LDAP domain name validation

[DavidePrincipi]

The current LDAP domain name validator forbids name starting with a number.

Steps to reproduce

• Start the installation of Samba AD or OpenLDAP user domain
• Try to use a domain name starting with a number

Expected results

The domain is created and provisioned correctly

Actual results

The validator prevents me to complete the task

Additional information

Sparse citations from AD documentation:

The first character must be alphabetic or numeric. The FQDN of a domain controller must be smaller than 155 bytes. Minimum name length: Two characters Maximum name length: 63 characters https://learn.microsoft.com/en-us/troubleshoot/windows-server/identity/naming-conventions-for-computer-domain-site-ou#dns-domain-names

For OpenLDAP there should be no issue -- https://ldapwiki.com/wiki/Wiki.jsp?page=DC

Can we relax the regular expression that validates the domain name?

Yes, it seems...

Architecturally, domains and computers are represented both as objects in Active Directory and as nodes in DNS. -- https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2003/cc759186(v=ws.10)#dns-support-for-activedirectory-1

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Refs https://community.nethserver.org/t/ns8-rc1-openldap-domain-validation-failed/22690 Discussion https://mattermost.nethesis.it/nethesis/pl/yiiapr73spre8fz45norp4ao6y

Components

core 2.5.4 samba 2.2.2 openldap 2.2.1

[stephdl]

QA (todo)

samba 2.2.3-dev.1 openldap 2.2.2-dev.2

• test 1 use: ghcr.io/nethserver/samba:2.2.3-dev.1 Create a domain with samba AD, you must be able to use a fqdn or a domain name starting by a digit and test you have no regression

1foo.domain.org and 1domain.org must be valid
foo.domain.org and domain.org must be valid

• test 2 use : ghcr.io/nethserver/openldap:2.2.2-dev.2 Create a domain with openldap, you must be able to use a fqdn or a domain name starting by a digit and test you have no regression

1foo.domain.org and 1domain.org must be valid
foo.domain.org and domain.org must be valid

[nrauso]

test case 1: VERIFIED test case 2: VERIFIED

[DavidePrincipi]

Released openldap https://github.com/NethServer/ns8-openldap/releases/tag/2.2.2

[DavidePrincipi]

Released samba https://github.com/NethServer/ns8-samba/releases/tag/2.2.3