characteristics of domain user accounts
- provide access to network resources
- provide access token for authentication
- created in active directory of domain controller
Saturday, July 11, 2009
domain user accounts
domain user accounts allow you to log on to the domain and access resources anywhere on the network. when you log on, you provide your logon information-your user name and password. microsoft windows 2000 server uses this logon information to authenticate your identity and build and access token that contains your user information and security settings. the access token identifies you to the computers in the domain on which you try to access resources. the access token is valid throughtout the logon session.
characteristics of domain user accounts
characteristics of domain user accounts
local user accounts
local user accounts allow users to log on only to the computer on which the local user account has been created and to access resources on only that computer. when you create a local user account, windows xp professional creates the account only in that computers security database, called the local security database. windows xp professional uses the local security database to authenticate the local user account, which allows the user to log on to that computer. windows xp professional does not replicate local user account information to any other computer.
characteristics of local user accounts
characteristics of local user accounts
- provide access to resources on the local computer
- created in local security database (LSD)
- created in computers which are in workgroups
Friday, July 10, 2009
overview of internet explorer 8
Microsoft Windows Internet Explorer 8 is the next version of the world’s most popular browser that has been built from the ground up to be the best browser for the way people really use the Web. Faster, easier and safer than ever before, Internet Explorer 8 optimizes developer and end-user experiences to provide a window to the Web of online services.
note - now here comes the genuine story again, you cant use this in a non genuine windows, in order to install IE 8 you must verify that you using genuine products.
Following are brief descriptions of the new Internet Explorer 8.
Smart Address Bar
The Smart Address Bar makes it easier for people to locate the sites they want to visit. It does this by efficiently matching what a consumer types into the Address Bar with titles in their History and Favorites, without duplicates.
Tab Groups
Tab Groups allow consumers to quickly discern which tabs have related content. When clicking on a link within one tab spawns another, the new tab is placed next to the originating tab, and both tabs are marked with a color.
Redesigned “New Tab” Page
The “New Tab” Page in Internet Explorer 8 has been redesigned to allow people to perform common tasks by clicking on links on the page.
Reopen Last Browsing Session
For those who accidentally close the browser or experience a crash, Internet Explorer 8 enables people to reopen their last browsing session from the most recently closed instance of Internet Explorer 8.
Enhanced Find On Page
Find On Page functionality has been enhanced to improve how consumers search for text on Web pages.
Result count
The enhanced Find On Page functionality shows how many places the search text appears on the page.
Result highlighting
The enhanced Find On Page functionality makes it so users can locate an item at a glance since it highlights all places on the page where the search text appears.
Simplified Internet Explorer Administration Kit
The Internet Explorer Administration Kit helps IT professionals easily configure deployment settings, and now has Favorites customization and the ability to import Accelerators.
Group Policy enhancements
Internet Explorer 8 allows IT administrators to control and configure browser features including Accelerators and Web Slices with more than 140 new Group Policy settings in Internet Explorer 8, bringing the total to nearly 1,500, to ease browser deployment, configuration and customization. There are multiple new Group Policy Objects in areas such as Connection limits, InPrivate, Compatibility View and SmartScreen actions.
Developer tools
Developer tools enable developers to quickly debug HTML, CSS and JScript in a visual environment. These tools have been built directly into Internet Explorer 8 with expanded functionality including a helpful menu option for choosing which application to use when viewing a Web page’s source. Developers can quickly identify and resolve issues because of the deep insight the tool provides into the DOM.
Accelerators
Accelerators give people easy access to the online services they care about most from any page they visit. Meanwhile, developers gain an easy way to extend the reach of their online services. Accelerators also allow users to browse faster by eliminating most of the clicks required to access desired content and services.
Web Slices
With Web Slices, people can see the information they want to see most often without going away from the page they are on, and developers can mark parts of Web pages as Web Slices and enable users to easily monitor the information they most frequently browse to, all while they move about the Web. Web Slices appear in the Favorites bar, where people can identify updated sites when in bold. From there, they can see a rich Web Slice visualization of their content with easy access back to the source Web page.
