Port 5555 — ADB / Freeciv
Quick reference for TCP/UDP port 5555, used by ADB / Freeciv. Includes what the service does, security guidance and related ports.
What is port 5555?
Android Debug Bridge over TCP. Should never face the internet.
What port does ADB / Freeciv use?
ADB / Freeciv listens on port 5555 by default.
Security guidance
High risk — do not expose to the internet
Port 5555 (ADB / Freeciv) is high-risk because the service it carries is a frequent target for credential attacks, brute force or unpatched-vulnerability scanning. Keep it bound to localhost or your VPN, never forward it directly on a router, and require strong authentication.
Related ports
Frequently asked
What is port 5555 used for?+
Port 5555 is the standard TCP/UDP port for ADB / Freeciv. Android Debug Bridge over TCP. Should never face the internet.
What port does ADB / Freeciv use?+
ADB / Freeciv listens on port 5555 by default.
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