FTPS Implicit SSL — Common Ports
Community software entries: links are references, not individual verification.
Role Unconfirmed (1)
TCP 990 is implicit-mode FTPS: the TLS handshake begins the moment the client connects, with no AUTH TLS negotiation. The explicit variant (port 21 + AUTH TLS) is more common today, but many older clients and appliances still default to 990.
FTP over SSL/TLSEncryption
Scope
Port associations on this page are community-database references (common usage), not a live measurement of any machine; confirm with the official documentation before deployment.
Frequently asked questions
What port does FTPS Implicit SSL use?
FTPS Implicit SSL commonly uses these ports: 990. These are community database references — actual configuration may differ.
How do I check if FTPS Implicit SSL is running?
Run sudo ss -tlpn 'sport = :990' on the server to check for listening processes on these ports. Also use systemctl status <service> to check the service state. Without root you may not see other users' processes. A listening port alone does not prove the software identity — verify with the config file and process name.
What category does FTPS Implicit SSL belong to?
FTPS Implicit SSL belongs to the File Sharing category. This page lists the software's port associations and their roles.
Quick Info
- Categories
- File Sharing
- Associated ports
- 1
- Aliases
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