Calculating the Number of Client Access Licenses (CAL) for Exchange Server

Posted on February 22, 2017 · Posted in Exchange
Exchange 2010 Management Console - CAL in use

In the previous article we discussed the peculiarities of Exchange Server licensing and mentioned that to access a mailbox on Exchange Server a user or a device needs a Client Access License (Exchange Server CAL). You can purchase a license for a device or a user (this is more expensive)… read more

Fix: Windows 7 Stuck on “Checking For Updates”

Posted on February 1, 2017 · Posted in Windows 7
Windows 7 stuck on checking for updates

I have encountered a problem of very long (better to say, endless) update search in a newly installed Windows 7 SP1 on one of the client computers. The problem looks like this: after the OS has been installed and the Internet connection has been configured, you go to Windows Update.. read more

How to Sign PowerShell Script with a Code Signing Certificate

Posted on January 25, 2017 · Posted in Powershell
SIG Begin signature block

A script or an executable with a digital signature allows a user to make sure that a file is original and its code has not been changed by third parties. PowerShell also has an integrated feature to sign a *.ps1 script files.

Exchange Server 2016 Licensing

Posted on January 20, 2017 · Posted in Exchange

This article describes the licensing peculiarities, differences in editions and client licenses (CAL) in the latest version of Microsoft corporate e-mail system — Exchange Server 2016.

Hyper-V PowerShell Direct in Windows Server 2016

Posted on January 19, 2017 · Posted in Hyper-V, Powershell, Windows Server 2016
Managing Hyper-V 2016 VMs using PowerShell Direct

PowerShell Direct is a new PowerShell feature in Windows Server 2016 and Windows 10 that allows to create a direct local PowerShell session with any virtual machine run on a Hyper-V host, meanwhile the connection is established not via the network, but  through the internal VM bus. Thus, a Hyper-V.. read more

How to Block Viruses and Ransomware Using Software Restriction Policies

Posted on January 12, 2017 · Posted in Group Policies
list of srp rules

We go on with the series of articles on counterstrategies to the viruses and encryption malware (Ransomware, CryptoLocker , etc.) in the corporate environment. Earlier we considered how to configure Windows file server protection using FSRM and restoring encrypted files from VSS snapshots after infection. Today we’ll talk about how.. read more

GPO Logging Using Gpsvc.log in Windows 7

Posted on January 10, 2017 · Posted in Windows 7, Windows Server 2008 R2

The debug log Userenv.log  (%Systemroot%\Debug\UserMode\Userenv.log) could be used to thoroughly analyze the application of GPO in Windows XP and Windows Server 2003. Using this Group Policy logging, you could track the order and time of applying group policies, find the policies that slow down the booting and solve other GPO.. read more

Tuning Windows Performance for Use in Virtual Environment

Posted on December 30, 2016 · Posted in VMWare
windows optimization report

When using Windows as a Remote Desktop server or in VDI solutions, multiple users share the resources of a single server. The less resources each user session consumes, the higher is the density of terminal or VDI sessions supported by a single host. The same is also true when running.. read more

Temporary Membership in Active Directory Groups

Posted on December 28, 2016 · Posted in Active Directory, Windows Server 2016
Get-ADGroup ShowMemberTimeToLive

The version of Active Directory in Windows Server 2016 has a number of interesting changes. Today we’ll consider the opportunity to provide users with temporary membership in Active Directory groups. This feature can be used when you need to give specific privileges based on the membership in AD security group.. read more

Remote Desktop Connection Error: Outdated entry in the DNS cache

Posted on December 14, 2016 · Posted in Windows Server 2008 R2
The connection cannot be completed because the remote computer that was reached is not the one you specified. This could be caused by an outdated entry in the DNS cache

Users have begun to complain that when trying to connect to the RDS (Remote Desktop Server) farm  running Windows Server 2008 R2 using the standard RD client (mstsc.exe) they often get an error: