How to Configure Classic MU Online Server (Season 1-2) from Scratch

Prerequisites and Installation Environment

Before starting, prepare the environment with the following components:

• Operating system: Windows Server 2008/2012 or Windows 10/11 (64-bit)
• SQL Server: 2000 (MSDE) or 2005 Express — compatible with MuServer S1/S2
• Server files: MuServer Season 1 or Season 2 (build matching your client version)
• Minimum RAM: 2 GB (recommended 4 GB for local testing)
• Required ports: 44405, 55901, 55551, 55980

Step 1 — Install and Prepare SQL Server

1.1 Install SQL Server 2000 (MSDE) or SQL Server 2005 Express. After installation, open SQL Server Enterprise Manager or Management Studio and confirm the service is running.

1.2 Create the main database:

CREATE DATABASE MuOnline
GO
USE MuOnline
GO

1.3 Execute the table creation scripts provided with your MuServer package. They are typically located at:

MuServer/SQL/MuOnline.sql
MuServer/SQL/MuOnline_Event.sql
MuServer/SQL/MuOnline_Log.sql

Run each script in the order above using Query Analyzer (SQL 2000) or Management Studio (SQL 2005+).

1.4 Configure the database access user:

USE master
GO
EXEC sp_addlogin 'muonline', 'YourStrongPassword123', 'MuOnline'
GO
USE MuOnline
GO
EXEC sp_adduser 'muonline', 'muonline', 'db_owner'
GO

Step 2 — MuServer S1/S2 Directory Structure

After extracting the server files, the structure should be:

C:\MuServer\
├── ConnectServer\
│   ├── ConnectServer.exe
│   └── ConnectServer.cfg
├── GameServer\
│   ├── GameServer.exe
│   ├── GameServer.ini
│   └── Data\
│       ├── MonsterSetBase.txt
│       ├── Drop\
│       └── Events\
│           ├── BloodCastle\
│           └── DevilSquare\
├── DataServer\
│   ├── DataServer.exe
│   └── DataServer.cfg
└── EventServer\
    ├── EventServer.exe
    └── EventServer.cfg

Step 3 — Configure the ConnectServer

Open ConnectServer/ConnectServer.cfg and adjust the following parameters:

[CONNECT_SERVER_INFO]
Port               = 44405
MaxConnectPerIP    = 10
MaxAcceptCount     = 1000
PingInterval       = 30

Then edit the game server section to point to the GameServer:

[GAME_SERVER_INFO_0]
ServerCode    = 0
ServerName    = Lorencia
ConnectIP     = 127.0.0.1
Port          = 55901

If running on a VPS with a public IP, replace 127.0.0.1 with the machine's internal IP (not the public IP — the client receives the public IP provided by the ConnectServer).

Step 4 — Configure the GameServer

4.1 Open GameServer/GameServer.ini and configure the database connection:

[DataBase]
IP          = 127.0.0.1
Port        = 1433
ID          = muonline
PW          = YourStrongPassword123
DBName      = MuOnline

4.2 Configure the server's base rates:

[GameServerInfo]
ExperienceRate    = 10
MasterExpRate     = 5
DropRate          = 30
ZenRate           = 100
MaxLevel          = 400
MaxResets         = 0

4.3 For Season 2, enable Dark Lord in the section:

[DarkLord]
Enable = 1
MaxSummonMonster = 5

Step 5 — Configure the DataServer

Open DataServer/DataServer.cfg:

[DataServerInfo]
ServerCode = 0
Port       = 55551
DBIP       = 127.0.0.1
DBPort     = 1433
DBID       = muonline
DBPW       = YourStrongPassword123
DBName     = MuOnline

The DataServer handles character and item storage. It must be started before the GameServer and ConnectServer.

