66 creating a captcha security image

... natural disasters such as tornados and hurricanes, and disasters caused by people such as unintentional or accidental acts, and intentional acts like vandalism and terrorism To plan for disaster ... the room and extract an account database from a server by using a boot startup disk or CD The attacker could then perform a brute force attack on the password hashes in the database and access ... External attacker scenario Without proper physical security of a building, an external attacker could enter a facility unnoticed, locate an unattended computer, and load a Trojan horse application...

Ngày tải lên: 21/12/2013, 19:15

... physically attacks a computer’s hard disk, or a process in an organization omits the application of service packs before deployment Additional reading For more information about change management, ... service packs and security updates for the operating system and applications will be released To maintain the baseline security configuration, install the service packs and security updates Decommissioning ... is also a risk that students may need to protect against If an attacker has physical control of a user’s computer, the user has lost the security battle Practice: Analyzing Risks to Computers Ask...

Ngày tải lên: 21/12/2013, 19:15

... has physical access to a computer can extract NTLM and LAN Manager password hash values from the Security Accounts Manager (SAM) database and attack the hashes offline by using commonly available ... disable its use Anyone who can manage a password to an account can, at any time, access all of the information that the account can access Who can obtain account information Account information ... domain service accounts Mitigate Use local accounts for services Attacker can use brute force to easily break LAN Manager password hashes Avoid Remove LAN Manager passwords from the SAM database...

Ngày tải lên: 18/01/2014, 05:20

... NTLM or LAN Manager, and then attack the password hashes offline Threat is easily carried out with little skill required Both attacks enable an attacker to obtain a valid user account and password ... Answers may vary Scenario Risk strategy Security response Attacker intercepts LAN Manager password hashes that were sent with NTLM authentication messages Avoid Remove LAN Manager password hashes ... using the account is the user who has been assigned that account or an attacker Often, you can only make the determination after the attacker has caused damage 6 Module 8: Creating a Security...

Ngày tải lên: 18/01/2014, 05:20

... the attacker replaces the password of the Administrator account in the local Security Accounts Manager (SAM) database The attacker then logs on to the laptop as Administrator and accesses the data ... points Data is vulnerable to threats from both external and internal attackers For example: External attacker scenario An external attacker steals a laptop from an employee’s car Using a floppy ... of time that your organization retains data and how you use redundant hardware and hardware replacement schedules to protect against loss of data due to hardware failure Additional reading For...

Ngày tải lên: 18/01/2014, 05:20

... Determine threats and analyze risks to data transmission Design security for data transmission 2 Module 10: Creating a Security Design for Data Transmission Lesson: Determining Threats and Analyzing ... transmit data across the network in your organization, the data becomes vulnerable to a variety of additional threats Attackers can potentially intercept transmitted data, depending on how and ... of traffic For example, an attacker who wants to gain knowledge about data as it is transmitted can passively monitor the network from within an organization This type of attack reveals data but...

Ngày tải lên: 18/01/2014, 05:20

... explain how a Land attack and a SYN flood attack (or SYN-ACK attack) can prevent users from retrieving their e-mail Use the Internet to locate information about how Land and SYN-ACK attacks affect ... source address on each new packet that is sent to generate additional traffic and deny legitimate traffic An attacker could use a SYN-ACK attack against the router, firewall, or Web server at Northwind ... circumvent the mail servers that use the organization’s firewall ! Additional reading Use and maintain antivirus software Third-party antivirus software can prevent attacks from such threats as viruses,...

Ngày tải lên: 18/01/2014, 05:20

Ngày tải lên: 07/04/2013, 17:11

... 14 // 15 InitializeComponent(); 16 17 // call the Fill() method of sqlDataAdapter1 18 // to populate dataSet11 with a DataTable named 19 // Customers 20 sqlDataAdapter1.Fill(dataSet11, "Customers"); ... data stored in dataView1 to dataGrid1 and allows dataGrid1 to access any data stored in dataView1 Figure 13.2: Setting the Properties of dataGrid1 Select View ➣ Code and set the Form1() ... "Customers"); 21 } Compile and run your form by pressing Ctrl+F5 Figure 13.3 shows the running form Notice that the information in the form comes from the DataView you created Figure 13.3: The running...

Ngày tải lên: 20/08/2013, 16:48

... possible for a teacher to create as many “class blogs” as deemed necessary to organize class materials For example, it must be possible for a teacher to create a blog for class notes and another for ... server space If one has HTML experience and server space, a few more options for creating the class are available that fall beyond the scope of this paper Features of the Blog-Based Class Before ... individual student blogs In order to save time when giving feedback, save a copy of the messages at an additional teacher-only blog If a class is taught for several years with different students, teachers...

