Amazon EC2 上的 Neo4j - 无法从远程机器访问答案

【问题标题】：Neo4j on Amazon EC2 - Not accessible from remote machinesAmazon EC2 上的 Neo4j - 无法从远程机器访问
【发布时间】：2014-02-24 20:52:23
【问题描述】：

我目前正在尝试使用 RHEL 在 EC2 实例上正确安装 neo4j。目前我无法从浏览器访问端口 7474 上的服务器以查看 neo4j 网络管理员或浏览器。截至目前，我可以成功访问 localhost:7474，这让我相信这是远程连接的某种程度的访问问题。

到目前为止我做了什么：

在 EC2 实例上安装了 Oracle Java 1.7
已安装 neo4j-community-2.0.1
将 org.neo4j.server.webserver.address=0.0.0.0 添加到 neo4j-server.properties
在 EC2 UI 中为端口 7474 添加了自定义 TCP 规则，允许 0.0.0.0/0
将 7474 添加到 iptables
重启实例
运行 neo4j 开始

查看 netstat，我看到进程正在侦听端口 7474，因此我不确定还有什么会阻止外部流量访问端口 7474 上服务器的公共 EC2 DNS。

控制台日志

2014-02-24 20:25:24.572+0000 INFO  [API] Setting startup timeout to: 120000ms based on -1
2014-02-24 20:25:27.226+0000 INFO  [API] Successfully started database
2014-02-24 20:25:28.924+0000 INFO  [API] Starting HTTP on port :7474 with 10 threads available
2014-02-24 20:25:29.387+0000 INFO  [API] Enabling HTTPS on port :7473
2014-02-24 20:25:30.077+0000 INFO  [API] Mounted discovery module at [/]
2014-02-24 20:25:30.088+0000 INFO  [API] Mounted REST API at [/db/data/]
2014-02-24 20:25:30.097+0000 INFO  [API] Mounted management API at [/db/manage/]
2014-02-24 20:25:30.099+0000 INFO  [API] Mounted webadmin at [/webadmin]
2014-02-24 20:25:30.100+0000 INFO  [API] Mounted Neo4j Browser at [/browser]
2014-02-24 20:25:30.202+0000 INFO  [API] Mounting static content at [/webadmin] from [webadmin-html]
2014-02-24 20:25:30.326+0000 INFO  [API] Mounting static content at [/browser] from [browser]
15:25:30.328 [main] WARN  o.e.j.server.handler.ContextHandler - o.e.j.s.ServletContextHandler@164cc9b7{/,null,null} contextPath ends with /
15:25:30.328 [main] WARN  o.e.j.server.handler.ContextHandler - Empty contextPath
15:25:30.331 [main] INFO  org.eclipse.jetty.server.Server - jetty-9.0.5.v20130815
15:25:30.387 [main] INFO  o.e.j.server.handler.ContextHandler - Started o.e.j.s.h.MovedContextHandler@5e9c3ce7{/,null,AVAILABLE}
15:25:30.780 [main] INFO  o.e.j.w.StandardDescriptorProcessor - NO JSP Support for /webadmin, did not find org.apache.jasper.servlet.JspServlet
15:25:30.802 [main] INFO  o.e.j.server.handler.ContextHandler - Started o.e.j.w.WebAppContext@488a358e{/webadmin,jar:file:/opt/neo4j-community-2.0.1/system/lib/neo4j-server-2.0.1-static-web.jar!/webadmin-html,AVAILABLE}
15:25:31.964 [main] INFO  o.e.j.server.handler.ContextHandler - Started o.e.j.s.ServletContextHandler@750e589{/db/manage,null,AVAILABLE}
15:25:32.759 [main] INFO  o.e.j.server.handler.ContextHandler - Started o.e.j.s.ServletContextHandler@1480606f{/db/data,null,AVAILABLE}
15:25:32.787 [main] INFO  o.e.j.w.StandardDescriptorProcessor - NO JSP Support for /browser, did not find org.apache.jasper.servlet.JspServlet
15:25:32.789 [main] INFO  o.e.j.server.handler.ContextHandler - Started o.e.j.w.WebAppContext@3f773163{/browser,jar:file:/opt/neo4j-community-2.0.1/system/lib/neo4j-browser-2.0.1.jar!/browser,AVAILABLE}
15:25:33.047 [main] INFO  o.e.j.server.handler.ContextHandler - Started o.e.j.s.ServletContextHandler@164cc9b7{/,null,AVAILABLE}
15:25:33.078 [main] INFO  o.e.jetty.server.ServerConnector - Started ServerConnector@14cfe45e{HTTP/1.1}{0.0.0.0:7474}
15:25:34.498 [main] INFO  o.e.jetty.server.ServerConnector - Started ServerConnector@44590060{SSL-HTTP/1.1}{0.0.0.0:7473}
2014-02-24 20:25:34.500+0000 INFO  [API] Remote interface ready and available at [http://0.0.0.0:7474/]

