• Apache - The Apache Web Server is software for listening to HTTP requests and sending files (i.e. HTML, images) over the network; it is the most commonly used web server software. A web browser communicates with a web server.

B

• BIND - Stands for Berkeley Internet Name Domain, a commonly-used domain name system server used to share hostname to IP mapping. Maps the appropriate domain name to its numerical address.

C

• Cron - used to run scheduled jobs such as system tasks, nightly security checks, website analysis reports, and backups.

D

• Daemon - a program that does a specific task. Listens for certain information and then acts accordingly.
• DHCP - Dynamic Host Configuration Protocol is used by client computers to retrieve and assign IP addresses, networking information and other configurations.
• DNS - Domain Name System is the protocols and programs for converting recognizable hostnames to the correct numerical IP address.

E

F

• FTP - File Transfer Protocol is used for uploading and downloading files to and from remote computers, such as your web page space.
• Firewall - a barrier between the outside world and your internal network. A firewall can be software or hardware built into various network equipment. It is used to filter network traffic and deny unauthorized network requests

G

H

• Hostname - name of a specific computer. You can have several assigned for a single domain.

I

• IMAP - the protocol for interactive remote retrieval of mail and storage of mail folders. Can be used by customers who need to keep their mail on a remote server.

J

• Java - Java is a programming language and virtual machine, not to be confused with Javasript. The code is compiled, usually cross-platform and can be run on any operating system using a Java virtual machine. (

K

• Kernel - The kernel is the core, nucleus or center of an operating system. Basically, a kernel schedules and supervises how the computer's resources are used.

L

M

N

O

P

• Perl - a script based programming language. An interpreter converts and runs the perl code located on the web server.
• PHP - an interpreted language, most commonly used with web site development and automation. The PHP code and HTML layout code is contained within the web page code, and the web server sends the results to the browser.
• POP3 - protocol for allowing email users to retrieve their email.
• Python - another interpreted scripting language, similar to Perl.

Q

• Quota - used to limit users disk usage.

R

• RAID - used to improve disk efficiency speed and performance or to increase redundancy by combining multiple disks to create one disk. If one disk fails, the data is still available. There are hardware and software-based solutions.

S

• Sendmail - used for sending mail and located on the web server.
• SMTP - Simple Mail Transfer Protocol is the standard method for sending and routing email over the internet.

T

• TCP - Transmission Control Protocol is the protocol for keeping track of data packets as they transfer across the internet.
• Telnet - protocol for logging on to remote computers.

U

• Unix - Unix is trademarked term used to officially designate or recognize certain types of operating systems.

V

W

X

Y

Z

• Zip - compression scheme for shrinking a file size common on Windows systems.