Ngày tải lên: 06/09/2013, 05:10

... handles and user data (see GUIDATA) varargin command line arguments to untitled (see VARARGIN) Add this code Autogenerated code % Create the data to plot handles.peaks=peaks(35); handles.membrane=membrane; ... “Adding Code to the Opening Function” on page 2-20 and “Adding Code to the Callbacks” on page 2-22, contain examples You can share data between callbacks by storing the data in the MATLAB handles ... callback, and an output function callback Each callback is a subfunction that initially consists of a framework that contains just a function definition You must add code to the callbacks to make them...

Ngày tải lên: 29/09/2013, 20:20

... automatically create a total for the year; you would have to create a calculation for the annual total 10 CHAPTER ■ CREATING A PIVOT TABLE You should rearrange the data, using actual dates (if available) ... visible CHAPTER ■ CREATING A PIVOT TABLE Creating an Excel Table from the Worksheet Data • As a final step in preparing the Excel source data, you should format the worksheet data as an Excel Table, ... 13 Create a pivot table from the normalized list, with Name and Region in the Row Labels area, Month in the Column Labels area, and Amount in the data area CHAPTER ■ CREATING A PIVOT TABLE 1.8...

Ngày tải lên: 09/10/2013, 12:20

... installation and maintenance can be accomplished quickly and easily Additionally, easy access at the MST facilitates maintenance and troubleshooting by allowing technicians to simply unplug a connector ... instructions and materials for cleaning hardened connectors and adapters To clean the connector and adapter, the dust caps and plugs are removed to expose the inner optical components The adapter can then ... non-technical field installation of the drop cable Cleaning techniques for these hardened connectors have also been simplified, enabling improved reliability and maintenance Kits are available with easy...

Ngày tải lên: 27/10/2013, 00:15

... mySqlConnection.CreateCommand(); mySqlCommand.CommandText = selectString; SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter(); mySqlDataAdapter.SelectCommand = mySqlCommand; DataSet myDataSet = new DataSet(); ... Northwind database and returns a DataSet containing rows from the Customers table You pass a WHERE clause to the RetrieveCustomers() method in the whereClause parameter; this WHERE clause is then ... Northwind database Because the code uses classes in the System.Data.SqlClient namespace, you'll also need to add the following line near the top of your Customers.asmx.cs file: using System.Data.SqlClient;...

Ngày tải lên: 28/10/2013, 19:15

... for a password, enter class If “class” does not work, ask the instructor for assistance Router>enable At the privileged EXEC mode, enter the command erase startup-config Router#erase startup-config ... type of router as well as how many interfaces the router has There is no way to effectively list all of the combinations of configurations for each router class What is provided are the identifiers ... ISDN BRI interface The string in parenthesis is the legal abbreviation that can be used in IOS command to represent the interface 4-4 CCNA 2: Routers and Routing Basics v 3.0 - Lab 4.1.4 Copyright...

Ngày tải lên: 04/11/2013, 16:15

... username database on the router, the command would be: aaa authentication login default local To log in using PPP and specify the local username database, the command would be: aaa authentication ... example, RADIUS-style accounting is used to track all usages of EXEC commands and network services, such as PPP, SLIP and ARAP aaa accounting exe start-stop radius aaa accounting network start-stop ... These attributes are compared the information contained in a database for a given user The result is returned to AAA to determine the user’s actual capabilities and restrictions This database can...

Ngày tải lên: 05/11/2013, 12:15

... Logical Standby Database • Configure the database guard to control user access to tables • ALTER DATABASE GUARD command keywords: – ALL: prevents users from making changes to any data in the database ... the database – STANDBY: prevents users from making changes to any data maintained by Data Guard SQL Apply – NONE: normal security • Query GUARD_STATUS column in V$DATABASE • Database guard level ... Logical Standby Database Perform the following steps on the primary database before creating a logical standby database: Check for unsupported data types Be aware of unsupported DDL commands...

Ngày tải lên: 09/12/2013, 16:15

... Today has separate databinding tables for calendar, mail, and tasks After the page loads, the DataSource Controls collect the appropriate Outlook 2000 information and display it in the databinding ... dashboard A digital dashboard is a Web page or a series of Web pages, running inside Outlook 2000, that consolidate personal, team, corporate, and external information A digital dashboard can be as ... information, and take advantage of the analysis tools, collaboration capabilities, and Internet and messaging standards support in Microsoft Office 2000 Module 8: Creating a Digital Dashboard Introduction...

Ngày tải lên: 10/12/2013, 16:15

... 24 Activity 4.4: Creating a Future-State Usage Scenario Exercise 1: Creating a Future-State Use Case (30 minutes) ! Create a future-state use case Participate in small groups as assigned ... this space to create the future-state use cases Activity 4.4: Creating a Future-State Usage Scenario Exercise 2: Creating a Future-State Usage Scenario (30 minutes) ! Create a future-state usage ... and Bardell, Inc case study Review the current-state use cases and usage scenarios Create future-state use cases for the client billing process by using the current-state use case as a template...

Ngày tải lên: 10/12/2013, 16:16