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ANTI VIRUS

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Antivirus (or "anti-virus") software is a class of program that searches your hard drive and floppy disks for any known or potential viruses. The market for this kind of program has expanded because of Internet growth and the increasing use of the Internet by businesses concerned about protecting their computer assets.
www.primode.com/glossary.html

A software program designed to identify and remove a known or potential computer virus
www.sec-1.com/glossary/a.html

A software program which helps protect a computer against being infected by a virus.
ths.gardenweb.com/faq/lists/comphelp/2005011632014938.html

This refers to the University's anti-virus software, available through the Download Center and on the Toolkit CD-ROM. Though the product is from Symantec, on Windows it is called "Symantec AntiVirus" and on the Mac it is called "Norton AntiVirus."
computing.wayne.edu/Help_Desk/glossary.php

Antivirus software is a type of application you install to protect your system from viruses, worms and other malicious code. Most antivirus programs will monitor traffic while you surf the Web, scan incoming email and file attachments and periodically check all local files for the existence of any known malicious code.
www.techdirectcomputers.com/Encyclopedia.htm

Anti-virus software consists of computer programs that attempt to identify, thwart and eliminate computer viruses and other malicious software (malware).
en.wikipedia.org/wiki/Antivirus

FIREWALL

(fīr´wâl) (n.) A system designed to prevent unauthorized access to or from a private network. Firewalls can be implemented in both hardware and software, or a combination of both. Firewalls are frequently used to prevent unauthorized Internet users from accessing private networks connected to the Internet, especially intranets. All messages entering or leaving the intranet pass through the firewall, which examines each message and blocks those that do not meet the specified security criteria.
There are several types of firewall techniques:

Packet filter: Looks at each packet entering or leaving the network and accepts or rejects it based on user-defined rules. Packet filtering is fairly effective and transparent to users, but it is difficult to configure. In addition, it is susceptible to IP spoofing.
Application gateway: Applies security mechanisms to specific applications, such as FTP and Telnet servers. This is very effective, but can impose a performance degradation.
Circuit-level gateway: Applies security mechanisms when a TCP or UDP connection is established. Once the connection has been made, packets can flow between the hosts without further checking.
Proxy server: Intercepts all messages entering and leaving the network. The proxy server effectively hides the true network addresses.
In practice, many firewalls use two or more of these techniques in concert.

A firewall is considered a first line of defense in protecting private information. For greater security, data can be encrypted.

ANTI VIRUS

Microsoft Makes AVG Security Products Available Directly From Windows Security Center in Windows Vista
GRISOFT today announced that Microsoft is making AVG Anti-Virus 7.5 and AVG Anti-Virus Free Edition available via Windows Security Center as a Windows Vista security solution.Read full press releaseNovember 6, 2006
GRISOFT Expands its AVG Security Solutions for GNU/Linux and FreeBSD Platforms
GRISOFT today announced several new versions of its antivirus offerings for GNU/Linux and FreeBSD open source platforms. The products include AVG Email Server Edition 7.5 for Linux/FreeBSD now with integrated anti-spam as well as new products for the GNU/Linux platform – AVG Anti-Virus Professional Edition 7.5 for Linux/FreeBSD and AVG File Server Edition 7.5 for Linux/FreeBSD.Read full press releaseNovember 20, 2006
AVG has again been certified by West Coast Labs and Virus Bulletin
Security software AVG obtained the West Coast Labs Anti-Virus Level 1 and Trojan Checkmark Certifications again and also Anti-Virus Level 2. What’s more AVG received again the VB100% Award by Virus Bulletin. To obtain all this certification it is necessary to pass extremely rigorous quality tests that reflect real-world situations involving malware threats. See the full list of our Certifications and Awards. November 5, 2006
Important AVG TCP Server Update!
As part of current improvements to the update process, a new format of update files is being introduced. The new format is not supported by obsolete versions of the AVG TCP Server (released before March, 2006 – i.e. versions 7.1.383 or older). Therefore, it is necessary to upgrade to the most current version of the AVG TCP Server or AVGINET Lite.Learn moreNovember 5, 2006
AVG protects against the Stration worm
By keeping your AVG virus database regularly updated, you can be sure you have nothing to fear from the latest "Stration" Internet worm. As this worm is morphing rapidly into new variants, it is essential that you download updates regularly.Get more information and protection against the Stration wormNovember 1, 2006
LATEST UPDATE
Update AVG 7.5 - AVI 268.14.14/ 548
Added detection of new variant of I-Worm/Stration, new variants of trojans PSW.Banker, Downloader.Zlob.November 23, 2006
Program update AVG 7.5.431
New recommended program update is available for download. MoreNovember 2, 2006
AVG Remote Administration 7.5.432
New version of AVG Remote Administration 7.5 build 432 is available for download. MoreNovember 10, 2006
DOWNLOADS
Programs
Download the latest installation package for your AVG product. The installation files are provided for customers who have purchased one of our AVG Anti-Virus Editions!
Updates
To secure the highest level of anti-virus protection, it is crucial that you update you AVG Anti-Virus regularly. Download the latest update files available.
Utilities
Download additional virus removal programs and utilities.
Documentation
Download documentation for your AVG product.


