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]Continue Lendo » 28/06/2020 PowerShell – O que é

]Continue Lendo » 28/06/2020 PowerShell – O que é

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Neste site você encontrar diversos artigos e vídeos para te ajudar na sua carreira de TI

infraestrutura 10/07/2020 O que é uma nuvem privada?.
O que é uma nuvem privada.
A nuvem privada é definida como serviços de computação oferecidos pela Internet ou por uma rede interna privada e apenas para selecionar usuários em vez do público em geral. Também chamada de nuvem interna ou corporativa, a computação em nuvem privada oferece às empresas muitos dos benefícios de uma nuvem pública– [.

]Continue Lendo » infraestrutura 04/07/2020 O que é uma rede DMZ

Qual seu objetivo?.
O que é uma rede DMZ.
Nas redes de computadores, uma DMZ (zona desmilitarizada), também conhecida como  rede de perímetro  ou  sub-rede rastreada , é uma sub-rede física ou lógica que separa uma rede  local (LAN) interna  de outras redes não confiáveis ??- geralmente a Internet pública. Servidores.

Recursos e serviços externos estão localizados na DMZ. Portanto

eles são acessíveis pela Internet, mas o restante da LAN interna [.
]Continue Lendo » 30/06/2020 Get-Process – Como obter informações detalhadas sobre os processos.
Embora muitos saibam que o comando Get-Process no PowerShell pode fornecer informações básicas do processo, ele também pode exibir detalhes específicos com alguns pequenos ajustes.

Se você usa o Windows PowerShell há algum tempo

provavelmente está familiarizado com o cmdlet Get-Process. Esse cmdlet, que você pode ver na Figura 1 , retorna uma lista dos vários processos em [.

]Continue Lendo » 30/06/2020 Cmdlets

aprenda Como Utilizar os Cmdlets no Powershell.
Um cmdlets – pronunciado comando-let – é um comando pequeno e leve que é usado no ambiente Windows PowerShell .
Um cmdlet normalmente existe como um pequeno script que se destina a executar uma única função específica, como lidar com arquivos e alterar diretórios.
Um cmdlet e seus parâmetros relevantes podem ser inseridos em uma linha de [.
]Continue Lendo » 28/06/2020 PowerShell – O que é, O que faz e quais são os recursos?.
O que é PowerShell.
O PowerShell é um mecanismo de automação orientado a objetos e linguagem de script com um shell de linha de comando interativo que a Microsoft desenvolveu para ajudar os profissionais de TI a configurar sistemas e automatizar tarefas administrativas.
O PowerShell, foi construído na estrutura.
NET, funciona com objetos, enquanto a maioria dos shells de linha [.
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Unzipping files in Powershell scripts

Tag: Windows.
Unzipping files in Powershell scripts.
I’ve been working for some time on a project which is deploying a complex application to a client’s servers.

This project relies on Powershell scripts to push zip files to servers

unzip those files on the servers and then install the MSI files contained within them.
The zip files are frequently large (up to 900MB) and the time taken to unzip the files is causing problems with our automated installation software (Tivoli) due to timeouts.

The scripts are currently unzipped using the Copyhere method

Simple tests on a Windows 8 PC with 8GB RAM and an 8 core processor although a single SATA hard drive show that this method is “disk intensive” and disk utilisation as viewed in Task Manager “flatlines” at 100% during the extraction.
I spent some time looking at alternatives to the “Copyhere” method to unzip files to reduce the time taken for deployments and reduce the risk of Tivoli timeouts which were affecting the project.

Method A series of test files were produced using a test utility (FSTFIL

EXE), .

FSTFIL creates test files made up of random data

These files are difficult to compress due to the fact that they contain little or no “whitespace” or repeating characters, similar to the already compressed MSI files which make up our deployment packages.
Files were created that were 100MB, 200MB, 300MB, 400MB and 500MB.

Each of these files were zipped into similar sized ZIP files

As well as this a single large ZIP files containing each of the test files was also created.
Tests were performed to establish the time taken to decompress increasingly large ZIP files.
Test were performed to establish whether alternative decompression (unzip) techniques were faster.

Observations The effect of filesize on CopyHere unzips Despite initial observations

after averaging out the time taken to decompress different sized files using the CopyHere method the time taken to decompress increasingly larger files was found to be linear.

The difference between CopyHere and ExtractToDirectory unzips To do this comparison

two PowerShell scripts were written.

