Take a look at the DNS cache and see how to view and clear the cache.
- One important component to DNS name resolution…is the DNS cache.…Now this is an area of short-term local memory…where a DNS client and or the DNS server will store…the results of any recent name resolution queries.…So in order to take a look at this…I want to go ahead and jump onto…one of my DNS servers member one.…Now a couple of videos ago I talked about recursive querying…when you go to look up a website out on the internet.…
Alright and I went ahead and pulled up a browser…and I'll actually do that here.…Pull up the browser and it goes to www.LinkedIn.com…And I went through the whole process…of how it got that answer and then displays this up…on the screen.…Let me go ahead and close this.…Because I want to explain that there was one piece…that I didn't talk about in that other video.…And that is before the answer is given to the client…to put the website up on the screen…the first thing the server does is puts the information…in its local cache.…
So that if another client comes in with the same request…it doesn't have to utilize the resources…
Author
Released
2/5/2019- What is Dynamic Host Configuration Protocol (DHCP)?
- Setting up DHCP
- Securing and troubleshooting DHCP
- Configuring a DHCP relay agent
- Deploying Domain Name System (DNS)
- Creating stub zones and reverse lookup zones
- Testing queries
- DNS security
Skill Level Beginner
Duration
Views
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Windows Server 2016: Implementing Group Policy
with Ed Liberman2h 31m Intermediate
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Introduction
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Course organization1m 40s
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1. Dynamic Host Configuration Protocol (DHCP) Overview
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What is DHCP?2m 14s
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Lease generation3m 29s
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Lease renewal3m 38s
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2. Setting Up DHCP
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Install the DHCP server role3m 54s
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Authorize a DHCP server3m 42s
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Create DHCP scopes5m 8s
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Configure DHCP options3m 33s
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Activate a scope3m 7s
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Configure DHCP clients6m 3s
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Configure DHCP reservations5m 13s
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3. Managing DHCP
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Reconcile DHCP scopes2m 36s
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Database statistics3m 28s
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Secure DHCP5m 39s
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Troubleshoot DHCP3m 55s
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4. DHCP Advanced Features
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Configure DHCP failover5m 9s
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Manage DHCP failover4m 2s
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DHCP in a routed environment2m 26s
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Configure a DHCP relay agent4m 22s
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Test relay agent3m 36s
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5. Deploying DNS (Domain Name System)
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DNS client configuration3m 59s
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6. DNS Zones
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Configure zone transfers4m 43s
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Create reverse lookup zones2m 40s
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7. DNS Resource Record Types
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Alias (CNAME) record3m 2s
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Mail exchanger (MX) record3m 28s
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8. Name Resoution
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DNS queries4m 10s
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Testing queries2m 12s
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DNS cache3m 19s
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Forwarding2m 31s
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Conditional forwarding3m 28s
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Caching only DNS servers3m 26s
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9. DNS Security
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DNS cache locking2m 32s
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DNS socket pool1m 18s
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Conclusion
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Next steps19s
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Video: DNS cache