linux - 从远程机器访问 Oracle Apex

Question

大家好，我已经在 Linux VM(谷歌云计算)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 是否预装在它曾经但未在任何地方提及的 Oracle XE 上。

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

• http://123.123.123:8080/apex/
• http://123.123.123/apex/
• https://123.123.123:8080/apex/

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。按照说明如何删除此旧版本并从 otn.oracle.com 获取最新版本.最新版本应该也适用于 11g XE。

2)隧道

您可以创建从桌面计算机到运行服务的端点服务器的 ssh 隧道。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 Developer、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