Instant Search Box
The enhanced Instant Search Box in Internet Explorer 8 is more helpful, making it easier for people to find content of interest and increasing the relevancy of search results. As users type a search term, they can see real-time search suggestions, including images and rich text, from their chosen search provider. There is a quick pick menu at the bottom of the Search box, enabling people to toggle back and forth between their favorite Web sites and search providers’ Search Suggestions with a simple mouse click. In addition, the enhanced Instant Search Box presents results from the user’s own Favorites and browsing History.
InPrivate
InPrivate helps to protect people’s data and privacy from being retained locally on the PC they are using. This protects against third parties who might be in a position to track a consumers’ online activities. Consumers have the ability to use either of the features (InPrivate Blocking or InPrivate Filtering) independently.
InPrivate Browsing
When activated, InPrivate Browsing helps ensure that History, temporary Internet files and cookies are not recorded on a PC after browsing. When in InPrivate Browsing, toolbars and extensions are automatically disabled, and browsing History is automatically deleted when the browser is closed.
InPrivate Filtering
InPrivate Filtering helps protect privacy by enabling the consumer to filter content coming from third parties that are in a position to track and aggregate their online behavior. Users are provided with notice, choice and control of which third parties to allow and which ones to filter.
Compatibility View
Internet Explorer 8 provides people with an easy way to fix display problems such as out-of-place menus, images and text with a Compatibility View button that displays those pages as they were designed to be viewed. Some Web sites that are designed for older browsers may not display correctly in Internet Explorer 8, which by default renders content in the most standards-compliant way possible.
Compatibility View list
Those using Internet Explorer 8 can choose to receive a list of major sites that are best viewed in Compatibility View. When navigating to a site on the list, Internet Explorer 8 will automatically display the site in Compatibility View without requiring the user to press the Compatibility View button.
Crash recovery
In Internet Explorer 8, if a tab does crash, it is automatically restored and reloaded, and any information the user may have already entered on the page (such as when writing an e-mail or filling out a form) is restored.
Delete Browsing History
Internet Explorer 8 enhances the Delete Browsing History feature by providing the ability to delete some cookies, History and other data while preserving cookies, History and other data for favorite sites.
SmartScreen Filter
Built upon the Microsoft Phishing Filter, the SmartScreen Filter helps protect customers against a broader set of phishing threats and helps protect from sites that attempt to download malicious software. The SmartScreen Filter is easy to use with enhanced user interface and warning messages to reduce users’ click-through to confirmed sites.
ClickJacking prevention
New in Internet Explorer 8 is a feature that allows Web site content owners to put a tag in a page header that will help prevent ClickJacking, a type of cross-site request forgery. ClickJacking encompasses multiple techniques that can be used to trick Web users into unwittingly clicking an obscured or hidden Web element, usually resulting in an unwanted transaction. Internet Explorer 8 will detect sites that insert the tag and give users a new error screen indicating that the content host has chosen not to allow their content to be framed, while giving users the option to open the content in a new window.
Cross-site scripting (XSS) filter
Internet Explorer 8 helps protect customers and systems from attacks that can lead to information disclosure, cookie stealing, account or identity theft, or other attempts to masquerade as the user without permission. XSS attacks have emerged as a leading exploit against Web servers and Web applications. Internet Explorer 8 has an XSS filter that is able to dynamically detect type-1 XSS (reflection) attacks.
Data Execution Prevention (DEP)
DEP, on by default in Internet Explorer 8 in Windows Vista Service Pack 1, is a security feature that can help prevent damage to computers from viruses and other security threats by preventing certain types of code from writing to executable memory space.
Per-site ActiveX
Per-site ActiveX reduces attack surface by providing an implicit SiteLock (a tool for restricting access to a specific domain) so that controls may only run from their point of installation by default. This enables users and administrators to manage where a given ActiveX Control is allowed to run.
Per-user ActiveX
Per-user ActiveX allows developers to write their ActiveX Controls so that when a user installs them, they are installed only for that user and not for all users on the system, providing a level of protection for other users against malicious or badly written controls.
note - now here comes the genuine story again, you cant use this in a non genuine windows, in order to install IE 8 you must verify that you using genuine products.
