Chapter 7 Device Advanced Settings
Vantage CNM User’s Guide
199
7.10 Cache
Use this screen to configure a device’s DNS caching. To open this screen, click a device, click
Device Operation
and then click
Device Configuration > Advanced > DNS
>
Cache
in the
navigation panel.
Figure 98
Device Operation > Device Configuration > Advanced > DNS > Cache
The following table describes the labels in this screen.
Apply
Click
Apply
to save your changes back to the device.
Cancel
Click
Cancel
to exit this screen without saving.
Table 87
Device Operation > Device Configuration > Advanced > DNS > Name Server
Record > Add/Edit (continued)
LABEL
DESCRIPTION
Table 88
Device Operation > Device Configuration > Advanced > DNS > Cache
LABEL
DESCRIPTION
Cache Setup
Cache Positive DNS
Resolutions
Select the check box to record the positive DNS resolutions in the cache.
Caching positive DNS resolutions helps speed up the device’s processing of
commonly queried domain names and reduces the amount of traffic that the
device sends out to the WAN.
Maximum TTL
Type the maximum time to live (TTL) (60 to 3600 seconds). This sets how long
the device is to allow a positive resolution entry to remain in the DNS cache
before discarding it.
Cache Negative
DNS Resolutions
Caching negative DNS resolutions helps speed up the device’s processing of
commonly queried domain names (for which DNS resolution has failed) and
reduces the amount of traffic that the device sends out to the WAN.
Negative Cache
Period
Type the time (60 to 3600 seconds) that the device is to allow a negative
resolution entry to remain in the DNS cache before discarding it.
Apply
Click
Apply
to save your changes back to the device.
Reset
Click
Reset
to begin configuring this screen afresh.
Summary of Contents for Centralized Network Management Vantage CNM
Page 2: ......
Page 24: ...Vantage CNM User s Guide 24...
Page 30: ...Vantage CNM User s Guide 30...
Page 33: ...33 PART I Introduction Introducing Vantage CNM 31 GUI Introduction 35...
Page 34: ...34...
Page 52: ...52...
Page 58: ...Chapter 4 Device General Settings Vantage CNM User s Guide 58...
Page 108: ...Chapter 5 Device Network Settings Vantage CNM User s Guide 108...
Page 184: ...Chapter 6 Device Security Settings Vantage CNM User s Guide 184...
Page 207: ...Chapter 7 Device Advanced Settings Vantage CNM User s Guide 207...
Page 208: ...Chapter 7 Device Advanced Settings Vantage CNM User s Guide 208...
Page 210: ...Chapter 8 Device Log Vantage CNM User s Guide 210...
Page 234: ...Chapter 9 Device Configuration Management Vantage CNM User s Guide 234...
Page 248: ...248...
Page 264: ...Chapter 14 VPN Monitor Vantage CNM User s Guide 264...
Page 265: ...265 PART IV Monitor Device Status Monitor 267 Device HA Status Monitor 269 Device Alarm 271...
Page 266: ...266...
Page 276: ...Chapter 17 Device Alarm Vantage CNM User s Guide 276...
Page 277: ...277 PART V Log Report Device Operation Report 279 CNM Logs 291 VRPT 293...
Page 278: ...278...
Page 296: ...Chapter 20 VRPT Vantage CNM User s Guide 296...
Page 298: ...298...
Page 312: ...Chapter 21 CNM System Setting Vantage CNM User s Guide 312...
Page 318: ...Chapter 24 Vantage CNM Software Upgrade Vantage CNM User s Guide 318...
Page 322: ...Chapter 26 About Vantage CNM Vantage CNM User s Guide 322...
Page 323: ...323 PART VII Account Management Group 325 Account 329...
Page 324: ...324...
Page 328: ...Chapter 27 Group Vantage CNM User s Guide 328...
Page 332: ...Chapter 28 Account Vantage CNM User s Guide 332...
Page 333: ...333 PART VIII Troubleshooting Troubleshooting 335...
Page 334: ...334...
Page 338: ...Chapter 29 Troubleshooting Vantage CNM User s Guide 338...
Page 340: ...340...
Page 378: ...Appendix E IP Address Assignment Conflicts Vantage CNM User s Guide 378...
Page 382: ...Appendix F Common Services Vantage CNM User s Guide 382...
Page 416: ...Appendix H Open Software Announcements Vantage CNM User s Guide 416...
Page 424: ...Appendix J Customer Support Vantage CNM User s Guide 424...
Page 428: ...Index Vantage CNM User s Guide 428...
Page 429: ...Index Vantage CNM User s Guide 429...
Page 430: ...Index Vantage CNM User s Guide 430...