指定的数据库用户/密码组合被拒: [08S01][461] [InterSystems IRIS JDBC] Communication link failure: Access Denied [08S01][461] Access Denied

主要问题：
默认安装后，有没有默认用户名，密码？远程jdbc连接报错，麻烦解答一下，谢谢
[InterSystems IRIS JDBC] Communication link failure: Access Denied [08S01][461] Access Denied

创建用户：
addgroup iris
useradd -g iris -d "/home/iris" -m -s "/bin/bash" iris
passwd iris

安装过程：
root@baec-ThinkPad-E480:/data/IRIS_Community-2021.2.0.651.0-lnxubuntu1804x64# ./irisinstall

Your system type is 'Ubuntu LTS (x64)'.

Enter instance name : IRIS

Enter a destination directory for the new instance.
Directory: /data

Select installation type.
1) Development - Install InterSystems IRIS server and all language bindings
2) Server only - Install InterSystems IRIS server
3) Custom
Setup type ?

How restrictive do you want the initial Security settings to be?
"Minimal" is the least restrictive, "Locked Down" is the most secure.
1) Minimal
2) Normal
3) Locked Down
Initial Security settings ?

What group should be allowed to start and stop
this instance? iris

Do you want to install IRIS Unicode support ?

InterSystems IRIS did not detect a license key file

Do you want to enter a license key ? no

Please review the installation options:

Instance name: IRIS
Destination directory: /data
InterSystems IRIS version to install: 2021.2.0.651.0com
Installation type: Development
Unicode support: Y
Initial Security settings: Minimal
User who owns instance: root
Group allowed to start and stop instance: iris
Effective group for InterSystems IRIS processes: irisusr
Effective user for InterSystems IRIS SuperServer: irisusr
SuperServer port: 1972
WebServer port: 52773
JDBC Gateway port: 53773
Web Gateway: using built-in web server

Not installing IntegratedML

Confirm InterSystems IRIS installation ?

Starting installation
Starting up InterSystems IRIS for loading...
../bin/irisinstall -s . -B -c c -C /data/iris.cpf*IRIS -W 1 -g2
Starting Control Process
Allocated 254MB shared memory: 32MB global buffers, 80MB routine buffers
Creating a WIJ file to hold 32 megabytes of data
IRIS startup successful.
System locale setting is 'zh_CN.UTF-8'
This copy of InterSystems IRIS has been licensed for use exclusively by:
InterSystems IRIS Community
Copyright (c) 1986-2022 by InterSystems Corporation
Any other use is a violation of your license agreement

^^/data/mgr/>

^^/data/mgr/>
Start of IRIS initialization
Loading system routines
Updating system TEMP and LOCALDATA databases
Installing National Language support

Setting IRISTEMP default collation to IRIS standard (5)
Loading system classes
Updating Security database
Loading system source code
Building system indices
Updating Audit database
Updating Journal directory
Updating User database
Updating Interoperability databases
Scheduling inventory scan
IRIS initialization complete

See the iboot.log file for a record of the installation.

Starting up InterSystems IRIS...
Once this completes, users may access InterSystems IRIS
Starting IRIS
Using 'iris.cpf' configuration file

Starting Control Process
Global buffer setting requires attention. Auto-selected 25% of total memory.
Allocated 2420MB shared memory: 1965MB global buffers, 196MB routine buffers
Creating a WIJ file to hold 99 megabytes of data
This copy of InterSystems IRIS has been licensed for use exclusively by:
InterSystems IRIS Community
Copyright (c) 1986-2022 by InterSystems Corporation
Any other use is a violation of your license agreement

You can point your browser to http://baec-ThinkPad-E480:52773/csp/sys/UtilHome.csp
to access the management portal.

Installation completed successfully

启动实例：
root@baec-ThinkPad-E480:/data# iris start iris
IRIS is already up!

查看信息：
root@baec-ThinkPad-E480:/data# iris list

Configuration 'IRIS' (default)
directory: /data
versionid: 2021.2.0.651.0com
datadir: /data
conf file: iris.cpf (SuperServer port = 1972, WebServer = 52773)
status: running, since Tue Mar 29 17:00:13 2022
state: ok
product: InterSystems IRIS

连接信息：
ip：x.x.x.x
端口：1972
指定数据库：user
用户：_SYSTEM
密码：system

连接报错信息：
指定的数据库用户/密码组合被拒: [08S01][461] [InterSystems IRIS JDBC] Communication link failure: Access Denied [08S01][461] Access Denied