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Crear un Disco Virtual (VHD) Directo Desde el WIM (WIM2VHDx)

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Thanks to: https://windowserver.wordpress.com/ ¿Conocían que podía crear una instalación virtual de sistema operativo sin instalarlo? Parece confuso ¿No es cierto? pero sin embargo es así Hace ya tiempo, para ser más exactos desde el 22/10/2009, que está disponible un script que permite crear un disco virtual (VHD) directamente desde la imagen de instalación ( INSTALL.WIM ). Esto es, que una vez creado el disco VHD podemos crear una máquina virtual que automáticamente ejecutará SYSYPREP en el primer arranque, dejándola lista para usar (activaciones aparte) Este script al cual me refiero, es válido para Windows 7 / Windows Server 2008 R2 y está disponible en:   Windows(R) Image to Virtual Hard Disk (WIM2VHD) Converter Pues ahora está disponible lo mismo, y mejorado para Windows 8 / Windows Server 2012. Y digo mejorado porque además de más opciones de conversión, permite ejecutarlo tanto para Windows 8 / Windows Server 2012, como para Windows 7 / Windows Server 2...

Cisco WCCP Squid Transparent Proxy

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Thank to: https://networklessons.com WCCP (Web Cache Communication Protocol) is a Cisco protocol that lets you redirect web traffic from clients to a proxy server. Using a proxy server has a number of advantages: Caching: reduces network bandwidth because web traffic that has been requested before can be retrieved from the proxy cache instead of requesting it again from the Internet. Filtering: all web traffic goes through the proxy server first so you can filter certain websites. Monitoring: If you want to know what your users are doing you can track this on the proxy server. WCCP is used between a Cisco router and a proxy server to communicate. The proxy server will tell the router that it is “alive” and ready to serve webpages. It’s also used as a “hello” message so the router knows when the proxy is down. The router is called the  WCCP server  and the proxy is called the  WCCP client . In this tutorial I will first explain the basics of how WCCP forwa...

Update group policy (or run any command) remotely using Powershell

Thanks to: https://wiseindy.com/ This script allows you to run any command remotely using Powershell on your network. I usually use this to update group policy configurations on all PCs on my network remotely. Note: In  Windows Server 2012  &  Windows Server 2012 R2 , you can run the  Invoke-GPUpdate  PowerShell cmdlet ro refresh group policy on any  Windows 8  computers on your network.  More information here . What you will need: PsTools Download PsTools from here:  https://technet.microsoft.com/en-us/sysinternals/bb896649.aspx Domain admin permissions This small script PsExec.exe \\* -s cmd /C echo N | gpupdate /force What this script does: Remotely runs  gpupdate /force  on all workstations Selects "N" if it asks to logoff user When you run it, you’ll see some output like:  Starting cmd on PC1-USRNAME... on PC1-USRNAME... cmd exited on PC1-USRNAME with error code 0. “ error code...

Etherchannel (Port Channel) on Cisco ASA

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Thanks to: http://www.amirmontazeri.com/ Generally Cisco ASA has one Management interface and four Gigabit Interfaces, but in modern systems and scalable Infrastructures you will need more than four Interfaces. To overcome this limitation you can configure some VLANs and trunk them to an Interfaces. This was a standard solution to this problem, however since ASA version 8.4.2 you are able to use Ether Channel to solve this problem. The benefit of Ether Channel or Port Channel is that you are able to configure redundancy and load balancing in the same time; all four ASA Interfaces will be bundle to a link in the Layer 2 then you assign all VLANs directly to the Port Channel and so they applied to all Interfaces of ASA . The ASA distributes the traffics to all Interfaces, which means you have the functioning Load balancing, furthermore if you lost one or two Interface the whole traffics will be distribute to the Interfaces which are available. If you run the Port Channel o...