- Keep game servers and their plugins updated.
- Rate-limit queries to limit DDoS amplification.
- Run game servers under an unprivileged account.
Port 8881: Galaxy4D Online Game Engine
Port 8881 is assigned by IANA to galaxy4d (Galaxy4D Online Game Engine).
8881
How galaxy4d works
GamingThe game client and server exchange small updates many times per second over port 8881.
- Transport
- TCP
- Exposure risk
- not rated depends on the program listening
- Encryption
- Unknownnot stated by the registry
- IANA status
- Assigned1 registered service
- Range
- Registered (1024-49151)
- Category
- Gaming
Is port 8881 dangerous?
We have no specific security note for port 8881. Its risk depends on the program actually listening on it. General advice for gaming services:
IANA registry entries for port 8881
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| galaxy4d | 8881 | TCP | Galaxy4D Online Game Engine | - | 2012-06-18 |
| - | 8881 | - | Reserved | - | - |
// source: IANA service name and port number registry
Which program uses port 8881, and is it reachable?
Linux
sudo ss -ltnup 'sport = :8881' # process listening on 8881
sudo lsof -nP -i :8881macOS
sudo lsof -nP -i :8881
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 8881 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 8881 netstat -ano | findstr :8881
From another machine
nmap -p 8881 -sV <host> nc -zv <host> 8881
Block it in the firewall
sudo ufw deny 8881/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 8881" -Direction Inbound -LocalPort 8881 -Protocol TCP -Action Block # Windows
What is port 8881 used for?
Port 8881 is assigned by IANA to galaxy4d (Galaxy4D Online Game Engine).
Is port 8881 TCP or UDP?
Port 8881 is registered for TCP.
Is it safe to open port 8881?
It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Keep game servers and their plugins updated.
How do I check if port 8881 is open?
On Linux run "ss -ltnup 'sport = :8881'", on macOS "lsof -nP -i :8881", and on Windows "netstat -ano | findstr :8881" to see the local process. From another machine, "nmap -p 8881 <host>" shows whether it is reachable.
Other gaming ports
:25565 Minecraft tcp · moderate risk :27015 Steam / Source engine udp · tcp · moderate risk :666 doom Id Software tcp · udp :1926 Evolution Game Server tcp · udp :2346 Game Connection Port tcp · udp :2347 Game Announcement and Location tcp · udp :2348 Information to query for game status tcp · udp :2914 Game Lobby tcp · udp