发现监听进程监听8080和2100端口
--监听端口
[oracle@xifenfei ~]$ netstat -nap|grep tnslsnr
(Not all processes could be identified, non-owned process info
will not be shown, you would have to be root to see it all.)
tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN 29866/tnslsnr
tcp 0 0 0.0.0.0:1521 0.0.0.0:* LISTEN 29866/tnslsnr
tcp 0 0 0.0.0.0:2100 0.0.0.0:* LISTEN 29866/tnslsnr
--进程名称
[oracle@xifenfei ~]$ ps -ef|grep 29866
oracle 29866 1 0 00:20 pts/0 00:00:00 /u01/oracle/9.2.0/db_1/bin/tnslsnr LISTENER -inherit
查看监听状态
[oracle@xifenfei ~]$ lsnrctl status
LSNRCTL for Linux: Version 9.2.0.4.0 - Production on 08-MAY-2012 00:26:50
Copyright (c) 1991, 2002, Oracle Corporation. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=xifenfei)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 9.2.0.4.0 - Production
Start Date 08-MAY-2012 00:20:47
Uptime 0 days 0 hr. 6 min. 3 sec
Trace Level off
Security OFF
SNMP OFF
Listener Parameter File /u01/oracle/9.2.0/db_1/network/admin/listener.ora
Listener Log File /u01/oracle/9.2.0/db_1/network/log/listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=xifenfei)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=xifenfei)(PORT=8080))(Presentation=HTTP)(Session=RAW))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=xifenfei)(PORT=2100))(Presentation=FTP)(Session=RAW))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "xffXDB" has 1 instance(s).
Instance "xff", status READY, has 1 handler(s) for this service...
Service "xifenfei" has 2 instance(s).
Instance "xff", status UNKNOWN, has 1 handler(s) for this service...
Instance "xff", status READY, has 1 handler(s) for this service...
The command completed successfully
--从这里可以看出oracle的listener确实监听了8080和2100端口
查看listener.ora文件
[oracle@xifenfei ~]$ more /u01/oracle/9.2.0/db_1/network/admin/listener.ora
# LISTENER.ORA Network Configuration File: /u01/oracle/9.2.0/db_1/network/admin/listener.ora
# Generated by Oracle configuration tools.
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = xifenfei)(PORT = 1521))
)
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
)
)
)
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /u01/oracle/9.2.0/db_1)
(PROGRAM = extproc)
)
(SID_DESC =
(GLOBAL_DBNAME = xifenfei)
(ORACLE_HOME = /u01/oracle/9.2.0/db_1)
(SID_NAME = xff)
)
)
--从中确认未监听8080和2100端口,看来这两个端口是在动态注册监听的时候加入进去的.
--我们知道oracle的xdb组件可能会启用http和ftp功能,这两个功能可能会开启响应端口,我们分析xdb组件.
查看xdb组件是否工作正常
SQL> select
2 comp_name, status, version from
3 DBA_REGISTRY where
4 comp_name='Oracle XML Database';
COMP_NAME STATUS VERSION
------------------------------ ---------------------- ----------
Oracle XML Database VALID 9.2.0.4.0
SQL> select count(*) from dba_objects where owner='XDB' and status='INVALID';
COUNT(*)
----------
0
SQL> show parameter dispatchers;
NAME TYPE VALUE
------------------------------------ ---------------------- ------------------------------
dispatchers string (PROTOCOL=TCP) (SERVICE=xffXDB)
max_dispatchers integer 5
mts_dispatchers string (PROTOCOL=TCP) (SERVICE=xffXDB)
mts_max_dispatchers integer 5
--查询证明xdb组件应该工作正常
查看xdb中ftp和http启动相关端口
SQL> select dbms_xdb.GETFTPPORT() from dual;
select dbms_xdb.GETFTPPORT() from dual
*
ERROR at line 1:
ORA-00904: "DBMS_XDB"."GETFTPPORT": invalid identifier
SQL> select dbms_xdb.GETHTTPPORT() from dual;
select dbms_xdb.GETHTTPPORT() from dual
*
ERROR at line 1:
ORA-00904: "DBMS_XDB"."GETHTTPPORT": invalid identifier
--9i中为提供上述查询端口的相关程序.
