 day configuration) and the record still gets deleted (scavenging date is not due till a later data in any case). Also the record is static
so it would not get scavenged? The option to delete the record if stale is unchecked.
I already enabled auditing and identified event 4662, which identified that the domain administrator account that is deleting the record:
Log Name: Security
Source: Microsoft-Windows-Security-Auditing
Date: 8/01/2014 11:47:25 AM
Event ID: 4662
Task Category: Directory Service Access
Level: Information
Keywords: Audit Success
User: N/A
Computer: DC.domain.com.au
Description:
An operation was performed on an object.
Subject :
Security ID:
DOMAIN\administrator
Account Name:
administrator
Account Domain:
DOMAIN
Logon ID:
0x2e1b093
Object:
Object Server:
DS
Object Type:
dnsNode
Object Name:
DC=EXCHANGEHOST,DC=domain.com.au,CN=MicrosoftDNS,CN=System,DC=domain,DC=com,DC=au
Handle ID:
0x0
Operation:
Operation Type:
Object Access
Accesses:
Write Property
Access Mask:
0x20
Properties:
Write Property
{771727b1-31b8-4cdf-ae62-4fe39fadf89e}
{e0fa1e69-9b45-11d0-afdd-00c04fd930c9}
{d5eb2eb7-be4e-463b-a214-634a44d7392e}
{e0fa1e8c-9b45-11d0-afdd-00c04fd930c9}
Additional Information:
Parameter 1:
Parameter 2:
Please advise!
Thanks
-
DNS record ownership for DHCP clients
my configuration:
dhcp/dns/dc installed on same system - Windows 2008 R2 SP1 in domain environment.
all zones configured to secure updates only with aging and scavenging enabled
dhcp servers are member of DNSupdateproxy group.
dhcp are configured with standard domain user account (this user was made a member of dnsupdateproxy as well, DOES THAT MATTER?)
dhcp scopes are configured with default DNS setup (force DNS update by DHCP)
now...
all DNS records for endpoint devices on dhcp lease (windows7, mac os X, ubuntu) are owned by SYSTEM
in security tab for some DNS records i can see service account with write permission to record ( i believe this is desired state)
in other records service account has no permission but timestamps are still updated by computer account (hostname$ has write permission). these records have pencil icon on computers in dhcp lease table.
Problem with this (hostname$ has write permissions) is when user connect to network via VPN (obtains dhcp lease) it get's two records registered in DNS -> 1 record for ip distributed by dhcp server and 2nd record for his home private network.
Have anyone seen this before?
i've tried deleting DNS records / releasing ip on endpoint device (example win7). It would not register to DNS by DHCP. However if i do ipconfig /registerdns it will do it, but dhcp service account won't have permission no this record.Apparently it appears that DHCP may not be configured with credentials, DHCP DNS settings are not configured to force DHCP to register ALL requests, nor has the DHCP server itself have been added to the DnsUpdateProxy group. These are all prerequisites
for DHCP to own all records, otherwise you will see default behavior, which is:
By default, a Windows 2000 and newer statically configured machines will
register their A record (hostname) and PTR (reverse entry) into DNS.
If set to DHCP, a Windows 2000 or newer machine will request DHCP to allow
the machine itself to register its own A record, but DHCP will register its PTR
(reverse entry) record.
The entity that registers the record in DNS, owns the record.
In summary:
Configure DHCP Credentials. The credentials only need to be a plain-Jane, non-administrator, user account. Give it a really strong password.
Set DHCP properties, DNS tab, to update everything, whether the clients can or cannot.
Add the DHCP server(s) to the Active Directory, Built-In DnsUpdateProxy security group.
Make sure ALL other non-DHCP servers are NOT in the DnsUpdateProxy group. For example, some believe that the DNS servers or other DCs not running DHCP should be in it. They must be removed or it won't work.
On Windows 2008 R2 or newer, DISABLE Name Protection.
