Home Database Mysql Tutorial Oracle 11g下UTL_TCP包居然用不通了调研

Oracle 11g下UTL_TCP包居然用不通了调研

Jun 07, 2016 pm 05:02 PM

今天切换到Oracle11g下后,接着使用UTL_TCP与服务程序进行数据交互时,居然报出个ACL访问控制的问题,幸亏以前还有过些网络的基础

今天切换到Oracle11g下后,接着使用UTL_TCP与服务程序进行数据交互时,居然报出个ACL访问控制的问题,幸亏以前还有过些网络的基础,还知道ACL是个什么东西,,

而在Oracle11g下为了加强网络访问的安全性,对ACL进行了一个软的实现。下面就如何突破ACL这一层,进行了Oracle有关DBMS_NETWORK_ACL_ADMIN进行调研,下面是一些总结:

--ACL使用调研
关于让DBCoffer有关执行权限参考如下:
--用来获取主机IP或主机名
BEGIN
  DBMS_NETWORK_ACL_ADMIN.create_acl (
    acl          => 'coffer_acl_file.xml', 
    description  => 'A test of the ACL functionality',
    --参数为:一个用户或者是一个角色
    principal    => 'COFFER',
    is_grant     => TRUE, 
    privilege    => 'resolve'
    --start_date   => SYSTIMESTAMP,
    --end_date     => NULL
    );
  COMMIT;
END;
/
--让用户能够访问外网的相关端口与IP
BEGIN
  DBMS_NETWORK_ACL_ADMIN.add_privilege ( 
    acl         => 'coffer_acl_file.xml', 
    --参数为:一个用户或者是一个角色
    principal   => 'COFFER',
    is_grant    => TRUE, 
    privilege   => 'connect'
    --position    => NULL, 
    --start_date  => NULL,
    --end_date    => NULL
    );
  COMMIT;
END;
/
--对这个访问控制列表指定一条规则
BEGIN
  DBMS_NETWORK_ACL_ADMIN.assign_acl (
    acl         => 'coffer_acl_file.xml',
    host        => '*'); 
  COMMIT;
END;
/


--当升级一个DBCoffer用户时需要执行
BEGIN
  DBMS_NETWORK_ACL_ADMIN.add_privilege ( 
    acl         => 'coffer_acl_file.xml', 
    --参数为:一个用户或者是一个角色
    principal   => 'TEST',
    is_grant    => TRUE, 
    privilege   => 'resolve'
    --position    => NULL, 
    --start_date  => NULL,
    --end_date    => NULL
    );
  COMMIT;
END;
/


BEGIN
  DBMS_NETWORK_ACL_ADMIN.add_privilege ( 
    acl         => 'coffer_acl_file.xml', 
    --参数为:一个用户或者是一个角色
    principal   => 'TEST',
    is_grant    => TRUE, 
    privilege   => 'connect'
    --position    => NULL, 
    --start_date  => NULL,
    --end_date    => NULL
    );
  COMMIT;
END;
/


--当撤销一个DBCoffer用户时,需要执行
BEGIN
  DBMS_NETWORK_ACL_ADMIN.delete_privilege ( 
    acl         => 'coffer_acl_file.xml', 
    --参数为:一个用户或者是一个角色
    principal   => 'TEST',
    is_grant    => TRUE, 
    privilege   => 'resolve');
  COMMIT;
END;
/


BEGIN
  DBMS_NETWORK_ACL_ADMIN.delete_privilege ( 
    acl         => 'coffer_acl_file.xml', 
    --参数为:一个用户或者是一个角色
    principal   => 'TEST',
    is_grant    => TRUE, 
    privilege   => 'connect');
  COMMIT;
END;



--删除一个访问控制列表
BEGIN
  DBMS_NETWORK_ACL_ADMIN.drop_acl ( 
    acl         => 'coffer_acl_file.xml');
  COMMIT;
END;
/

linux

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.

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.

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.

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.

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.

Can mysql and mariadb coexist Can mysql and mariadb coexist Apr 08, 2025 pm 02:27 PM

MySQL and MariaDB can coexist, but need to be configured with caution. The key is to allocate different port numbers and data directories to each database, and adjust parameters such as memory allocation and cache size. Connection pooling, application configuration, and version differences also need to be considered and need to be carefully tested and planned to avoid pitfalls. Running two databases simultaneously can cause performance problems in situations where resources are limited.

Explain different types of MySQL indexes (B-Tree, Hash, Full-text, Spatial). Explain different types of MySQL indexes (B-Tree, Hash, Full-text, Spatial). Apr 02, 2025 pm 07:05 PM

MySQL supports four index types: B-Tree, Hash, Full-text, and Spatial. 1.B-Tree index is suitable for equal value search, range query and sorting. 2. Hash index is suitable for equal value searches, but does not support range query and sorting. 3. Full-text index is used for full-text search and is suitable for processing large amounts of text data. 4. Spatial index is used for geospatial data query and is suitable for GIS applications.

See all articles