As a training purpose for school I would like to install an Active Directory with an external DNS.
Serveur A : WS2k16 - Role: DNS
Serveur B : WS2k16 - Role: ADS
Is it possible to do it this way?
Thanks in advance for your help
Hosting DNS somewhere other than a domain controller (DC) is a valid configuration - one that is not uncommon in large enterprise environments. I often use ISC BIND to provide DNS for our Active Directory environment, and I've occasionally used stand-alone Windows DNS servers to host the DNS service. You lose some of the "magic" that Microsoft has added to their AD/DNS integration (e.g. AD-integrated DNS has hostnames replicated to all domain controllers for redundancy), but both DNS and AD function properly.
Provided the DC can made dynamic updates in the appropriate zones (e.g. _msdcs.domain.ccTLD), all of the host records AD needs get set up for you when you're using an external DNS server.
Even if the zones are not set up to allow the DC to make dynamic updates, the DC has a file in %systemroot%\system32\config\netlogon.dns which contains the records that need to be manually created. Clients won't be able to use the domain until the DNS records are manually created, you've got the potential for something to change on the DC and require a manual update, and IIRC there are event log entries on the DC every reboot complaining about the failure to auto-register records. The configuration is not ideal, but it does work.
Using netlogon file solved the problem, many thanks.
I can now register new computers on the ADS.
Anyway the ne computer are not inserted in the DNS entries, any clue how to solve it?
Related
The company I work for is considering some changes to our DNS. We host an internal linux BIND9 DNS for primary and secondary authoritative DNS. We are thinking of changing either to hosting our public DNS externally, or keeping the primary on-site and move the secondary to a service like Google. I know it doesn't really make sense to keep our public DNS on-site or splitting it up, but the business owners would like to consider all possible options. I have looked through the documentation on-line and have contacted Google directly, but none of the sources I have checked will tell me if Google will allow us to use their DNS service to replicate a primary DNS server housed on-site and act as a secondary DNS for our domains. Does anyone here know if this is possible, and if it is what specifics they require to make it work. Any assistance that can be offered is appreciated.
Having a name server be a secondary authoritative name server for a domain of yours requires some cooperation from the owner of that server, so the only people who can tell you for sure if Google offers that service are Google themselves.
i have bought a domain(adspace.lk) and hosting from the same service provider (lankahost.net). but now my domain has expired and my hosting account is still available with all my files.
now i have bought another domain (.com) at name.com .i want to connect my new domain name.com to the existing hosting account.
Is there any way to do it.
sort of, yes. Assuming that the machine you're hostin your files on has an ip address set aside for your exclusive use - that is, not "shared" hosting - you can simply create an A record with the new new, and that ip address. You must also change your webserver config - if you're using any web related stuff - such that the webserver can associate your web site files with the new name. Usually, a web host can have multiple names at the same time, so you could simply add a new name to the existing configuration.
It's hard to answer without knowing the details of your domain and hosting settings, but I'll try to give a generic but hopefully useful answer.
You should first get the ip(s) of your hosting. Then point the new domain to that ip(s) using the dns panel provided by the registrar. If you use your own dns (unlikely), set the ip there.
After this, you should configure some rules on your hosting. It's likely that you have to set some sort of virtualhost settings. In particular, you should associate the new domain name to the hosting: probably the hosting service provides you a control panel for this task.
It will be done easily from your domain control panel, just update your dns settings for your new domain name.com. Update your nameservers or A record to point the hosting account. So that it will be linked with your existing hosting account files.
I have two servers that provide a service to clients.
The client devices access the server through a DNS name. example.com
Now we generally use server1 (primary) but if server one becomes inaccessible, I want the DNS to change its resolving name to server 2 (secondary server)
How can I go about doing this, Is there a service that dyndns provides?
The only way I know to do it is to log into the DNS server and manually change the addresses that the dns resolves 2.
It sounds like you're looking to create an automated failover in the event of an outage. While this is a service that Dyn provides as an added service in the DynECT Managed DNS service (hit up sales#dyn.com for more info on that), you can also use the Dyn Updater API to push an IP update up to your Standard DNS account as well. It would be a matter of using a 3rd party monitoring solution to trigger the update in your code using their API, then using the Dyn Updater API to switch the IP.
http://dyn.com/support/developers/api/
Whether you want to spend the money on upgrading to DynECT Managed DNS or keep using your Standard DNS account, we can help you either way.
Good luck, and if you have any other questions, please do not hesitate to ask.
CL
We build a set of virtual appliances used throughout the company. The networking on the VM is set to NAT to prevent external DNS records from being created, unfortunately at least once a month someone switches it to bridged so other people can connect.
The problem with this is they all have the same hostname, as soon as the external DNS record is created everyone is routed to this new address causing issues until we track down the culprit and change it back to NAT or change the hostname.
Is there a method in a 2008 R2 AD environment to blacklist a hostname and prevent a DNS record from being created? DNS is configured so a record can be created by anyone with a network device which makes it messy. Adding an A record pointing to 127.0.0.1 won't work as people work with the VM from outside it with a client.
This is a multi-domain environment and the root domain has DNS restricted, if there's a way to force the VM to request a DNS record in that space that could work.
Edit: To clarify, the DNS record is created via DHCP
Create static host records for those required, then set the permissions to them to deny writes. That should prevent them from being updated.
Ive bought some domains from a hosting service and i want to point them to my other server. I did so usually by adding a DNS zone of type CNAME to list of DNS es which is set in my domain administration panel. but unfortunately I do not have access to add a CNAME, I can only change my name servers. I have even tried to point the name servers to my own domain name server, but this did not work so. for example I have the name servers ns1.online4iran.com and ns2.online4iran.com. but the domain still does not point to my server. is there a way to handle this situation. shall I start a spicific service on my server to handle this thing?
or should I preform specific configurations on my own domain configuration page?
thanks,
I did notice that some domain sellers do this, not sure why the monopoly. Sometimes, the changes don't reflect immediately. Wait for sometime & if still they don't reflect then do this. Check in the DNS Settings of your domain control panel if you have an option of 'Child Nameservers'. If yes, then you can run DNS service on your server locally & then make the necessary DNS changes on the server itself. Is your server Linux or Windows? Does it have a control panel installed?