Following are brief descriptions of the new Internet Explorer 8.
Smart Address Bar
The Smart Address Bar makes it easier for people to locate the sites they want to visit. It does this by efficiently matching what a consumer types into the Address Bar with titles in their History and Favorites, without duplicates.
Tab Groups
Tab Groups allow consumers to quickly discern which tabs have related content. When clicking on a link within one tab spawns another, the new tab is placed next to the originating tab, and both tabs are marked with a color.
Redesigned “New Tab” Page
The “New Tab” Page in Internet Explorer 8 has been redesigned to allow people to perform common tasks by clicking on links on the page.
Reopen Last Browsing Session
For those who accidentally close the browser or experience a crash, Internet Explorer 8 enables people to reopen their last browsing session from the most recently closed instance of Internet Explorer 8.
Enhanced Find On Page
Find On Page functionality has been enhanced to improve how consumers search for text on Web pages.
Result count
The enhanced Find On Page functionality shows how many places the search text appears on the page.
Result highlighting
The enhanced Find On Page functionality makes it so users can locate an item at a glance since it highlights all places on the page where the search text appears.
Simplified Internet Explorer Administration Kit
The Internet Explorer Administration Kit helps IT professionals easily configure deployment settings, and now has Favorites customization and the ability to import Accelerators.
Group Policy enhancements
Internet Explorer 8 allows IT administrators to control and configure browser features including Accelerators and Web Slices with more than 140 new Group Policy settings in Internet Explorer 8, bringing the total to nearly 1,500, to ease browser deployment, configuration and customization. There are multiple new Group Policy Objects in areas such as Connection limits, InPrivate, Compatibility View and SmartScreen actions.
Developer tools
Developer tools enable developers to quickly debug HTML, CSS and JScript in a visual environment. These tools have been built directly into Internet Explorer 8 with expanded functionality including a helpful menu option for choosing which application to use when viewing a Web page’s source. Developers can quickly identify and resolve issues because of the deep insight the tool provides into the DOM.
Accelerators
Accelerators give people easy access to the online services they care about most from any page they visit. Meanwhile, developers gain an easy way to extend the reach of their online services. Accelerators also allow users to browse faster by eliminating most of the clicks required to access desired content and services.
Web Slices
With Web Slices, people can see the information they want to see most often without going away from the page they are on, and developers can mark parts of Web pages as Web Slices and enable users to easily monitor the information they most frequently browse to, all while they move about the Web. Web Slices appear in the Favorites bar, where people can identify updated sites when in bold. From there, they can see a rich Web Slice visualization of their content with easy access back to the source Web page.
Instant Search Box
The enhanced Instant Search Box in Internet Explorer 8 is more helpful, making it easier for people to find content of interest and increasing the relevancy of search results. As users type a search term, they can see real-time search suggestions, including images and rich text, from their chosen search provider. There is a quick pick menu at the bottom of the Search box, enabling people to toggle back and forth between their favorite Web sites and search providers’ Search Suggestions with a simple mouse click. In addition, the enhanced Instant Search Box presents results from the user’s own Favorites and browsing History.
InPrivate
InPrivate helps to protect people’s data and privacy from being retained locally on the PC they are using. This protects against third parties who might be in a position to track a consumers’ online activities. Consumers have the ability to use either of the features (InPrivate Blocking or InPrivate Filtering) independently.
InPrivate Browsing
When activated, InPrivate Browsing helps ensure that History, temporary Internet files and cookies are not recorded on a PC after browsing. When in InPrivate Browsing, toolbars and extensions are automatically disabled, and browsing History is automatically deleted when the browser is closed.
InPrivate Filtering
InPrivate Filtering helps protect privacy by enabling the consumer to filter content coming from third parties that are in a position to track and aggregate their online behavior. Users are provided with notice, choice and control of which third parties to allow and which ones to filter.
Compatibility View
Internet Explorer 8 provides people with an easy way to fix display problems such as out-of-place menus, images and text with a Compatibility View button that displays those pages as they were designed to be viewed. Some Web sites that are designed for older browsers may not display correctly in Internet Explorer 8, which by default renders content in the most standards-compliant way possible.
