Port 6881 — BitTorrent
Quick reference for TCP/UDP port 6881, used by BitTorrent. Includes what the service does, security guidance and related ports.
Port
6881
Protocol
TCP/UDP
Service
BitTorrent
What is port 6881?
BitTorrent peer port.
What port does BitTorrent use?
BitTorrent listens on port 6881 by default.
Security guidance
Medium risk — open with care
Port 6881 (BitTorrent) can safely face the internet if you keep the software up to date, restrict admin endpoints, and use TLS where possible. Audit who can reach it and watch your logs.
Related ports
Frequently asked
What is port 6881 used for?+
Port 6881 is the standard TCP/UDP port for BitTorrent. BitTorrent peer port.
What port does BitTorrent use?+
BitTorrent listens on port 6881 by default.
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