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Optimal Filtering for Patterned Displays John C
IEEE SIGNAL PROCESSING LETTERS, VOL. 7, NO. 7, JULY 2000 179 Optimal Filtering for Patterned Displays John C. Platt Abstract—Displays with repeating patterns of colored subpixels the display. The optimal filtering chooses the to be “close” gain spatial resolution by setting individual subpixels rather than to the as measured by a perceptual error metric. by setting entire pixels. This paper describes optimal filtering The error between and is measured in a perceptu- that produces subpixel values from a high-resolution input image. The optimal filtering is based on an error metric inspired by ally relevant color space. There is evidence that the human vi- psychophysical experiments. Minimizing the error metric yields sual system separates image data into a brightness channel and a linear system of equations, which can be expressed as a set of two opponent color channels: red minus green and blue minus filters. These filters provide the same quality of font display as yellow [4]. The error in the opponent color space is standard anti-aliasing at a point size 25% smaller. This optimiza- tion forms the filter design framework for Microsoft’s ClearType. Index Terms—Anti-aliasing, ClearType, fonts, image processing, (1) liquid crystal displays, optimal filtering, patterned displays. where and are matrices that transform and into I. INTRODUCTION an opponent color space. The matrix encodes the spatial pattern of subpixel color. OR PATTERNED displays such as LCD’s, a pixel is a The error is then transformed into frequency space. The F concept, not a physical device. A patterned display con- quadratic norm of the error is measured independently at each sists of a repeating pattern of singly-colored subpixels, which frequency. -
Turning on Bitlocker Drive Encryption on Windows Computers Before You
Turning on BitLocker drive encryption on Windows computers Before you start a couple of VERY important notes... a) Make sure you have backups before you start just in case anything goes wrong (as it’s much harder, usually impossible, to recover data from an encrypted drive - as you would hope and expect). b) Make sure you keep a safe copy of the encryption key And please provide a copy for the IT Office to store for use in the event of a problem or, if you choose to let Microsoft keep it, make sure you know your login details for Microsoft. If you forget the passwords and can not recover a copy of your key you will loose all your files (which is another reason to keep backups). If you reset BitLocker and a new encryption key is set - please remember to provide a copy to the IT Office Windows 7, 8 and 10 have BitLocker Built in, this can be used to encrypt the hard drive. It just needs to be activated following the steps shown below. 1) Enable BitLocker for a Drive The easiest way to enable BitLocker for a drive is to right-click the drive in a File Explorer window, and then choose the “Turn on BitLocker” command. If you don’t see this option on your context menu. Then click on the windows icon and where it says “Type here to search” type in “encryption” and click on “Manage BitLocker” from the list of options that appears. It’s just that simple. The wizard that pops up walks you through selecting several options, which we’ve broken down into the sections that follow. -
Tools for Managing Acls Jesper M Johansson
Security watch Tools for managing ACLs Jesper M Johansson Before I go into how to save or re- In Windows, access control lists (ACLs) store ACLs, let me first explore why it is so difficult. Let’s say you have a hier- give you extremely fine control over archy containing user data for students at a local college. You save the ACL on the ability of users and processes to 1 February. On 17 April you discover that somehow the ACL has been cor- use resources such as files and folders. rupted and you go to restore it from the saved copy. What complications Managing ACLs can be one of the more could there be with this operation? First, the new quarter started on complicated tasks related to protecting