Port 6881 — BitTorrent

TCP/UDP · Port 6881 is used for the Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) services associated with BitTorrent, a peer-to-peer file sharing protocol. This port is commonly used for downloading and uploading files over the internet.

Port Number: 6881
Service Name: BitTorrent
Protocol: TCP/UDP
Common Software: Various BitTorrent clients

Security Notes

Review IANA registry for port 6881 usage. Apply principle of least privilege - only open ports that are required.

FAQ

What is port 6881 used for?

Port 6881 is used for BitTorrent. Port 6881 is used for the Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) services associated with BitTorrent, a peer-to-peer file sharing protocol. This port is commonly used for downloading and uploading files over the internet. Common software: Various BitTorrent clients.

Is port 6881 dangerous to leave open?

Review IANA registry for port 6881 usage. Apply principle of least privilege - only open ports that are required.

How do I check if port 6881 is open?

Use nmap: nmap -p 6881 <target> or check locally: ss -tlnp | rg 6881