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LATEST VIRUS UPDATE
Added detection of new variant of I-Worm/Stration, new variants of trojans PSW.Banker, Downloader.Zlob.November 23, 2006
TOP THREATSI-Worm/Stration BackDoor.Generic3.GBB and .GBC Worm/Generic.FX


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How Can Anti-Virus Software Keep My Data Safe?
It’s getting harder everyday to protect your data from the dangers posed by computer viruses. These malicious programs have evolved into multiple forms and can be contracted through a variety of ways, including opening email attachments, clicking on spam or by visiting corrupt websites.Fortunately, just as viruses have grown in strength and complexity over the years, so also have the tools used to combat them. With the latest generation of anti-virus software, you can give your computer a level of protection never before possible.Today’s best anti-virus software come with multiple virus scans, allowing you to schedule scans in advance, giving you access to a variety of location-specific scans and even real-time scanning, which scan your computer every few minutes for viruses—stopping them before they can do damage.And, since new viruses are being created everyday, the most effective anti-virus programs offers convenient virus updates. Some software even offer automatic updates, which regularly and automatically check back with the manufacturer for information on new viruses, providing you the highest-level of protection at all times.However, undeniably, the most valuable thing that today’s anti-virus software brings to its consumers is plain, good-old-fashion peace of mind.In this site, you'll find articles on computer virus topics, news stories and comprehensive anti-virus software reviews that will help you make an informed decision on which anti-virus program is right for you. At TopTenREVIEWS – We do the research so you don't have to.™
What to look for in Anti-Virus Software
Top anti-virus software should be easy enough for a computer novice to both use and install. The software should effectively seek out and identify virus threats, as well as clean or isolate infected files. There should be understandable reporting available for each scan and plenty of help support available, so you can be well informed of the software’s activities and capabilities. Below are the criteria TopTenREVIEWS used to evaluate anti-virus software.
Ease of Use –Exceptional anti-virus software is simple to use, regardless of a person’s computer experience or knowledge of viruses.
Effective at Identifying Viruses and Worms – The best anti-virus products identify infected files quickly through real-time scanning, searching for viruses in a multitude of sources, including email, instant message applications, web browsing and so on.
Effective at Cleaning or Isolating Infected Files –Truly capable anti-virus software thoroughly cleans, deletes or quarantines infected files—keeping them from spreading throughout the hard drive or network.
Activity Reporting – Anti-virus programs should give immediate notification of viruses found by real-time scanners and should provide an easy-to-read report of scan results, including what it found and what it did with infected files.
Feature Set – A well-rounded feature set allows anti-virus software to provide absolute protection. The best programs are those that offer a wide variety of tools, from basic real-time scanning to more advanced, heuristic scanning and script blocking—when it comes to virus protection, the more options the better.
Ease of Installation and Setup – Anti-virus programs should be a breeze to install, making it easy to go from installation to initial scan in just a couple clicks of the mouse.
Help Documentation – High-end anti-virus software come with plenty of help, including support via email, online chat or over the telephone. There should also be online resources, such as knowledge bases and FAQs available for quick and convenient help.
So, no matter how serious a computer virus is or how quickly it is passed around, with today’s anti-virus software, you’ll always have a cure.To read our top-ranked anti-virus software review, click here.
©2007 TopTenREVIEWS, Inc.
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DATA SECURITY

