Read this whole guide offline with no ads, for a low price!
Click Here!
Use coupon code "certiguide" to save 20%!
(Expires 2004/12/31)

Need more practice? 300 additional Security+ questions!
Get It Here!

Custom Search

Table Of Contents  CertiGuide to Security+
 9  Glossary

Previous Topic/Section
Previous Page
Pages in Current Topic/Section
Next Page
Next Topic/Section


IDS (Intrusion Detection System)

IDS comes in two forms: host based and network based. They can be passive or active in nature. They are designed to detect suspicious activity on a system,289483,sid14_gci850706,00.html

IETF (Internet Engineering Task Force)

An open group creating standards to evolve the Internet

Illicit server

A program designed to gain unauthorized access and control by bypassing standard authentication procedures. NetBus is an example (Postscript file, Section 9.1.4)

Incremental Backup

A backup of all files changed since the last full or archival backup

IM (Instant Messaging)

A process in which people can communicate without the delay of email. File attachments and lack of encryption can be security issues

IRT (Incident Response Team)

A group of people who respond to a security breech according to policy


A network connecting other networks. AKA Internetwork


An internal network that utilizes the same protocols as the Internet

IP spoofing

Unauthorized access to a system created by modifying the IP information in the source portion of an IP datagram

IPSec (IP Security Protocol)

A set of standards (protocols) to support secure communication in the IP layer (Network layer)

Issuing Authority (IA)

The part of a Certificate Authority that issues, suspends or revokes a certificate,289893,sid9_gci211947,00.html

Previous Topic/Section
Previous Page
Pages in Current Topic/Section
Next Page
Next Topic/Section

If you find useful, please consider making a small Paypal donation to help the site, using one of the buttons below. You can also donate a custom amount using the far right button (not less than $1 please, or PayPal gets most/all of your money!) In lieu of a larger donation, you may wish to consider buying an inexpensive PDF equivalent of the CertiGuide to Security+ from (Use coupon code "certiguide" by December 31, 2004 to save 20%!) Thanks for your support!
Donate $2
Donate $5
Donate $10
Donate $20
Donate $30
Donate: $

Home - Table Of Contents - Contact Us

CertiGuide for Security+ ( on
Version 1.0 - Version Date: November 15, 2004

Adapted with permission from a work created by Tcat Houser et al. Version Copyright 2004 Charles M. Kozierok. All Rights Reserved.
Not responsible for any loss resulting from the use of this site.