APACHE

Apache is an open source Web web server that is distributed free. Apache runs on Unix-based operating systems (including Linux and Solaris) and Windows 95/98/NT. Apache was originally based on the NCSA web server, but is now an independent product, supported by the nonprofit Apache Software Foundation.

BROWSER

A browser is a software application that lets you access information on the Internet. Browsers can read HTML and send HTTP or FTP requests for services on the Internet. Browsers are usually associated with the World Wide Web portion of the Internet.

BSD/OS

BSD/OS is an open source operating system from Berkeley Software Design, Inc. BSD, based on the Unix operating system, was developed for primary use on web servers and is one of the most secure operating systems available. BSD is used by many Internet service providers to create some of today's most popular Internet sites.

BSDI

BSDI stands for Berkeley Software Design, Inc., a privately held company that supplies BSD/OS and networking software.

CGI

CGI, or the common gateway interface, provides a standardized method for Web web servers to send a user request to an application and to receive information back for the user. For example, when you click on a URL link, the Web web server sends the requested page to you. CGI is part of the HTTP protocol. CGI works in many different languages, and across several different platforms.

CLIENT

A client is a company or individual requesting services from an Internet presence provider. A client is a customer of a Web web hosting company, or a user of Internet services. In hardware terminology, a client is a computer system or a software package that requests services or information from another application that resides across the network. Think of the client as your PC or workstation, through which you access programs and data across a network or the Internet, usually on a web server. In very simple terms, a client is a user.

COMSAT SERVICE RECORD

The comsat web server is an older method of handling asynchronous mail notification. Comsat has been replaced by a mail variable in the operating system shell.

DAEMON

A daemon is a continually running program in Unix that handles service requests as they are received by a computer. The daemon sends service requests to other programs as needed. For example, every Web web server has an HTTP daemon that receives user requests for services and information. Another example is the sendmail daemon that handles e-mail messages.

Domain Name Server

Domain Name Server, short for Domain Name web server, is a distributed database that maps names and IP addresses for computers using the Internet. Domain Name Server is a standardized system that identifies domain name web servers.

DOMAIN

A domain is a virtual address on the Internet for any organization or entity. Technically, a domain is a group of networked computers (web servers) that represent an organization and provide network services. However, several domains could reside on one web server, in dedicated space provided by a Web hosting service. To the Internet user, a domain appears as space on one web server, regardless of the implementation. Domains are identified by their familiar Internet URL (uniform resource locator) addresses. For example, www.sw-soft.com is the name of the domain where SWsoft information resides on its web servers. Syntactically, a domain name is a string of names or words separated by periods. For example, a domain name such as: hello.house.neighborhood.com includes the names of:

Some top-level domain names:

FREEBSD

FreeBSD is a ported version of BSD/OS Unix for Intel-based personal computers. FreeBSD is an open source operating system.

FTP

FTP, or File Transfer Protocol, is a method used to transfer files to (upload) and from (download) a remote web server. You can use the FTP command to:

GATEWAY

A gateway is a combination of hardware and software allowing dissimilar systems to communicate by filtering data through standardized protocols. Think of a gateway as a translator that allows your PC to talk with other computers on the network.

GNU GENERAL PUBLIC LICENSE

The GNU General Public License, from the Free Software Foundation, Inc., is a license that guarantees complete freedom to users for sharing and changing freeware software.

HOST

In a network, a host is usually a computer that stores software applications and data that may be accessed or retrieved by other users. But a host can be any addressable device on the network, not just a computer. The host provides services to other computers or users. An Internet Service Provider may also be referred to as a Web web hosting company.

HTML

HTML, or HyperText Markup Language, is a standardized language for presenting information, graphics, and multimedia on the World Wide Web. HTML consists of hundreds of codes, tags, and symbols that define the type of information and how it should be displayed in a browser. HTML is universally understood on a wide variety of platforms.

HTTP

HTTP, or HyperText Transfer Protocol, is a standard for sharing World Wide Web files. HTTP lets you communicate across the Internet by carrying messages from your browser to a web server.

