6881

Q: What is port 6881?

BitTorrent peer-to-peer file sharing Ports 6881-6889 (and 6969) are used by the BitTorrent protocol for peer-to-peer file sharing. BitTorrent is a legitimate protocol widely used for distributing Linux distributions, game updates, and open-source software. It uses both TCP and UDP. Many ISPs throttle or block this port range due to the volume of traffic it generates.

BitTorrent Safe

BitTorrent peer-to-peer file sharing

Port

6881

Protocol

BOTH

Service

BitTorrent

Security

Safe

Full name: BitTorrent

What is port 6881?

Ports 6881-6889 (and 6969) are used by the BitTorrent protocol for peer-to-peer file sharing. BitTorrent is a legitimate protocol widely used for distributing Linux distributions, game updates, and open-source software. It uses both TCP and UDP. Many ISPs throttle or block this port range due to the volume of traffic it generates.

Quick checks

$ nc -zv example.com 6881

$ nmap -p 6881 example.com

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