Dahua NVR21-4KS3 Series User Manual

User's Manual
XVII
5.12.3.3 Creating Hot Spare Disk
............................................................................................................................ 360
5.12.4 Disk Group
.................................................................................................................................................................. 361
5.12.5 Disk Quota
.................................................................................................................................................................. 362
5.12.6 Disk Check
.................................................................................................................................................................. 363
5.12.6.1 Manual Check
................................................................................................................................................. 363
5.12.6.2 Detection Report
.......................................................................................................................................... 364
5.12.6.3 Disk Health Monitoring
............................................................................................................................. 366
5.12.7 Record Estimate
....................................................................................................................................................... 367
5.12.7.1 Calculating Recording Time
.................................................................................................................... 369
5.12.7.2 Calculating HDD Capacity for Storage
.............................................................................................. 369
5.12.8 FTP
.................................................................................................................................................................................. 370
5.12.9 iSCSI
............................................................................................................................................................................... 372
5.13 Account
................................................................................................................................................................................... 373
5.13.1 Group
............................................................................................................................................................................ 373
5.13.2 User
................................................................................................................................................................................ 375
5.13.2.1 Adding User
.................................................................................................................................................... 375
5.13.2.2 Changing Password
.................................................................................................................................... 377
5.13.3 Resetting Password
................................................................................................................................................ 378
5.13.3.1 Enabling Password Reset
......................................................................................................................... 378
5.13.3.2 Resetting Password on Local Page
...................................................................................................... 378
5.13.4 ONVIF User
................................................................................................................................................................. 383
5.14 Security
................................................................................................................................................................................... 384
5.14.1 Security Status
.......................................................................................................................................................... 384
5.14.2 System Service
.......................................................................................................................................................... 386
5.14.2.1 Basic Services
................................................................................................................................................. 386
5.14.2.2 802.1x
................................................................................................................................................................. 388
5.14.2.3 HTTPS
................................................................................................................................................................. 389
5.14.3 Attack Defense
......................................................................................................................................................... 390
5.14.3.1 Firewall
.............................................................................................................................................................. 390
5.14.3.2 Account Lockout
........................................................................................................................................... 391
5.14.3.3 Anti-DoS Attack
............................................................................................................................................. 391
5.14.3.4 Sync Time-Allowlist
..................................................................................................................................... 392
5.14.4 CA Certificate
............................................................................................................................................................ 394
5.14.4.1 Device Certificate
......................................................................................................................................... 394
5.14.4.2 Trusted CA Certificate
................................................................................................................................ 396
5.14.5 Audio/Video Encryption
...................................................................................................................................... 397
5.14.6 Security Warning
..................................................................................................................................................... 399

Dahua NVR21-4KS3 Series Specifications

General

Brand	Dahua
Model	NVR21-4KS3 Series
Category	Network Hardware
Language	English