SQL> set long 10000
SQL> set pagesize 0
SQL> SELECT dbms_xdb.cfg_get FROM dual;
--从中找到类此这样记录,确实ftp启用2100端口,http启用8080端口
<ftpconfig>
<ftp-port>2100</ftp-port>
<ftp-listener>local_listener</ftp-listener>
<ftp-protocol>tcp</ftp-protocol>
<session-timeout>6000</session-timeout>
</ftpconfig>
<httpconfig>
<http-port>8080</http-port>
<http-listener>local_listener</http-listener>
<http-protocol>tcp</http-protocol>
<session-timeout>6000</session-timeout>
<server-name>XDB HTTP Server</server-name>
</httpconfig>
--到这里我们可以确定是由于xdb组件中的ftp和http功能自动注册导致监听了2100和8080端口
修改xdb中监听ftp和http端口
SQL> call dbms_xdb.cfg_update(updateXML(dbms_xdb.cfg_get(),'
2 /xdbconfig/sysconfig/protocolconfig/httpconfig/http-port/text()',8888));
Call completed.
SQL> call dbms_xdb.cfg_update(updateXML(dbms_xdb.cfg_get(),
2 '/xdbconfig/sysconfig/protocolconfig/ftpconfig/ftp-port/text()',2222));
Call completed.
SQL> commit;
Commit complete.
SQL> exec dbms_xdb.cfg_refresh;
PL/SQL procedure successfully completed.
SQL> exit
Disconnected from Oracle9i Enterprise Edition Release 9.2.0.4.0 - Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production
[oracle@xifenfei ~]$ lsnrctl status
LSNRCTL for Linux: Version 9.2.0.4.0 - Production on 08-MAY-2012 00:57:13
Copyright (c) 1991, 2002, Oracle Corporation. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=xifenfei)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 9.2.0.4.0 - Production
Start Date 08-MAY-2012 00:20:47
Uptime 0 days 0 hr. 36 min. 26 sec
Trace Level off
Security OFF
SNMP OFF
Listener Parameter File /u01/oracle/9.2.0/db_1/network/admin/listener.ora
Listener Log File /u01/oracle/9.2.0/db_1/network/log/listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=xifenfei)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=xifenfei)(PORT=8888))(Presentation=HTTP)(Session=RAW))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=xifenfei)(PORT=2222))(Presentation=FTP)(Session=RAW))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "xffXDB" has 1 instance(s).
Instance "xff", status READY, has 1 handler(s) for this service...
Service "xifenfei" has 2 instance(s).
Instance "xff", status UNKNOWN, has 1 handler(s) for this service...
Instance "xff", status READY, has 1 handler(s) for this service...
The command completed successfully
xdb中ftp和http监听
SQL> alter system reset dispatchers scope=spfile sid='*';
System altered.
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup
ORACLE instance started.
Total System Global Area 353441008 bytes
Fixed Size 451824 bytes
Variable Size 184549376 bytes
Database Buffers 167772160 bytes
Redo Buffers 667648 bytes
Database mounted.
Database opened.
SQL> show parameter dispatchers;
NAME TYPE VALUE
------------------------------------ ---------------------- ---------
dispatchers string
max_dispatchers integer 5
mts_dispatchers string
mts_max_dispatchers integer 5
--SELECT dbms_xdb.cfg_get FROM dual;中信息
<ftpconfig>
<ftp-port>2222</ftp-port>
<ftp-listener>local_listener</ftp-listener>
<ftp-protocol>tcp</ftp-protocol>
<session-timeout>6000</session-timeout>
</ftpconfig>
<httpconfig>
<http-port>8888</http-port>
<http-listener>local_listener</http-listener>
<http-protocol>tcp</http-protocol>
<session-timeout>6000</session-timeout>
<server-name>XDB HTTP Server</server-name>
</httpconfig>
[oracle@xifenfei dbs]$ lsnrctl status
LSNRCTL for Linux: Version 9.2.0.4.0 - Production on 08-MAY-2012 01:10:07
Copyright (c) 1991, 2002, Oracle Corporation. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=xifenfei)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 9.2.0.4.0 - Production
Start Date 08-MAY-2012 00:20:47
Uptime 0 days 0 hr. 49 min. 20 sec
Trace Level off
Security OFF
SNMP OFF
Listener Parameter File /u01/oracle/9.2.0/db_1/network/admin/listener.ora
Listener Log File /u01/oracle/9.2.0/db_1/network/log/listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=xifenfei)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "xifenfei" has 2 instance(s).
Instance "xff", status UNKNOWN, has 1 handler(s) for this service...
Instance "xff", status READY, has 1 handler(s) for this service...
The command completed successfully
--证明已经关闭了xdb 组件的ftp/http监听
xdb组件中的ftp/http监听在9i数据库中,只要你安装了xdb组件,会自动启用这功能.
在10g及其11g中默认不启用.所以为了你的数据库安全,如果不使用这些功能,建议手工关闭
