How to Tune the Windows DNS Server 2012 R2 for Best Performance
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Transcript of How to Tune the Windows DNS Server 2012 R2 for Best Performance
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DNS performance-Test ModelMultiple Client Query Farms: Each client in these farms sends randomized queries (+ve and -ve) to theauth server. Each farm publishes its query sent/ query received counts
Authoritative server : Publishes its query sent/query received counts
Measurement server : Observes these counts and collects statistics.
5 zones, 100K A records per zone
Authoritative DNS
Server
Query Farm 1
Client 1 … Client n
Query Farm 2
Client 1 … Client N
Measurement
server
Processor(s): Intel(R) Xeon(R) CPU E5-2630 0 @ 2.30GHz
Maximum speed: 2.30 GHz
Sockets: 2
Cores: 12
Logical processors: 24
Virtualization: Enabled
L1 cache: 768 KB
L2 cache: 3.0 MB
L3 cache: 30.0 MB
Total Physical Memory: 80 GB
Network Card(s): Broadcom NetXtreme Gigabit Ethernet
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100 99.9987 98.993
92.332
72.03
0
20
40
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100
120
50000 75000 120000 200000 280000
Perc
enta
ge R
espo
nd
ed b
y W
inD
NS
QPS
Percentage Queries RespondedDNS performance
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DNSSEC performance
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DNSSEC signing performance
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Nodes/second signed Memory factor
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Tuning DNS Server for performanceFollowing slides are recommendations based on a server with following configuration.The setting may differ from hardware to hardware:
Processor(s):Intel(R) Xeon(R) CPU E5-2630 0 @ 2.30GHz (Dell PowerEdge R720)
Maximum speed : 2.30 GHz
Sockets : 2
Cores : 12
Logical processors : 12
Virtualization : Disabled
L1 cache : 768 KB
L2 cache : 3.0 MB
L3 cache : 30.0 MB
Total Physical Memory: 80 GB
Network Card(s): Broadcom NetXtreme Gigabit Ethernet
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Tuning DNS Server for performance
New-NetFirewallRule -DisplayName <String> -Direction Inbound -Action Allow -Protocol UDP -LocalPort 53 -LocalOnlyMapping $true -Enabled True
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Tuning DNS Server for performance
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Tuning DNS Server for performance
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Tuning DNS Server for performance
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Tuning DNS Server for performance
0001 = 1 ( CPU 1) 00010000 = 16 ( CPU 5)
0010 = 2 ( CPU 2) 00100000 = 32 (CPU 6)
0100 = 4 ( CPU 3 ) 01000000 = 64 (CPU 7)
1000 = 8 ( CPU 4 ) . . . . .
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Tuning DNS Server for performance
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Tuning DNS Server for performance