Backup Dahua 8-Channel 4K NVR (NVR4208) to Cloudflare R2
8-Port PoE NVR disaster offsite backup directly into S3-compatible cloud storage. Follow our step-by-step setup guide below to replicate NVR channel footage directly to Cloudflare R2 via FTP/S with Rilavek as the pipe — securing your footage offsite against on-prem hardware theft or disk failure.
Your Dahua NVR4208-8P-4KS2 replicates channel footage offsite in real time directly to Cloudflare R2. Even if the physical NVR unit or local hard drives are stolen, damaged, or seized, your video archive remains safe in the cloud.
Retain multi-channel Dahua NVR4208-8P-4KS2 recordings in Cloudflare R2 beyond local drive capacity. Apply automated bucket lifecycle rules to roll over or archive clips after 30, 90, or 365 days.
Rilavek ingests native FTP/S streams from your Dahua NVR4208-8P-4KS2 NVR and writes them directly to Cloudflare R2 via multipart S3 PUTs with zero intermediate server caching.
How to Backup Dahua 8-Channel 4K NVR (NVR4208) to Cloudflare R2
Follow these 6 steps to provision your object storage, configure Rilavek’s Data Store, Sender, and Ingestion Pipe, enter your NVR firmware settings, and establish automated S3 retention rules.
Set Up Your 
Cloudflare R2 Bucket & Generate API Keys
Configure your target bucket and API credentials inside Cloudflare R2 so Rilavek can replicate multi-channel NVR recordings directly into your storage.
Cloudflare R2 provides an included monthly free tier of 10 GB storage, 1,000,000 Class A operations (uploads), 10,000,000 Class B operations (reads), and $0 egress bandwidth fees. Ensure you have completed the initial R2 subscription setup in your Cloudflare dashboard under Storage & databases > R2 before generating tokens.
Open R2 and Create Your Surveillance Bucket
In the Cloudflare Dashboard , navigate to Storage & databases > R2 > Overview. Click the blue Create bucket button and specify a name, such as cctv-dahua-recordings.
Leave location set to Automatic for the lowest-latency edge ingestion worldwide. If your organization requires strict data residency, select a specific Jurisdiction (European Union eu, United States us, or FedRAMP fedramp). Note that jurisdictional buckets require jurisdiction-specific S3 endpoints.
Copy Your 32-Character Cloudflare Account ID
On the right sidebar of the R2 Overview page under the Account Details section, locate and copy your 32-character hexadecimal Account ID. This is required to assemble your unique S3 API endpoint.
Create an Account API Token with Scoped Permissions
Under Account Details on the R2 overview page, select Manage next to API Tokens, then click Create API Token:
- Token Type: Choose Create Account API token (recommended for bridge infrastructure so credentials remain valid independently of individual user accounts; requires Super Administrator role).
- Permissions: Select Object Read & Write. This grants S3 API upload, download, and listing capabilities without exposing administrative privileges (like deleting buckets or altering account configs).
- Bucket Scoping: Select Apply to specific buckets only and pick your created bucket (
cctv-dahua-recordings). - TTL / Expiration: Leave blank for permanent 24/7 NVR recording, or specify an expiration according to your organization's security rotation schedule.
Click Create Account API token to generate your credentials.
Copy Your Access Key ID and Secret Access Key
Record your Access Key ID (token ID) and Secret Access Key securely for Step 2.
Add Your Data Store in Rilavek
In your Rilavek dashboard, navigate to Data Stores > New Data Store, select your provider, and enter your S3 credentials. Rilavek verifies the connection with an automated write-probe before saving.
Add New Data Store
Create an NVR Sender in Rilavek
Go to Senders in the Rilavek sidebar and click New Sender. A Sender represents the hardware identity of your Dahua 8-Channel 4K NVR (NVR4208) and generates a dedicated device-level password.
Create New Sender
Must be at least 6 characters, lowercase, start with a letter/underscore, and contain only letters, numbers, hyphens, or underscores.
Secure credentials will be automatically generated for this sender.
Sender Credentials
Create & Configure Your Ingestion Pipe in Rilavek
Go to Pipes in the sidebar and click Create Pipe. Configure the 4 core sections of your pipeline: General (Pipe ID), Inputs (FTP), Access Control (Sender permission), and Destinations (Data Store).
1General Settings (Pipe ID)
Every pipeline in Rilavek is assigned an immutable, globally unique Pipe ID (e.g. p_cctv9x). This ID acts as an isolated ingestion channel that segregates audit logs, real-time transfer metrics, and storage routing. It also forms the second half of your scoped NVR FTP login username (username@p_cctv9x).
Pipe ID
Use this ID to identify this pipe in logs. Combine it with the sender username for complete authentication details.
2Inputs (FTP / FTPS Ingress)
The Inputs configuration defines how NVR recordings enter Rilavek. Enabling the FTP Ingress input provides a persistent, high-availability ingestion server (ftp.rilavek.com) compatible with active and passive FTP modes, explicit TLS negotiation, and standard NVR multi-channel video push routines.