If DHCP is co-located on a Windows 2008 R2 or Windows 2012 DC, you can and must secure the DnsUpdateProxy group by running the following:
dnscmd /config /OpenAclOnProxyUpdates 0
Configure Scavenging one one DNS server. Set the NOREFRESH and REFRESH values combined to be equal or greater than the DHCP Lease length. What it scavenges will replicate to others anyway.
DHCP Service Configuration, Dynamic DNS Updates, Scavenging, Static Entries, Timestamps, DnsUpdateProxy Group, DHCP Credentials, prevent duplicate DNS records, DHCP has a "pen" icon, and more...
Published by Ace Fekay, MCT, MVP DS on Aug 20, 2009 at 10:36 AM 3758 2
http://msmvps.com/blogs/acefekay/archive/2009/08/20/dhcp-dynamic-dns-updates-scavenging-static-entries-amp-timestamps-and-the-dnsproxyupdate-group.aspx
Good summary:
How Dynamic DNS behaves with multiple DHCP servers on the same Domain?
http://social.technet.microsoft.com/Forums/en-US/winserverNIS/thread/e9d13327-ee75-4622-a3c7-459554319a27
DNS Record Ownership and the DnsUpdateProxy Group
http://technet.microsoft.com/en-us/library/dd334715(v=ws.10).aspx
DNS Record Ownership and the DnsUpdateProxy Group
"... to protect against unsecured records or to permit members of the DnsUpdateProxy group to register records in zones that allow only secured dynamic updates, you must create a dedicated (NON-ADMIN) user account and
configure DHCP servers to perform DNS dynamic updates with the credentials of this account (user name, password, and domain). Multiple DHCP servers can use the credentials of one dedicated user account."
http://technet.microsoft.com/en-us/library/dd334715(WS.10).aspx
DNS record ownership and the DnsUpdateProxy group
http://social.technet.microsoft.com/Forums/en-US/winserverNIS/thread/b17c798c-c4b2-4624-926c-4d2676e68279/
Ace Fekay
MVP, MCT, MCITP/EA, MCTS Windows 2008/R2 & Exchange 2007, Exchange 2010 EA, MCSE & MCSA 2003/2000, MCSA Messaging 2003
Microsoft Certified Trainer
Microsoft MVP - Directory Services
Technical Blogs & Videos: http://www.delawarecountycomputerconsulting.com/
This post is provided AS-IS with no warranties or guarantees and confers no rights. -
New Windows Server 2012 unable connect to Netlogon Service or update DNS records
Hi everybody, all of my Windows Servers 2012 decided to collapse after innocuous group policy update that was meant to make user passwords more secure.
The AD and DNS seem to be functioning "normally", I am able to add new Windows7 and Windows Server 2008 machines to the domain, I can see them in listed in the AD and DNS record are update correctly, however, as soon as I try to join Windows Server
2012 it breaks.
The event log is littered on the new server with:
The system failed to register host (A or AAAA) resource records (RRs) for network adapter
with settings:
Adapter Name : {DB7F73CE-E011-4F3C-BEBC-2CE7A871DF51}
Host Name : CHEETAH
Primary Domain Suffix : somedomain.com
DNS server list :
192.168.0.5
Sent update to server : <?>
IP Address(es) :
192.168.0.15
The reason the system could not register these RRs was because the update request it sent to the DNS server timed out. The most likely cause of this is that the DNS server authoritative for the name it was attempting to register or update is not running
at this time.
You can manually retry DNS registration of the network adapter and its settings by typing 'ipconfig /registerdns' at the command prompt. If problems still persist, contact your DNS server or network systems administrator.
and
Name resolution for the name _ldap._tcp.Default-First-Site-Name._sites.dc._msdcs.somedomain.com. timed out after none of the configured DNS servers responded.
When I try to ping the primary DC (WS2003) it fails, the Secondary DC (WS2012) responds.