neo4j.0.0.log：

Feb 24, 2014 3:25:24 PM org.neo4j.server.logging.Logger log
INFO: Setting startup timeout to: 120000ms based on -1
Feb 24, 2014 3:25:27 PM org.neo4j.server.logging.Logger log
INFO: Successfully started database
Feb 24, 2014 3:25:28 PM org.neo4j.server.logging.Logger log
INFO: Starting HTTP on port :7474 with 10 threads available
Feb 24, 2014 3:25:29 PM org.neo4j.server.logging.Logger log
INFO: Enabling HTTPS on port :7473
Feb 24, 2014 3:25:30 PM org.neo4j.server.logging.Logger log
INFO: Mounted discovery module at [/]
Feb 24, 2014 3:25:30 PM org.neo4j.server.logging.Logger log
INFO: Mounted REST API at [/db/data/]
Feb 24, 2014 3:25:30 PM org.neo4j.server.logging.Logger log
INFO: Mounted management API at [/db/manage/]
Feb 24, 2014 3:25:30 PM org.neo4j.server.logging.Logger log
INFO: Mounted webadmin at [/webadmin]
Feb 24, 2014 3:25:30 PM org.neo4j.server.logging.Logger log
INFO: Mounted Neo4j Browser at [/browser]
Feb 24, 2014 3:25:30 PM org.neo4j.server.logging.Logger log
INFO: Mounting static content at [/webadmin] from [webadmin-html]
Feb 24, 2014 3:25:30 PM org.neo4j.server.logging.Logger log
INFO: Mounting static content at [/browser] from [browser]
Feb 24, 2014 3:25:31 PM com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
INFO: Initiating Jersey application, version 'Jersey: 1.9 09/02/2011 11:17 AM'
Feb 24, 2014 3:25:31 PM com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
INFO: Initiating Jersey application, version 'Jersey: 1.9 09/02/2011 11:17 AM'
Feb 24, 2014 3:25:32 PM com.sun.jersey.server.impl.application.WebApplicationImpl _initiate
INFO: Initiating Jersey application, version 'Jersey: 1.9 09/02/2011 11:17 AM'
Feb 24, 2014 3:25:34 PM org.neo4j.server.logging.Logger log
INFO: Remote interface ready and available at [http://0.0.0.0:7474/]

【问题讨论】：

我遇到了完全相同的问题..我可以从机器上连接但不能从外部连接..

标签： java amazon-web-services amazon-ec2 neo4j rhel

【解决方案1】：

您的 EC2 实例是否属于 VPC 中的安全组？作为一种故障排除技术 - 您可以尝试将 nginx 作为执行 807474 的代理，看看这是否可以让您在解决问题时至少可以访问它...

【讨论】：

【解决方案2】：

我遇到了完全相同的问题，结果证明这是由 EC2 中的安全组管理方式造成的。基本上我必须转到“网络接口”，选择“操作”，然后选择“更改安全组”，然后添加我新创建的安全组。

【讨论】：