Port 2303ArmA Multiplayer Server Reporting
Port 2303 is primarily used by ArmA multiplayer servers to handle server status reporting and lightweight communications. It is often the default port incremented by one over the main game connection port. This port facilitates game state synchronization, server list broadcasting, and connection coordination among clients for a smoother multiplayer experience..
- transport
- udp
- in transit
- cleartext
- assignment
- unofficial
- risk
- 4/10
- lookups
- 9,771
single transport
payload readable on path
used by convention
caution
rank 488 of 993 · top 49%
Technical Details
what runs on :2303ArmA, a military simulation game developed by Bohemia Interactive, utilizes UDP port 2303 for its multiplayer infrastructure, specifically for server status reporting and communication coordination. This port typically serves as an adjunct to the main gameplay traffic, which may occur on an adjacent or base port, to separate game data from server listing and management exchanges.
The game client communicates to servers via this port to discover active sessions, retrieve server metadata, report latency, and initiate connection handshakes. This separation helps reduce congestion on the primary gameplay data stream and maintains continuity in server management tasks.
Being connectionless, UDP is favored for its low overhead and reduced latency in gaming scenarios, allowing for quick updates that do not require acknowledgments, which is ideal for real-time server status interrogations and rapid matchmaking.
Security Information
exposure of :2303risk score
4/ 10caution
worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.
gaming averages 4.0 across 124 ports — this one sits level with it.
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:
- UDP-based services are inherently susceptible to spoofing, reflection, and amplification attacks, such as DDoS.
- Game server reporting services can be abused for server enumeration, opening reconnaissance opportunities to threat actors.
- Potential weaknesses in the game software itself may expose the server to exploits via malformed packets.
Common Mitigations:
- Apply access control lists (ACLs) or firewall rules to restrict access to trusted clients and networks.
- Regularly update and patch game server software to protect against known vulnerabilities.
- Employ anti-DDoS solutions and rate limiting to prevent abuse of UDP services.
- Monitor network traffic for unusual patterns indicative of scanning or exploit attempts.
Related Ports
the 8 most looked-up other ports in gaming — 124 ports carry that label.
| port | service | risk | |||
|---|---|---|---|---|---|
| :8888 | D2GS Admin Console | TCP | Remote Access | caution | 83.7k |
| :8888 | Earthland Realms 2 Server | TCP | Gaming | caution | 73.1k |
| :1513 | Garena Gaming | TCPUDP | Gaming | caution | 33.1k |
| :5555 | Freeciv | TCP | Security | caution | 26.9k |
| :18200 | Audition Online Server Check | TCPUDP | Gaming | caution | 20.9k |
| :12345 | NetBus / NetBuster | Security | caution | 19.9k | |
| :18206 | Audition FAM DB | TCPUDP | Databases | caution | 19.1k |
| :18505 | Audition Dance Battle Status Check | TCPUDP | Network Services | caution | 18.9k |
risk mix of the 8 listed
- caution100%
0 of 8 encrypted