Compatibility View list
Those using Internet Explorer 8 can choose to receive a list of major sites that are best viewed in Compatibility View. When navigating to a site on the list, Internet Explorer 8 will automatically display the site in Compatibility View without requiring the user to press the Compatibility View button.
Crash recovery
In Internet Explorer 8, if a tab does crash, it is automatically restored and reloaded, and any information the user may have already entered on the page (such as when writing an e-mail or filling out a form) is restored.
Delete Browsing History
Internet Explorer 8 enhances the Delete Browsing History feature by providing the ability to delete some cookies, History and other data while preserving cookies, History and other data for favorite sites.
SmartScreen Filter
Built upon the Microsoft Phishing Filter, the SmartScreen Filter helps protect customers against a broader set of phishing threats and helps protect from sites that attempt to download malicious software. The SmartScreen Filter is easy to use with enhanced user interface and warning messages to reduce users’ click-through to confirmed sites.
ClickJacking prevention
New in Internet Explorer 8 is a feature that allows Web site content owners to put a tag in a page header that will help prevent ClickJacking, a type of cross-site request forgery. ClickJacking encompasses multiple techniques that can be used to trick Web users into unwittingly clicking an obscured or hidden Web element, usually resulting in an unwanted transaction. Internet Explorer 8 will detect sites that insert the tag and give users a new error screen indicating that the content host has chosen not to allow their content to be framed, while giving users the option to open the content in a new window.
Cross-site scripting (XSS) filter
Internet Explorer 8 helps protect customers and systems from attacks that can lead to information disclosure, cookie stealing, account or identity theft, or other attempts to masquerade as the user without permission. XSS attacks have emerged as a leading exploit against Web servers and Web applications. Internet Explorer 8 has an XSS filter that is able to dynamically detect type-1 XSS (reflection) attacks.
Data Execution Prevention (DEP)
DEP, on by default in Internet Explorer 8 in Windows Vista Service Pack 1, is a security feature that can help prevent damage to computers from viruses and other security threats by preventing certain types of code from writing to executable memory space.
Per-site ActiveX
Per-site ActiveX reduces attack surface by providing an implicit SiteLock (a tool for restricting access to a specific domain) so that controls may only run from their point of installation by default. This enables users and administrators to manage where a given ActiveX Control is allowed to run.
Per-user ActiveX
Per-user ActiveX allows developers to write their ActiveX Controls so that when a user installs them, they are installed only for that user and not for all users on the system, providing a level of protection for other users against malicious or badly written controls.
overview of opera web browser
Opera is a another web browser that providing more features, now you can find opera 10 beta, here are some of the features available in opera 10.
Opera Turbo for fast browsing on slow connections
Opera Turbo is a compression technology that provides significant improvements in browsing speeds over limited-bandwidth connections like a crowded Wi-Fi in a cafe or browsing through your mobile phone while commuting.
New enhanced tabs and sleek design
Opera has always been the pioneer for how to deal with tabs in your browser. In Opera 10, we introduce a resizable tab bar. Drag the handle underneath the tabs to reveal thumbnails of your open Web pages. And, because great features should come in beautiful packages: well-known designer Jon Hicks created a whole new look for Opera 10.
Speed Dial your way
Customize your Speed Dial to fit your own needs. Click the configure button and choose from 4 to 25 favorite Web sites for quick access every time you open a new tab. You can also add a custom background so that you feel right at home.
Web integration
If you use a Web mail service as your default mail client, you can tell Opera 10 to do the same. Clicking on e-mail addresses or "Send by Mail" in Opera will open the compose page from your Web mail service provider. The same is true with the Feed reader — you can now also add any RSS/atom feed into your favorite online feed reader from within Opera 10.
Resizable search field
Have a clearer view of what you are about to search by simply expanding the size of the search field — because many of life's questions require more than two words of space.
40% faster engine and cutting-edge Web standards support
the new Opera Presto 2.2 engine in Opera 10 to be much faster on resource-intensive pages such as Gmail and Facebook. In addition, with an Acid3 100/100 score, Web Fonts support, RGBA/HSLA color and SVG improvements, Opera 10 beta is ready for the next generation of Web applications. Learn more...