the 2 April. About 15 per cent of your students graduated; consequently, security of your users’ systems. Fortunately, their directories no longer exist. Thus, you have ACLs in the backup file that there are a number of useful utilities are invalid. You also have a batch of new students, another 15 per cent, that that help automate and simplify tasks granular permissions introduced with started with the new quarter. They surrounding permissions and ACLs. Windows 2000, making this an update have home directories now, but no Most readers are familiar with the that is about seven years overdue. ACLs in the backup file. What should venerable cacls.exe tool that has been Surprisingly, in spite of being dep- their ACLs be? Then of course you in every version of Windows NT since recated, cacls.exe does actually include have the 70 per cent that are still there, it first came out. -
Powershell Scripting Language Course Proposal for Tallinn University of Technology
TALLINN UNIVERSITY OF TECHNOLOGY School of Information Technologies Riivo Kiljak 178071IABM POWERSHELL SCRIPTING LANGUAGE COURSE PROPOSAL FOR TALLINN UNIVERSITY OF TECHNOLOGY Master’s thesis Supervisor: Siim Vene MSc Tallinn 2019 TALLINNA TEHNIKAULIKOOL¨ Infotehnoloogia teaduskond Riivo Kiljak 178071IABM POWERSHELLI SKRIPTIMISKEELE KURSUSE ETTEPANEK TALLINNA TEHNIKAULIKOOLILE¨ Magistrito¨o¨ Juhendaja: Siim Vene MSc Tallinn 2019 Author’s Declaration of Originality I hereby certify that I am the sole author of this thesis. All the used materials, references to the literature and the work of others have been referred to. This thesis has not been presented for examination anywhere else. Author: Riivo Kiljak 07.05.2019 3 Abstract In the thesis, a recommendation is made to establish a new course at TalTech. The course is intended to teach the PowerShell scripting language to students, most importantly in the IT Systems Administration programme. Course material is proposed in the form of lecture slides, home assignments and knowledge tests. All three of which are available in the appendices of the paper. Design science is used to pass iterations of improving the content prior the the paper publishing. Academic literature is analysed to determine the included and excluded topics and the teaching methodology. More- over, input is acquired from scrutinising public information on Microsoft’s official PowerShell courses and interviewing subject matter experts who use PowerShell at local companies. The course material is provided written in LATEX which means that it can be conveniently modified, version controlled and distributed in the PDF format. Although the proposed course is seen as an online course hosted on Moodle, argumentation is made suggesting a combination with classroom seminars is likely to result in better learning outcomes at the cost of scalability. -
Restoration Onto Different Hardware (PDF)
Restoration onto different Hardware Quick and easy system restore with O&O DiskImage Table of contents System restoration using boot media ...................................................................................... 1 Restoration onto different hardware ....................................................................................... 2 Limitations when restoring onto different hardware ................................................................................................................. 3 Automatic update............................................................................................................................... ............................................. 3 Manual adaptation .......................................................................................................................................................................... 4 Enable automatic adaptation on changed hardware (M.I.R.) .................................................................................................... 4 Assistance when error messages occur during booting .......................................................... 7 I System restoration using boot media Disks where you save your private and business data can be quickly imaged and restored in the event of a crash or hardware damage. Creating an image of your entire computer or the system partition is also very easy. To restore an image of a Windows system, you’ll need to start O&O DiskImage directly from a bootable medium *. *Note You’ll need to -
