Archives

Unhealthy Identity synchronization Notification: a trivial solution (and Microsoft’s useless troubleshooter)

If you use Microsoft’s AD Connect, also known as DirSync, you may have received an email like this:

It’s bad news: your Active Directory is not syncing with Office 365. “Azure Active Directory did not register a synchronization attempt from the Identity synchronization tool in the last 24 hours.”

I got this after upgrading

…continue reading Unhealthy Identity synchronization Notification: a trivial solution (and Microsoft’s useless troubleshooter)

How to remove the WINS server feature from Windows Server

The WINS service is not needed in most Windows networks but may be running either for legacy reasons, or because someone enabled it in the hope that it might fix a network issue.

It is now apparently a security risk. See here and Reg article here.

Apparently Microsoft says “won’t fix” despite the service still

…continue reading How to remove the WINS server feature from Windows Server

Fixing “couldn’t parse private ssl key” in Dovecot

I run Debian Linux including a mail server, and part of the system is Dovecot, an open source IMAP and POP3 server which has always worked well for me.

Unfortunately it stopped working after an upgrade. With Linux I am in the habit of doing:

apt-get update

apt-get upgrade

to keep the system patched, and

…continue reading Fixing “couldn’t parse private ssl key” in Dovecot

Disabling automatic update restarts in Windows Server 2016

Windows Server 2016 is in effect the Windows 10 version of the server OS. If you look in Settings it seems to have the same attitude to updates; in other words, you get them automatically whether you like it or not. Currently my server is even offering me Windows 10 Creators Update:

However, I

…continue reading Disabling automatic update restarts in Windows Server 2016

How to get a Bitlocker recovery key on Android

Scenario: you are out and about with your laptop and phone. Laptop protected with Bitlocker encryption. You start up your laptop and it decides for no obvious reason to demand your Bitlocker key before booting up.

If your laptop is domain-joined, this key is normally stored in Active Directory. If is not domain-joined, it is

…continue reading How to get a Bitlocker recovery key on Android

Publishing Exchange with pfSense

pfSense is a FreeBSD-based firewall which you can find here.

I wanted to publish Exchange through pfSense. I installed the Squid plugin which includes specific reverse proxy support for Exchange.

If you search for help with publishing Exchange on pfSense you will find this document by Mohammed Hamada.

Unfortunately the steps given seem to be

…continue reading Publishing Exchange with pfSense

What to do when Outlook is stuck on “processing”

I have seen this a couple of times recently, both cases where Outlook 2016 is installed. You start Outlook, it loads plug-ins, then presents a dialog that says “Processing”.

It does this for a long time. What is is processing? Who knows. Will it complete in its own good time? Not sure, but for

…continue reading What to do when Outlook is stuck on “processing”

The case of the disappearing Azure AD application registration

Some time ago I wrote a simple web application which runs on Microsoft Azure and uses Azure Active Directory for authentication. The application is used constantly and has proved reliable; however yesterday it stopped working. A quick debug session showed that the problem was an Azure AD permissions error.

In order to use Azure AD,

…continue reading The case of the disappearing Azure AD application registration

Using Strongswan as a VPN client – and a Windows Firewall gotcha

How do you monitor a Windows server over the internet? This one is not in Azure but an actual server, running Hyper-V of course, and the requirement is to monitor both the Hyper-V host and the VMs for things like free memory, disk space and CPU usage.

There is a nice solution called Cacti which

…continue reading Using Strongswan as a VPN client – and a Windows Firewall gotcha