The >nltest /sc_query:somedomain.com on Windows Servers 2012 returns:
Flags: 0
Trusted DC Name
Trusted DC Connection Status Status = 1311 0x51f ERROR_NO_LOGON_SERVERS
The command completed successfully
yet it works on all other machines.
I tried removing 2012 servers from the domain and rejoining - without success. The cookie crumbled when I added two new installations of Windows Server 2012 & 2008 and 2008 worked fine but 2012 showed same symptoms.
There is one peculiar thing that I had noticed on all Windows 2012 machines, it constantly showing "Workplace Connection - Connecting" in the networks pane on the right side of the screen, which I can't say i ever noticed before.
Unfortunately, the secondary DC is a multihoming server with Direct Access role - I am not sure if this may play some part but our existing configuration worked for a year now without any problems. Issue appeared when I changed the password complexity rule,
which boggles the mind. I wonder if there has been some other changes in GPO that did not propagate from years ago and finally comeback to break things.
Any suggestions would be really appreciated.
wminHello Ace, i wish you a Happy New Year! I hope your break was enjoyable and filled with cheer.
In the end I had to bite the bullet and reinstall all troublesome servers. Your recommendations from above removed some serious problems with the DA and DNS resolution.
I was able to attach new server to the domain without any problems and begin painful process of rebuild.
I have promoted TIGER to full DC controller role, but having some issues with replication. Although running >repadmid /showrepl gives positive
feedback, the sysvol folder on the secondary DC is empty.
Also there is a couple of warnings in the event log:
Event ID 4012
Log Name: DNS Server
Source: DNS-Server-Service
The DNS server is waiting for Active Directory Domain Services (AD DS) to signal that the initial synchronization of the directory has been completed. The DNS server service cannot start until the initial
synchronization is complete because critical DNS data might not yet be replicated onto this domain controller. If events in the AD DS event log indicate that there is a problem with DNS name resolution, consider adding the IP address of another DNS server
for this domain to the DNS server list in the Internet Protocol properties of this computer. This event will be logged every two minutes until AD DS has signaled that the initial synchronization has successfully completed.
- which has not repeated since 3rd of Jan.
These events occur on the primary DC every few minutes:
Event ID 1030
Source: Userenv
Log Name: NT AUTHORITY\SYSTEM
Windows cannot query for the list of Group Policy objects. Check the event log for possible messages previously logged by the policy engine that describes the reason for this.
For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.
Event ID 1058
Source: Userenv
Log Name: NT AUTHORITY\SYSTEM
Windows cannot access the file gpt.ini for GPO CN={31B2F340-016D-11D2-945F-00C04FB984F9},CN=Policies,CN=System,DC=somedomain,DC=com. The file must be present at the location <\\somedomain.com\sysvol\somedomain.com\Policies\{31B2F340-016D-11D2-945F-00C04FB984F9}\gpt.ini>.
(The network name cannot be found. ). Group Policy processing aborted.
For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.
Should sysvol folder be shared on the secondary DC? Another interesting thing to point out is that
\\somedomain.com\sysvol\somedomain.com\Policies\ can be access
from all other machines except the DC1.
Cheers!
kind regards,
wmin -
DNS record ownership and the DnsUpdateProxy group
I have a 2 x 2003 domain controller that have DNS and DHCP Services installed
I was thinking of configuring DHCP to use a service account to update DNS records.
