In Feburary 2016 23,
Internet chat has evolved quite a bit from its original inception, but the basic premise of chatting remains the same. Users at different computers are able to connect to each other, using either a web browser or a dedicated program to serve as a go-between for the chat participants' computers. Chatting often allows multiple users to connect at the same time, though some chat programs may limit the total number of users who can be connected at once. There are two main forms of chatting that you will find; browser-based chat rooms that don't require dedicated software to run, and those chat clients and instant messengers which are dedicated programs on their own.
Browser-Based Chat Rooms
Browser-based chat rooms come in a number of different forms. There are simple HTML chats that refresh themselves automatically in order to display messages that were posted since the previous refresh. Then you have Java or Flash-based chat rooms that update the conversation in real-time. Regardless of the type of update system that a chat room uses, the way that it functions remains basically the same. The chat room is hosted on a web server, and users connect to the server in a manner similar viewing a web page. The users don't connect directly to each other in most cases, but instead simply receive the updates from the server that show what everyone else has typed or posted in the chat. This allows users to interact with each other without opening up their computer to a direct connection with an unknown person. If an error occurs with the server that the chat room is hosted on, the room will be unavailable until the error is resolved.
Instant Messaging and Chat Clients
Instant messaging programs and dedicated chat clients work in a similar manner to chat rooms, though there is no web-based interface involved. Though these programs and chat clients may be focused on small conversations and occasional file transfers, there is still a server which acts as a go-between for the participants. Each message which is sent travels first to the server that the chat client or program is connected to, and from there it is sent to the appropriate recipient's computer. The server acts more as a routing agent than a host, with much of the functionality of the chat coming from the software installed on the users' computers. Should an error occur with the central server, users may be disconnected from the chat network or some messages may not be received.
In Feburary 2016 23,
Showing posts with label Clients. Show all posts
Showing posts with label Clients. Show all posts
Tuesday, 23 February 2016
Friday, 19 February 2016
How Does an FTP Work?In Feburary 2016 19,
In Feburary 2016 19,
File Transfer Protocol (FTP) is the protocol used to transfer files between devices on the Internet. Particularly useful for larger files, FTP is a more robust and more capable protocol than the Hypertext Transfer Protocol (HTTP) used to deliver web pages and smaller files from a server to a client by way of a web browser. Since no special browser is required, FTP is also more universal. All major operating systems, including Mac OS, Windows and Linux allow FTP file transfers directly from the command line. Graphical FTP programs do exist though, and help organize and facilitate bulk file transfers that would otherwise require considerable manual input. By using FTP to transfer files between clients and servers, or between network servers, FTP helps webmasters publish the files that drive the Internet.
FTP Transfers Work in Sessions
In order to transfer a file from a client to a server, or to download a file from a server to a computer, a user must authenticate, or identify himself, when logging on to an FTP server. By authenticating, the user creates a session on the server during which he can transfer or modify as many files as necessary. The authentication process also allows remote hosts to set proper file permissions, keeping users from viewing files or directories to which they do not have access, and allowing an individual user to set read, write, and execute permissions on his own files or subdirectories. When the user session is complete, the user simply disconnects from the server and the session is closed. Some FTP servers also allow 'anonymous' connections, where members of the public can connect anonymously to the FTP server and initiate file transfers; these settings are generally used when publicly available information--like program files released for free--needs to be available for download by knowledgeable users.
FTP Uses Multiple Ports
The File Transfer Protocol is unique among protocols used on the Internet in that it actually works across two ports: one port for issuing commands and conveying other administrative information between the client and server, and a separate port for actually transferring files. Users can also transfer files in either an 'active' or a 'passive' mode, allowing flexibility for file transfers from behind a network firewall or other situation that may present difficulty in transferring files.
In Feburary 2016 19,
File Transfer Protocol (FTP) is the protocol used to transfer files between devices on the Internet. Particularly useful for larger files, FTP is a more robust and more capable protocol than the Hypertext Transfer Protocol (HTTP) used to deliver web pages and smaller files from a server to a client by way of a web browser. Since no special browser is required, FTP is also more universal. All major operating systems, including Mac OS, Windows and Linux allow FTP file transfers directly from the command line. Graphical FTP programs do exist though, and help organize and facilitate bulk file transfers that would otherwise require considerable manual input. By using FTP to transfer files between clients and servers, or between network servers, FTP helps webmasters publish the files that drive the Internet.
