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List all Windows servers in Active Directory

So you have an Active Directory (AD) network and somebody has unwisely put every single computer, including the servers, into the default Computers OU. You now need to list out the entries that are servers, ignoring the much larger set of workstations.

Solution

You can use an AD LDAP query for this. The query, taken from a Developer’s Closet post, is:

(&(objectclass=computer)(objectcategory=computer)(operatingSystem=*Server*)(cn=*))

You can run this via Active Directory Users and Computers (ADUC) or ldifde, as we do below:

C:>ldifde -f output.ldf -d dc=example,dc=com -r “(&(objectclass=computer)(objectcategory=computer)(operatingSystem=*Server*)(cn=*))” -l cn

 

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