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Port 27960Quake III Arena & ioquake3 Games

Ports 27960 through 27969 are commonly used by Activision's Enemy Territory, id Software's Quake III Arena, Quake Live, and various ioquake3-derived games for multiplayer communications. These ports primarily facilitate real-time data exchange between game servers and clients over UDP, enabling fast-paced, low-latency gameplay critical for first-person shooter experiences..

inNetwork ServicesGaming
transport
udp

single transport

in transit
cleartext

payload readable on path

assignment
unofficial

used by convention

risk
5/10

caution

lookups
10,214

rank 446 of 993 · top 45%

Technical Details

what runs on :27960

The port range 27960–27969 is traditionally associated with id Software's Quake III Arena engine, encompassing official titles such as Enemy Territory, Quake III Arena, and Quake Live, as well as community-based or open-source derivatives like ioquake3. These ports serve as the primary communication channels between dedicated game servers and player clients.

Communication largely relies on the User Datagram Protocol (UDP) to prioritize low latency data transfer essential for responsive, real-time gameplay. UDP allows continuous, rapid packet delivery without waiting for acknowledgments, which aligns with the demands of twitch-based first-person shooters. Ports in this range are often configurable within the server setup, but by convention, 27960 remains the default, with others supporting multiple server instances.

Beyond game state synchronization, these ports manage functions such as server discovery, matchmaking queries, ping updates, and in-game chat transmission. Some implementations extend functionality via additional protocols layered over UDP, but generally, simplicity and speed drive technical design choices for these legacy gaming network ports.

Security Information

exposure of :27960

risk score

5/ 10caution

worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.

network services averages 3.9 across 604 ports — this one sits 1.1 above.

in transit

cleartext

credentials and payloads are readable by anyone on path

assignment

unofficial

used by convention, not registered — what answers here varies by deployment

reachable over

udp

udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite

security overview

Common Vulnerabilities:

  • DDoS Amplification: The UDP-based nature of these ports leaves them susceptible to reflection and amplification attacks.
  • Server Exploits: Poorly patched game servers may contain vulnerabilities enabling remote code execution or denial of service via malformed packets.
  • Information Disclosure: Failure to restrict server queries may expose server details and player information.

Common Mitigations:

  • Proper Patching: Keep server software up-to-date with the latest security patches to close known exploits.
  • Rate Limiting: Apply rate-limiting on ingress to mitigate flooding and DDoS attempts.
  • Firewall Rules: Use firewalls to restrict UDP traffic to known client IPs or geographic areas, filtering unnecessary inbound traffic.
  • Network Hardening: Deploy anti-spoofing and reflection protections on network edge devices.
  • Application Layer Controls: Configure servers to limit information disclosure and disable unused services or ports.

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risk mix of the 8 listed

  • caution100%

0 of 8 encrypted