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I'm implementing a new infrastructure which will include a kind of Microsoft's GPO using ldap, dns, dhcp and pam.

I'm creating a new schema to store the information I need, and I have a groupPolicyId attributeType which describe a 32 characters identifiers.

For this I did the following:

attributetype ( NAME 'groupPoliciId'
    DESC 'Group Policy Identifier'
    EQUALITY caseIgnoreMatch
    SUBSTR caseIgnoreSubstringsMatch

Using the SYNTAX{32}, I specify that I want an UTF-8 encoded string which is at most 32 characters.

I now need to set a minimum length, googled for hours and didn't find anything which may helps. Any Idea? Thanks.

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