Palo Alto Layer 3 deployment


Layer 3 is the classical deployment method for the PA firewall, and it is always considered the standard and most powerful deployment method because it has all of the functionalities, while other deployment methods have some limitations (example of the other deployment methods are virtual wire, layer 2, etc …)

In this tutorial, I will explain Layer 3 Interfaces deployment.

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Exchange Server Grant the Send As Permission for a Mailbox

Exchange Server Grant the Send As Permission for a Mailbox

At some cases is necessary to send email on behalf of other user or distribution group without exposing your own email address on the message header, Administrator can give the user  “Send As” permissions.


Install macOS X on VM


For many times my students asked me for the possibility to host (run) mac os on intel processor and/or hyper visor. to get familiar with os setting on their lab environments
the answer was Yes.
I have installed before (Leopard, Mountain Lion, El Capitan and Sierra) in my lab in order to give my students the opportunity to get familiar with macOS X and gain hands on experience.
This time I decided to post and share with you  the installation steps for macOS on a VM and the initial configuration


Microsoft Visual SourceSafe 6.0 -Undo Someone Else’s Check Out

Microsoft Visual SourceSafe 6.0 -Undo Someone Else’s Check Out


As a VSS administrator from time-to-time you may asked to undo someone else’s checked out file for many reasons; The person may left the company on vocation and he checked out these files in Visual Source Safe (VSS), but did not check them back in. As a result, Visual Studio won’t let others to make any changes to these files.

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Forefront Threat Management Gateway


Forefront Threat Management Gateway (TMG) 2010 is an integrated edge security gateway from Microsoft. It is a Common Criteria certified (EAL4+) enterprise-class application-layer firewall that includes support for proxy services (forward and reverse proxy), content caching, and VPN (both site-to-site and remote access). Forefront TMG is licensed per processor; no client access licenses are required. It can be deployed in all of these roles, or any subset of them.