Transfer Protocol Support

MFTPlus supports multiple transfer protocols for flexible file movement.

Supported Protocols

Protocol	Description
SFTP	SSH File Transfer Protocol (recommended)
FTP	File Transfer Protocol
FTPS	FTP over TLS/SSL
Local	Local filesystem operations

Protocol Features

Adaptive Flow Control

Automatically adjusts transfer rate based on network conditions:

Initial: 10 MB/s
Network detected: 100 Mbps
Adjusted: 50 MB/s
Network change: 10 Mbps
Readjusted: 5 MB/s

Chunked Transfers

Files are split into chunks for:

• Parallel processing
• Efficient resumption
• Progress tracking

Compression

Optional compression for:

• Reduced bandwidth usage
• Faster transfers for compressible data
• Transparent compression/decompression

Checksum Verification

Every chunk is verified using:

• SHA-256 for integrity
• Automatic retransmission on failure
• End-to-end verification

Protocol Selection

Specify the protocol when creating transfers:

mftctl transfers create \
  --agent <id> \
  --source /path/to/file \
  --dest sftp://backup.example.com/incoming \
  --protocol sftp

Or send files directly with a protocol-specific destination URL:

mftctl send ./file.txt \
  --agent <id> \
  --to ftp://host.example.com/incoming

Supported URL Schemes

Scheme	Protocol	Example
sftp://	SFTP	sftp://user@host:22/path
ftp://	FTP	ftp://user@host:21/path
ftps://	FTPS	ftps://user@host:990/path
(local path)	Local	/var/data/file.txt

Encryption

File content can be encrypted during transfer:

mftctl send ./sensitive.pdf \
  --agent <id> \
  --to sftp://partner.example.com/incoming \
  --encryption aes256

Supported algorithms:

• aes256 - AES-256-GCM (default)
• chacha20 - ChaCha20-Poly1305

Connection Profiles

Store and reuse connection settings:

mftctl connections create \
  --name backup-server \
  --type sftp \
  --host backup.example.com \
  --port 22 \
  --username deploy \
  --auth key

mftctl connections test backup-server

Next Steps

• API Reference - Explore the API
• Plugins - Extend the protocol with custom plugins
• Quick Start - Set up your first transfer