Ubuntu Kung Fu
Prepared exclusively for Alison Tyler Download at Boykma.Com What readers are saying about Ubuntu Kung Fu Ubuntu Kung Fu is excellent. The tips are fun and the hope of discov- ering hidden gems makes it a worthwhile task. John Southern Former editor of Linux Magazine I enjoyed Ubuntu Kung Fu and learned some new things. I would rec- ommend this book—nice tips and a lot of fun to be had. Carthik Sharma Creator of the Ubuntu Blog (http://ubuntu.wordpress.com) Wow! There are some great tips here! I have used Ubuntu since April 2005, starting with version 5.04. I found much in this book to inspire me and to teach me, and it answered lingering questions I didn’t know I had. The book is a good resource that I will gladly recommend to both newcomers and veteran users. Matthew Helmke Administrator, Ubuntu Forums Ubuntu Kung Fu is a fantastic compendium of useful, uncommon Ubuntu knowledge. Eric Hewitt Consultant, LiveLogic, LLC Prepared exclusively for Alison Tyler Download at Boykma.Com Ubuntu Kung Fu Tips, Tricks, Hints, and Hacks Keir Thomas The Pragmatic Bookshelf Raleigh, North Carolina Dallas, Texas Prepared exclusively for Alison Tyler Download at Boykma.Com Many of the designations used by manufacturers and sellers to distinguish their prod- ucts are claimed as trademarks. Where those designations appear in this book, and The Pragmatic Programmers, LLC was aware of a trademark claim, the designations have been printed in initial capital letters or in all capitals. The Pragmatic Starter Kit, The Pragmatic Programmer, Pragmatic Programming, Pragmatic Bookshelf and the linking g device are trademarks of The Pragmatic Programmers, LLC. -
Windows 7 Operating Guide
Welcome to Windows 7 1 1 You told us what you wanted. We listened. This Windows® 7 Product Guide highlights the new and improved features that will help deliver the one thing you said you wanted the most: Your PC, simplified. 3 3 Contents INTRODUCTION TO WINDOWS 7 6 DESIGNING WINDOWS 7 8 Market Trends that Inspired Windows 7 9 WINDOWS 7 EDITIONS 10 Windows 7 Starter 11 Windows 7 Home Basic 11 Windows 7 Home Premium 12 Windows 7 Professional 12 Windows 7 Enterprise / Windows 7 Ultimate 13 Windows Anytime Upgrade 14 Microsoft Desktop Optimization Pack 14 Windows 7 Editions Comparison 15 GETTING STARTED WITH WINDOWS 7 16 Upgrading a PC to Windows 7 16 WHAT’S NEW IN WINDOWS 7 20 Top Features for You 20 Top Features for IT Professionals 22 Application and Device Compatibility 23 WINDOWS 7 FOR YOU 24 WINDOWS 7 FOR YOU: SIMPLIFIES EVERYDAY TASKS 28 Simple to Navigate 28 Easier to Find Things 35 Easy to Browse the Web 38 Easy to Connect PCs and Manage Devices 41 Easy to Communicate and Share 47 WINDOWS 7 FOR YOU: WORKS THE WAY YOU WANT 50 Speed, Reliability, and Responsiveness 50 More Secure 55 Compatible with You 62 Better Troubleshooting and Problem Solving 66 WINDOWS 7 FOR YOU: MAKES NEW THINGS POSSIBLE 70 Media the Way You Want It 70 Work Anywhere 81 New Ways to Engage 84 INTRODUCTION TO WINDOWS 7 6 WINDOWS 7 FOR IT PROFESSIONALS 88 DESIGNING WINDOWS 7 8 WINDOWS 7 FOR IT PROFESSIONALS: Market Trends that Inspired Windows 7 9 MAKE PEOPLE PRODUCTIVE ANYWHERE 92 WINDOWS 7 EDITIONS 10 Remove Barriers to Information 92 Windows 7 Starter 11 Access -
Pass-The-Hash Attacks
