The boundary of a system or network, which defines the inside and outside. It is typically determined by firewalls and addresses. See DMZ.
 | Reproduced with permission from Computer Desktop Encyclopedia. Copyright (c) 1981-2009 The Computer Language Company Inc. All rights reserved. |
Additional Resources
- Managing a growing threat: An Executive's Guide to Web Application Security
- Traditionally, companies have relied on perimeter defenses to keep their networks and data secure. Unfortunately, network firewalls and network vulnerability scanners can't defend against application-level attacks. Cyber-criminals are leveraging relatively simple application exploits to gain access to sensitive information for fun and profit. It's more important than ever to...
- White papers 2009-11-19
- Microsoft confirms 'detailed' Windows 7 exploit
- Ummm interesting....so just block 139 and 445...445? great that port aggain.Is SMB blocked to/from internet by th firewall by default?RE: Microsoft confirms 'detailed' Windows 7 exploitPorts 139 and 445 are blocked by default for Internet access by Windows firewall in Windows 7 and any commerical hardware firewall. They are enabled...
- Discussion threads 2009-11-16
- JEP(S) Greylist 2.3.6.6 (Windows)
- JEPS is the first line of spam protection for your Exchange 2000/2003/2007/2010 and IIS SMTP servers. With JEPS you stop up to 98% of the spam before it even hits your mail system. By offloading the mail system JEPS not only increases the available CPU power for critical tasks, but...
- Software downloads 2009-11-15
- Securing the Physical, Virtual, Cloud Continuum
- Information security best practices have not changed much in 15 years -- strong perimeter defense and defense in depth are still the primary security controls. However, virtualization and cloud computing are radically altering data center operations, leading to a hybrid physical/virtual/cloud computing environment. Securing this new environment demands the adoption...
- Webcasts 2009-11-01
- Trigonomics for iPhone 1.0 (Mobile)
- Trigonomics for iPhone combines three essential tools for the student, professional, or enthusiast. It contains a triangle solver - provide the right combination of triangle side lengths and angles and Trigonomics for iPhone determines the rest. The app calculates the area and perimeter and then draws the resulting triangle that...
- Software downloads 2009-10-28
- Xyntec Automation Area Calculator 1.0 (Windows)
- Area Calculator is a powerful application which enables you to quickly determine the area and perimeter of many typical two dimensional objects. Whether in school, on the job, or working in the field, this tool provides a professional look and feel while delivering accurate results. Area calculator was built, designed,...
- Software downloads 2009-10-12
- Samsung P2570HD
- Great AlternativeFirst Impression on the p2570HD:The great: Samsung?s SyncMaster P2570HD offers plenty of inputs, a descent HDTV monitor, basic speakers, and a remote control with all necessary features. Also, great style and very good performance are included in a panel less than 2? deep.The bad: No VGA cable, no...
- Discussion threads 2009-09-27
- Why Can't We Clean RIM's Sticky Balls?
- Or, instead of pitching a fityou could ask if anyone has figured out a way to clean the trackball.Here's one: Dampen a lint-free cloth with alcohol. Place it on the table. WIth your blackberry turned off, press the trackball firmly on the damp pad and move it rapidly back and...
- Discussion threads 2009-09-08
- Anticipating Sharepoint 2010: Making Enterprise Foundations More Flexible?
- Last weekend's New York Times technology section piece about Microsoft Sharepoint is still their ninth most emailed tech story nearly a week later. 'Microsoft’s SharePoint Thrives in the Recession' is very general: Companies like Ferrari, Starbucks and Viacom have used SharePoint to...
- Blog posts 2009-08-13
- OrthoGraph Survey 1.1.4 (Windows)
- OrthoGraph Survey is a professional solution for building surveys (i.e. floor plan, elevation and cross-section surveys). The software is built for appraisers, insurance inspectors, architects, real-estate agencies, CAFM companies, flooring installers and anyone who needs digitized drawings or to calculate the area and perimeter of a floor plan even on-site....
- Software downloads 2009-08-11
- Rupert Murdoch's grand subscription plan: Much ado over minimal revenue?
- Rupert Murdoch's grand subscription plan: Much ado over minimal revenue?Won't workThe only way News will get their revenue offset is if 'the pipe' is charged; in other words ISPs get charged and pass along the cost to you in the form of an increase surcharge on your broadband account.When a...
- Discussion threads 2009-08-06
- Area Calculator (Mobile)
- is a powerful application which enables you to quickly determine the area and perimeter of many typical two dimensional objects.Whether in school, on the job, or working in the field, this tool provides a professional look and feel while delivering accurate results.The Windows Mobile device lends itself well to support...
- Software downloads 2009-07-22
- Area Calculator (Mobile)
- is a powerful application which enables you to quickly determine the area and perimeter of many typical two dimensional objects.Whether in school, on the job, or working in the field, this tool provides a professional look and feel while delivering accurate results.The Windows Mobile device lends itself well to support...
- Software downloads 2009-07-22
- An Evaluation of Current Web Application Rewall Capabilities and Techniques
- To protect an organisation from attacks on their IT infrastructure, perimeter firewalls are nowadays means of standard protective measures. Attacks on the application layer (e.g. web applications) cannot be effectively prevented by those systems as HTTP and HTTPS requests usually pass the firewalling mechanisms unaltered and are forwarded directly to...
- White papers 2009-07-04
- Practical Advantages of Fireware XTM for Hands-On IT Administrators
- This paper is written for IT professionals currently comparing the merits of various network security appliances. If the notion of firewalls being commodities was ever true, it certainly is not now. In this era of Unified Threat Management UTM devices, firewalling is just one aspect of a multi-faceted perimeter defense...
- White papers 2009-07-01
- Credit Unions Find Protection in Data Loss Prevention Technology
- Although perimeter security systems have been preventing network attacks from the outside for decades, credit unions are now focusing on innovative new security solutions which add another layer of critical protection. Instead of thwarting attacks from the outside in, Data Loss Prevention DLP systems prevent sensitive data from leaving the...
- White papers 2009-06-29
- Philips Streamium NP2900
- When the Logitech Squeezebox Boom came out last year, it set a new standard for Wi-Fi radios. Yes, it was expensive, but it offered excellent sound quality, a smart design, and tons of features in a tiny package--no competing products even came close. The Philips NP2900 is the first real...
- Product reviews 2009-06-02
- Leaked: Third-gen iPhone bezel
- China Ontrade, a Hong Kong parts seller, posted an image late Wednesday of what it claims to be the first replacement bezel for the third-generation iPhone. Claiming that the design comes "directly from [the] factory," the bezel could be identical to the bezel that Apple plans...
- Blog posts 2009-05-28
- S10 RedEyes 3 (Windows)
- S10 RedEyes is a sophisticated red-eye removal program that also functions as a general-purpose photo editor. It features a circular/elliptical eye selection tool - not rectangular as in other programs - and it smoothly removes redness, with pixel blending along the perimeter (anti-aliasing). Eye brightness, pupil brightness, and eye color...
- Software downloads 2009-05-16
- Five IT security pet peeves
- Five IT security pet peevesI feel your pain.I've offered and encouraged people I correspond with to use PGP or some variant thereof many times over the years. Despite its being so easy to use, with plugins for just about every popular mail client, no one will. I think...
- Discussion threads 2009-05-06
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