0
A local DNS server's purpose is to host a database and provide access to that database for those within a certain area. It may be within an office building or headquarters.
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
What do dns servers use to help resolve IP addresses to dns names?
Forward lookup zones
What is the purpose of caching in DNS?
When the web browser wants to load a web page, it needs to contact a DNS server first, which will translate the URL address into a machine readable format - the IP address. Even though the translation takes only a few hundred milliseconds each time a message is sent, these can add up over time, as the number of requests can easily reach hundreds or thousands of DNS queries. DNS servers can sometimes be unavailable and the responses to queries can be very slow. To speed up this process is to cache the information locally thereby eliminating the need for repetitive queries to the remote DNS server. This is done by telling PostCast Server to contact a local database on your computer, rather than the remote DNS server. This local connection can be performed much faster and does not depend on the response time of the remote DNS server across the Internet. PostCast Server contacts the remote DNS server once, and then caches (memorizes) the addresses returned from the query. So the next time you are requesting the same domain.com address, it instantly returns the answer, without having to contact your ISP's DNS server to ask it for the translation. The process is much faster, since it does not have to connect to any remote servers every time. Basically, the logic behind the DNS cache feature is to include both bad and good domains in the list and use the "Valid" column to mark them as valid. The domain is considered bad only if DNS server returns the "Unresolved" error, which means that the DNS entry for that domain does not exist.
How do I find out my primary DNS on a Windows-based computer?
What is the purpose of dnsmasq?
A dnsmaq is a lightweight and easy to configure the DNS forwarder and also the DHCP server. It is aimed to design and provide a DNS and also a DHCP to a small network.
Where the DNS cache is stored on local machine?
<windows>\system32\drivers\etc\hosts
Where does a DNS server look first to resolve a query?
Local DNS cache of client computer, then the hosts file on the local PC finally going to the assigned DNS servers the computer is pointing to
The root DNS servers know the location of all the DNS servers that contain the master listings for an entire?
top level
What is the DNS server in which changes are made for a particular zone and then propagated to other DNS servers?
The prefered DNS server for the site is the server which sends the dns zone updates to all the other servers in the site. The primary DNS zone is created on the server and it has the authority to send changes in zone to other servers
How do you know your Domain Name Servers?
In Windows, look at properties of Local Area Connection in Control Panel, then look at properties of TCP/IP. If you can't get there, go to a Command Prompt and type ipconfig /all and the DNS servers will be listed under Local Area Connection.If you are trying to set your DNS servers, use DHCP, or ask your network administrator for this information.
What responsibility does the DC locator functions perform on an AD client?
Querying DNS for the location of the local DCs and GC servers.
What is the purpose of a root server in DNS?
If a DNS server cannot find the answer to the DNS Query in its own database it will first query the forwarders (if there are any configured) and then ask the root server. root servers (by default) are the master DNS servers of the Internet. The are called A, B, C, ... These are the highest level of the DNS hierarchy. Ultimately, any DNS request that can't be solved at a lower level (through the use of a cache) is traced back to those 13 root servers. Them root server in general is . .com,.org etc but in your domain the first dc in the forest/domain is the one
To which type of server do client computers on the network send their DNS queries?
DNS Servers
Which type of server do client computers on the network send their DNS queries?
DNS servers
What kind of DNS server has no responsibility for giving the names of its clients to other DNS servers?
.
What do you need a static DNS for?
Using reliable DNS servers is crucial to online success, for a regular website owner the most important of them are the name servers which are responsible for the online solution and with a static DNS you can rely on it instead of a random DNS server.
What does Disable Recursion in DNS mean?
HiIn the Windows 2000/2003 DNS console (dnsmgmt.msc), under a server's Properties -> Forwarders tab is the setting Do not use recursion for this domain. On the Advanced tab you will find the confusingly similar option Disable recursion (also disables forwarders). Recursion refers to the action of a DNS server querying additional DNS servers (e.g. local ISP DNS or the root DNS servers) to resolve queries that it cannot resolve from its own database. So what is the difference between these settings? The DNS server will attempt to resolve the name locally, then will forward requests to any DNS servers specified as forwarders. If Do not use recursion for this domain is enabled, the DNS server will pass the query on to forwarders, but will not recursively query any other DNS servers (e.g. external DNS servers) if the forwarders cannot resolve the query. If Disable recursion (also disables forwarders) is set, the server will attempt to resolve a query from its own database only. It will not query any additional servers. If neither of these options is set, the server will attempt to resolve queries normally:... the local database is queried... if an entry is not found, the request is passed to any forwarders that are set... if no forwarders are set, the server will query servers on the Root Hints tab to resolve queries beginning at the root domains.Hope this is helpful rk
What is stub Zone?
Stub zone When a zone that this DNS server hosts is a stub zone, this DNS server is a source only for information about the authoritative name servers for this zone. The zone at this server must be obtained from another DNS server that hosts the zone. This DNS server must have network access to the remote DNS server to copy the authoritative name server information about the zone. You can use stub zones to: * Keep delegated zone information current. By updating a stub zone for one of its child zones regularly, the DNS server that hosts both the parent zone and the stub zone will maintain a current list of authoritative DNS servers for the child zone. * Improve name resolution. Stub zones enable a DNS server to perform recursion using the stub zone's list of name servers, without having to query the Internet or an internal root server for the DNS namespace. * Simplify DNS administration. By using stub zones throughout your DNS infrastructure, you can distribute a list of the authoritative DNS servers for a zone without using secondary zones. However, stub zones do not serve the same purpose as secondary zones, and they are not an alternative for enhancing redundancy and load sharing. There are two lists of DNS servers involved in the loading and maintenance of a stub zone: * The list of master servers from which the DNS server loads and updates a stub zone. A master server may be a primary or secondary DNS server for the zone. In both cases, it will have a complete list of the DNS servers for the zone. * The list of the authoritative DNS servers for a zone. This list is contained in the stub zone using name server (NS) resource records. When a DNS server loads a stub zone, such as abc.xyz.com, it queries the master servers, which can be in different locations, for the necessary resource records of the authoritative servers for the zone abc.xyz.com. The list of master servers may contain a single server or multiple servers, and it can be changed anytime.