IMAP

IMAP, or Internet Message Access Protocol, is a method for receiving e-mail messages from other Internet users on your local web server. IMAP lets you see message headers before choosing and viewing the entire text of mail messages. You can selectively retrieve mail messages with IMAP. Compare IMAP to the POP and SMTP mail protocols.

INCLUDE DIRECTIVE

Directive contained by Apache which allows the inclusion of customizations to the Apache configuration file, utilizing files external to the configuration file.

INETD

Inetd, or the Internet Services Daemon, is a program that runs when your web server is booted and reads a configuration file (inetd conf) to identify Internet services that it monitors. Inetd replaces the need for several different daemons running at the same time, reducing the system load.

INTERNET SUPER web server

Internet Super web server is a system available from Berkeley Software Design, Inc. which includes the BSD/ OS operating system.

IP ADDRESS

An IP address (Internet Protocol address) is an internal number that identifies a host on the Internet or a network. IP numbers are invisible to end users, replaced in your user interface by the more familiar domain names and URLs.

IP POOL

IP address pool is the range of available IP addresses.

LINUX

Linux is a free operating system originally created by Linus Torvalds of Finland. Linux is based on the Unix operating system and includes features such as true multitasking, memory management, virtual memory, demand loading, networking, and shared libraries. Linux runs in protected mode and supports both 32-bit and 64-bit multitasking. Developed under the GNU General Public License, Linux is available free to everyone.

MAIL AUTORESPONDER

Mail autoresponders are automatic replies to email sent to a particular mail name. Autoresponders can include both a text message and attached files. This mail function is often used on mail accounts for individuals who are away for a certain period of time, or are unable to check their mail for any number of reasons.

MAIL GROUP

Mail groups are used for sending e-mail to a group of people through one address rather than to each individual address. Mail groups save you time and effort in reaching several people at once; you only have to create one e-mail message to the group, rather than several identical messages to everyone.

MAILMAN

Mailman is software to help manage email discussion lists, much like Majordomo and SmartList. Unlike most similar products, Mailman gives each mailing list a web page, and allows users to subscribe, unsubscribe, etc. over the web. Even the list manager can administer his or her list entirely from the web. Mailman also integrates most things people want to do with mailing lists, including archiving, mail-to-news gateways, integrated bounce handling, spam prevention, email-based admin commands, direct SMTP delivery (with fast bulk mailing), support for virtual domains, and more. Mailman runs on most Un*x-like systems, is compatible with most web web servers and browsers, and most SMTP web servers.

MAIL REDIRECT

Mail redirects are used to forward or redirect email from one POP3 mailbox to another email address. By creating an email redirect or alias, messages are sent to a different email box without the sender needing to know the new address. Email can be redirected to an address outside the domain.

MOD_PERL

Perl is an interpreted high-level programming language. Perl is very popular among System Administrators who use it for a vast number of automation tasks. Many CGI programs are written in Perl.

MOD_PYTHON

Mod_python is an Apache module that embeds the Python interpreter contained by the web server. With mod_python you can write web-based applications in Python that will run many times faster than traditional CGI and will have access to advanced features such as ability to retain database connections and other data between hits and access to Apache internals.

MOD_THROTTLE

This Apache module is intended to reduce the load on your web server and bandwidth generated by popular virtual hosts, web directories, locations, or users according to supported polices that decide when to delay or refuse requests. Also mod_throttle can track and throttle incoming connections by IP address or by authenticated remote user.

MySQL

SQL is a Structured Query Language that was created as a standardized method of defining, manipulating, and searching data in a database. it's currently the most commonly used database language. My SQL is a fast, easy-to-use, multi-user SQL database web server in a standard client/web server environment. MySQL handles graphics as well as text. MySQL is frequently implemented on Unix and Linux platforms and is available under a GNU General Public License. For more information, visit http://www.mysql.com.

NETWORK

A network is a system of interconnected computers and peripheral devices (such as printers).

PACKET

Data that is transported across the Internet is divided into small, manageable units called packets. Data packets can be sent more quickly and efficiently across a network than the full stream of data in a message or file.