If I set this, do the DHCP Servers need to be members of the DNSUpdateProxy security group for the service account to work?>I have to agree with John here. I don't think it's reasonable to just say 'ms told us so'. We need a
technical before and answer is given. I have multiple DHCP servers and I use a security account on them to register the records and never use the
DNSUpdateProxy Group and I have no problems. My thinking is this:
Assume we are using Integrated Secure Zones in AD:
Scenario 1:
Windows DHCP server i registering records on behalf of clients
Not a member of DNSUpdateProxy Group and not using dedicated account
Records will have owner as dhcpserver$ and only that account can update
This is a problem if that DHCP server fails
Also, non Windows DHCP server with no AD account cannot update
Scenario 2:
Windows DHCP server i registering records on behalf of clients
Member of DNSUpdateProxy Group and not using dedicated account
Records will have owner as SYSTEM and authenticated users can updated meaning any user or client on that domain
No problem if that DHCP server fails as any other authorized DHCP server can update
Non Windows DHCP servers can updated if they have a domain machine account
Scenario 3:
Windows DHCP server i registering records on behalf of clients
Using a dedicated account
Records added with owner same as this dedicated account
Another DHCP server that also uses this same account can updated the records
A non windows DHCP server that can use this account can also update the records
Now, can someone from MS please clarify the technical reason they say that in Scenario 3, you must add the DHCP servers to the
DNSUpdateProxy group ?
http://technet.microsoft.com/en-us/library/cc780538(v=ws.10).aspx
I guess this link didn't help?
DNS Record Ownership and the DnsUpdateProxy Group
"... to protect against unsecured records or to permit members of the DnsUpdateProxy group to register records in zones that allow only secured dynamic updates, you must create a dedicated user account and configure DHCP servers to perform DNS dynamic updates
with the credentials of this account (user name, password, and domain). Multiple DHCP servers can use the credentials of one dedicated user account."
http://technet.microsoft.com/en-us/library/dd334715(WS.10).aspx
Just to add:
Why is the DnsUpdateProxy group needed in conjunction with credentials?
The technical reason is twofold:
DnsUpdateProxy:
Objects created by members of the DNSUpdateProxy group have no security; therefore, any authenticated user can take ownership of the objects.
DHCP Credentials:
Forces ownership to the account used in the credentials, which the DnsUpdateProxy group allowed to take ownership other than the registering client.
Otherwise, the default process is outlined below, and this applies to non-Microsoft operating systems, too, but please note that non-Microsoft operating systems can't use Kerberos to authenticate to dynbamically update into a Secure Only zone, however
you can configure Windows DHCP to do that for you.
1. By default, Windows 2000 and newer statically configured machines will
register their own A record (hostname) and PTR (reverse entry) into DNS.
2. If set to DHCP, a Windows 2000, 2003 or XP machine, will request DHCP to allow
the machine itself to register its own A (forward entry) record, but DHCP will register its PTR
(reverse entry) record.
3. If Windows 2008/Vista, or newer, the DHCP server always registers and updates client information in DNS.
Note: "This is a modified configuration supported for DHCP servers
running Windows Server 2008 and DHCP clients. In this mode,
the DHCP server always performs updates of the client's FQDN,
leased IP address information, and both its host (A) and
pointer (PTR) resource records, regardless of whether the
client has requested to perform its own updates."
Quoted from, and more info on this, see:
http://technet.microsoft.com/en-us/library/dd145315(v=WS.10).aspx
4. The entity that registers the record in DNS, owns the record.
Note "With secure dynamic update, only the computers and users you specify
in an ACL can create or modify dnsNode objects within the zone.
By default, the ACL gives Create permission to all members of the
Authenticated User group, the group of all authenticated computers
and users in an Active Directory forest. This means that any
authenticated user or computer can create a new object in the zone.
Also by default, the creator owns the new object and is given full control of it."
Quoted from, and more info on this:
http://technet.microsoft.com/en-us/library/cc961412.aspx
More on this discussed in:
http://social.technet.microsoft.com/Forums/windowsserver/en-US/6f5b82cf-48df-495e-b628-6b1a9a0876ba/regular-domain-user-uses-rsat-to-create-dns-records?forum=winserverNIS
If that doesn't help, I highly suggest to contact Microsoft Support to get a definitive response. If you do, I would be highly curious what they say if it's any different than what I found out from the product group (mentioned earlier in this thread).
And of course, if you can update what you find out, it will surely benefit others reading this thread that have the same question!
