Windows Server 2012R2 Essentials - changing complexity for passwords

What's the 'right' way to change complexity settings for passwords for users of the domain?  Googling, I found:

this says to use local security policy, not group policy

this says use group policy:

does the answer matter for users of the server or users in the domain?  aren't ALL users of the server actually domain users (admins?)
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Scott CSenior EngineerCommented:
Group policy is the way to go.

It would matter for whichever users you choose to apply the group policy too.  A group policy can be applied to as many or as few users as you'd like.
David AtkinTechnical DirectorCommented:
The password policy in Server 2012 Essentials is configured via Group Policy.

If you're thinking about re-configuring then the correct procedure would be to do this via the Windows Server Esseentials Dashboard > Users Tab > Click 'Set the password policy' in the User Tasks on the right hand side.

In the background it will change the settings in the Default Domain Policy.

This will change the policy for all users.

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BeGentleWithMe-INeedHelpAuthor Commented:
thanks guys... maybe not when I do it through users tab as david mentions, but is there a rule of thumb when you change GP and have to reboot? the server?  desktops?  or run a command on the server? desktop?  something like gpupdate /force?  Is that it?  I remember the command... just don't know when to use it : )
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Windows Server 2012

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