Home Database Mysql Tutorial oracle11g之ACL拙见

oracle11g之ACL拙见

Jun 07, 2016 pm 02:54 PM

错误样例(使用UTL_HTTP发送http请求时,报出如下错误): 原因: 1、Oracle允许使用几个PL/SQL API(UTL_TCP, UTL_SMTP, UTL_MAIL, UTL_HTTP和 UTL_INADDR)访问外部网络服务,这些API都使用TCP协议。 2、在Oracle 10g是通过一个基于用户是否被授予执行某

  错误样例(使用UTL_HTTP发送http请求时,报出如下错误):

  原因:

  1、Oracle允许使用几个PL/SQL API(UTL_TCP, UTL_SMTP, UTL_MAIL, UTL_HTTP和 UTL_INADDR)访问外部网络服务,这些API都使用TCP协议。

  2、在Oracle 10g是通过一个基于用户是否被授予执行某个包的许可的 on/off开关来实现的,Oracle 11g引入了细粒度访问网络服务.

  3、通过在XML DB 数据库中使用访问控制列表(ACL)来实现,允许控制哪个用户能够访问哪个网络资源,而不关心包的授权。

  解决办法:

  -- 查询网络访问控制列表 acl

?

1

Select * From  dba_network_acls

  -- 查询访问控制权限列表

?

1

Select * From  dba_network_acl_privileges

  -- 查询数据库中的用户,用户名大小写敏感

?

1

Select username From dba_users Where username Like '%ITS%'

  分配acl权限,执行如下sql语句:

?

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

begin

  dbms_network_acl_admin.create_acl (       -- 创建访问控制文件(ACL)

    acl         => 'utl_http.xml',          -- 文件名称

    description => 'HTTP Access',           -- 描述

    principal   => 'ITS',                   -- 授权或者取消授权账号,大小写敏感

    is_grant    => TRUE,                    -- 授权还是取消授权

    privilege   => 'connect',               -- 授权或者取消授权的权限列表

    start_date  => null,                    -- 起始日期

    end_date    => null                     -- 结束日期

  );

 

  dbms_network_acl_admin.add_privilege (    -- 添加访问权限列表项

    acl        => 'utl_http.xml',           -- 刚才创建的acl名称

    principal  => 'ITS',                    -- 授权或取消授权用户

    is_grant   => TRUE,                     -- 与上同

    privilege  => 'resolve',                -- 权限列表

    start_date => null,                    

    end_date   => null

  );

 

  dbms_network_acl_admin.assign_acl (       -- 该段命令意思是允许访问acl名为utl_http.xml下授权的用户,使用oracle网络访问包,所允许访问的目的主机,及其端口范围。

    acl        => 'utl_http.xml',

    host       => '100.1.2.1',              -- ip地址或者域名,填写:9000/hello与:9000/是会报host无效的

                                            -- 且建议使用ip地址或者使用域名,若用localhost,当oracle不是安装在本机上的情况下,会出现问题

    lower_port => 9000,                     -- 允许访问的起始端口号

    upper_port => Null                      -- 允许访问的截止端口号

  );

  commit;

end;

 

begin

  dbms_network_acl_admin.assign_acl (       -- 可以授权多个主机,或者多个主机的多个端口

    acl        => 'utl_http.xml',

    host       => '10.100.49.138',

    lower_port => 80,

    upper_port => NUll

  );

  commit;

end;

 

请求测试:

?

1

select utl_http.request('http://localhost:9000/hello?wsdl') From dual;

  若出现no listener,是因为授权主机时不能写localhost,应该写ip地址或者域名,如下图:

  移除acl和权限控制

  撤销分配acl到hostacl -- 与assign对应

?

1

2

3

4

5

6

7

8

9

10

11

12

begin

  dbms_network_acl_admin.unassign_acl(

 

    acl        => 'utl_http.xml',

    host       => '100.1.2.1',             

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

When might a full table scan be faster than using an index in MySQL? When might a full table scan be faster than using an index in MySQL? Apr 09, 2025 am 12:05 AM

Full table scanning may be faster in MySQL than using indexes. Specific cases include: 1) the data volume is small; 2) when the query returns a large amount of data; 3) when the index column is not highly selective; 4) when the complex query. By analyzing query plans, optimizing indexes, avoiding over-index and regularly maintaining tables, you can make the best choices in practical applications.

Explain InnoDB Full-Text Search capabilities. Explain InnoDB Full-Text Search capabilities. Apr 02, 2025 pm 06:09 PM

InnoDB's full-text search capabilities are very powerful, which can significantly improve database query efficiency and ability to process large amounts of text data. 1) InnoDB implements full-text search through inverted indexing, supporting basic and advanced search queries. 2) Use MATCH and AGAINST keywords to search, support Boolean mode and phrase search. 3) Optimization methods include using word segmentation technology, periodic rebuilding of indexes and adjusting cache size to improve performance and accuracy.

Can I install mysql on Windows 7 Can I install mysql on Windows 7 Apr 08, 2025 pm 03:21 PM

Yes, MySQL can be installed on Windows 7, and although Microsoft has stopped supporting Windows 7, MySQL is still compatible with it. However, the following points should be noted during the installation process: Download the MySQL installer for Windows. Select the appropriate version of MySQL (community or enterprise). Select the appropriate installation directory and character set during the installation process. Set the root user password and keep it properly. Connect to the database for testing. Note the compatibility and security issues on Windows 7, and it is recommended to upgrade to a supported operating system.

Difference between clustered index and non-clustered index (secondary index) in InnoDB. Difference between clustered index and non-clustered index (secondary index) in InnoDB. Apr 02, 2025 pm 06:25 PM

The difference between clustered index and non-clustered index is: 1. Clustered index stores data rows in the index structure, which is suitable for querying by primary key and range. 2. The non-clustered index stores index key values ​​and pointers to data rows, and is suitable for non-primary key column queries.

What are some popular MySQL GUI tools (e.g., MySQL Workbench, phpMyAdmin)? What are some popular MySQL GUI tools (e.g., MySQL Workbench, phpMyAdmin)? Mar 21, 2025 pm 06:28 PM

Article discusses popular MySQL GUI tools like MySQL Workbench and phpMyAdmin, comparing their features and suitability for beginners and advanced users.[159 characters]

How do you handle large datasets in MySQL? How do you handle large datasets in MySQL? Mar 21, 2025 pm 12:15 PM

Article discusses strategies for handling large datasets in MySQL, including partitioning, sharding, indexing, and query optimization.

MySQL: Simple Concepts for Easy Learning MySQL: Simple Concepts for Easy Learning Apr 10, 2025 am 09:29 AM

MySQL is an open source relational database management system. 1) Create database and tables: Use the CREATEDATABASE and CREATETABLE commands. 2) Basic operations: INSERT, UPDATE, DELETE and SELECT. 3) Advanced operations: JOIN, subquery and transaction processing. 4) Debugging skills: Check syntax, data type and permissions. 5) Optimization suggestions: Use indexes, avoid SELECT* and use transactions.

The relationship between mysql user and database The relationship between mysql user and database Apr 08, 2025 pm 07:15 PM

In MySQL database, the relationship between the user and the database is defined by permissions and tables. The user has a username and password to access the database. Permissions are granted through the GRANT command, while the table is created by the CREATE TABLE command. To establish a relationship between a user and a database, you need to create a database, create a user, and then grant permissions.

See all articles