| Port No | 21 |
| Service Name | ftp |
| RFC Doc | 959 |
| Protocol | TCP |
| Description | File Transfer [Control] FTP, running at TCP port 21, is one of the oldest protocols on the net. Client connects to port 21 and send commands to port 21. Related ports: 20 |
| Reference Link | File Transfer Protocol: RFC959 File Transfer Protocol specification: RFC765 Catch threats immediatelyWe work side-by-side with you to rapidly detect cyberthreats |