Which Arma 3 server-admin tools are available?

We list 6 tools for Arma 3: server.cfg Generator, Admin Commands & BE RCon, basic.cfg Network Tuning, Port Matrix & Firewall, Headless Client Setup, SteamCMD Deploy & Launch Params. All of them run straight in your browser.

Which ports does Arma 3 need open?

Arma 3 defaults to 2302/UDP, 2303/UDP, 2304/UDP, 2305/UDP. Use the actual instance configuration and allow only the listed protocols and ports. Check the host firewall, router forwarding and game visibility settings.

How do I install a dedicated Arma 3 server?

Install it with SteamCMD — the dedicated server app id for Arma 3 is 233780, so +app_update 233780 validate downloads or updates it. Config files usually live at server.cfg, basic.cfg, BattlEye/BEServer_x64.cfg.

Do these tools cost anything or need installing?

No. Everything runs in the page: no install, no sign-up, no cost. Enter your values and the result appears instantly, and you can copy the generated configs and commands with one click.

Military Sim

SteamCMD Deploy & Launch Params · Arma 3

Bohemia Interactive Ultimate Military Sim · Military Sim / Tactical Sandbox

Player tools indexed: 4 Admin consoles: 6

appid 233780 install (anonymous works for the base files; Workshop mod updates need a real Steam account with Steam Guard off, per the upstream egg) + launch parameter builder + a dated directory of hosts and community tools

Player tools (4)

Instant interactive calculations and recipe planners

Mk6 Mortar Fire Solution Aid

Artillery

Vanilla ballistic-computer field guide + ACE3 82mm rangetable ELEV / height-of-site correction + charges; no official range-to-mils table exists, so none is invented (the old fabricated formula was removed)

#mils#82mm

Open tool →

ACE3 Medical Blood-Volume Planner

Medic

Source-verified ACE3 constants (6.0 L blood / four hemorrhage classes / 3.0 L fatal / 300 s cardiac-arrest window halved by CPR) + linear timeline with an editable bleed rate and IV bag times; there is no AED in ACE3 (0 source hits)

#ACE3 medical#blood volume

Open tool →

Grid Reference & Mil-Relation Solver

Navigation

Grid-reference deltas (4/6/8/10 digit) to bearing & distance (pure geometry), target width × mils to range, lateral offset to mil correction, plus a call-for-fire format cheat sheet

#grid#ranging

Open tool →

Time-on-Target Salvo Planner

Artillery

Flight times come from the vanilla computer Travel Time / ACE3 rangetable (editable measured values); pure arithmetic yields each tube’s launch delay and the earliest feasible impact time, flagging any tube that cannot make it

#TOT#salvo

Open tool →

Server admin and config generation (6)

Config files, startup scripts and command wizards for running a server

server.cfg Generator

Config

Emits only multi-source-verified official keys (LinuxGSM template × official wiki template × host KBs), annotating values and sources per key; passwords stay empty placeholders; voteThreshold > 1 is rejected on the spot (the old sample’s 1.5 could never pass a vote)

#server.cfg#official keys

Generate config →

Admin Commands & BE RCon

Commands

Full # command table (player IDs come from #userlist, not #monitor) + kick/ban generator + BEServer_x64.cfg builder (RConPort is a required user-chosen port; there is no official "+4" formula; the old page’s #maxping & co. are server.cfg keys, now moved back)

## commands#BE RCon

Generate config →

basic.cfg Network Tuning

Network

Bandwidth / packet / error keys in the official sample’s terms; MinBandwidth is computed from the documented "players × 256 kbps" guideline and editable, MaxBandwidth defaults to 2× matching the official sample (5,120,000 / 10,240,000)

#basic.cfg#bandwidth

Generate config →

Port Matrix & Firewall

Ports

Official port table 2302 (game+VON) / 2303 (Steam query) / 2304 (Steam master) / 2305 (VON reserved, unused) + user-defined BE RCon port + multi-instance planner (editable step; no official spacing exists) + Windows/Linux firewall commands; the game has no IPv6 support

#2302-2305#firewall

Generate config →

Headless Client Setup

headlessClients[]/localClient[] allow-lists in server.cfg + HC launch command builder (-client -connect -password -profiles -name) + the LinuxGSM same-box two-instance recipe + the "mission must support HC" prerequisite

#Headless#AI offload

Generate config →

SteamCMD Deploy & Launch Params

Deploy

#SteamCMD#233780

Generate config →

FAQ

Which Arma 3 server-admin tools are available?: We list 6 tools for Arma 3: server.cfg Generator, Admin Commands & BE RCon, basic.cfg Network Tuning, Port Matrix & Firewall, Headless Client Setup, SteamCMD Deploy & Launch Params. All of them run straight in your browser.
Which ports does Arma 3 need open?: Arma 3 defaults to 2302/UDP, 2303/UDP, 2304/UDP, 2305/UDP. Use the actual instance configuration and allow only the listed protocols and ports. Check the host firewall, router forwarding and game visibility settings.
How do I install a dedicated Arma 3 server?: Install it with SteamCMD — the dedicated server app id for Arma 3 is 233780, so +app_update 233780 validate downloads or updates it. Config files usually live at server.cfg, basic.cfg, BattlEye/BEServer_x64.cfg.
Do these tools cost anything or need installing?: No. Everything runs in the page: no install, no sign-up, no cost. Enter your values and the result appears instantly, and you can copy the generated configs and commands with one click.