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  • Warning: date_format() expects parameter 1 to be DateTimeInterface, boolean given in format_date() (line 2072 of /home/scslive/public_html/includes/common.inc).
  • Warning: date_timezone_set() expects parameter 1 to be DateTime, boolean given in format_date() (line 2062 of /home/scslive/public_html/includes/common.inc).
  • Warning: date_format() expects parameter 1 to be DateTimeInterface, boolean given in format_date() (line 2072 of /home/scslive/public_html/includes/common.inc).
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  • Warning: date_format() expects parameter 1 to be DateTimeInterface, boolean given in format_date() (line 2072 of /home/scslive/public_html/includes/common.inc).
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  • Warning: date_format() expects parameter 1 to be DateTimeInterface, boolean given in format_date() (line 2072 of /home/scslive/public_html/includes/common.inc).

Dell Technologies World – On-Site Report

Theresa Miller - Wed, 05/02/2018 - 03:54

I’m writing this on Day 2 of Dell Technologies World 2018. The conference in this timeframe in years past was EMC World. When Dell and EMC merged, the show was named Dell EMC World. This year, the name was changed to Dell Technologies World to reflect the companies that are part of the Dell world. […]

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Citrix is Slow? How to Uncover the Real Cause and Prove It’s Not Citrix

Theresa Miller - Tue, 04/24/2018 - 05:30

As a Citrix administrator you are supporting architecture that can be complex, distributed and includes many interdependencies between the Citrix tiers and the supporting infrastructure. It is also extremely likely that you are supporting an environment with many different versions of the Citrix software.  Citrix is typically a performance-sensitive application. A problem anywhere in the Citrix […]

The post Citrix is Slow? How to Uncover the Real Cause and Prove It’s Not Citrix appeared first on 24x7ITConnection.

UK Citrix User Group Summer 2018 meeting – London

Citrix UK User Group - Sun, 04/22/2018 - 15:19

Our 25th XL event will take place in London on 12th June 2018 Venue Blue Fin Building (10th floor) 110 Southwark Street SE1 0SU London   Summer is around the corner ! We love the views from our spacious terrace …

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Microsoft outage makes Cloud grey

Theresa Miller - Tue, 04/17/2018 - 05:30

Earlier this month, some Microsoft Cloud services had an unexpected outage. It didn’t affect all regions globally and wasn’t a direct services failure, but an issue with the authentication platform Azure Active Directory. The bad parts I noticed the issue when my phone popped up an error about being unable to sign-in to my Office […]

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Steps to Protect Virtual Machines Against Ransomware With Backups

Theresa Miller - Tue, 04/10/2018 - 05:30

Ransomware is no joke. Even those organizations who think their environments are up to date with patches and procedures have found themselves in a precarious position over the last few years. The simplest way to protect virtual machines against ransomware is to back them up. This is something that every organization is doing, or at […]

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Do you know what Office 365 features and updates are coming to your Office 365 Tenant?

Theresa Miller - Wed, 04/04/2018 - 02:21

Do you know what Office 365 features and updates are coming to your Office 365 Tenant?  If you answered “no” to this question then I would encourage you to keep reading.  Recently I had the opportunity to learn a little bit more about how Microsoft is communicating their changes about what is going on in […]

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DHCP – Activate Filter “Allow” & import MAC address from SCCM by WMI request

Archy.net - Tue, 08/29/2017 - 12:08

Hello folks,
Recently, i have post a script to interroge SCCM and find the MAC address informations. In this post, i show you how activate DHCP Filter “Allow” to protect your DHCP delivery lease to deny access to your network (i know, there is NAP or NAC but, it is a simple way to block the issuance of a DHCP lease).

Prerequirements

First, you need to create a Active Directory user and give to this account rights “DHCP Administrator”.

In SCCM console, add this users to group “Read-only Analyst” .

Activate filter “Allow” on DHCP server

Connect to your DHCP Server and open the management consoleOn the IPV4 tab, open the drop-down menu, and then select the “Filters” option and right-click the “Allow” folder and select “Enable”.

From now, the DHCP server no longer delivers leases.

On the DHCP Server, launch this script for retreive and add the MAC Address informations from SCCM Server to filter list “Allow”.

Source code   # Connection information $SiteName = "FR1" $ServerSite = "sccm" # WMI Request $ImportSCCM = $(Get-WmiObject -Class SMS_R_SYSTEM -Namespace "root\sms\site_$SiteName" -computerName $ServerSite) # Create collection $Mycoll = @() foreach ($obj in $ImportSCCM) { Write-Host $obj.NetbiosName $obj.MACAddresses $obj.OperatingSystemNameandVersion $Mydetails = "" | Select-Object PCName, MacAddress, OS If ($([String]$obj.MACAddresses) -eq "") { $Mydetails.PCName = $obj.NetbiosName $Mydetails.MacAddress = "Nul" $Mydetails.OS = $obj.OperatingSystemNameandVersion } Else { $Mydetails.PCName = $obj.NetbiosName $Mydetails.MacAddress = [String]$obj.MACAddresses -replace ":","-" $Mydetails.OS = $obj.OperatingSystemNameandVersion } $Mycoll += $Mydetails } #Add MacAddress into DHCP Filter foreach ($objects in $Mycoll) { Add-DhcpServerv4Filter -List Allow -MacAddress $objects.MacAddress -Description $objects.PCName -Confirm:$false -Force -Verbose } # Remove Obsolete entries Compare-Object $(($Mycoll | Select-Object MacAddress).MacAddress) $(Get-DhcpServerv4Filter -ComputerName $DHCPServer -List Allow | Select-Object MacAddress).MacAddress -IncludeEqual | % { if ($_.SideIndicator -eq "=>") { Remove-DhcpServerv4Filter -ComputerName $DHCPServer -MacAddress $_.InputObject -Confirm:$false -Verbose } }

When the script is finished, you can see into the management console of DHCP Server, the entries are add into the “Allow” list.

The DHCP server correctly delivers the lease of the device whose MAC Address is allowed.

 

Categories: Community, Virtualisation

SCCM – Find Devices MAC Address

Archy.net - Fri, 08/25/2017 - 12:56

Hello Folks,

This week I needed to export from SCCM, the devices name and MAC Address to a CSV file.

I need this file to create green list into DHCP server. The Green list give permission to have a lease from DHCP server. I will speak of this subject in a futur post.

To find informations on devices into SCCM, we can work with WMI Class of SCCM. This script is based on WMI request.

Source code   $SiteName = "FR1" $ServerSite = "sccm" $Mycoll = @() foreach ($obj in (Get-WmiObject -Class SMS_R_SYSTEM -Namespace "root\sms\site_$SiteName" -computerName $ServerSite)) { Write-Host $obj.NetbiosName $obj.MACAddresses $obj.OperatingSystemNameandVersion $Mydetails = "" | Select-Object PCName, MacAddress, OS If ($([String]$obj.MACAddresses) -eq "") { $Mydetails.PCName = $obj.NetbiosName $Mydetails.MacAddress = "Nul" $Mydetails.OS = $obj.OperatingSystemNameandVersion } Else { $Mydetails.PCName = $obj.NetbiosName $Mydetails.MacAddress = [String]$obj.MACAddresses $Mydetails.OS = $obj.OperatingSystemNameandVersion } $Mycoll += $Mydetails } $Mycoll | Out-GridView

 

 

Categories: Community, Virtualisation

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