How to Configure Your Rust Dedicated Server (server.cfg)

Complete Rust server.cfg reference — hostname, world size, seed, decay, performance, anti-hack, and all server convars.

Rust uses startup parameters AND server.cfg. The cfg file takes priority over startup params.

server.cfg

users.cfg

proceduralmap.sav

player.blueprints.db

The server1 folder name is set by +server.identity.

Server Identity

Setting	Description
`server.hostname "Name"`	Browser display name
`server.description "Text"`	Description at connect screen
`server.url "https://..."`	Server website URL
`server.headerimage "https://.../img.jpg"`	Header image (512x256 JPG)
`server.tags "weekly,vanilla"`	Browser filter tags
`server.maxplayers 50`	Max concurrent players

Setting	Default	Description
`server.seed`	random	Map seed (0–2,147,483,647)
`server.worldsize`	`4000`	Map size in meters (1000–6000)
`server.level`	`"Procedural Map"`	Map type: `Procedural Map`, `Barren`, `HapisIsland`
`server.saveinterval`	`300`	Auto-save interval (seconds)

💡 Tip: Preview seeds at rustmaps.com before using them. World size 3000–4000 is ideal for most servers.

Setting	Default	Description
`server.port`	`28015`	Game port (UDP)
`rcon.port`	`28016`	RCON port (TCP)
`rcon.password`	`""`	RCON password (required)
`rcon.web`	`1`	WebSocket RCON (modern standard)
`server.ip`	`0.0.0.0`	Bind IP

Setting	Default	Description
`decay.upkeep`	`true`	Upkeep system (structures need resources)
`decay.scale`	`1.0`	Decay speed multiplier
`fps.limit`	`30`	Server tick rate cap
`gc.buffer`	`256`	Garbage collection buffer (MB)
`antihack.enabled`	`true`	Anti-hack system
`server.secure`	`true`	EAC enforcement

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