FiveM Server DDoS Mitigation & Anti-Cheat Optimization Blueprint

FiveM GTA V roleplay servers are among the most frequently attacked online game platforms. Malicious competitors routinely launch multi-vector volumetric UDP floods (DNS, NTP, CLDAP amplification) on default game ports (30120) alongside HTTP layer-7 attacks on the TXAdmin management interface (40120).

The Anatomy of FiveM DDoS Attacks

1. Volumetric UDP Amplification: Floods saturating the server uplink with millions of spoofed UDP packets per second.
2. CitizenFX Protocol Exploits: Malformed UDP game packets designed to overflow connection tracking tables and crash the FXServer binary.
3. HTTP Layer-7 Asset Exhaustion: Scripted HTTP bots repeatedly downloading large vehicle and map textures to exhaust CPU and network bandwidth.

How Altivora Protects FiveM Communities

• Stateful UDP Port Scrubbing: Hardware scrubbers inspect incoming UDP packets, allowing only legitimate CitizenFX client handshakes through.
• TXAdmin Port Isolation: Isolates port 40120 behind automatic rate-limiting and challenge-response filters.
• Gen4 NVMe Soft RAID Storage: High read throughput eliminates texture pop-in and vehicle asset streaming lag for connecting players.

Optimized server.cfg Configuration Blueprint

# Endpoints
endpoint_add_tcp "0.0.0.0:30120"
endpoint_add_udp "0.0.0.0:30120"

# Server Concurrency
sv_maxclients 128
set onesync on
set onesync_distanceCullVehicles true
set onesync_distanceCulling true

# Network Performance
set sv_networkTickRate 60
set sv_requestParanoia 2

# Security & DDoS Hardening
sv_authMinTrust 4
sv_pureLevel 1
set sv_enableNetworkedSounds false

# Database Pooling (oxmysql)
set mysql_connection_string "user=fivem_user;password=SecurePassword;host=127.0.0.1;port=3306;database=fivem_db;charset=utf8mb4;sslmode=none;multipleStatements=true;pool=10"
set mysql_slow_query_warning 150