Pass-the-Hash Attacks Michael Grafnetter www.dsinternals.com Agenda . PtH Attack Anatomy . Mitigation – Proactive – Reactive . Windows 10 + Windows Server 2016 PtH History and Future . 1988 – Microsoft releases Lan Manager . 1997 – Pass-the-Hash demonstrated using a modified Samba . 2007 – Benjamin Delpy releases Mimikatz . 2008 – Pass-the-Ticket attack demonstrated . 2012 – Microsoft releases Pass-the-Hash guidance . 2013 – Windows contains built-in defenses against PtH . 2015 – Michael Grafnetter releases the DSInternals tools ;-) . 2016 – More defense mechanisms coming to Windows PtH Attack Anatomy Theft Use Compromise Lateral and Vertical Movement Metasploit Framework Metasploit Framework Mimikatz DEMO Pass-the-Hash + RDP LSASS NTLM Hashes Passing the Hash PtH Attack Premises Single Symmetric Pass-the-Hash Sign-On Cryptography Attack Surface Stealing the Hash Credentials Lifecycle / Attack Vectors Credentials Lifecycle / Attack Vectors Hashes in SAM/AD Authentication Method Hash Function Salted LM DES NO NTLM, NTLMv2 MD4 NO Kerberos (RC4) MD4 NO Kerberos (AES) PBKDF2 (4096*HMAC_SHA1) YES Digest MD5 YES Active Directory Database - Offline . Files – C:\Windows\NTDS\ntds.dit – C:\Windows\System32\config\SYSTEM . Acquire – Locally: ntdsutil IFM – Remotely: WMI (Win32_Process), psexec – Offline: VHDs, VMDKs, Backups . Extract – Windows: DSInternals PowerShell Module – Linux: NTDSXtract DEMO Extracting hashes from ntds.dit GUI Tools KRBTGT Account Proactive Measures . Encryption . RODC . Backup protection . Regular password changes Active Directory Database - Online . MS-DRSR/RPC Go to www.dsinternals.com for demo ;-) Proactive Measures . Avoid using administrative accounts . Do not run untrusted SW . Do not delegate the right to replicate directory changes . Use an application firewall / IDS ??? SAM Database . Offline – Files • C:\Windows\System32\config\SAM • C:\Windows\System32\config\SYSTEM – Tools • Windows Password Recovery . -
Microsoft Windows FIPS 140 Validation Security Policy Document
Secure Kernel Code Integrity Security Policy Document Microsoft Windows FIPS 140 Validation Microsoft Windows 10 (Creators Update, Fall Creators Update, April 2018 Update) Microsoft Windows Server (versions 1703, 1709, and 1803) Non-Proprietary Security Policy Document Version Number 1.4 Updated On April 4, 2019 © 2018 Microsoft. All Rights Reserved Page 1 of 24 This Security Policy is non-proprietary and may be reproduced only in its original entirety (without revision). Secure Kernel Code Integrity Security Policy Document The information contained in this document represents the current view of Microsoft Corporation on the issues discussed as of the date of publication. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information presented after the date of publication. This document is for informational purposes only. MICROSOFT MAKES NO WARRANTIES, EXPRESS OR IMPLIED, AS TO THE INFORMATION IN THIS DOCUMENT. Complying with all applicable copyright laws is the responsibility of the user. This work is licensed under the Creative Commons Attribution-NoDerivs- NonCommercial License (which allows redistribution of the work). To view a copy of this license, visit http://creativecommons.org/licenses/by-nd-nc/1.0/ or send a letter to Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA. Microsoft may have patents, patent applications, trademarks, copyrights, or other intellectual property rights covering subject matter in this document. Except as expressly provided in any written license agreement from Microsoft, the furnishing of this document does not give you any license to these patents, trademarks, copyrights, or other intellectual property. -
Wireless GPON ONT
GPON 4 Ethernet Ports | 1 PON | VoIP | 802.11n | 802.11ac GRG-4260us Wireless GPON ONT The GRG-4260us is an advanced GPON ONT gateway with 1 GPON WAN port, 4 Gigabit Ethernet LAN ports, 2 FXS ports, 1 USB2.0 Host and IEEE802.11 series Wi-Fi. The Wi-Fi not only provides an 802.11n 2T2R 2.4GHz Band which is backward compatible with 802.11g/b but also supports high performance 802.11ac with 3T3R design at 5GHz band. GRG-4260us provides powerful functions which telephone companies have applied on the xDSL CPE IAD device, and remote management utilities (such as TR-069) for network management and maintenance. FEATURES .UPnP, IPv6 compliant .WPA and 802.1x/ WPS 2.0/ Radius Client .PhyR and G.INP .NAT/PAT .Supports TR-069/TR-098/TR-181i2 .IGMP Proxy/ Fast Leave/ Snooping/ Proxy .Configuration backup and restoration .DHCP Server/Client .Web-based management (HTTPS/HTTP) .Embedded SNMP agent .Supports remote administration, automatic .IP/MAC address filtering firmware upgrade and configuration .Static route/ RIP/ RIP v2 routing functions .Integrated 802.11ac AP (backward compatible .DNS Proxy/Relay with 802.11a/n) www.comtrend.com GRG-4260us 4 Ethernet Ports | 1 PON | VoIP | 802.11n | 802.11ac SPECIFICATIONS Hardware Networking Protocols .PPPoE pass-through, Multiple PPPoE sessions on single WAN .GPON X 1 Bi-directional Optical (1310nm/1490nm) .RJ-45 X 4 for LAN, (10/100/1000 Base T) interface .RJ-11 X 2 for FXS (optional) .PPPoE filtering of non-PPPoE packets between WAN and LAN .USB2.0 host X 1 .Transparent bridging between all LAN and WAN interfaces -