Inline spell-checker
Write freely in your Facebook wall, blog, or Web mail. Opera 10 beta underlines any misspelled words, so you can express yourself without reservation. By using the popular Hunspell dictionary format, you can be sure you’ll always have the most complete and updated list of all languages.
Auto-update
Opera 10 beta makes it easier than ever to stay up-to-date with the latest version. With auto-update you will be able to choose completely automatic updates or have the option of being notified when an update is ready to install. As always with Opera, it is your choice.
E-mail your way
Opera Mail can now send rich text messages including inline images, styled text, links, and/or custom HTML. You can also choose to have messages deleted from your POP server after a preset number of days, so you can keep your Web space under control.
Automated Crash Reporting
Opera is designed to restart and recover all your tabs if a crash occurs. But, now you can easily send us a crash report to help us continue to make Opera the most stable browser around.
Opera Turbo for fast browsing on slow connections
Opera Turbo is a compression technology that provides significant improvements in browsing speeds over limited-bandwidth connections like a crowded Wi-Fi in a cafe or browsing through your mobile phone while commuting.
New enhanced tabs and sleek design
Opera has always been the pioneer for how to deal with tabs in your browser. In Opera 10, we introduce a resizable tab bar. Drag the handle underneath the tabs to reveal thumbnails of your open Web pages. And, because great features should come in beautiful packages: well-known designer Jon Hicks created a whole new look for Opera 10.
Speed Dial your way
Customize your Speed Dial to fit your own needs. Click the configure button and choose from 4 to 25 favorite Web sites for quick access every time you open a new tab. You can also add a custom background so that you feel right at home.
Web integration
If you use a Web mail service as your default mail client, you can tell Opera 10 to do the same. Clicking on e-mail addresses or "Send by Mail" in Opera will open the compose page from your Web mail service provider. The same is true with the Feed reader — you can now also add any RSS/atom feed into your favorite online feed reader from within Opera 10.
Resizable search field
Have a clearer view of what you are about to search by simply expanding the size of the search field — because many of life's questions require more than two words of space.
40% faster engine and cutting-edge Web standards support
the new Opera Presto 2.2 engine in Opera 10 to be much faster on resource-intensive pages such as Gmail and Facebook. In addition, with an Acid3 100/100 score, Web Fonts support, RGBA/HSLA color and SVG improvements, Opera 10 beta is ready for the next generation of Web applications. Learn more...
Inline spell-checker
Write freely in your Facebook wall, blog, or Web mail. Opera 10 beta underlines any misspelled words, so you can express yourself without reservation. By using the popular Hunspell dictionary format, you can be sure you’ll always have the most complete and updated list of all languages.
Auto-update
Opera 10 beta makes it easier than ever to stay up-to-date with the latest version. With auto-update you will be able to choose completely automatic updates or have the option of being notified when an update is ready to install. As always with Opera, it is your choice.
E-mail your way
Opera Mail can now send rich text messages including inline images, styled text, links, and/or custom HTML. You can also choose to have messages deleted from your POP server after a preset number of days, so you can keep your Web space under control.
Automated Crash Reporting
Opera is designed to restart and recover all your tabs if a crash occurs. But, now you can easily send us a crash report to help us continue to make Opera the most stable browser around.
how to subscribe to a website
if you find some useful information in website or blogsite imagine you want to get all of that sites posts, you can subscribe to that site, most of website has feed link or subscription link ( similar to subscribe to this blog or post )
for example this blogsite has subscription link, when someone want to subscribe the user will redirect to this sites feedburner page, in there you can select your news readers ( eg - google users can subscribe via google reader, yahoo users can subscribe via my yahoo )
when contents of the blogsite gets new posts the readers will automatically recieve the new posts. therefore users can find what they want in a single location.
for example this blogsite has subscription link, when someone want to subscribe the user will redirect to this sites feedburner page, in there you can select your news readers ( eg - google users can subscribe via google reader, yahoo users can subscribe via my yahoo )
when contents of the blogsite gets new posts the readers will automatically recieve the new posts. therefore users can find what they want in a single location.
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