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Code snippets : PowerShell : Changing script execution policy

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Handy quick one to change script execution policy for PowerShell:

Set-ExecutionPolicy -ExecutionPolicy Unrestricted -Force

Now all scripts should work fine 🙂

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Config snippets : ADLDS : Disable password policy

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By default password policy from Active Directory domain will impact ADLDS and users created in ADLDS instance. To prevent domain policies from enforcing password restrictions and rules on ADLDS users one simple setting has to be adjusted:

  • ADAMDisablePasswordPolicies

Here is how it looks on computer which has ADLDS instance installed on port 50389:

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Tips & Tricks : HP TouchSmart tm2t, Windows 8 and Switchable Graphics

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Recently I came up with idea to upgrade operating system on my HP TouchSmart tm2t to Windows 8. In general there was no major issues except one. As this computer has two graphics adapters (Intel for low performance when operate on battery, AMD/ATI for better performance when operate on mains) there was small issue with configuring Switchable Graphics option.

After installation computer was operating only on low performance Intel card and thre was no possibility to switch to AMD/ATI. Here is what I’ve done ot make it work:

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How-to : Create DAG on Exchange 2010

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Set of screenshots from old archives. It shows how to setup DAG on Microsoft Exchange Server 2010.

If there will be interest in that subject I will put some description around that, just request that in comments.

Otherwise, enjoy step-by-step screenshot guide for DAG on Exchange 2010

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How-to : Publish multiple URLs with single IP and HAProxy

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Many times there is a need to publish multiple websites from internal network, but there is only one public IP address available.

How this can be done easy way? HAProxy can help us with it.

In example configuration I have 2 URLs registered to same public IP address:

  • first.laboratory.net
  • second.laboratory.net
  • third.laboratory.net

Here is how HAProxy configuration for given example looks like…

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How-to : Windows Event Collector: DNS Event Log Forwarding

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Tomasz Jagiello strikes back as guest writer 🙂 This time on Windows Event Collector configuration for DNS Event Log forwarding. Very good how-to with detailed configuration.

Design where via Group Policy a Domain Controller group will be configured to forward DNS Server events to a single collector.

To test and demonstrate Event Log Forwarding I built simple Lab environment:

  • 2x Domain Controllers (DC1, DC2)
  • 1x Event Collector (SRV1).

win-event-collector-dns-01

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Config snippets : Cisco : First time 881w ISR with AP configurarion

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When I got cisco 881w first time it was interesting experience. This device presented new concept which was different to model I knew so far, which is 871w. In 881w router module and wireless module are separated. With that being said, router configuration and access point configuration is separated as well. Also, each module (router and access point) has own IOS:

  • c880data-universalk9-mz.152-1.T1 – router IOS
  • ap801-k9w7-mx.124-21a.JA1 – access point IOS

As usual, first I connected device to console cable and attempted to configure it. Not being familiar with new concept it was a bit of a failure 🙂 So, eventually had to refer to documentation to find out what’s going on. Problem which came up was, how to access wireless module to configure it or even check if it’s there 🙂

So, finally after I did apply reading ability and spent few minutes with Cisco documentation I was able to access wireless module and configure it to provide wireless services in the air. Here is how that happend:

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How-to : Introduction to Laravel : Publish Laravel Framework project on Apache 2.4

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In previous article “How-to : Introduction to Laravel : Create a Laravel Framework project on openSUSE Leap 42.1” we’ve created Laravel project called demo-project.

However, this project is not available on web server, so we can’t open it in web browser and see it’s content.

Let’s configure Apache server to serve our demo-project.

In this article we will:

  • Place project files in appropriate folder
  • Adjust files ownership for proper publishing
  • Create configuration for Apache, so our content will be available

Let’s get to work…

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Tips & Tricks : Windows 10 & Windows Server 2016 reset on VMware ESX 6

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Here is one from friend of mine, very skilled Senior IT Engineer, Tomasz Jagiello. Some bugs he identified while working with VMware ESX 6.

Symptoms

VM running Windows 10 (x64) as the Guest OS is automatically reset after some hours (roughly a day). Reoccurs daily.

The thread said it also applied to Windows Server 2016 VMs.

There is an unrecoverable error that cause the VMkernel to shut down / restart / crash the virtual machine.

VMware ESX unrecoverable error: (vcpu-0) NOT_REACHED bora/devices/ahci/ahci_user.c:1530

Check if you’re using a para-virtual SATA adapter in the settings of the VM.

 

Cause

There is a VMware bug where if the SATA adapter receives SMART communications on a non-SMART device the CPU bus locks up and ESX reboots the VM.

I was using SCSI for the VM disks and SATA for the VM CD-ROM.

 

Workaround

  1. Edit VM Hardware settings
    • Remove CD/ROM
    • OK
  2. Edit VM Hardware settings
    • Remove SATA Controller
    • OK
  3. Edit VM Hardware settings
    • Add CD/ROM
    • Change to IDE
    • Remove SATA Controller
    • OK
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Tips & Tricks : Disable Microsoft Compatibility Telemetry Service

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In case Microsoft Compatibility Telemetry process takes a lot of your processor, you can easily remove it:

  1. Run Command Prompt as Administrator.
  2. Execute following commands in Command Prompt:
  • sc delete DiagTrack
  • sc delete dmwappushservice
  • echo “” > C:\ProgramData\Microsoft\Diagnosis\ETLLogs\AutoLogger\AutoLogger-Diagtrack-Listener.etl
  • reg add “HKLM\SOFTWARE\Policies\Microsoft\Windows\DataCollection” /v AllowTelemetry /t REG_DWORD /d 0 /f