Details of port 21
The table below provides some useful information about port 21/tcp and 21/udp. It answers questions such as:
- What application uses the port 21/tcp or 21/udp?
- Where can I find detailed information about port 21/tcp or 21/udp?
We hope you find this page helpful and a valuable resource.
1 port(s) found in database.
| Port: | 21/tcp | Type: | FTP |
|---|---|---|---|
| Description: | |||
| 20/tcp is a standard port for File Transfer Protocol (FTP) Control Channel. | |||
| [Detailed description] | |||
| Related links: | |||
| RFC 959 |
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| Related ports: | |||
| 20/tcp | |||