FTP Transfers Work in Sessions
In order to transfer a file from a client to a server, or to download a file from a server to a computer, a user must authenticate, or identify himself, when logging on to an FTP server. By authenticating, the user creates a session on the server during which he can transfer or modify as many files as necessary. The authentication process also allows remote hosts to set proper file permissions, keeping users from viewing files or directories to which they do not have access, and allowing an individual user to set read, write, and execute permissions on his own files or subdirectories. When the user session is complete, the user simply disconnects from the server and the session is closed. Some FTP servers also allow 'anonymous' connections, where members of the public can connect anonymously to the FTP server and initiate file transfers; these settings are generally used when publicly available information--like program files released for free--needs to be available for download by knowledgeable users.
FTP Uses Multiple Ports
The File Transfer Protocol is unique among protocols used on the Internet in that it actually works across two ports: one port for issuing commands and conveying other administrative information between the client and server, and a separate port for actually transferring files. Users can also transfer files in either an 'active' or a 'passive' mode, allowing flexibility for file transfers from behind a network firewall or other situation that may present difficulty in transferring files.
In Feburary 2016 19,
Wednesday, 17 February 2016
How to Increase Steam Download SpeedIn Feburary 2016 17,
In Feburary 2016 17,
Start the Steam software to initiate any waiting downloads.
Close all programs that are also running and might be using your computer's Internet connection, including Web browsers, email clients, video players and iTunes. Peer-to-peer programs like uTorrent or Limewire are especially hard on your Internet connection.
Repeat Step 2 for all computers connected to the same network. If possible, shut down computers that are not being used.
Avoid media-heavy sites like YouTube or Pandora if you must use the Web while Steam is downloading. Use only one window or tab at a time.
Changing Steam Settings
Switch to your Steam window. Click 'Settings,' then click the 'Downloads' tab.
Choose the region or city closest to your physical location. If this is already set to your location, try another; different Steam server that may be less crowded with download requests.
Click 'Internet Connection Speed.' Click the fastest speed available (even if your connection is not actually this fast), then click 'OK.'
In Feburary 2016 17,
Start the Steam software to initiate any waiting downloads.
Close all programs that are also running and might be using your computer's Internet connection, including Web browsers, email clients, video players and iTunes. Peer-to-peer programs like uTorrent or Limewire are especially hard on your Internet connection.
Repeat Step 2 for all computers connected to the same network. If possible, shut down computers that are not being used.
Avoid media-heavy sites like YouTube or Pandora if you must use the Web while Steam is downloading. Use only one window or tab at a time.
Changing Steam Settings
Switch to your Steam window. Click 'Settings,' then click the 'Downloads' tab.
Choose the region or city closest to your physical location. If this is already set to your location, try another; different Steam server that may be less crowded with download requests.
Click 'Internet Connection Speed.' Click the fastest speed available (even if your connection is not actually this fast), then click 'OK.'
In Feburary 2016 17,
Thursday, 11 February 2016
FTP Server Vs. Web ServerIn Feburary 2016 11,
In Feburary 2016 11,
An FTP server uses the File Transfer Protocol (FTP) and a web server uses the Hypertext Transfer Protocol (HTTP). FTP allows two computers to copy files to each other. HTTP provides methods to format and display text, pictures, and controls such as text boxes and buttons. HTTP describes what the user sees and how the user inputs information, while FTP does not.
Clients
Web browsers receive HTTP data from web servers and display that data in the way the web server dictates. Web browsers can also connect to FTP servers, but there are also many FTP client programs that can be used. When connecting to an FTP server, the browser or client determines how things are displayed instead of the server.
Setup Difficulty
Because a web server dictates what the user sees, the website has to be built in detail by a web designer. If files are to be shared using a web server, the web designer has to create links to the files and create an interface the user can use to upload files. For an FTP server, the files only need to be placed in a specific location and the user's FTP client will automatically create the interface necessary.
In Feburary 2016 11,
An FTP server uses the File Transfer Protocol (FTP) and a web server uses the Hypertext Transfer Protocol (HTTP). FTP allows two computers to copy files to each other. HTTP provides methods to format and display text, pictures, and controls such as text boxes and buttons. HTTP describes what the user sees and how the user inputs information, while FTP does not.
Clients
Web browsers receive HTTP data from web servers and display that data in the way the web server dictates. Web browsers can also connect to FTP servers, but there are also many FTP client programs that can be used. When connecting to an FTP server, the browser or client determines how things are displayed instead of the server.
Setup Difficulty
Because a web server dictates what the user sees, the website has to be built in detail by a web designer. If files are to be shared using a web server, the web designer has to create links to the files and create an interface the user can use to upload files. For an FTP server, the files only need to be placed in a specific location and the user's FTP client will automatically create the interface necessary.
In Feburary 2016 11,
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