PHP

PHP (originally meaning Personal Home Page) is a web server-based HTML embedded scripting language that runs on multiple platforms, primarily on Linux web servers. PHP accesses and manipulates data in a MySQL database, and helps you create dynamic Web pages. You write HTML and embed code in the HTML that performs a specific function. The embedded code is the PHP portion of the script, identified in the HTML by special start and stop tags. A PHP file has an extension of .php or .php3 or phtml. All PHP code is executed on a web server, unlike a language such as JavaScript that is executed on the client system. For more information, visit http://www.php3.org.

PHPMYADMIN

PhpMyAdmin is a web-based administration tool that allows to manage a whole MySQL web server as well as a single database.

PHPPGADMIN

PhpPgAdmin is a web-based administration tool for PostgreSQL.

POP3

POP3, or Post Office Protocol Version 3, is a method used to receive electronic mail across the Internet, accommodating different mail software packages and systems. POP3 receives and holds all your e-mail on a web server. You can then download all your messages when you connect to the mail web server; you cannot selectively retrieve messages. Compare POP to the IMAP mail protocol.

POPPER

Popper is an implementation of the Post Office Protocol web server, running under Unix. Popper manages e-mail transmissions for Macintosh and MS-DOS computers.

POSTGRESQL

PostgreSQL is an open source database system, that began as an enhancement to the POSTGRES research prototype DBMS. Where POSTGRES used the PostQuel query language, PostgreSQL uses a subset of SQL.

PROTECTED web directory

A web directory is an organized collection of files and subweb directory folders on a computer. A protected web directory is one that cannot be accessed by all public users; you must have access privileges to read information in a protected web directory.

QMAIL

Qmail is a secure and highly reliable e-mail message handling system. It replaces the sendmail daemon on Unix and Linux systems. Qmail is fast and uses little memory. Users can create their own mail lists, and system administration is minimal. Qmail uses the Simple Mail Transfer Protocol (SMTP) for message exchange with other systems.

REBOOT

Rebooting simply means restarting a computer. You should not reboot a web server that has users accessing it until you have informed the users that the web server must be shut down temporarily. Sometimes, an emergency necessitates rebooting a web server immediately, but it's not a recommended practice.

RED HAT

Red Hat, Inc. is a commercial company that markets open source operating systems and services. Red Hat Linux OS is their most popular product.

SECURE HTTP

Secure HTTP (S-HTTP or HTTPS) is an encryption method uses to protect documents on the World Wide Web. An alternative to S-HTTP is an SSL certificate (or Secure Socket Layer) that secures an entire session, not just a document or a file. S-HTTP supports several different message encryption formats, and works with any communication between clients and web servers.

SECURITY

There are several different ways to control access to a computer or network, to protect proprietary data, and to maintain privacy. Security measures can be defined at several different levels (at the web server level, on a web directory, for an individual file, etc.) for optimum protection.

SENDMAIL

Sendmail is a Unix daemon (e.g., a program that stays active in the background until it's needed) that handles the transmittal of all e-mail messages on a web server.

web server

A web server is a computer system (a combination of hardware and software) that runs programs, stores files, directs traffic, and controls communications on a network or the Internet. Clients (also called users or workstations) access a web server for specific information and services.

SHARED IP

An IP address that can be used for hosting by several clients.

SKELETON web directory

In Plesk Web Hosting , this term refers to a set of web directories and files that get copied into a newly created virtual host web directory structure at the time the virtual host is created. It may be used to have a set of CGI scripts included with every account created in Plesk Web Hosting . it's very useful if you are looking to have a more informative, customized welcoming index.html page, and it's also helpful if you have anything else that needs to be included by default contained by the web directories of the virtual host.

SLACKWARE

Slackware Linux is a complete 32-bit multitasking 'UNIX-like' system. Slackware complies with the published Linux standards, such as the Linux File System Standard.

SMTP

SMTP, or Simple Mail Transfer Protocol, is a standard for transmitting mail messages across different computers on a TCP/IP network. SMTP can only be used when both the mail sender and receiver are ready. If the destination PC is not ready, a 'post office' must temporarily store the mail. In that case, a post office protocol such as IMAP or POP is used to retrieve the mail.

SOLARIS

Solaris is a Unix-based operating system available from Sun Microsystems, Inc.