Thank you!
Ace Fekay
MVP, MCT, MCSE 2012, MCITP EA & MCTS Windows 2008/R2, Exchange 2013, 2010 EA & 2007, MCSE & MCSA 2003/2000, MCSA Messaging 2003
Microsoft Certified Trainer
Microsoft MVP - Directory Services
Complete List of Technical Blogs: http://www.delawarecountycomputerconsulting.com/technicalblogs.php
This posting is provided AS-IS with no warranties or guarantees and confers no rights. -
How many DNS record need to create in Internal & external DNS server for exchange?
Hi friends,
I recently installed Exchange Server 2010 in my organization for testing purpose and I've register a pubic ip too for exchange server on godaddy.com. How many
internal & External DNS records reqired to configure on external & Internal dns server so my all feature like Auto-discover, Activ -sync,& webmail start working perfectly.
It's my first time configuring exchange for a organization.
Thanks & Regards,
Pradeep ChauguleHi,
Just as what ManU Philip said, you need to create
Autodiscovery.domaincom and mail.domain.com for external dns server.
Generally, you configure your Exchange Servers as DNS clients of your internal DNS server.
Refer from:
http://technet.microsoft.com/en-us/library/aa996996(v=exchg.65).aspx
Best Regards. -
I was trying to make a new screen recording using quicktimeplay, but when I watched the video after recording it all I could hear was me talking while the video was showing on the screen. How do I turn off that recording and turn the right one on? thanks
Hi j2399123,
It sounds like your screen recording is doing what it was designed to do, capture what is happening on your screen, with optional voice over with the microphone.
Screen recording is for recording what you see on the screen, it is not a "video capture" option, like for capturing a movie with sound that is playing on your screen.
For the QuickTime recording options, check out "Recording with QuickTime Player" in
Mac Basics: QuickTime Player creates, plays, edits, and shares video and audio files
http://support.apple.com/kb/ht4024
And for screen recording specifically, there's
QuickTime Player 10.x: Record your computer’s screen
http://support.apple.com/kb/PH5882
Thank you for thinking of Apple Support Communities for your support needs.
Nubz -
How do I create a DNS record on my Mac Server?
How do I create a DNS record on my Mac Server?
The following is info that I found in another post that I have been trying to follow.
MrHoffman New England
Re: Configure DNS - OS X Server Next Steps
Feb 13, 2011 6:36 AM (in response to Jimbooooooo)
You're setting up internal DNS services, you referenced your ISP DNS servers and you should not have, and now those servers have no translations for your hosts. This is a common misconfiguration.
See [configuring DNS on Mac OS X Server|http://labs.hoffmanlabs.com/node/1436] for how to set up your internal DNS server.
And if there are any references to your ISP DNS servers here (within your client settings, within your server settings, your Airport settings, etc), then you're usually going to have DNS and connectivity problems. You're running a server now, so you'll be running your own services, and (particularly because of NAT here) referencing only your own DNS server(s).
You may be setting up external DNS (if and when you need that), but that should happen after you set up your internal DNS. The above article has a link to setting up external DNS, when you get around to that, if/when you need in-bound connections into your LAN. -
How to create a DNS record for a domain itself (without a hostname)
Hi,
Normally, you can create a DNS record that points to the zone itself, e.g.:
@ 10800 IN A 196.197.200.201
How do you accomplish that on a Mac OSX Lion Server? The DNS requires you to enter a hostname and it does not accept "@" as the hostname as it normally appears in the zone file.
(manually modifying the host file does not work - I tried that ;-) )
Any help is appreciated
Thanks
Bjoern DirchsenCreate either a blank record with a ., or a FQDN such as 'domain.com.' (note the trailing dot). Either of these should map to the domain name.
-
How do I setup a DNS record to point to an internal IP with a port.