Assignment:Five Articles of network administration/System administraionThis job has given me what I call my Big Red Button Dream(tm): I dream of a separate entrance to my own office, with all of the monitors, servers, workstations, and whatever I need to do my job. No one sees me enter, no one sees me leave, no one knows if I'm working or sleeping. But when anything anywhere on the network breaks, a Big Red Button on the wall starts flashing to indicate a problem. In order to solve this problem, whether it's a service outage or a new server to build and deploy, I must reach over and smack that Big Red Button. This solves the problem, and I can go back to doing whatever it is that I am or am not doing. No one knows that all I do is push a button to fix every problem out there; all they know is that with me on the job, the systems never get in the way of the work they are supposed to do. Of course, the next step in the dream is to delegate the actual smacking of the button to someone else, but that requires there be someone else in my sysadmin cell, and it all kind of breaks down then.This qualifies as a dream and not a goal because it is clearly unattainable, but maintaining this dream as a guiding ideal does a lot to keep me on what I see as the right track in my job as a sysadmin. In this two-part series, I hope to talk about how I use planning and automation in my quest to achieve this ideal, and specifically, why I begin both at the earliest possible point: when a server is built. Because not everyone truly understands the fundamental importance of planning and automation, the first part of this series will go through an explanation of the benefits of dedicating your life as a sysadmin to planning and automating everything you do, and the second part will focus on planning and automating the server build process.AutomationAlthough I see automation as being contingent on planning, it is only when automation is attempted without planning that it becomes obvious how important the planning is. Therefore, I will discuss automation first, and that discussion will hopefully enlighten us as to the importance of planning.From my perspective, automation provides five main benefits:Reducing the amount of time a given task requires.Automating a task means that less time is required each time that task is performed, which leaves more time to devote to other tasks, such as automation.Reducing the opportunity for error in a given task.Most tasks have to be done in certain ways, and leaving it to humans to perform those tasks leaves the chance that those humans will perform the task incompletely or incorrectly, or will break something essentially unrelated. When a task is automated, a preferred way can be found and the task can then be performed that way every time, essentially eliminating the chance for error in that specific task, as long as the automation was thoroughly planned and tested.Reducing turnaround time for a given task.While leaving more time for other work, automation also means that most work gets done faster. This is important in many situations, particularly while firefighting (solving service outages), performing work on production systems during short maintenance windows, or satisfying short project timelines. It is often worth spending more total time automating a task before it is needed because of the reduced time it takes to actually perform a task -- if it takes you twenty hours of scripting to successfully automate a four-hour task, but as a result you are able to fit it entirely within your server's two-hour maintenance window, then it was well worth the effort. This is, again, usually not possible without thorough planning and testing, which is often a significant portion of the automation time.Enhancing and perpetuating configuration consistency across multiple systems.In addition to humans potentially introducing error when they work, they also introduce something possibly more nefarious: individuality. Because they often cause outages of some kind, errors are usually caught and fixed, but when multiple people perform the same task in different but equally correct ways, there is no outage to catch. The problem with this situation is that once multiple people have started to do the same thing in different ways, system consistency is sacrificed. Once a network lacks overall consistency, it is far more difficult to come behind and automate. This situation also often ends up in a catch-22 of not enough to consistency to allow automation but a lack of automation causing consistency to deteriorate. In addition to making networks harder to automate, a lack of consistency also makes networks significantly more difficult to administer in general, because all the exceptions have to be kept in mind when any work is performed.Providing a limited kind of process documentation.Last but not least, an automated task is a documented task. It might not be well-documented (although hopefully the code is well-commented, at the least), but even if the person who did the automation leaves the company, you can still go behind and read the scripts. This is far superior to information leaving with an employee, and also provides a starting point for other employees to begin learning the process involved.This is quite a lot, so you shouldn't need much more convincing. But in addition to these benefits, which I consider to be fundamental to automation and the main reasons for concentrating on it, automation allows you to package up a complex, senior-level task and delegate it to someone lower on the food chain. This provides the lower-level employee the opportunity to fully understand the task by reading and using the script, and it leaves the senior-level employee time for more important tasks, such as automation. Another great thing about automation is that it builds on itself; the more you automate the small tasks, the more you can build tools which automate the automation. This is obviously how my ideal of the Big Red Button happens: the button is the top of a very large pyramid of automation tools, set up so it can diagnose and solve any problem anywhere on the network.As with all things, there are some caveats. Automation rewards in proportion to the complexity, repetition, or time consumption of a task, which means that sometimes automation ends up taking more time than it saves. Also, most of us are unfortunately hired into companies which already have computers, which often means that we walk into a situation with little or no consistency to start with; when this happens, we usually have to spend a significant amount of time bringing consistency to the network just to get to the point where we can start automating. This sometimes puts the benefits of automation far enough away so as to seem not worth it. Lastly, all automation requires significant testing, because by the time you notice there's a problem with your automation tool, it's usually too late to cancel it, and that is too large of a risk to take on a production system.Related ReadingRunning LinuxBy Matt Welsh, Matthias Kalle Dalheimer & Lar KaufmanTable of ContentsIndexSample ChaptersFull DescriptionRead Online -- SafariIn the end, though, hopefully you'll see that, in the big picture, automation almost always profits you more than it costs. If you start by only automating the tasks that you get the biggest return on and then work your way down, you will soon find that there are only a few mundane tasks left to automate. Automating those last few tasks does take more time than it specifically saves, but now with that final automation, you have basically automated all of the low-level tasks on your network, and suddenly the whole is greater than the sum of its parts: instead of having to think in concrete terms about each task on your network, your tools provide an abstraction layer between yourself and the work you must do. This abstraction layer provides you a means of changing the way you think about your work -- instead of the network defining how you work, your tools do. Hopefully you've developed your tools to work the way you want them to, but if you haven't, you can reorganize how those tools work without actually impacting the underlying work they do -- this is the real benefit of this abstraction layer that the tools provide.