从远程机器访问 Oracle Apex

Question

大家好，我已经在 Linux VM（google 云计算）上成功安装了 Oracle 11g Express 添加我有 sqlplus 工作，我可以查询数据。监听器也在工作。

但是由于 Linux 服务器没有 GUI，我无法尝试本地主机和外部机器连接被拒绝。

我的问题是：

1) Apex 是否预装在 Oracle XE 上，它曾经在任何地方都没有提及。

2) 如果服务器的 IP 地址是 123.123.123，我将使用什么 url 从远程机器访问 apex？我试过了

3)如何判断是服务器还是Oracle拒绝连接？

防火墙

 $ netstat -ant
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State      
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN     
tcp        0      0 127.0.0.1:25            0.0.0.0:*               LISTEN     
tcp        0      0 10.128.0.3:50776        169.254.169.254:80      ESTABLISHED
tcp        0      0 10.128.0.3:43548        10.128.0.3:1521         ESTABLISHED
tcp        0      0 10.128.0.3:50722        169.254.169.254:80      CLOSE_WAIT 
tcp        0      0 10.128.0.3:50814        169.254.169.254:80      ESTABLISHED
tcp        0      0 10.128.0.3:50774        169.254.169.254:80      ESTABLISHED
tcp        0     64 10.128.0.3:22           74.125.41.105:38312     ESTABLISHED
tcp6       0      0 :::40070                :::*                    LISTEN     
tcp6       0      0 :::8080                 :::*                    LISTEN     
tcp6       0      0 :::1521                 :::*                    LISTEN     
tcp6       0      0 :::22                   :::*                    LISTEN     
tcp6       0      0 ::1:25                  :::*                    LISTEN     
tcp6       0      0 10.128.0.3:1521         10.128.0.3:43548        ESTABLISHED

听众

 $ lsnrctl status

LSNRCTL for Linux: Version 11.2.0.2.0 - Production on 22-AUG-2017 02:59:51

Copyright (c) 1991, 2011, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC_FOR_XE)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 11.2.0.2.0 - Production
Start Date                22-AUG-2017 02:00:17
Uptime                    0 days 0 hr. 59 min. 33 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Default Service           XE
Listener Parameter File   /u01/app/oracle/product/11.2.0/xe/network/admin/listener.ora
Listener Log File         /u01/app/oracle/diag/tnslsnr/centossmallblockpro/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC_FOR_XE)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=centossmallblockpro.c.sincere-destiny-176110.internal)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=centossmallblockpro.c.sincere-destiny-176110.internal)(PORT=8080))(Presentation=HTTP)(Session=RAW))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
  Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "XE" has 1 instance(s).
  Instance "XE", status READY, has 1 handler(s) for this service...
Service "XEXDB" has 1 instance(s).
  Instance "XE", status READY, has 1 handler(s) for this service...
The command completed successfully

SQLPLUS 工作

    sqlplus

SQL*Plus: Release 11.2.0.2.0 Production on Tue Aug 22 03:03:51 2017

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Enter user-name: system
Enter password: 

Connected to:
Oracle Database 11g Express Edition Release 11.2.0.2.0 - 64bit Production

SQL> select * from dual;

D
-
X

.

Telnet XX.XXX.XXX.XX 8080

Telnet: Unable to connect to remote host: Connection timed out

Answer 1

1) 我认为 Oracle XE (11g) 带有 APEX 3.2 版。这是一个非常古老的 APEX 版本。按照有关如何删除此旧版本并从 otn.oracle.com 获取最新版本的说明进行操作。最新版本应该也适用于 11g XE。

2) 隧道

您可以创建一个从台式计算机到服务所在的端点服务器的 ssh 隧道运行。现在您可以从您的桌面环境 aka 访问远程机器上的服务。 sqlplus、SQL 开发人员、Firefox 等..

# Access Your Database Remotely Through an SSH Tunnel
# ssh -L [local port]:[database host]:[remote port] [username]@[remote host]
# console 1: 9998 is just an arbitrary port > 1024. Can be anything.
ssh -N -L 9998:10.128.0.3:1521 -i ~/.ssh/id_rsa user@35.184.136.98
# console 2:
sqlplus user/pwd@localhost:9998/XE 
# firefox:
http://localhost:9998/apex

Answer 2

Bjarte 对 1 和 2 的回答很好，但实际问题不是 Linux 防火墙，而是计算引擎防火墙。

我什至不知道它的存在，当你 select 打开 Http 的复选框时，它创建了一个 TCP:80 的规则，但我需要 TCP:8080.

这是为我解决问题的文章cant open port on google compute engine ...

从远程机器访问 Oracle Apex

Access Oracle Apex from remote machine

linux

oracle

oracle-apex

firewall