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NTFS • Windows Reinstallation – Bypass ACL • Administrators Privilege – Bypass Ownership
Windows Encrypting File System Motivation • Laptops are very integrated in enterprises… • Stolen/lost computers loaded with confidential/business data • Data Privacy Issues • Offline Access – Bypass NTFS • Windows reinstallation – Bypass ACL • Administrators privilege – Bypass Ownership www.winitor.com 01 March 2010 Windows Encrypting File System Mechanism • Principle • A random - unique - symmetric key encrypts the data • An asymmetric key encrypts the symmetric key used to encrypt the data • Combination of two algorithms • Use their strengths • Minimize their weaknesses • Results • Increased performance • Increased security Asymetric Symetric Data www.winitor.com 01 March 2010 Windows Encrypting File System Characteristics • Confortable • Applying encryption is just a matter of assigning a file attribute www.winitor.com 01 March 2010 Windows Encrypting File System Characteristics • Transparent • Integrated into the operating system • Transparent to (valid) users/applications Application Win32 Crypto Engine NTFS EFS &.[ßl}d.,*.c§4 $5%2=h#<.. www.winitor.com 01 March 2010 Windows Encrypting File System Characteristics • Flexible • Supported at different scopes • File, Directory, Drive (Vista?) • Files can be shared between any number of users • Files can be stored anywhere • local, remote, WebDav • Files can be offline • Secure • Encryption and Decryption occur in kernel mode • Keys are never paged • Usage of standardized cryptography services www.winitor.com 01 March 2010 Windows Encrypting File System Availibility • At the GUI, the availibility -
Storage Administration Guide Storage Administration Guide SUSE Linux Enterprise Server 12 SP4
SUSE Linux Enterprise Server 12 SP4 Storage Administration Guide Storage Administration Guide SUSE Linux Enterprise Server 12 SP4 Provides information about how to manage storage devices on a SUSE Linux Enterprise Server. Publication Date: September 24, 2021 SUSE LLC 1800 South Novell Place Provo, UT 84606 USA https://documentation.suse.com Copyright © 2006– 2021 SUSE LLC and contributors. All rights reserved. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or (at your option) version 1.3; with the Invariant Section being this copyright notice and license. A copy of the license version 1.2 is included in the section entitled “GNU Free Documentation License”. For SUSE trademarks, see https://www.suse.com/company/legal/ . All other third-party trademarks are the property of their respective owners. Trademark symbols (®, ™ etc.) denote trademarks of SUSE and its aliates. Asterisks (*) denote third-party trademarks. All information found in this book has been compiled with utmost attention to detail. However, this does not guarantee complete accuracy. Neither SUSE LLC, its aliates, the authors nor the translators shall be held liable for possible errors or the consequences thereof. Contents About This Guide xii 1 Available Documentation xii 2 Giving Feedback xiv 3 Documentation Conventions xiv 4 Product Life Cycle and Support xvi Support Statement for SUSE Linux Enterprise Server xvii • Technology Previews xviii I FILE SYSTEMS AND MOUNTING 1 1 Overview -
Windows Command Prompt Cheatsheet
Windows Command Prompt Cheatsheet - Command line interface (as opposed to a GUI - graphical user interface) - Used to execute programs - Commands are small programs that do something useful - There are many commands already included with Windows, but we will use a few. - A filepath is where you are in the filesystem • C: is the C drive • C:\user\Documents is the Documents folder • C:\user\Documents\hello.c is a file in the Documents folder Command What it Does Usage dir Displays a list of a folder’s files dir (shows current folder) and subfolders dir myfolder cd Displays the name of the current cd filepath chdir directory or changes the current chdir filepath folder. cd .. (goes one directory up) md Creates a folder (directory) md folder-name mkdir mkdir folder-name rm Deletes a folder (directory) rm folder-name rmdir rmdir folder-name rm /s folder-name rmdir /s folder-name Note: if the folder isn’t empty, you must add the /s. copy Copies a file from one location to copy filepath-from filepath-to another move Moves file from one folder to move folder1\file.txt folder2\ another ren Changes the name of a file ren file1 file2 rename del Deletes one or more files del filename exit Exits batch script or current exit command control echo Used to display a message or to echo message turn off/on messages in batch scripts type Displays contents of a text file type myfile.txt fc Compares two files and displays fc file1 file2 the difference between them cls Clears the screen cls help Provides more details about help (lists all commands) DOS/Command Prompt help command commands Source: https://technet.microsoft.com/en-us/library/cc754340.aspx. -
System Calls System Calls
