18.06.2014

Reverse lookup zone ip address

These are three types of zones in active directory 2008, which are forward lookup zones, reverse lookup zone and conditional forwarders. Primary zone is the read write copy of zone, this mean that if this zone answers the query then it is an authoritative answer. To understand stub zone suppose you have users in your network which are continuously accessing your business partner’s network, printer and other resources and this network is not manage by you. Creating primary DNS zone in active directory is straightforward, open DNS from Administrative Tool.
Reverse lookup zone allows the client to get the name of the corresponding IP address by querying, in reverse lookup zone we can create the PTR (Pointer) again any host. These two records are installed by default after DNS role is installed; forward and reverse lookup zone is configured before adding resources such as host records.
Start of authority (SOA) needs to be configured since its settings control the function of all information stored in forward and reverse lookup zone.
Name Server (NS) = Authoritative server and needs to be configured to maintain consistency of info.
Note if a zone is configured with multiple authoritative DNS server, then an NS record will need to be implemented for each server! When a DNS serverrole is installed on a network operating system, by default forward lookup zone is automatically created and the DNS server works as Caching Only server that caches the results of all the queries that it resolves. DNS servers also allow administrators to create reverse lookup zones that resolve hostnames of the computers to their corresponding IP addresses. Stub zones contain only NS Name Servers (DNS server) records of their authoritative DNS domains.
Irrespective of the type of zone that administrators configure while installing DNS servers, if the DNS server roles are installed on the computers that also work as Active Directory domain controllers, it is strongly recommended that the DNS zones should be integrated with the Active Directory databases.
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Accept the default locations for the log, Active Directory Database, and shared system volume. Check the radio button that has Install and configure DNS'at DNS Registration Diagnostics screen. Within the Forward Lookup Zone should be a zone called firstinitialfirst8lettersofyourlastname.local. Right click on the reverse lookup zone to add an Active Directory Integrated Primary Reverse Lookup Zone.
Verify that within your reverse lookup zone you have a pointer record along with two other records.
If they are not present, verify your IP address in the Preferred DNS setting is the IP address bound to your NIC. At this point you need to install the drivers for your network interface card and assign it the other IP address that is assigned(it is on the class website), Subnet Mask and the Preferred DNS should be set to the IP address of your Active Directory Domain Controller.
The Logon Script field in step 38 looks in the \scripts folder (above) for the file login.bat. Then right click on forward lookup zone and click on new zone, click next to start this wizard. In other word condition forwarder tells the DNS server that if you got the query for particular IP subnet then forwards this request to specific DNS server. This browser feature blocks JavaScript from running locally on your computer.This warning will not display once the menu is on-line. Forward lookup zone of a DNS server resolves IP addresses to their corresponding host names, is used in most network setups in production environments. Stub zones of a DNS domain are mostly configured in child domains, from where the DNS queries for the parent domain are to be resolved.
When this is done, technically the DNS zones are known as Active Directory integrated zones.Now that you've gotten free know-how on this topic, try to grow your skills even faster with online video training.
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Then it good to create a stub zone for these queries, which only contain the enough information to send your client to your partner’s DNS so that other DNS resolve your client queries. All DNS servers that will become authoritative need to be added, configured and listed in the NS. Both forward and reverse lookup zones can be configured to work as Primary, Secondary or Stub zones. Since stub zones contain only NS records that point to the authoritative DNS domain to which they belong, they are best suited for the environments in which zone transfers rely on slow WAN links, such as 56 Kbps dial-up connections. Then finally, put these skills to the test and make a name for yourself by offering these skills to others by becoming a freelancer. It also specifies primary and secondary zones added to SOA which are stored in DNS server even though zone is not being delegated.
Every zone type has its own specialty, and to get efficient performance, they must be installed and configured at specific locations in production environments. When the address of name server of the parent DNS domain changes, stub zones automatically update their databases with the updated NS record that points to the new name server.
Since secondary DNS zones are the read only copies of the primary DNS zone and do not allow DNS records to be created on them, no unauthorized person or hacker can create false DNS records or poison the DNS database.
This is the reason why secondary zones are mostly installed and configured to face the external networks, i.e. In production environments, servers that are configured to run secondary DNS zones are located in the Demilitarized Zones or DMZ.



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