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AD replication check commands

Check forrest health:

Repadmin /replsummary

Check any items remaining to replicate:

Repadmin /Queue

Last replication inbound attempt result:

Repadmin /Showrepl

Force replication on all controllers:

Repadmin /syncall

Force recalc by KCC:

Repadmin /KCC


Reference: http://www.itingredients.com/repadmin-active-directory-replication-tools/

Another reference: https://social.technet.microsoft.com/wiki/contents/articles/24160.active-directory-back-to-basics-sysvol.aspx


Jitsi-meet on Ubuntu 18.04

Easy to follow instructions for Ubuntu:


How to secure room (conference) creation [Private Domain]





Tool for VMWare to Hyper-V disk conversion


This tool is used for converting, creating and consistency checking of various virtual disk formats. It is compatible with Hyper-V, KVM, VMware, VirtualBox and Xen virtualization solution

NPS event ID 6273 Reason Code: 16

Check the details on the Certificate Subject as described in the following link and verify your certificate.  If you find it is missing the Subject infor, change your template and request a new certificate for your NPS server.


Backup Exec, SQL Express near Full

Two resources for compacting the database:



How to truncate the Database:


Two helpful links for information on failled Snapshots and System Recovery 2013

On Windows Server 2012 R2:


how to restart services related to the Shadow Services without restarting the server:

Synchronization Tab crashes the WSUS console

You have to clear the synchronization history from the Windows Internet Database (WID) if you selected it during your WSUS setup.

You can connect to the Internal Database with the SQL Express Management Studio using the following instance for Windows Server 2012 (R2): \\.\pipe\MICROSOFT##WID\tsql\query

Follow the instructions on: https://blogs.technet.microsoft.com/sus/2009/03/04/clearing-the-synchronization-history-in-the-wsus-console/

If you only want to delete certain records, you can do it with the query:

DELETE FROM tbEventInstance WHERE EventNamespaceID = ‘2’ AND EVENTID IN (‘381’, ‘382’, ‘384’, ‘386’, ‘387’, ‘389’) AND TimeAtServer < ’20yy-mm-dd’

this query will delete from that date back in time.