System calls We will investigate several issues related to system calls. Read chapter 12 of the book Linux system call categories file management process management error handling note that these categories are loosely defined and much is behind included, e.g. communication. Why? 1 System calls File management system call hierarchy you may not see some topics as part of “file management”, e.g., sockets 2 System calls Process management system call hierarchy 3 System calls Error handling hierarchy 4 Error Handling Anything can fail! System calls are no exception Try to read a file that does not exist! Error number: errno every process contains a global variable errno errno is set to 0 when process is created when error occurs errno is set to a specific code associated with the error cause trying to open file that does not exist sets errno to 2 5 Error Handling error constants are defined in errno.h here are the first few of errno.h on OS X 10.6.4 #define EPERM 1 /* Operation not permitted */ #define ENOENT 2 /* No such file or directory */ #define ESRCH 3 /* No such process */ #define EINTR 4 /* Interrupted system call */ #define EIO 5 /* Input/output error */ #define ENXIO 6 /* Device not configured */ #define E2BIG 7 /* Argument list too long */ #define ENOEXEC 8 /* Exec format error */ #define EBADF 9 /* Bad file descriptor */ #define ECHILD 10 /* No child processes */ #define EDEADLK 11 /* Resource deadlock avoided */ 6 Error Handling common mistake for displaying errno from Linux errno man page: 7 Error Handling Description of the perror () system call. -
System Calls and I/O
System Calls and I/O CS 241 January 27, 2012 Copyright ©: University of Illinois CS 241 Staff 1 This lecture Goals Get you familiar with necessary basic system & I/O calls to do programming Things covered in this lecture Basic file system calls I/O calls Signals Note: we will come back later to discuss the above things at the concept level Copyright ©: University of Illinois CS 241 Staff 2 System Calls versus Function Calls? Copyright ©: University of Illinois CS 241 Staff 3 System Calls versus Function Calls Function Call Process fnCall() Caller and callee are in the same Process - Same user - Same “domain of trust” Copyright ©: University of Illinois CS 241 Staff 4 System Calls versus Function Calls Function Call System Call Process Process fnCall() sysCall() OS Caller and callee are in the same Process - Same user - OS is trusted; user is not. - Same “domain of trust” - OS has super-privileges; user does not - Must take measures to prevent abuse Copyright ©: University of Illinois CS 241 Staff 5 System Calls System Calls A request to the operating system to perform some activity System calls are expensive The system needs to perform many things before executing a system call The computer (hardware) saves its state The OS code takes control of the CPU, privileges are updated. The OS examines the call parameters The OS performs the requested function The OS saves its state (and call results) The OS returns control of the CPU to the caller Copyright ©: University of Illinois CS 241 Staff 6 Steps for Making a System Call -
Command Line Interface Specification Windows
Command Line Interface Specification Windows Online Backup Client version 4.3.x 1. Introduction The CloudBackup Command Line Interface (CLI for short) makes it possible to access the CloudBackup Client software from the command line. The following actions are implemented: backup, delete, dir en restore. These actions are described in more detail in the following paragraphs. For all actions applies that a successful action is indicated by means of exit code 0. In all other cases a status code of 1 will be used. 2. Configuration The command line client needs a configuration file. This configuration file may have the same layout as the configuration file for the full CloudBackup client. This configuration file is expected to reside in one of the following folders: CLI installation location or the settings folder in the CLI installation location. The name of the configuration file must be: Settings.xml. Example: if the CLI is installed in C:\Windows\MyBackup\, the configuration file may be in one of the two following locations: C:\Windows\MyBackup\Settings.xml C:\Windows\MyBackup\Settings\Settings.xml If both are present, the first form has precedence. Also the customer needs to edit the CloudBackup.Console.exe.config file which is located in the program file directory and edit the following line: 1 <add key="SettingsFolder" value="%settingsfilelocation%" /> After making these changes the customer can use the CLI instruction to make backups and restore data. 2.1 Configuration Error Handling If an error is found in the configuration file, the command line client will issue an error message describing which value or setting or option is causing the error and terminate with an exit value of 1. -
Active @ UNDELETE Users Guide | TOC | 2
