https://www.alessandromazzanti.com/2012/09/server-effettuare-il-test-di-ad.html
It mainly refer to old 2003/2008 Server but it has some interesting information that could be still useful for someone.
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Microsoft Active Directory Topology Diagrammer (ADTD)
Active Directory Topology Diagrammer tool read Active Directory structure utilizing LDAP. Visio diagram created may include domains, sites, OU, DFS-R, administrative groups and so on.- You must install “ADTD.Net Setup.msi” here .
- Install and Execute “ADTD.exe”. That permit you gathering all domain/Forest information.
2008 Server AD e DNS Best Practice Analyzer
- This tool is already included in Windows 2008 Server R2.
- Server Manager > Roles > Active Directory Domain Services > Scroll down to find ‘Best Practices Analyzer’ and click ‘Scan This Role’
- DNS Server BPA is located in Server Manager > Roles > DNS Server > Scroll down to find ‘Best Practices Analyzer’ and click ‘Scan This Role’.
- Using CLI commands (be aware that pipe | permit you save commands output to text file)
REMARK 1/2: be aware that on previously 2008 server versions Windows Server 2003 Administration Tools Pack (Adminpak) is necessary (Download link)
REMARK 2/2: you might execute this script Active Directory Health Check script from thesysadmins
Find System Boot Time and Uptime:
systeminfo | find “System Boot Time:”
systeminfo | find “System Up Time:”
Analyze the state of domain controllers in a forest:
dcdiag /a
Provide an overview of any replication failures, and if last replication attempts were successful:
repadmin /replsummary
repadmin / showrepl
Returns the FSMO roles holders:
netdom query fsmo
- Check opened firewall ports
- Windows Firewall: Inbound ports - UDP/TCP 53, 88, 389, 464; UDP 123, 137; TCP 139, 445, 3268