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As is sometimes the case, the idea for this article originated with a student question I received during one of the Securing Networks with ASA Fundamentals classes I have taught this summer. The course material mentions a simple scenario whereby IP Telephony traffic...
Adding a new computer to an Active Directory domain can be a disruptive process, particularly if that computer is part of a large, high-speed deployment. Djoin.exe is a command line tool that permits the joining of a Windows 7 or Server 2008 R2 computer to Active Dir...
Windows Software Update Services (WSUS) is commonly used to distribute security patches and updates for Windows operating systems and Microsoft applications. WSUS is a web application that runs within Internet Information Services (IIS) on Windows Server. When client...
I recently came across an opportunity to use a relatively new feature in Cisco Unified Communications Manager (CUCM). Suppose you are the telecom administrator at a community hospital. During business hours, the Facilities Department is staffed and team members simpl...
Occasionally as I'm teaching a Cisco training class, I get an idea for a blog post and it happened again this week. The Securing Networks with ASA Fundamentals curriculum is mostly based on the Adaptive Security Device Manager (ASDM). While the class describes the us...
Windows Vista introduced AERO, a desktop experience that had four major elements; Windows Flip, Windows Filmstrip, AERO Glass transparency and fully realized thumbnail views on the Taskbar. Windows 7 added several new features to AERO, including AERO Snap, AERO Shake...
The subject of this week’s post was actually prompted by a question from a former colleague. Soon after the PIX Firewall added support for IPSec Virtual Private Networks, a command was added to the command-line, sysopt connection permit-ipsec. This command was subse...
Even in professionally managed network environments it is still possible for mistakes to happen. If an Active Directory object such as a user or computer account is accidentally deleted network access will be lost. Worker productivity will decline until the account...
Windows 7 can be a good file server on very small workgroup networks. Although Windows 7 is limited to only 10 concurrent client connections as a file server it can do a good job making files accessible over a network. Windows 7 shares a great deal of code with Windo...
Learn how to calculate QOS Bandwidth Percent vs Bandwidth Remaining Percent using a Cisco-defined formula. Read on for answers and examples from the experts at Global Knowledge!