Oracle 数据库 11g 中的访问控制列表 (ACL) 拒绝了网络访问

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时间:2020-09-09 01:07:06  来源:igfitidea点击:

Network access denied by access control list (ACL) in Oracle Database 11g

oracleplsqloracle11gora-24247

提问by K.I

Recently we have switched from Oracle 10g to 11g, and only now I noticed that my mailing function does not work, I now get an error:

最近我们从 Oracle 10g 切换到 11g,直到现在我才发现我的邮件功能不起作用,我现在收到一个错误:

ORA-24247: network access denied by access control list (ACL)

So I did a bit of googling and was able to figure out that a new feature in Oracle 11g is now restricting users from using certain packages including utl_smtp. Because I am looking for a quick solution I did not read Oracle documentation, but instead I went looking for easier solutions and came across this tutorial:

因此,我进行了一些谷歌搜索,发现 Oracle 11g 中的一个新特性现在限制用户使用某些包,包括 utl_smtp。因为我正在寻找一个快速的解决方案,所以我没有阅读 Oracle 文档,而是寻找更简单的解决方案并遇到了本教程:

https://www.pythian.com/blog/setting-up-network-acls-in-oracle-11g-for-dummies/

I messed around with it a little bit, but because I did not know any better I think I added two seperate configuration .xml files. So first part of my question is - HOW DO I REMOVE IT?

我把它弄乱了一点,但因为我不知道更好,我想我添加了两个单独的配置 .xml 文件。所以我的问题的第一部分是 - 我如何删除它?

Second question is:

第二个问题是:

After adding some grants to my user I try to test to see if it worked, but I soon realised it did not:

在向我的用户添加一些赠款后,我尝试测试它是否有效,但我很快意识到它没有:

  SELECT DECODE(
         DBMS_NETWORK_ACL_ADMIN.check_privilege('netacl.xml', 'TEST1', 'connect'),
         1, 'GRANTED', 0, 'DENIED', NULL) privilege 
FROM dual;

Returns:

返回:

PRIVILE
-------
DENIED

WHY?(THIS HAS BEEN SORTED)

为什么?(已排序)

Third part of the question - after reading it was denied I try to fix it like:

问题的第三部分 - 阅读后被拒绝,我尝试修复它:

BEGIN
  DBMS_NETWORK_ACL_ADMIN.ADD_PRIVILEGE('netacl.xml' ,'TEST1', TRUE, 'connect');
END;

But that gives me an error:

但这给了我一个错误:

Ora19279 - XQuery dynamic type mismatch.....(more text meaning nothing to me).

WHY?(I FIGURED OUT, THAT ERROR HAPPENS WHEN YOU GRANT SAME PERMISSION TO SAME USER SECOND TIME)

为什么?(我发现,当您第二次向同一用户授予相同权限时会发生该错误)

UPDATE

更新

I have followed the suggested answer by kevinsky below and have learned quite a bit in the process, however I still have a problem. I still get the ORA-24247: network access denied by access control list (ACL). Because I did everything else as suggested, I am starting to think that the problem could be that first configuration file which I added, but cannot remove now because I cannot remember its name. If anyone can help me I would appreciate that very much.

我遵循了下面 kevinsky 的建议答案,并在此过程中学到了很多东西,但是我仍然遇到问题。我仍然收到 ORA-24247: network access denied by access control list (ACL)。因为我按照建议做了所有其他事情,所以我开始认为问题可能是我添加的第一个配置文件,但现在无法删除,因为我不记得它的名字。如果有人可以帮助我,我将不胜感激。

RESULTS OF(I was trying out a few different things so):

结果(我尝试了一些不同的东西):

select * from dba_network_acls;

Returns

退货

*                              | 25 | 25 | /sys/acls/utl_smtp.xml| ACLID...
myservername.com               | 25 | 25 | /sys/acls/utl_smtp.xml| ACLID...
myDBName                       | 25 | 25 | /sys/acls/utl_smtp.xml| ACLID...
mailServerDomainName           | 25 | 25 | /sys/acls/utl_smtp.xml| ACLID...
mailserver.myDomain.local      | 25 | 25 | /sys/acls/utl_smtp.xml| ACLID...