How to Convert Desktop Apps to Universal Windows Platform Apps with Desktop Bridge
How to convert desktop apps to Universal Windows Platform apps with Desktop Bridge If you're looking to bring your traditional app to the Universal Windows Platform, this guide walks you through the steps to use the DesktopAppConverter to convert your app. On Windows 10, Microsoft is not only adding new features and making the operating system more secure, but it's also investing on making the Windows Store the single place for users to acquire apps. The caveat with the Windows Store is that it doesn't include support for distribution of traditional desktop applications -- you're only able to download Universal Windows Platform (UWP) apps. However, Microsoft is making some changes, and now thanks to Desktop Bridge, we're slowly starting to see desktop apps and tools available in the Store. What's Desktop Bridge? How does Desktop Bridge works? Things you need before converting an app How to prepare your computer to convert apps How to convert desktop apps into Windows Store apps How to install a converted app on Windows 10 What's Desktop Bridge? It's all part of an initiative called Project Centennial, which now you know as Desktop Bridge. The new approach is essentially a "bridge" that let developers take traditional desktop applications and convert them into Universal Windows Platform (modern) apps. The idea behind Desktop Bridge is that great apps take time and effort, and if they're already working, Microsoft doesn't want you to abandon that code. With Desktop Bridge, you can take your existing desktop application (Win32, WPF, and Windows Forms), make a little modification (if necessary), and bring that great code to the new platform, which can also take advantage of many new features. -
CONESTOGA CABINET ASSEMBLY INFORMATION What Is Included with Your Cabinets: What Is Not Included with Your Cabinets
CONESTOGA CABINET ASSEMBLY INFORMATION We suggest you view the 4 minute assembly demonstration video on our web site to see how easily our high end custom cabinets are assembled. Before continuing, it is important to realize that Conestoga’s RTA cabinet is targeted at cabinet shops who would rather use this system than build their own custom cabinets from scratch. On one hand, this indicates that it’s a VERY high quality cabinet. On the other hand, it means Conestoga has made some assumptions that its user has certain level of cabinet making skills and knowledge which most homeowners may not possess. As a result, we feel the assembly instructions Conestoga details in their guide are incomplete. Therefore, we have compiled the following assembly information from our years of assembly experience with this product. Remember, as opposed to other Conestoga Re-sellers or sales agents, we actually use the product every day. So, if you have a question that is not answered here, just give us a call and we can talk you through it, send you images from our shop floor, diagrams or even helpful hardware items to assist you. If it gets frustrating, take some time away and give us a call or shoot us an email. Rest assured, we’ll get you through it! What is Included with Your Cabinets: Everything necessary to build the cabinet box. Drawer glides and necessary hardware/screws. Hinges and necessary hardware/screws. Doors, drawer fronts and drawer boxes. What is not included with Your Cabinets: Screws required to mount drawer fronts to the drawer boxes (we use self tapping wood screws 1-1/4” long, available at local home centers or hardware stores.