Caching DNS Server Configuration | Linux DNS Server | Part4
Caching DNS Server Configuration is demonstrated in this video. I've gone through every component of the Caching-Only DNS Server Configuration and Setup, including the setup requirements, design, and deployments.
DNS servers are divided into three categories: primary, secondary, and caching-only. In this video, we'll look at how to configure caching DNS servers. The default mode for the Linux DNS Server is caching DNS. The DNS Service on the System will operate as a caching DNS Server if we simply start it. When we don't require the DNS server to host any authoritative zones, we can set it up as Caching-Only DNS. We can set up a Caching DNS Server if we only need a DNS Server for name resolution. The caching DNS Server will receive any query from clients and will cache the result on the DNS cache, and it always replies from the cache. All DNS Servers reply from the cache by default, however caching DNS is exclusive for this reason. When the DNS cache expires, we must flush the cache to reflect the most recent DNS record modifications. Otherwise, the DNS cache will return obsolete values. Caching-Only DNS can be configured as a Forwarding DNS also, in which case it will accept client DNS queries and, rather than travelling to the internet for name resolution, will forward the queries to the Upstream DNS Server. However, the primary goal of caching will remain the same.
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Chapters:
00:00 Caching DNS Server Introduction and Design.
01:08 Caching DNS Server Configurations
07:50 DNS Cache Testing & Cache Flush
🔔 𝗩𝗶𝘀𝗶𝘁 𝗟𝗶𝗻𝘂𝘅 𝗗𝗡𝗦 𝗦𝗲𝗿𝘃𝗲𝗿 𝗖𝗼𝗻𝗳𝗶𝗴𝘂𝗿𝗮𝘁𝗶𝗼𝗻 𝗣𝗹𝗮𝘆𝗹𝗶𝘀𝘁: 👉 • Linux DNS Server
🔔 𝗟𝗶𝗻𝘂𝘅 𝗗𝗡𝗦 𝗦𝗲𝗿𝘃𝗲𝗿 𝗖𝗼𝗻𝗳𝗶𝗴𝘂𝗿𝗮𝘁𝗶𝗼𝗻𝘀
Install and Configure Linux DNS Server: 👉 • Install and Configure Linux DNS Serve...
Primary DNS Or Master DNS Server Configuration: 👉 • Primary DNS Or Master DNS Server Conf...
Secondary DNS Or Slave DNS Server Configuration: 👉 • Secondary DNS Or Slave DNS Server Con...
Caching DNS Server Configuration: 👉 • Caching DNS Server Configuration | Li...
DNS Forwarder Configuration with Caching DNS: 👉 • DNS Forwarder Configuration with Cach...
Forward Zone Configuration For DNS Forward Lookup: 👉 • DNS Forward Zone Configuration For DN...
Reverse DNS Configuration For DNS Reverse Lookup: 👉 • Reverse DNS Configuration For DNS Rev...
DNS Records A, PTR, CNAME, NS, MX, SOA, TXT: 👉 • DNS Records A, PTR, CNAME, NS, MX, SO...
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