Step 6 — Configure the EventServer (Blood Castle and Devil Square)

The EventServer manages automatic events. Edit EventServer/EventServer.cfg:

[EventServerInfo]
Port       = 55980
DBIP       = 127.0.0.1
DBPort     = 1433
DBID       = muonline
DBPW       = YourStrongPassword123
DBName     = MuOnline

[BloodCastle]
Enable     = 1
OpenTime01 = 00:00
OpenTime02 = 02:00
OpenTime03 = 04:00
OpenTime04 = 06:00
OpenTime05 = 12:00
OpenTime06 = 18:00
OpenTime07 = 21:00

[DevilSquare]
Enable     = 1
OpenTime01 = 01:00
OpenTime02 = 03:00
OpenTime03 = 09:00
OpenTime04 = 15:00
OpenTime05 = 20:00

Step 7 — Configure Drops and Monsters

Drops in Season 1-2 are configured via text files in GameServer/Data/Drop/:

ItemDropFromMonster.txt     # normal monster drops
ItemDropFromBoss.txt        # boss drops

Format for each line in ItemDropFromMonster.txt:

// MonsterID  ItemSection  ItemIndex  ItemLevel  DropRate(0-9999999)
1             0            0          0          50000    // Goblin drops Kris +0 with 0.5% chance

To adjust drops globally via SQL:

-- Increase drop rate of all excellent items by 50%
UPDATE MuOnline..T_ItemDropInfo
SET DropRate = DropRate * 1.5
WHERE ItemOption > 0
GO

Step 8 — Startup Sequence

Always start the components in this order:

Step 8.1 → Start SQL Server and confirm it is responding.

Step 8.2 → Run DataServer/DataServer.exe and wait for DataServer Start OK.

Step 8.3 → Run EventServer/EventServer.exe and wait for EventServer Start OK.

Step 8.4 → Run GameServer/GameServer.exe and wait for GameServer Start OK and Database Connect OK.

Step 8.5 → Run ConnectServer/ConnectServer.exe last.

Step 9 — Create an Administrator Account (GM)

Once the server is running, create the GM account directly in the database:

USE MuOnline
GO

-- Create administrator account
INSERT INTO MEMB_INFO (
    memb___id, memb__pwd, memb_name, sno__numb,
    post_code, addr_info, addr_deta, tel__numb,
    PhoneNumber, mail_addr, bloc_code, ctl1_code
)
VALUES (
    'admin', '12345678', 'Administrator', '00000000000',
    '00000', 'Admin', 'Admin', '00000000',
    '00000000000', '[email protected]', 0, 0
)
GO

-- Set GM permission (ctl1_code = 1 for standard GM)
UPDATE MEMB_INFO SET ctl1_code = 1 WHERE memb___id = 'admin'
GO

To promote a character to GM in-game (Season 1-2), edit the character table:

UPDATE MuOnline..Character
SET CtlCode = 1
WHERE Name = 'YourCharacterName'
GO

Step 10 — Verification and Troubleshooting

10.1 Check the logs for each component:

• GameServer/Log/GameServer.log — connection errors, data loading
• DataServer/Log/DataServer.log — character read/write errors
• ConnectServer/Log/ConnectServer.log — client connections

10.2 Test connectivity with the MU client by configuring Main.exe to point to the server IP on port 44405.

10.3 If the client shows "Cannot Connect to Server", run in CMD:

netstat -ano | findstr "44405"
netstat -ano | findstr "55901"

Both ports should appear as LISTENING.

Basic Firewall Configuration (Windows)

Run the following commands in CMD as Administrator to open the required ports:

netsh advfirewall firewall add rule name="MU ConnectServer" protocol=TCP dir=in localport=44405 action=allow
netsh advfirewall firewall add rule name="MU GameServer" protocol=TCP dir=in localport=55901 action=allow
netsh advfirewall firewall add rule name="MU DataServer" protocol=TCP dir=in localport=55551 action=allow
netsh advfirewall firewall add rule name="MU EventServer" protocol=TCP dir=in localport=55980 action=allow

With these steps completed, your MU Online Season 1-2 server will be ready to accept connections. Monitor the logs regularly during the first hours of operation to identify any configuration errors or instability.

Perguntas frequentes