Active @ UNDELETE Users Guide | TOC | 2 Contents Legal Statement..................................................................................................4 Active@ UNDELETE Overview............................................................................. 5 Getting Started with Active@ UNDELETE........................................................... 6 Active@ UNDELETE Views And Windows......................................................................................6 Recovery Explorer View.................................................................................................... 7 Logical Drive Scan Result View.......................................................................................... 7 Physical Device Scan View................................................................................................ 8 Search Results View........................................................................................................10 Application Log...............................................................................................................11 Welcome View................................................................................................................11 Using Active@ UNDELETE Overview................................................................. 13 Recover deleted Files and Folders.............................................................................................. 14 Scan a Volume (Logical Drive) for deleted files..................................................................15 -
File Manager Manual
FileManager Operations Guide for Unisys MCP Systems Release 9.069W November 2017 Copyright This document is protected by Federal Copyright Law. It may not be reproduced, transcribed, copied, or duplicated by any means to or from any media, magnetic or otherwise without the express written permission of DYNAMIC SOLUTIONS INTERNATIONAL, INC. It is believed that the information contained in this manual is accurate and reliable, and much care has been taken in its preparation. However, no responsibility, financial or otherwise, can be accepted for any consequence arising out of the use of this material. THERE ARE NO WARRANTIES WHICH EXTEND BEYOND THE PROGRAM SPECIFICATION. Correspondence regarding this document should be addressed to: Dynamic Solutions International, Inc. Product Development Group 373 Inverness Parkway Suite 110, Englewood, Colorado 80112 (800)641-5215 or (303)754-2000 Technical Support Hot-Line (800)332-9020 E-Mail: [email protected] ii November 2017 Contents ................................................................................................................................ OVERVIEW .......................................................................................................... 1 FILEMANAGER CONSIDERATIONS................................................................... 3 FileManager File Tracking ................................................................................................ 3 File Recovery .................................................................................................................... -
Alias Manager 4
CHAPTER 4 Alias Manager 4 This chapter describes how your application can use the Alias Manager to establish and resolve alias records, which are data structures that describe file system objects (that is, files, directories, and volumes). You create an alias record to take a “fingerprint” of a file system object, usually a file, that you might need to locate again later. You can store the alias record, instead of a file system specification, and then let the Alias Manager find the file again when it’s needed. The Alias Manager contains algorithms for locating files that have been moved, renamed, copied, or restored from backup. Note The Alias Manager lets you manage alias records. It does not directly manipulate Finder aliases, which the user creates and manages through the Finder. The chapter “Finder Interface” in Inside Macintosh: Macintosh Toolbox Essentials describes Finder aliases and ways to accommodate them in your application. ◆ The Alias Manager is available only in system software version 7.0 or later. Use the Gestalt function, described in the chapter “Gestalt Manager” of Inside Macintosh: Operating System Utilities, to determine whether the Alias Manager is present. Read this chapter if you want your application to create and resolve alias records. You might store an alias record, for example, to identify a customized dictionary from within a word-processing document. When the user runs a spelling checker on the document, your application can ask the Alias Manager to resolve the record to find the correct dictionary. 4 To use this chapter, you should be familiar with the File Manager’s conventions for Alias Manager identifying files, directories, and volumes, as described in the chapter “Introduction to File Management” in this book. -
File Handling in Python
