Sending emails with a S/MIME signature has 2 advantages:
It ensures that the sender is really who (s)he says (s)he is (prevents spoofing)
The content of the email has not been changed or tampered with
It is fairly easy to implement and it works with any recipient as most email clients (including web clients) support S/MIME. Even if a client would not support it, the recipient can still read the mail.
First, you need to get an official certificate for your email address. There are different Read more [...]
If you need to synchronize the time via the Internet on a Windows Server, it is best to configure this via command line. Find below the commands you need (Open CMD as Administrator):
w32tm /config /syncfromflags:manual /manualpeerlist:"ptbtime1.ptb.de, ptbtime2.ptb.de, ptbtime3.ptb.de"
w32tm /config /update
"ptbtime1.ptb.de" is just an example, of course you can use other time servers.
If you are not sure if the time of your Windows Server or Client is synchronized properly or if you would like to know which is the time source, you can use the following command lines (Start cmd with Administrator privileges):
net start w32time
w32tm /query /status
You should see something like this:
C:\Users\Administrator>w32tm /query /status
Leap Indicator: 0(no warning)
Stratum: 2 (secondary reference - syncd by (S)NTP)
Precision: -6 (15.625ms per tick)
Root Read more [...]
You can use HP ILO to upgrade its own firmware, by uploading the firmware file (e.g. ilo4_255.bin) via ILO web console. This is straight forward and clear.
But the ILO can do much more (but this is really a bit hidden in the web interface). From the help notes:
The following firmware types can be updated from the Firmware Update page:
System ROM (BIOS)
Chassis firmware (SL and XL servers)
Power Management Controller
System Programmable Read more [...]
To avoid the picture on the Win Server 2016 Lock and Logon Screen, use the following procedure:
Start the Group Policy Editor: gpedit.msc
Go to Computer Configuration > Administrative Templates > Control Panel > Personalization
Open Force a spcific default lock screen and logon image
Enable it and set the path to the lock screen image to:
Tick Turn off fun facts
Click on OK to save the changes
Read more [...]
Since Windows 10 is not using Control Panel anymore for Windows Updates, it is not that simple to create a shortcut anymore. To create a shortcut to Windows Update, use the following procedure:
Right-click on the Desktop and choose New > Shortcut
In the "Location of the item" field, type
In the "Name of the shortcut" field, type Windows Update
Click on Finish
Read more [...]
Regular Expressions (RegEx) can be quite complex to understand. For a simple start, I have made a "Regex for Dummies" guide, which you will find below:
In order to make it an easy start, I made 2 assumptions:
As an input string, we just look at one line. Multi-line strings are excluded from this tutorial.
A result can only be "True" or "False". "True" means the Regex matches the input string at least once. "False" means the Regex does not match the input string at all.
In Read more [...]
The Windows 10 Start Menu is not as customizable as it used to be in Windows 7. While the part on the right (the tiles) can be easily removed and added by right-clicking them, the traditional part on the left (folders and shortcuts) is not customizable any more. In Windows 7, you could right-click on a shortcut and then delete or rename it. Not any more in Windows 10.
There are tricks to modify the Windows 10 Start Menu shortcuts anyway. Find the instructions to do so below:
The Read more [...]
Some Windows 10 apps cannot be uninstalled, even not with Power Shell commands. One example is the Edge browser. But you can disable those apps by renaming the folder that they are stored in.
The system apps can be found in
Find below the list of folders that I have renamed without any problem:
ContactSupport_cw5n1h2txyewy = Get Help
Microsoft.AccountsControl_cw5n1h2txyewy Read more [...]
SPN means "Service Principal Name". In Active Directory you can set an SPN with the command line tool SETSPN. Find below some usage examples which I use often:
setspn -Q http/www.mywebsite.com ==> Check if the SPN "http/www.mywebsite.com" exists
setspn -L MyServer ==> Show all SPNs for MyServer
setspn -X ==> Search for duplicate SPNs in the current domain
setspn -S http/www.mywebsite.com MyServer ==> Set the SPN for a specific Server object in AD. This also checks for duplicate Read more [...]