SSI

SSI stands for 'web server-side include', a type of HTML comment that directs the webweb server to dynamically generate data for the Web page whenever information is requested. SSIs can also be used to execute programs and insert the results; therefore they represent a powerful tool for web developers.

SSL

SSL stands for Secure Socket Layer, and is a set of rules used for exchanging information between two computer devices using a public encryption system. SSL establishes secure communications between web servers and clients. SSL provides a safe and authenticated method of handling e-commerce transactions. Only authorized users can access and read an SSL-encrypted data stream. An alternative to SSL is Secure HTTP (S-HTTP), used to encrypt World Wide Web documents (rather than securing an entire session, as does SSL).

SSL CERTIFICATE

An SSL certificate is an electronic key that encrypts transmissions between two computers on a public network, providing privacy and security to the session. Think of an SSL certificate as an electronic ID card for an individual or a computer service. An SSL certificate confirms that a message that you receive actually did come from the person identified. The certificate key is issued by a third party. SSL certificates are used for secure e-commerce communications, protecting information such as credit card numbers and personal data. You can generate an SSL certificate with a utility such as SSLeay. Then, submit it to a certificate authority such as GeoTrust, Inc (www.geotrust.com).

SSLEAY

SSLeay implements the Netscape's Secure Socket Layer, the encryption protocol for the Netscape Secure web server and the Netscape Navigator browser. it's a free software package which is recognized as one of the leading standards in Internet security. SSLeay uses asymmetric cryptography, based on a Public Key Infrastructure model of an SSL certificate and private key pair.

T1

T1 is a network communications line or cable that transmits data at a very high rate of speed.

TARBALL

Tar is a Unix command (meaning 'Tape Archive' and originally referring to a backup that could be retrieved from a tape drive) that creates one archive file from several different files. Tar files are not compressed, but they are collected in one large file for convenient downloading or transferring. 'Tarball' is a slang term for the files that are 'stuck' together in a 'ball of tar' by the tar command.

TCP

TCP stands for Transmission Control Protocol, and is the primary data transport protocol on the Internet. TCP transmissions are fast, reliable, and full-duplexed.

TCP/IP

Transmission Control Protocol/Internet Protocol, commonly known as TCP/IP, is a data transmission protocol that was developed by ARPA, the Advanced Research Projects Agency. ARPA is the founding organization of the Internet.

TELNET

Telnet is a method of accessing another remote computer. You can only access the other computer if you have permission to do so. Telnet differs from other protocols that simply request information from a host computer, because it actually logs you on to the remote computer as a user.

TOMCAT

Tomcat is the servlet container that is used in the official Reference Implementation for the Java Servlet and Javaweb server Pages technologies. The Java Servlet and Javaweb server Pages specifications are developed by Sun under the Java Community Process. Tomcat is developed in an open and participatory environment and released under the Apache Software License.

TURBOLINUX

TurboLinux is a Linux-based Operating System. TurboLinux makes a suite of high-performance Linux products for the workstation and web server markets.

UNIX

Unix is an operating system that was originally developed by Ken Thompson and Dennis Ritchie at Bell Labs in 1969. It was the Primary operating system written in the C programming language, and offered true interactive time-sharing. Since then, Unix has evolved into a freeware product; many versions of Unix are offered by several companies and organizations. Unix is considered the Primary open standard operating system. Linux is a derivative of Unix, and is also available as freeware.

URL

A URL is a Uniform Resource Locator used to identify an organization or domain on the Internet. URLs are standardized names that are typically found on the World Wide Web portion of the Internet. URL addresses identify domains on the network. Read about Domains for more detail.

USER

Simply put, a user is a client. In hardware terminology, a client is the PC that you use to access information from other computers (usually web servers) on the Internet or network.

WEBMAIL

WebMail is a Web based interface to Unix system mailboxes. It allows a user to access and administer his IMAP/POP3 mailbox via the world wide web.

WEB USER

A web user is a user account contained by Apache that is used to define locations for personalized web pages with individual FTP access.

WORKSTATION

A workstation is a user or client that accesses information from other computers (usually web servers) on a network.