< p >Oracle是眾所周知的關(guān)系型數(shù)據(jù)庫管理系統(tǒng),是企業(yè)級數(shù)據(jù)庫的首選之一。在Oracle中,4607端口扮演了非常重要的角色。它常常用于對Oracle數(shù)據(jù)庫執(zhí)行遠程管理操作,如啟動/停止數(shù)據(jù)庫、備份、恢復(fù)和性能監(jiān)測等。 p>
< p >下面是一些常見的使用例子: p>
< pre >
$ sqlplus sys/password as sysdba
SQL*Plus: Release 12.2.0.1.0 Production on Wed May 2 11:37:56 2018
Copyright (c) 1982, 2016, Oracle. All rights reserved.
Connected to:
Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production
SQL>EXEC DBMS_XDB.SETLISTENERLOCALACCESS(FALSE);
pre >
< p >在上面的例子中,我們使用了sqlplus命令來連接遠程Oracle數(shù)據(jù)庫。在連接過程中,我們指定了sys用戶的用戶名和密碼。在連接之后,我們可以使用SQL命令對數(shù)據(jù)庫進行操作,例如啟用/禁用本地訪問。 p>
< pre >
$ lsnrctl status
LSNRCTL for Linux: Version 12.2.0.1.0 - Production on Wed May 2 11:48:59 2018
Copyright (c) 1991, 2016, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=127.0.0.1)(PORT=1521)))
STATUS of the LISTENER
Alias listener
Version TNSLSNR for Linux: Version 12.2.0.1.0 - Production
Start Date 02-MAY-2018 09:24:30
Uptime 0 days 2 hr. 24 min. 28 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/oracle/product/12.2.0/dbhome_1/network/admin/listener.ora
Listener Log File /u01/app/oracle/diag/tnslsnr/db1/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
Services Summary...
Service "db1.example.com" has 1 instance(s).
Instance "db1", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0 state:ready
LOCAL SERVER
Service "db1XDB.example.com" has 1 instance(s).
Instance "db1", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0 state:ready
LOCAL SERVER
"XDB" established:0 refused:0 state:ready
LOCAL SERVER
The command completed successfully
pre >
< p >在上面的例子中,我們使用了lsnrctl命令來檢查當(dāng)前監(jiān)聽器(listener)的狀態(tài)。這個命令包括了大量信息,如監(jiān)聽器別名(Alias)、版本號(Version)以及一些正在運行的服務(wù)(Services)等。 p>
< pre >
$ rman target /
Recovery Manager: Release 12.2.0.1.0 - Production on Wed May 2 11:55:02 2018
Copyright (c) 1982, 2017, Oracle and/or its affiliates. All rights reserved.
connected to target database: ORCL (DBID=2003038586)
RMAN>backup database plus archivelog;
pre >
< p >在上面的例子中,我們使用了Oracle的備份和恢復(fù)工具rman來備份數(shù)據(jù)庫。通過使用4607端口,我們可以在遠程服務(wù)器上執(zhí)行這個命令。 p>
< p >盡管遠程數(shù)據(jù)庫管理可以為數(shù)據(jù)庫管理員提供便利,但是遠程連接也會給數(shù)據(jù)庫帶來安全隱患。因此,必須采取適當(dāng)?shù)陌踩胧﹣肀Wo數(shù)據(jù)庫的機密信息。 p>
< p >總之,4607端口在Oracle數(shù)據(jù)庫中扮演了非常重要的角色,它賦予了管理員強大的管理功能。在實踐中,我們可以通過各種方式使用這個端口,如遠程連接數(shù)據(jù)庫、備份和恢復(fù)數(shù)據(jù)等。只要我們采取適當(dāng)?shù)陌踩胧覀兙涂梢猿浞掷眠@個端口的強大功能。 p>
< p >下面是一些常見的使用例子: p>
< pre >
$ sqlplus sys/password as sysdba
SQL*Plus: Release 12.2.0.1.0 Production on Wed May 2 11:37:56 2018
Copyright (c) 1982, 2016, Oracle. All rights reserved.
Connected to:
Oracle Database 12c Enterprise Edition Release 12.2.0.1.0 - 64bit Production
SQL>EXEC DBMS_XDB.SETLISTENERLOCALACCESS(FALSE);
pre >
< p >在上面的例子中,我們使用了sqlplus命令來連接遠程Oracle數(shù)據(jù)庫。在連接過程中,我們指定了sys用戶的用戶名和密碼。在連接之后,我們可以使用SQL命令對數(shù)據(jù)庫進行操作,例如啟用/禁用本地訪問。 p>
< pre >
$ lsnrctl status
LSNRCTL for Linux: Version 12.2.0.1.0 - Production on Wed May 2 11:48:59 2018
Copyright (c) 1991, 2016, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=127.0.0.1)(PORT=1521)))
STATUS of the LISTENER
Alias listener
Version TNSLSNR for Linux: Version 12.2.0.1.0 - Production
Start Date 02-MAY-2018 09:24:30
Uptime 0 days 2 hr. 24 min. 28 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/oracle/product/12.2.0/dbhome_1/network/admin/listener.ora
Listener Log File /u01/app/oracle/diag/tnslsnr/db1/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
Services Summary...
Service "db1.example.com" has 1 instance(s).
Instance "db1", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0 state:ready
LOCAL SERVER
Service "db1XDB.example.com" has 1 instance(s).
Instance "db1", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0 state:ready
LOCAL SERVER
"XDB" established:0 refused:0 state:ready
LOCAL SERVER
The command completed successfully
pre >
< p >在上面的例子中,我們使用了lsnrctl命令來檢查當(dāng)前監(jiān)聽器(listener)的狀態(tài)。這個命令包括了大量信息,如監(jiān)聽器別名(Alias)、版本號(Version)以及一些正在運行的服務(wù)(Services)等。 p>
< pre >
$ rman target /
Recovery Manager: Release 12.2.0.1.0 - Production on Wed May 2 11:55:02 2018
Copyright (c) 1982, 2017, Oracle and/or its affiliates. All rights reserved.
connected to target database: ORCL (DBID=2003038586)
RMAN>backup database plus archivelog;
pre >
< p >在上面的例子中,我們使用了Oracle的備份和恢復(fù)工具rman來備份數(shù)據(jù)庫。通過使用4607端口,我們可以在遠程服務(wù)器上執(zhí)行這個命令。 p>
< p >盡管遠程數(shù)據(jù)庫管理可以為數(shù)據(jù)庫管理員提供便利,但是遠程連接也會給數(shù)據(jù)庫帶來安全隱患。因此,必須采取適當(dāng)?shù)陌踩胧﹣肀Wo數(shù)據(jù)庫的機密信息。 p>
< p >總之,4607端口在Oracle數(shù)據(jù)庫中扮演了非常重要的角色,它賦予了管理員強大的管理功能。在實踐中,我們可以通過各種方式使用這個端口,如遠程連接數(shù)據(jù)庫、備份和恢復(fù)數(shù)據(jù)等。只要我們采取適當(dāng)?shù)陌踩胧覀兙涂梢猿浞掷眠@個端口的強大功能。 p>