I am trying to setup a DNS entry on my AD server to point to a web sever that I have setup to run certain services. All of these services run through IIS on port 82 for example service A is internally 192.168.0.1:82/info/login and service B is 192.168.0.1:82/tech/login.
I am trying to give these services easy to use names like for example info.mycompany.com and tech.mycompany.com so that it is easy to access for the employees but I am obviously missing something because I have had no luck setting up anything. My
company is still using SBS 2003 as it's AD and DNS server so I am working with flint and bear skin here.
I am also trying to do the same thing for the external access to these services but where as I have the internal address for these services I have the external static IP. When using the external IP with the port from outside the network everything
works fine but I would like for it to to have a simple name identical to the internal names but accessible from the outside. I frankly feel out of my depth on both of these issues and I would really appreciate any help that can be lent. Thank you.You cant set a dns record (that would be used by a browser) to point to an ip and port, srv records can but that requires the application to look them up.
To have info.mycompany.com point to 192.168.0.1:82/info/login you
would add a cname or A record to the dns pointing to that IP, then in IIS you would assign that dns name to the host headers. Also in IIS you would need to use
URL rewrite plugin with this you would setup a redirect for that host header {HTTP_HOST} to point to that link. -
Dnscmd's OpenAcl option doesn't seem to change DNS record permissions
I'm creating DNS A records with dnscmd /recordadd, and I can't see a difference in the A record's permissions whether I use the OpenAcl option or not. Is this normal?
I was expecting with OpenAcl to see permissions similar to Write permissions for Authenticated Users or something. Instead I can't see any difference in the permissions at all and the permissions for non-admins are Read permissions for Everyone.
The DCs run win 2008 R2 SP1. The syntax I've been using for dnscmd.exe is:
dnscmd /recordadd mydomain.com mycomputer /aging /openacl A 192.168.0.123
I want to migrate from Infoblox DNS to AD-integrated. So I'm expecting to export to csv from Infoblox, reformat the csv file a bit and use dnscmd.exe to read the reformatted csv and create DNS records in AD. I'll also enable the option on the Windows computers
to register their DNS records.
I think that the records that dnscmd.exe creates in AD won't have permissions that allow the Windows computers to overwrite them unless I use the OpenAcl option. But OpenAcl doesn't seem to make any difference to the permissions. Very confusing! Thanks for
any help.Thanks Kumar and sorry for replying so late. What you said is correct and what solved my problem was running Windows Update. I was testing using W2K8 R2 with SP1 but no updates after that. After I ran Windows Update, then creating a DNS record using dnsmd.exe
with the /OpenAcl argument did indeed set the permissions on the DNS record so that Authenticated Users could write to it. -
"Show all" turned on by default
Is there any possible way to make this "show all" option turned on by default.
I am talking about this new feature in Lion that makes the files (that are arranged by kind/date/etc..) stacked in rows. It is very annoying because this feature is almost not practicable when you are working with a mouse and everytime you have to click on this label "Show all (Number of the files)" to see the files in the row..
Thank youWow! I never saw that feature. Even after you posted the screenshot, I had to hunt to find it. I don't use icon view and I use "arrange by name". It seems it's only present in icon view, in some views. In the view menu if you choose "Arrange by name" or Arrange by none" it is not.
You can file feedback here. -
DNS record is not dynamically created in DNS Zone, when joining to DNS domain
hi
in my test lab i have deployed two virtual machines (both are windows server 2008 R2 enterprise).
on vm1 i have installed just DNS role (without Active directory) and created a primary non-ADintegrated zone.
on this DNS zone, i have enabled dynamic update set to
non-secure & secure .
now in my vm2 (as a DNS client) , i set the ip address of this DNS server as preferred DNS server and then in system properties, on the primary DNS suffix field, i entered the name of my DNS domain (mydomain.lab)& rebooted VM2, but the a record of this
client (vm2) is not registered (created ) in mydomain.lab zone.
i respect the record be created like the situations which we join a client to AD domainHi John ,
When registering DNS record ,client will send a SOA query to find the primary server of the zone .Then send register message to the server .
