限制IP 访问 Oracle 的方法
一.?sqlnet.ora文件在$ORACLE_HOME/network/admin???????????????????????????????
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1.1?（1）TCP.VALIDNODE_CHECKING
Purpose
????????????Note:
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（2）TCP.EXCLUDED_NODES
Purpose
??????Syntax
??????Example
??????（3）TCP.INVITED_NODES
Purpose
??????Syntax
??????Example
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From：
http://download.oracle.com/docs/cd/E11882_01/network.112/e10835/sqlnet.htm#NETRF238
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1.2?[wangou@qs-test-web log]$ ifconfig eth0
eth0?????????????????????????????????????????????????????????????????????????????
1.2.1[wangou@qs-test-web log]$ sqlplus /nolog
SQL*Plus: Release 11.2.0.1.0 Production on D??ú?t 1?? 25 11:01:13 2011
Copyright (c) 1982, 2009, Oracle.?SQL> conn sys/admin@dave as sysdba;
SQL> select name from v$database;
NAME
---------
NEWCCS
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1.2.2?tcp.validnode_checking=yes
#允许访问的IP
tcp.invited_nodes=(#注意这里的DB#禁止访问的IP
tcp.excluded_nodes=(192.168.2.*)
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[wangou@qs-test-web log]$ sqlplus /nolog
SQL*Plus: Release 11.2.0.1.0 Production on D??ú?t 1?? 25 11:08:20 2011
Copyright (c) 1982, 2009, Oracle.?SQL> conn sys/admin@dave as sysdba;
ERROR:
ORA-12537: TNS: connection closed
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当IP[wangou@qs-test-web log]$ oerr tns 12537
12537, 00000, "TNS:connection closed"
// *Cause: "End of file" condition has been reached; partner has disconnected.
// *Action: None needed; this is an information message.
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1.2.3tcp.validnode_checking=yes
#允许访问的IP
tcp.invited_nodes=( daviddai,192.168.2.*)
#注意这里的DB#禁止访问的IP
tcp.excluded_nodes=(192.168.3.*)
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[wangou@qs-test-web admin]$ sqlplus system/admin@dave;
SQL*Plus: Release 11.2.0.1.0 Production onCopyright (c) 1982, 2009, Oracle.??
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
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SQL> select name from v$database;
NAME
---------
NEWCCS
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二.?
2.1create or replace trigger logon_audit
after logon on database
begin
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if ora_client_ip_address='192.168.2.245' or ora_client_ip_address='192.168.3.115' then
raise_application_error(-20001,'该用户不允许登录',false);
----抛出自定义的错误
end if;
end;
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注意：?
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2.2?SQL> conn dave/dave@dave;
ERROR:
ORA-00604: error occurred at recursive SQL level 1
ORA-20001:ORA-06512:?在?line 4