回答by kevinsky

I did this upgrade and it was hours of work. It all has to be redone differently for version 12. Every procedure call must have a commit. The general idea is that you create an access,add details, grant privileges. You must know:

我做了这个升级,这是几个小时的工作。对于版本 12,这一切都必须以不同的方式重做。每个过程调用都必须有一个提交。总体思路是创建访问权限、添加详细信息、授予权限。你必须知道:

  • your mailserver name and port
  • whether you need a user and password to access it (probably not)
  • the user who will be calling the mail package, easier if they own the mail package too
  • 您的邮件服务器名称和端口
  • 您是否需要用户和密码才能访问它(可能不需要)
  • 将调用邮件包的用户,如果他们也拥有邮件包,则更容易
/*create the access permission to connect*/

BEGIN

  DBMS_NETWORK_ACL_ADMIN.create_acl (
    acl          => 'utl_smtp.xml', 
    description  => 'access to smtp email',
    principal    => 'YourUser',
    is_grant     => TRUE, 
    privilege    => 'connect',
    start_date   => SYSTIMESTAMP,
    end_date     => NULL);

  COMMIT;

END;

--add the privilege to resolve names

BEGIN

  DBMS_NETWORK_ACL_ADMIN.add_privilege (
    acl          => 'utl_smtp.xml', 
    principal    => 'YourUser',
    is_grant     => TRUE, 
    privilege    => 'resolve');

  COMMIT;

END;

--assign your mailserver

BEGIN

  DBMS_NETWORK_ACL_ADMIN.assign_acl (
    acl => 'utl_smtp.xml',
    host => 'mailserver.YourDomain.local', 
    lower_port => 25,
    upper_port => NULL); 
    commit;

END;


  BEGIN

  DBMS_NETWORK_ACL_ADMIN.assign_acl (
    acl => 'utl_smtp.xml',
    host => 'YourDBName', 
    lower_port => 25,
    upper_port => NULL); 

  COMMIT;

  END;

  --more housekeeping

  alter system set smtp_out_server = 'mailserver.YourDomain.local:25' scope = both;

 --make sure the user can access the smtp packages

 GRANT EXECUTE ON UTL_TCP TO YourUser;
 GRANT EXECUTE ON UTL_SMTP TO YourUser;
 GRANT EXECUTE ON UTL_MAIL TO YourUser;

--check your work

select * from dba_network_acls;

--verify permissions for your user

SELECT DECODE(
DBMS_NETWORK_ACL_ADMIN.CHECK_PRIVILEGE(
   'utl_smtp.xml', 'YourUser', 'resolve'),
1, 'GRANTED', 0, 'DENIED', NULL) PRIVILEGE 
FROM DUAL;

--if you have created access permissions you wish to delete
--using the information from the select use this to delete what you don't want

exec DBMS_NETWORK_ACL_ADMIN.DROP_ACL ('acl_utl_smtp.xml');

--for more troubleshooting try this barebones mail procedure, run with your user. Copied from [here][1]
DECLARE
v_From      VARCHAR2(80) := '[email protected]';
v_Recipient VARCHAR2(80) := '[email protected]';
v_Subject   VARCHAR2(80) := 'test subject';
v_Mail_Host VARCHAR2(30) := 'mail.mycompany.com';
v_Mail_Conn utl_smtp.Connection;
crlf        VARCHAR2(2)  := chr(13)||chr(10);
BEGIN
v_Mail_Conn := utl_smtp.Open_Connection(v_Mail_Host, 25);
utl_smtp.Helo(v_Mail_Conn, v_Mail_Host);
utl_smtp.Mail(v_Mail_Conn, v_From);
utl_smtp.Rcpt(v_Mail_Conn, v_Recipient);
utl_smtp.Data(v_Mail_Conn,
'Date: '   || to_char(sysdate, 'Dy, DD Mon YYYY hh24:mi:ss') || crlf ||
'From: '   || v_From || crlf ||
'Subject: '|| v_Subject || crlf ||
'To: '     || v_Recipient || crlf ||
crlf ||
'some message text'|| crlf ||   -- Message body
'more message text'|| crlf
 );
utl_smtp.Quit(v_mail_conn);
EXCEPTION
WHEN utl_smtp.Transient_Error OR utl_smtp.Permanent_Error then
raise_application_error(-20000, 'Unable to send mail', TRUE);
END;