We can use nslookup to find the problem :
Open Command Prompt
type nslookup
type set type=soa
type zone name
1. If there is positive response ,check the name of
primary name server and the IP address of the server .
Its name should be vm1.mydomain.lab .If not ,edit the SOA record in the zone .
If no IP address ,edit NS record in the zone .
2. If there is no response ,check the SOA record in the zone .
We can manually delete and recreate the records to ensure there are right SOA and NS records .
Here is the guide for using nslookup :
Nslookup :
https://technet.microsoft.com/en-us/library/cc940085.aspx
Best Regards,
Leo
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact [email protected]
Hi Leo, thanks for reply.
i did all steps you mentioned but still no result.
i put an screenshot of my desktop here , everything is shown here: -
HTTPS, DNS and dynamically updating DNS records
Hello to you all, if you are able to help with a DNS problem that I'm having then please accept my thanks and appreciation in advance.
First some background information, I recently moved my server from my studio to my house where a new purpose built studio will soon be erected. At my old studio any requests for myurl.com came in via the IP (whether that be http, https, ftp etc) from the domain registrar and the router would send the request to the relevant port number whether that be 80 for http or 443 for https etc and all was well as this location had a fixed IP address. Unfortunately at my new location whilst I have a much faster connection I do not have a fixed IP. To get around this I have the following set up (not ideal for a business I know but perfectly OK for home hosting); I set up two psuedo nameservers at no-ip.com (ns1myurl.com and ns2myurl.com) which tracks the changes in my IP address and updates its records accordingly, my registrar then sends any requests to these 'nameservers' and no-ip then forwards it on to my server. So far so good.
The problem arises once the requests get to my server, whilst I have DNS set up, I can only recieve requests from a straight request to the server ie myurl.com will display the site without any problem, but if I then put a www in front of that or try to access the https part of my site (which is set up as a seperate site on the same server) then the server throws an error. I have tried to put an alias (CNAME) into the zone but it does not want to resolve the request. I have searched around but to no avail, I am totally new to DNS so am currently on a steep learning curve and fumbling around in the dark.
The first thing that I need to get working is the request to be resolved correctly and then (and this is where the real fun starts!) is to dynamically update the IP in the DNS records as the IP changes. I will probably have to get help in on this as I understand that this requires BIND of which I know nothing about, first though I'd like to get the pages to be served up correctly. Advice, hints, tips or links to tutorials all greatly appreciated. Full set up listed below.
Many thanks, David.
Xserve PPC G5 running 10.5.8 unlimited set up as standalone OD master
Xraid
APC UPS
CradlePoint MBR1200 Gateway router which acts as the DHCP
http://myurl.com and https://myurl.com set up as 2 seperate sites and located on the Xraid
Current DNS setup:
Primary Zone name: myurl.com with nameservers ns1myurl.no-ip.info and ns2myurl.no-ip.info and allow zone transfers in checked
Then
Name
Type
Value
myurl.com
Primary Zone
ns1myurl.no-ip.info
Machine
12.34.56.78 (external IP)
ns2myurl.no-ip.info
Machine
12.34.56.78 (external IP)
myurl.com.
Machine
12.34.56.78 (external IP)
www.myurl.com.
Alias
myurl.com.
With the reverse zone looking thus with allow zone transfers being checked
Name
Type
Value
56.34.12.in-addr.arpa.
Reverse Zone
12.34.56.78
Reverse mapping
myurl.com.Thanks for the reply Camelot, that part though I had already figured out. I now have this working, all I did was change the external IP to the internal one of the server with resolves with the .local machine name and all is working just fine (for now!). As long as I have primary zones set for each site and any alias or services set up on them then everything works well.. The real test will be when my ISP changes the IP, whilst my tests have proved successful the proof will be when they update the address.
Thanks anyway. David.
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