Inputs
Enable inputs to receive data.
FTP Ingress
Endpoint enabled. Connect using your Sender credentials.
Example: nvr_nvr42088p4ks2@p_cctv9x
Use the password configured for the specific Sender.
3Access Control (Sender Authorization)
Access Control prevents unauthorized uploads by enforcing a zero-trust boundary on the ingestion pipe. Only explicitly authorized Senders (such as Dahua 8-Channel 4K NVR (NVR4208)) can authenticate and stream video into this pipe. Any requests with unassigned credentials are rejected at the network edge.
Access Control
Restricts who can upload to this pipe.
Individual Senders
Grant or revoke pipe access for specific individual senders.
4Destinations (Target Cloud Storage Routing)
The Destinations section routes video clips to your target cloud storage provider. Linking your configured Data Store routes all received footage directly to your Cloudflare R2 bucket (cctv-dahua-recordings). Video files are committed on-the-fly via parallel multipart S3 PUTs without intermediate disk caching.
Destinations
This is where we send your files to.
Configure NetHDD / FTP Offsite Replication in Dahua 8-Channel 4K NVR (NVR4208) Firmware
Open your NVR's web configuration page or local GUI in your browser at its local LAN IP address and complete the steps below:
Step 5AConfigure FTP Streaming Credentials
Click Main Menu > Storage > FTP.
Enter your Rilavek Ingestion Pipe parameters as indicated by the red annotations below.
nvr_nvr42088p4ks2@p_cctv9x (SenderUsername@PipeID).Step 5BConfigure Upload Schedule (Snapshot & Record Schedule)
Click Setting > Storage > Schedule.
Select the Snapshot or Record tab, then ensure your schedule grid has Yellow (Motion) or Green (General) time blocks configured so the camera uploads footage during active periods.
Dahua IP cameras only upload files during times marked on the schedule matrix. Highlight periods in Yellow (Motion) for motion-triggered snapshot/clip upload to save S3 storage and ingress fees.
Step 5CEnable FTP Destination in Storage Path (Linkage Routing)
Click Setting > Storage > Destination > Path.
Check the "FTP" checkboxes under Scheduled and Motion Detection for Record and Snapshot. In Dahua firmware, FTP storage must be explicitly activated in this Path table for files to upload to Rilavek.
| Event Type | Scheduled | Motion Detection |
|---|---|---|
| FTP |
| Event Type | Scheduled | Motion Detection |
|---|---|---|
| FTP |
In Dahua IP camera firmware, you must check the "FTP" boxes under Scheduled and Motion Detection in this Path destination matrix. If these boxes remain unchecked, the camera will record events locally to SD card/NVR storage, but will never forward snapshots or video clips to your Rilavek FTP Ingestion Gateway even if the credentials under the FTP tab test 100% successfully.
Dahua Firmware Notes & Best Practices
Model-specific nuances, recommended settings, and verified workarounds for the NVR4208-8P-4KS2
Uploading all 8 channels simultaneously requires sufficient internet uplink bandwidth.
Verify Ingestion
Click Test in your NVR's FTP settings or trigger a test recording transfer. In your Rilavek dashboard, navigate to Pipes > your pipeline > Transfers tab to inspect incoming files as video clips stream into Cloudflare R2.
| FILE | SENDER | SIZE | DATE | STATE |
|---|---|---|---|---|
dahua/nvr4208-8p-4ks2/2026-09-10/ch01_143000.mp4 | nvr_nvr42088p4ks2 | 18.4 MB | Sep 10, 14:30 | Success |
dahua/nvr4208-8p-4ks2/2026-09-10/ch01_142500.mp4 | nvr_nvr42088p4ks2 | 21.2 MB | Sep 10, 14:25 | Success |
dahua/nvr4208-8p-4ks2/2026-09-10/ch01_142000.mp4 | nvr_nvr42088p4ks2 | 19.7 MB | Sep 10, 14:20 | Success |
Common questions
How does the Dahua 8-Channel 4K NVR (NVR4208) backup recordings to Cloudflare R2?
The Dahua 8-Channel 4K NVR (NVR4208) uses its native FTP / NetHDD client to upload multi-channel recordings directly to Rilavek on port 21. Rilavek pipes footage directly into your Cloudflare R2 bucket with zero disk writes, giving you a secure, automated offsite copy of your surveillance archive.
How does retention work on Cloudflare R2?
You define exact retention policies (e.g. 30, 90, or 365 days) directly in your Cloudflare R2 bucket using standard S3 Lifecycle expiration rules. Footage is never auto-overwritten by proprietary cloud caps.
What happens if my internet connection drops?
The NVR4208-8P-4KS2 continues recording footage to its internal hard drives locally and resumes offsite FTP replication to Cloudflare R2 once connectivity is restored.
Backup Dahua 8-Channel 4K NVR (NVR4208) to Cloudflare R2
Create your free Rilavek ingestion pipe in seconds. No NVR hardware, no proprietary camera cloud subscriptions, and 100% data ownership in your private storage bucket.
Free plan includes 10GB of transfer. No credit card required.