hapter C File Handling in 2 Python There are many ways of trying to understand programs. People often rely too much on one way, which is called "debugging" and consists of running a partly- understood program to see if it does what you expected. Another way, which ML advocates, is to install some means of understanding in the very programs themselves. — Robin Milner In this Chapter » Introduction to Files » Types of Files » Opening and Closing a 2.1 INTRODUCTION TO FILES Text File We have so far created programs in Python that » Writing to a Text File accept the input, manipulate it and display the » Reading from a Text File output. But that output is available only during » Setting Offsets in a File execution of the program and input is to be entered through the keyboard. This is because the » Creating and Traversing a variables used in a program have a lifetime that Text File lasts till the time the program is under execution. » The Pickle Module What if we want to store the data that were input as well as the generated output permanently so that we can reuse it later? Usually, organisations would want to permanently store information about employees, inventory, sales, etc. to avoid repetitive tasks of entering the same data. Hence, data are stored permanently on secondary storage devices for reusability. We store Python programs written in script mode with a .py extension. Each program is stored on the secondary device as a file. Likewise, the data entered, and the output can be stored permanently into a file. -
Run-Commands-Windows-10.Pdf
Run Commands Windows 10 by Bettertechtips.com Command Action Command Action documents Open Documents Folder devicepairingwizard Device Pairing Wizard videos Open Videos Folder msdt Diagnostics Troubleshooting Wizard downloads Open Downloads Folder tabcal Digitizer Calibration Tool favorites Open Favorites Folder dxdiag DirectX Diagnostic Tool recent Open Recent Folder cleanmgr Disk Cleanup pictures Open Pictures Folder dfrgui Optimie Drive devicepairingwizard Add a new Device diskmgmt.msc Disk Management winver About Windows dialog dpiscaling Display Setting hdwwiz Add Hardware Wizard dccw Display Color Calibration netplwiz User Accounts verifier Driver Verifier Manager azman.msc Authorization Manager utilman Ease of Access Center sdclt Backup and Restore rekeywiz Encryption File System Wizard fsquirt fsquirt eventvwr.msc Event Viewer calc Calculator fxscover Fax Cover Page Editor certmgr.msc Certificates sigverif File Signature Verification systempropertiesperformance Performance Options joy.cpl Game Controllers printui Printer User Interface iexpress IExpress Wizard charmap Character Map iexplore Internet Explorer cttune ClearType text Tuner inetcpl.cpl Internet Properties colorcpl Color Management iscsicpl iSCSI Initiator Configuration Tool cmd Command Prompt lpksetup Language Pack Installer comexp.msc Component Services gpedit.msc Local Group Policy Editor compmgmt.msc Computer Management secpol.msc Local Security Policy: displayswitch Connect to a Projector lusrmgr.msc Local Users and Groups control Control Panel magnify Magnifier -
AT Command User Guide 80591ST10886A Rev
LN940 SERIES AT Command User Guide 80591ST10886A Rev. 1.4 – 2018-04-05 ] 7 .201 Mod. 0806 2017-01 Rev.6 01 [ SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE NOTICES LIST While reasonable efforts have been made to assure the accuracy of this document, Telit assumes no liability resulting from any inaccuracies or omissions in this document, or from use of the information obtained herein. The information in this document has been carefully checked and is believed to be reliable. However, no responsibility is assumed for inaccuracies or omissions. Telit reserves the right to make changes to any products described herein and reserves the right to revise this document and to make changes from time to time in content hereof with no obligation to notify any person of revisions or changes. Telit does not assume any liability arising out of the application or use of any product, software, or circuit described herein; neither does it convey license under its patent rights or the rights of others. It is possible that this publication may contain references to, or information about Telit products (machines and programs), programming, or services that are not announced in your country. Such references or information must not be construed to mean that Telit intends to announce such Telit products, programming, or services in your country. COPYRIGHTS This instruction manual and the Telit products described in this instruction manual may be, include or describe copyrighted Telit material, such as computer programs stored in semiconductor memories or other media. Laws in the Italy and other countries preserve for Telit and its licensors certain exclusive rights for copyrighted material, including the exclusive right to copy, reproduce in any form, distribute and make derivative works of the copyrighted material.