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"I recently learned something about NASes that buyers looking to use these products for database and other simultaneous-file-access applications should know about. The issue is how Opportunistic Locking ("oplocks") are handled." "Opportunistic locks (oplocks) are a characteristic of theLAN Manager networking protocol implemented in the 32-Bit Windows family of operating system environments. Bascially, oplocks are guarantees made by a server for a shared logical volume to its clients. These guarantees inform the Client that a file's content will not be allowed to be changed by the server, or if some change is imminent, the client will be notified before the change is allowed to proceed."

"ArcSight Logger is the first Universal Log Management solution that unifies searching, reporting, alerting and analysis across any type of enterprise log data, making it unique in its ability to collect, analyze and store massive amounts of data generated by modern networks. It supports multiple deployment options and can be deployed as an appliance and as software."

"The Managed Switch Port Mapping tool is designed to communicate with a managed ethernet switch using SNMPv1/v2c and map the physical port connections to MAC and IP addresses of the attached devices. The software is designed for use on Microsoft Windows® operating systems."

"AD Tidy is a completely free tool that I created to help other IT Pros out. It can be used to identify when user/computer accounts last logged on to the network and can tidy up these accounts in various different ways."

"Xinorbis is a simple but powerful (free) hard disk analyser. Using a sophisticated mix of graphs, tables and tree displays, it gives the user a complete overview of the contents of a hard disk, folder, removable or network drive."

"This table contains a list of systems, motherboards, storage controllers and network cards that have been tested and found to work with ESX 4.x or ESXi 4.x Installable. Please check out the source column for a system you are considering using as some systems will include special steps to enable ESX / ESXi to run on that system or have other issues to overcome. None of these systems are supported by VMWare for running ESX."

How to set up a Windows RADIUS server to authenticate network client devices.

"Automatically backup files, directories, even entire drives! Karen's Replicator copies selected files from one drive/folder to another. Source and Destination folders can reside anywhere on your network."

Person recently had occasion to put a routing switch into a DMZ environment, which prompted him to research how to harden it. This document explains some of the steps he's taken to ensure the switch is secure.

"MenuMeters is a set of CPU, memory, disk, and network monitoring tools for Mac OS X"

"Monitor Wi-Fi with Lion's hidden tool "

"Virtual Router turns any Windows 7 or Windows 2008 R2 Computer into a Wifi Hot Spot using Windows 7's Wireless Hosted Network (Virtual Wifi) technology."

"Save iPhone, iPad and iPod Touch app data, voicemail, text messages, iMessages, call log, notes, contacts, music and photos to your Mac."

To set a static ARP entry, the command used to be arp -s IP MAC, but on Server 2008 R2 and perhaps others back to Windows 7/Server 2008, this command may not work even if Run as Admin. However, the netsh commands in this Q&A provide alternate syntax that does work for the same purpose.

Mac Imaging and Deployment

Wifi scanner and WLAN troubleshooter