FTP
Master FTP operations
Harden credentials, isolate servers, and plan for encrypted successors.
- Default port
- 20/21
- Protocol
- TCP
- Primary use
- Legacy file transfer
Why FTP matters
FTP persists for legacy partners; mitigate exposure while migrating.
Immediate actions
Restrict FTP to DMZ segments and limit passive data channel ranges.
Operational guardrails
Adopt FTPS or move partners onto SFTP when compatibility allows.