How does dns forwarding work

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The services are accessed via Kubernetes ingresses, which act as gateways that allow access to cluster applications and internal services through service URLs.

The cluster's DNS server should be configured to use conditional forwarding, so that DNS queries that contain the domain name of the cluster, and only such queries, are forwarded to the platform for resolution. This document provides step-by-step instructions for configuring conditional DNS forwarding on Linux or Windows.

Open the BIND name-server configuration file named. Check and reload the configuration by running the following commands from a Linux command-line shell:. In the Server Manager window, select the Tools tab.

Then, select DNS from the tools list. Then, select Conditional Forwarders from the server browse tree. Select Action from the top menu toolbar, and then select the New Conditional Forwarder menu option.

In the IP addresses of the master servers field, add the IP addresses of your cluster's master data nodes. Check the Store this conditional forwarder in Active Directory Privacy policy Terms of use. Videos Blog. Show TOC. You are here: Docs V3. More Info. When setting up a network, just getting a good ISP is never enough, since, when in a network, there are several ways you can speed up the performance.

One of these ways, which is now almost a general practice, is to use a DNS forwarding server. DNS forwarding is the service that you should resort to if you need to speed up the DNS name resolution process. It is very useful in cases when a request for a domain name is sent by the user but the DNS server , responsible for converting the name into its corresponding IP address , can't locate the matching IP address in its cache and its zones of authority. When you enable a DNS Forwarding rule, be aware that:.

For the Firebox to resolve host names on local domains, you must create DNS forwarding rules for local domains that specify the local DNS servers. You can add conditional DNS forwarding rules. When you add a forwarding rule, the Firebox uses cached information to respond to a DNS query, or it forwards the query to a DNS server specified in the rule.

For each DNS forwarding rule, you specify these settings:. Add one or more domain names. There is no limit to the number of domain names that you can specify. More specific domain names take precedence. The order of domain names does not matter. Specify a DNS server. Queries for the domain name you added are sent to the DNS server you specify.

You can add up to four DNS servers for each domain name.