Each script unzipped the same file (a 1.5GB ZIP file containing each of the 100MB

200MB, 300MB, 400MB and 500MB test files described earlier).
Each script calculated the elapsed time for each extract, this was recorded for analysis.
Unzips took place alternately using one of the two techniques to ensure that resource utilisation on the test PC was comparable for each test.
No detailed performance monitoring was carried out during the first tests, but both CPU and disk utilisation was observed to be higher (seen in Task Manager) when using the CopyHere method.
Conclusion The ExtractToDirectory method introduced in.

Net Framework 4.5 is considerably more efficient when UNZIPPING packages

Assuming that this method is not available, alternative techniques to unzip the packages, possibly including the use of “self extracting .exe” files, the use of RAM disks  or memory-mapped files to remove disk bottlenecks or more modern decompression techniques may reduce the risk of Tivoli timeouts and increase the likelihood of successful deployments.

Powershell scripts used November 18

2013November 18, 2013 , , Powershell, , 2 Comments on Unzipping files in Powershell scripts DMA2200 Media Center problem – resolved.
For the last few weeks, .

I’ve been having problems with my Linksys Media Extender

This has been causing me a great deal of grief because this is the only method currently of watching TV in bed (I have a Windows 7 Media Center PC in the front room and serve recorded TV as well as the satellite feeds up to the extender in the bedroom).
I’ve noticed that occasionally the Media Center Extender freezes up and becomes unresponsive to the remote control.
I replaced the batteries in the remote (twice) but the problem remained.
The Extender would happily continue displaying the channel that I had started watching but wouldn’t allow me to change.
Occasionally I’d come back to the Extender to find that the screen was blank and the extender was unresponsive.
Restarting the Extender has always temporarily resolved this issue, but in the last few days, the problem has become more acute and the extender has generally only remained stable for a few minutes before crashing again.
Since nobody is manufacturing extenders any more (until Ceton releases their new media center later this year) , this could have meant that I needed to drop an aerial into the bedroom and lose the ability to watch recorded TV.
Trawling the Internet for clues to the problem I came across this article, which although it was 2 years old and written in the US, gave me a nugget of information which fixed my problem.
http://experts.windows.com/frms/windows_entertainment_and_connected_home/f/116/p/95097/496301.aspx (Sadly not there anymore….) It appears that the extender tries to connect to a Cisco or Linksys server to obtain an update.
Since support for this product has now been withdrawn it is likely that the server is now offline.
My theory is that the problem hit US users a few years ago and perhaps only recently has the same problem surfaced in my region when the UK/European regional servers were decommissioned.
My connection was wired, but I presume that the same steps could be used to fix a problem with a wired DMA2200 (or DMA2100) extender.
Steps taken: Set a static IP address for the media center extender.
Enter 0.0.0.0 for both primary and secondary DNS servers.
This prevents the extender from accessing the internet and then crashing when it fails to find the relevant update servers.
August 18, 2012October 8, 2019 , Media Center, 2 Comments on DMA2200 Media Center problem – resolved.


The fix (during TP5) is to not use PowerShell ISE

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Tag: Nano Server.
Posted on by.
Posted on by Cannot Bind Parameter ‘ForegroundColor’ Error When Creating Nano Server Image.
Posted on May 13, 2016May 13, 2016 by You get the following error when running New-NanoServerImage in PowerShell ISE to create a new Windows Server 2016 (WS2016) Nano Server image: Write-W2VError : Cannot bind parameter ‘ForegroundColor’.
Cannot convert the “#FFFF0000” value of type “System.
Windows.
Media.
Color” to type “System.
ConsoleColor”.
The fix (during TP5) is to not use PowerShell ISE.
Use an elevated PowerShell prompt instead.… Read the full article Leave this field empty if you”re human: Archives Select Month July 2020 June 2020 May 2020 April 2020 March 2020 February 2020 January 2020 December 2019 November 2019 October 2019 September 2019 August 2019 July 2019 June 2019 May 2019 April 2019 March 2019 January 2019 December 2018 November 2018 October 2018 September 2018 August 2018 July 2018 June 2018 May 2018 April 2018 March 2018 February 2018 January 2018 December 2017 November 2017 October 2017 September 2017 August 2017 July 2017 June 2017 May 2017 March 2017 February 2017 December 2016 November 2016 October 2016 September 2016 August 2016 July 2016 June 2016 May 2016 April 2016 March 2016 February 2016 January 2016 December 2015 November 2015 October 2015 September 2015 August 2015 July 2015 June 2015 May 2015 April 2015 March 2015 February 2015 January 2015 December 2014 November 2014 October 2014 September 2014 August 2014 July 2014 June 2014 May 2014 April 2014 March 2014 February 2014 January 2014 December 2013 November 2013 October 2013 September 2013 August 2013 July 2013 June 2013 May 2013 April 2013 March 2013 February 2013 January 2013 December 2012 November 2012 October 2012.