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Server
A computer, or a software package, that provides a specific kind of service to client software running on other computers. The term can refer to a particular piece of software, such as a WWW server, or to the machine on which the software is running, e.g.Our mail server is down today, that's why e-mail isn't getting out. A single server machine could have several different server software packages running on it, thus providing many different servers to clients on the network.
Session
All the data exchange between two parties, starting when the connection is established and ending when connection terminates.
Setup Fee
A one-time fee paid by a hosting client to at the beginning of a new hosting contract.
Shared Hosting
Hosting option whereby several client websites are housed on and share the resources of a web server.
Shared IP
An IP address shared by multiple websites.
Shockwave
produced by Macromedia, allows you to view new forms of entertainment on the Web, such as games, music, rich-media chat, interactive product demos, and e-merchandising applications
Shopping Cart
Software used to make a site's product catalogue available for online ordering, whereby visitors may select, view, add/delete, and purchase merchandise.
SHTTP
Secure HTTP. A version of HTTP protocol that uses encryption to assure that the traffic between the server and the browser cannot be eveasdropped on. Should be considered mandatory for all e-commerce applications.
Site Monitoring
A service that regularly checks a site and alerts the administrator in the event of a problem.
SMTP
(Simple Mail Transport Protocol) - The main protocol used to send electronic mail on the Internet. SMTP consists of a set of rules for how a program sending mail and a program receiving mail should interact. Almost all Internet email is sent and received by clients and servers using SMTP, thus if one wanted to set up an email server on the Internet one would look for email server software that supports SMTP.
SNMP
(Simple Network Management Protocol) - A set of standards for communication with devices connected to a TCP/IP network. Examples of these devices include routers, hubs, and switches. A device is said to be 'SNMP compatible' if it can be monitored and/or controlled using SNMP messages. SNMP messages are known as 'PDU's' - Protocol Data Units.
Spam
An inappropriate attempt to use a mailing list, or USENET or other networked communications facility as if it was a broadcast medium (which it is not) by sending the same message to a large number of people who didn't ask for it. The term probably comes from a famous Monty Python skit which featured the word spam repeated over and over. The term may also have come from someone's low opinion of the food product with the same name, which is generally perceived as a generic content-free waste of resources. (Spam is a registered trademark of Hormel Corporation, for its processed meat product.) E.g. Mary spammed 50 USENET groups by posting the same message to each.
Spider
an automated software that retrieves webpages and follows the hyperlinks contained in them. Used to generate indexes used by search engines.
SQL
(Structured Query Language) - A specialized programming language for sending queries to databases. Most industrial-strength and many smaller database applications can be addressed using SQL. Each specific application will have its own version of SQL implementing features unique to that application, but all SQL-capable databases support a common subset of SQL.
SSH
(Secure Shell) - Developed by SSH Communications Security, it is a standard for encrypted terminal Internet connections. SSH programs provide strong authentication and encrypted communications, replacing less secure access methods like telnet.
SSI
(Server-Side Includes) - Instructs the server to include some dynamic information in a Web page before it is sent to a client. This dynamic information could be current date, an opinion poll, etc. Many hosts require that SSI pages have .shtml extension to reduce the load on servers by not having to parse non-SSI pages.
SSL
(Secure Sockets Layer) - Protocol developed by Netscape to provide encryption for commercial transactions data that should be protected while traveling over the Internet, like credit card numbers. SSL uses https protocol. Before using SSL in commerce, you'll also need to get is a certificate from a Certificate Authority.
Subdomain
Subdomain is a way to divide your site into sections with short and easy to remember names. For example, a section of this site for new users could be at newbies.webhostingratings.com. Other use of subdomains might be to let somebody else use your account (but this may not be allowed by your host's terms of use). Large websites might make their subdomains point to another server to reduce load on the main www site.
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