IAREGAMER FAQ

Config Files

Core game / server (vanilla)
- server.cfg — main server rules: hostname, password, passwordAdmin, maxPlayers, motd[], motdInterval, voteMissionPlayers, voteThreshold, verifySignatures, equalModRequired, kickDuplicate, persistent, reportingIP, logFile, onUnsignedData, onHackedData, onDifferentData, class Missions (rotation). Location: same dir as arma2oaserver.exe unless overridden by -config.
- basic.cfg — network & bandwidth tuning: MinBandwidth, MaxBandwidth, MaxMsgSend, MinErrorToSend, MinErrorToSendNear, MaxSizeGuaranteed, MaxSizeNonGuaranteed, WindowSize, WindowCargoSize, MaxCustomFileSize, adapter, 3D_Performance, terrainGrid, viewDistance (legacy). Location: server root unless overridden by -cfg.
- Profiles folder — created by -profiles and -name. Contains Users//.Arma2OAProfile (difficulty & preferences), Users//.vars.Arma2OAProfile, arma2oaserver.RPT (runtime log), crash dumps.
- mpmissions/ — mission PBOs, e.g. co@xx_example.Chernarus.pbo, DayZ_Epoch_11.Chernarus.pbo.
- keys/ — .bikey signature keys for allowed mods (must match client .bisign).

BattlEye (if enabled)
- BattlEye/BEServer.cfg — RConPassword, RConPort (TCP), optional RConIP.
- BattlEye/bans.txt — bans list.
- BattlEye/*.txt — filters: scripts.txt, createvehicle.txt, remoteexec.txt, publicvariable.txt, setvariable.txt, addweaponcargo.txt, etc.
- BattlEye/ (logs) — if filter logging enabled.

Common mod stacks (examples)
- @CBA;@CBA_A2;@CBA_OA — Community Base Addons; content in @ModName/addons/*.pbo; signatures in @ModName/keys/*.
- DayZ/Epoch server-side: @DayZ_Epoch_Server/addons/dayz_server.pbo (server logic), instance__/config.cfg (host, port, names, passwords), instance__/HiveExt.ini (MySQL connection, hive mode, time control).
- BEC (3rd-party controller): BEC/Config/Config.cfg (general), BEC/Config/Scheduler.xml (restarts/messages), BEC/Config/Admins.xml (admins).

Logs / outputs
- arma2oaserver.RPT — main log (in -profiles root).
- netlog (if -netlog) — legacy network log in -profiles root.
- ranking file (if -ranking=) — MP stats in -profiles root.

Startup Parameters

Default command line (safe baseline)
arma2oaserver.exe -ip=0.0.0.0 -port=2302 -config=server.cfg -cfg=basic.cfg -profiles=profiles -name=server -world=empty -mod="@CBA;@YourMods" -nosplash -noPause

Port scheme (relative to Game Port GP)
- GP (UDP) — gameplay traffic (default 2302).
- GP+1 (UDP) — Steam query/handshake.
- GP+2 (UDP) — Steam master/aux traffic.
- GP+3 (UDP) — additional aux channel (voice/aux, varies by build).
- BattlEye RCon (TCP) — set in BattlEye/BEServer.cfg; many admins use GP+4.

Core server / file locations
-ip= — bind address (default: all).
-port= — base UDP game port (default: 2302).
-config= — path to server.cfg (rules/missions).
-cfg= — path to basic.cfg (network tuning).
-profiles= — root for Users, RPT, logs, ranking.
-name= — profile folder name under Users (creates "Users//.Arma2OAProfile").
-mod="m1;m2;..." — mod load order (server/client). Use absolute or relative paths.
-world=empty — skip world preload (faster dedicated start).
-nosplash — skip splash screens.
-noPause — prevent pause when window loses focus.
-par= — read additional command-line parameters from a text file (one line).

Performance / threading
-cpuCount= — hint CPU core count (default auto).
-exThreads= — extra worker threads (I/O/geometry). Typical values 3–7; 0=auto.
-maxMem= — cap process RAM usage (default auto).
-malloc= — custom memory allocator DLL (e.g. tbbmalloc_bi.dll).
-winxp — legacy thread model (only for very old OS).

Logging / diagnostics
-noLogs — reduce logging (not recommended in production).
-netlog — produce legacy network log (debug; impacts perf).
-showScriptErrors — print SQF script errors (useful for testing missions/mods).
-ranking= — write MP ranking/stats file in -profiles.
-pid= — write PID to file for watchdogs.

BattlEye / security
-bepath= — explicit BattlEye folder (default "./BattlEye").
-checkSignatures — enforce signature checks via CLI (legacy; usually use verifySignatures=2 in server.cfg).

Beta / compatibility
-beta= — load OA beta build (e.g. -beta=Expansion\beta;Expansion\beta\Expansion).
-nosound, -skipIntro, -window, -x=, -y= — client-facing options; normally unnecessary on dedicated.

Notes
- Quote paths with spaces. Keep most gameplay/admin options in server.cfg rather than CLI. Mod order matters; ensure matching .bikey files are present in keys/.

Troubleshooting

Not visible in server browser
- Open UDP GP, GP+1, GP+2, GP+3 on firewall/NAT. Confirm reportingIP in server.cfg. Verify ISP or host does not block UDP.

BattlEye RCon cannot connect
- Check BattlEye/BEServer.cfg for RConPassword and RConPort, open that TCP port, and verify no extra BOM/whitespace in the file.

Players get "Signature check failed"
- Put matching .bikey files in keys/. Ensure clients load the same mod versions. Set verifySignatures=2 in server.cfg.

DayZ/Epoch database errors
- Validate HiveExt.ini (host, db, user, pass). Confirm MySQL reachability and firewall. Check arma2oaserver.RPT and HiveExt.log for exact error lines.

High desync / rubber-banding
- Tune basic.cfg: MaxMsgSend, MinErrorToSend, MinErrorToSendNear, MaxSizeGuaranteed/NonGuaranteed. Reduce AI count and viewDistance in missions. Avoid -noLogs so you have RPTs.

Server crashes or hangs on boot
- Remove recently added mods, start with only @CBA. Check missing dependencies in RPT. Verify adequate disk space and that the -mod order is correct.

Players stuck on "Waiting for host"
- Mismatch between mission addons and server mods. Repack mission PBO with correct requiredAddons, confirm signatures, and clear client cache.