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nslookup command is used
C:\>nslookup ?
Usage:
nslookup [-opt ...] # interactive mode using default server
nslookup [-opt ...] - server # interactive mode using 'server'
nslookup [-opt ...] host # just look up 'host' using default server
nslookup [-opt ...] host server # just look up 'host' using 'server'
What else can I help you with?
Which command is used to find the DNS server?
Open a command prompt window then type in ipconfig/all Then there should be your dns server.
When would a dns server contact a root server?
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.
Where does a dns server look when it can't resolve a query from its zone records or cache?
When a DNS server cannot resolve a query from its zone records or cache, it typically forwards the query to a higher-level DNS server, such as a root DNS server or a server authoritative for the domain in question. The root servers provide information about the authoritative servers for top-level domains (TLDs). The DNS server then recursively queries these TLD servers until it reaches the authoritative server for the specific domain, which can then provide the requested information. If the authoritative server is unreachable or does not have the record, the query will ultimately fail.
How does the dns server add a udp header to the contexts of a dns query?
anonymous systems
What type of query does the client send to the DNS server?
The client sends a DNS query, typically a recursive query, to the DNS server when it seeks to resolve a domain name into an IP address. In this query, the client requests that the DNS server either provide the requested address or continue querying other DNS servers on its behalf until the information is found. The client can also send iterative queries, where it asks for information and expects the server to provide the best answer it has, potentially directing the client to other DNS servers for further information.
What do the DNS servers do with the information learned from the iterative queries?
An iterative name query is one in which a DNS client allows the DNS server to return the best answer it can give based on its cache or zone data. If the queried DNS server does not have an exact match for the queried name, the best possible information it can return is a referral (that is, a pointer to a DNS server authoritative for a lower level of the domain namespace). The DNS client can then query the DNS server for which it obtained a referral. It continues this process until it locates a DNS server that is authoritative for the queried name, or until an error or time-out condition is met.This process is sometimes referred to as "walking the tree," and this type of query is typically initiated by a DNS server that attempts to resolve a recursive name query for a DNS client.
What command should you enter to view the host name and dns server address?
ipconfig / all
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 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
What can one do to resolve a dns?
One looking to resolve their DNS issues should enable reverse look-ups on their DNS server. Next, one should check for duplicate records on their DNS server. Finally, one should compare the records on their DNS server and make the necessary changes.
What is DNS doctoring?
DNS doctoring enables an internal host on a LAN to receive the Private ip of an internal server as an answer from a DNS query when using a DNS server that is outside the LAN, such as on the internet. A static NAT translation must also exist to translate the public IP to the private IP. Without DNS doctoring, the external DNS server will reply with the public IP address of the host on the internal LAN.
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
