FTP Automation: Automated File Transfers Made Reliable
FTP automation eliminates manual file transfers by automatically uploading and downloading files over FTP, FTPS, and SFTP protocols. Whether you need to push files to trading partners the instant they appear, pull data feeds on a schedule, or synchronise directories between servers, FileWatcher provides built-in FTP automation that runs unattended as part of your workflow pipelines.
Why Automate File Transfers?
Manual FTP transfers create bottlenecks, delays, and security risks. Staff must remember to check for files, log into remote servers, navigate directory structures, and transfer files — all tasks where human error causes failures. A forgotten overnight transfer, a file sent to the wrong remote directory, or a missed retry after a connection failure can disrupt business processes and partner relationships.
Automated FTP transfers solve these problems permanently. FileWatcher monitors local folders and triggers uploads the moment files are ready. It schedules periodic downloads from remote servers without human involvement. When connections fail, it retries automatically based on configurable policies. The result is reliable, timely file transfers that operate around the clock without staff intervention.
Supported Transfer Protocols
FileWatcher supports the full range of file transfer protocols used in business environments:
FTP (File Transfer Protocol)
Standard FTP provides the widest compatibility with legacy systems and older trading partner infrastructure. While unencrypted, FTP remains common in internal networks and environments where files are not sensitive. FileWatcher supports active and passive FTP modes, configurable port ranges, and directory listing parsing for various server implementations.
FTPS (FTP over SSL/TLS)
FTPS adds TLS encryption to the FTP protocol, securing data in transit without requiring infrastructure changes. FileWatcher supports both explicit FTPS (STARTTLS upgrade on standard port 21) and implicit FTPS (direct TLS connection on port 990). Certificate validation ensures you connect to legitimate servers, while client certificate support enables mutual authentication.
SFTP (SSH File Transfer Protocol)
SFTP operates over SSH, providing strong encryption and authentication through a single connection. It is the preferred protocol for secure transfers across the internet and is mandatory for many compliance frameworks. FileWatcher's SFTP support includes password authentication, SSH key authentication (RSA, DSA, ECDSA), and configurable host key verification to prevent man-in-the-middle attacks.
Upload Automation: Push Files on Arrival
The most common FTP automation scenario is uploading files to remote servers when they appear locally. FileWatcher combines folder monitoring with FTP actions to create push-based transfer workflows:
- Monitor source folder — FileWatcher watches a designated output directory for new files matching configured patterns
- Verify file stability — Wait for the file to be fully written and closed before initiating transfer
- Connect and authenticate — Establish connection to the remote server using stored credentials
- Upload file — Transfer the file to the configured remote directory path
- Verify transfer — Confirm successful upload through size verification or remote file listing
- Post-transfer action — Move the local file to an archive folder, delete it, or rename it to indicate completion
This workflow executes within seconds of a file appearing, ensuring trading partners and remote systems receive data as quickly as possible. FileWatcher handles the entire sequence without manual intervention.
Download Automation: Pull Files on Schedule
Many workflows require pulling files from remote servers — downloading data feeds, retrieving partner deliveries, or synchronising with cloud systems. FileWatcher automates downloads through scheduled and event-triggered retrieval:
Scheduled Downloads
Configure FileWatcher to connect to remote servers at specified intervals — every 5 minutes, hourly, daily, or on custom schedules. Each connection checks for new or modified files matching your criteria, downloads them to local processing folders, and optionally removes or renames the remote copies to prevent duplicate downloads.
New File Detection on Remote Servers
FileWatcher can track which files have already been downloaded and only retrieve new arrivals. By maintaining a record of previously seen filenames or timestamps, it avoids re-downloading files while ensuring nothing new is missed. This is essential for remote servers where files accumulate over time rather than being removed after pickup.
Post-Download Processing
Downloaded files feed directly into automated file processing pipelines. FileWatcher places downloads in monitored folders that trigger subsequent action chains — transformation, validation, routing, and delivery to internal systems. The download step becomes the first link in a complete automation chain.
Retry Logic and Reliability
Network connections fail. Remote servers go offline for maintenance. Transfer sessions time out. Production-grade FTP automation must handle these realities gracefully:
- Automatic retry — Configure the number of retry attempts and delay between retries. FileWatcher re-attempts failed transfers without manual intervention
- Exponential backoff — Progressive delays between retries prevent overwhelming recovering servers
- Connection recovery — Automatic reconnection after dropped connections, with session resumption where the protocol supports it
- Transfer resume — For large files, resume interrupted transfers from the point of failure rather than restarting from the beginning
- Timeout configuration — Separate timeouts for connection, authentication, and data transfer prevent indefinite hangs
- Failure notification — After maximum retries are exhausted, email alerts notify administrators for manual investigation
These reliability features ensure that transient network issues do not become permanent failures. Files eventually reach their destination without requiring staff to monitor and manually retry.
Security Configuration
Secure file transfer requires careful configuration beyond simply choosing an encrypted protocol:
- Credential storage — FileWatcher stores connection credentials securely, avoiding plaintext passwords in scripts or configuration files
- Key-based authentication — SFTP connections can use SSH private keys instead of passwords, eliminating password exposure risks
- Certificate validation — FTPS connections verify server certificates against trusted authorities, preventing connection to impersonated servers
- Host key verification — SFTP connections verify server host keys to detect man-in-the-middle attacks
- Temporary file patterns — Upload files with temporary names during transfer, renaming to final names only after complete upload. This prevents remote systems from processing partial files
Multi-Server Configuration
Enterprise environments typically transfer files with multiple remote endpoints — different trading partners, branch offices, cloud services, and internal systems. FileWatcher manages multiple server configurations simultaneously:
- Named connections — Store multiple server profiles with distinct credentials, protocols, and settings
- Per-folder routing — Different monitored folders can trigger uploads to different remote servers based on file type or source
- Parallel transfers — Upload or download from multiple servers concurrently without waiting for sequential completion
- Server-specific settings — Each connection maintains its own retry policies, timeout values, and transfer modes to accommodate different server capabilities
Common FTP Automation Scenarios
FTP automation serves diverse business requirements across industries:
- EDI document exchange — Automatically upload outbound EDI files to trading partners and download inbound documents for processing
- Report distribution — Push generated reports to remote servers where partners or branch offices retrieve them
- Data feed ingestion — Download price lists, inventory updates, or market data from provider servers on schedule
- Backup replication — Upload compressed backup archives to offsite storage servers for disaster recovery
- Website content deployment — Push updated content files to web servers when local copies change
- Regulatory submission — Upload compliance reports to government portals on prescribed schedules
Integration with Workflow Automation
FTP automation is one component of complete file-based workflow automation. It works alongside folder monitoring that triggers uploads, automated file processing that prepares files for transfer, and triggered batch processing that coordinates multi-file transfers. For complete end-to-end scenarios, explore file-based business workflows.
Get Started with FTP Automation
FileWatcher's built-in FTP automation eliminates the need for separate transfer tools, custom scripts, or manual processes. Configure your connections through the visual interface, link them to folder monitoring and processing actions, and deploy as a Windows Service for reliable 24/7 automated file transfers.