ServerConfiguration

Summary

The default server configuration file is named server.xml, and is located in the same folder as the file named Server.exe on Windows or Server on Linux.
You can use a custom server configuration file with the -config option. Example: Server.exe -config my-config.xml. See the server command line page for more info on accepted command arguments. The file uses the XML syntax, with a root node named server.
Official XML Specification

Settings

Server Property Name	Default Value	Description
bindip	true	Forces the server to use a specific IP. Only for hosts that have multiple IP addresses.
cvar	null	Sets a server's cvar value. See CVars for more information.
duplicatenames	false	The status of whether to allow players with duplicate names.
game	gta:iii (required)	The identifier of the game that the server should run for. See game identifiers for more information.
gamemode	n/a (required)	Custom text to identify the game mode. Appears in the server browser. This is not IV gamemode ID
httpport	22000	The port for the server to transfer HTTP data on, between 0 and 65,535.
httpserver	true	Whether or not to run the HTTP server
httpurl	"" (empty string)	A URL (like a CDN) containing the server's client resource files and scripts. Clients will download them from that URL instead of the server.
iv_episode	0	Sets the DLC to use for IV. See IV Episodes for more information
iv_gamemode	30	Sets the built-in gamemode for IV. See IV Gamemodes for more information.
iv_nativemultiplayer	0	If enabled, server uses native sync (from Rockstar/GFWL), otherwise server uses GTAC's custom sync
logpath	"" (empty string)	The path to store the server logs. Leave blank to not use server logs.
logtimestamp	"" (empty string)	The timestamp format to use in the log files. Based on the strftime format from C++. Some examples: [%H:%M:%S] This displays only the time [%d/%m/%Y %H:%M:%S] This would display the date in dd/mm/yyyy format followed by the time in hour:minute:second format.
maxplayers	255	The maximum amount of players that can connect to the server, between 0 and 255.
minclientversion	1.3.0	The minimum version that clients can connect with. See latest client version here
modules	(empty node)	The modules to load. Use the <module> tag inside the <modules> tag, for each module to load, including the src attribute for the directory path.
multithreaded	false	Enables/disables using multiple threads for managing network peers. Useful on multi-core systems.
password	"" (empty string)	The password to connect to the server.
pickupstreamindistance	50.0	The distance that a pickup is sent to the client, recommended to be about 50.0.
pickupstreamoutdistance	100.0	The distance that a pickup is removed from the client, recommended to be about 100.0.
port	22000	The port for the server to listen on, between 0 and 65,535. Players only need to know the port if using the /connect command in-game, not when using the server browser.
rcon	false	[Inoperable] The status of whether the server will host the remote console service.
rconpassword	"" (empty string)	The password to connect to the remote console service.
resources	(empty node)	The resources to load. Use the <resource> tag inside the <resources> tag, for each resource to load, including the src attribute for the directory path.
rule	"" (empty string)	Adds a server rule. See server rules for more info.
serverbrowser	false	The status of whether to show the server in the server browser, use true or false.
servername	n/a (required)	The name of the server, which appears in the server browser.
streamindistance	100.0	The distance that an entity is sent to a client, recommended 100.0.
streamoutdistance	200.0	The distance that an entity is removed from a client, recommended 200.0. Must be higher than streamindistance
syncinterval	30	The interval, in milliseconds, of each sync occurrence for the regularly sync'd data, between 0 and 65,535.
syncmethod	interval	The sync type for regularly sync'd data. Use none, interval, or replay. (See sync methods section below)
timesync	false	Enables/disables syncing the time set by server to all clients
weathersync	false	Enables/disables syncing the weather set by server to all clients

CVars

See the CVars page for info.

Sync Methods

There are a few different config options for server sync. Here is the list of them and a brief description of each.

Name	Description
none	Disables element sync entirely. Not recommended for multiplayer environments.
replay	This will sync elements as soon as they're processed. If CPU usage is too busy and processing is slow, sync will be too.
interval	Default. This forces sync of elements at a specified interval. Use <syncinterval> in server config to set the interval time in milliseconds (ms)