
一步重置密码并连接
- 停服务
/soft/neo4j-community-2025.09.0/bin/neo4j stop
- 设定初始密码 (推荐自定义一个强密码,比如
Neo4!
)
/soft/neo4j-community-2025.09.0/bin/neo4j-admin dbms set-initial-password 'Neo5!'
- 如果返回 "password already set",继续执行第 3 步"清 auth 文件"。
- (仅当上一步报已设置时)清除旧认证文件后再设
仅影响用户认证信息,不影响图数据;适用于开发/测试环境。
rm -f /soft/neo4j-community-2025.09.0/data/dbms/auth /soft/neo4j-community-2025.09.0/bin/neo4j-admin dbms set-initial-password 'Neo45!'
- 启动服务
/soft/neo4j-community-2025.09.0/bin/neo4j start
- 浏览器连接
-
打开:
http://192.168.232.129:7474/browser/
-
Connect URL 里填:
bolt://192.168.232.129:7687
-
Username:
neo4j
-
Password:
Neo4j5!
(你刚设的)
看到 "Could not reach Neo4j" 时,先在 Windows PowerShell 测下端口通不通:
Test-NetConnection 192.168.232.129 -Port 7687
若不通,检查 VM 防火墙:
firewall-cmd --permanent --add-port=7687/tcp firewall-cmd --permanent --add-port=7474/tcp firewall-cmd --reload
连接项快速自检
-
neo4j.conf
里应有:server.default_listen_address=0.0.0.0 server.http.enabled=true server.http.listen_address=:7474 server.http.advertised_address=192.168.232.129:7474 server.bolt.enabled=true server.bolt.listen_address=:7687 server.bolt.advertised_address=192.168.232.129:7687 dbms.security.auth_enabled=true
-
端口监听:
ss -ltnp | grep -E '(:7474|:7687)'
按上面重置后,用 neo4j / 你新设的密码
登录就能进。
如果出现:
root@localhost conf\]# /soft/neo4j-community-2025.09.0/bin/neo4j-admin dbms set-initial-password 'Neo5!' Changed password for user 'neo4j'. IMPORTANT: this change will only take effect if performed before the database is started for the first time. 那条提示其实是 Neo4j 的标准输出: > `Changed password for user 'neo4j'. IMPORTANT: this change will only take effect if performed before the database is started for the first time.` 意思是「如果数据库已经启动过一次,这条命令不会生效」。 现在你可以按这个顺序把密码彻底改好并重新连上: *** ** * ** *** #### 🔧 1. 停 Neo4j ``` ``` `/soft/neo4j-community-2025.09.0/bin/neo4j stop ` #### 🔧 2. 删除旧认证文件 > 这一步会清除旧的 neo4j 账户密码,仅限开发环境用。 ``` ``` `rm -f /soft/neo4j-community-2025.09.0/data/dbms/auth ` #### 🔧 3. 重新设置初始密码 ``` ``` `/soft/neo4j-community-2025.09.0/bin/neo4j-admin dbms set-initial-password 'Neo45!' ` #### 🔧 4. 启动数据库 ``` ``` `/soft/neo4j-community-2025.09.0/bin/neo4j start ` #### 🔧 5. 浏览器连接 在宿主机打开 ``` ``` `http://192.168.232.129:7474/browser/ ` 然后在登录框里填: * **Connect URL** → `bolt://192.168.232.129:7687` * **Username** → `neo4j` * **Password** → `Neo45!` *** ** * ** *** #### ✅ 如果仍连不上 Bolt 1. 确认端口已开放: ``` ``` `ss -ltnp | grep 7687 ` 1. 宿主机测试: ``` ``` `Test-NetConnection 192.168.232.129 -Port 7687 ` 1. VM 内放行防火墙: ``` ``` `firewall-cmd --permanent --add-port=7687/tcp firewall-cmd --permanent --add-port=7474/tcp firewall-cmd --reload` 控制台显示 \[root@localhost conf\]# /soft/neo4j-community-2025.09.0/bin/neo4j stop Neo4j is not running. \[root@localhost conf\]# rm -f /soft/neo4j-community-2025.09.0/data/dbms/auth \[root@localhost conf\]# /soft/neo4j-community-2025.09.0/bin/neo4j-admin dbms set-initial-password 'Neo45!' Changed password for user 'neo4j'. IMPORTANT: this change will only take effect if performed before the database is started for the first time. 很好,认证文件已清空并设置了新初始密码。现在按下面两步完成登录: ### 1) 启动并自检 ``` ``` `/soft/neo4j-community-2025.09.0/bin/neo4j start ss -ltnp | grep -E '(:7474|:7687)' # 应看到 7474/7687 在 LISTEN tail -n 50 /soft/neo4j-community-2025.09.0/logs/neo4j.log ` ### 2) 通过 Browser 连接 在宿主机浏览器打开: ``` ``` `http://192.168.232.129:7474/browser/ ` 在连接框里: * **Connect URL** :`bolt://192.168.232.129:7687`(不要用 neo4j://) * **Username** :`neo4j` * **Password** :`Neo4j5!`(你刚设置的) > 若提示 "Could not reach Neo4j",在宿主机跑: > > * `Test-NetConnection 192.168.232.129 -Port 7687`(Windows) > > 在虚机上放行端口(如开启了 firewalld): > > ``` > > ``` > > `firewall-cmd --permanent --add-port=7474/tcp firewall-cmd --permanent --add-port=7687/tcp firewall-cmd --reload` 