What happens if I disable DNS recursion?
DNS recursion mean DNS will not query any other DNS server apart from its own cache or information available within its local DNS server. If you disable recursion in DNS, then your local DNS server might not resolve queries send to the external websites or the website it has no information in its server or cache.
Can the DNS server do recursive queries?
A recursive DNS lookup is where one DNS server communicates with several other DNS servers to hunt down an IP address and return it to the client. This is in contrast to an iterative DNS query, where the client communicates directly with each DNS server involved in the lookup.
Should I disable recursion?
Most work places do allow internet access, however, if you are in a very tightly-controlled network (in which case if you need extraordinary security you shouldn’t be connected to the internet anyway,) disabling recursion will prevent name resolution of names that your DNS server is not authoritative for.
Should I disable DNS?
RECOMMENDED FOR YOU In fact, I recommend that organizations disable the DNS cache service, which Microsoft has enabled by default. Client workstations that use DNS should never cache DNS information locally.
Which is better iterative or recursive DNS query?
An important thing to note is that, all DNS server’s must support iterative(non-recursive)query. In an iterative query, the name server, will not go and fetch the complete answer for your query, but will give back a referral to other DNS server’s, which might have the answer.
Is it possible to disable DNS recursion on both servers?
I have two Domain Controller, both are DNS server and i have set Forwarder for both ( as per below Print-screen ) but i have not disable recursion on both server ( please see below print-screen ) there is one recommendation to disable DNS recursion.
What should I do if my DNS server is not working?
Check for basic connectivity to the root servers. If root hints appear to be configured correctly, verify that the DNS server that’s used in a failed name resolution can ping the root servers by IP address. If the root servers do not respond to pinging by IP address, the IP addresses for the root servers might have changed.
What to do if your DNS server has a broken delegation?
If you determine that you have a broken delegation, fix it by adding or updating an “A” resource record in the parent zone by using a valid IP address for a correct DNS server for the delegated zone. Start the DNS console.
How can I tell if my DNS server is running another server?
If either the master or secondary server is running another DNS server implementation, check both servers to make sure that they support the same features. You can check the Windows server in the DNS console on the Advanced tab of the properties page for the server.