| Port No | 20 |
| Service Name | ftp-data |
| RFC Doc | 959 |
| Protocol | UDP |
| Description | File Transfer [Default Data] FTP data channel is used in active FTP, the server connects from port 20 to a port on the client machine to send the data. Related ports: 21 |
| Reference Link | File Transfer Protocol: RFC959
File Transfer Protocol specification: RFC765 Catch threats immediatelyWe work side-by-side with you to rapidly detect cyberthreats |