Finding the right Mac for you.

Written by Stephen Howson

Sorepparttar lure of buying a Mac has finally overcome you and you’re going to takerepparttar 143837 plunge. The only problem is that when you start to look at machines there are to many to choose from. Do you pick new or used / refurbished, Power Mac, iMac, eMac, Mini, G3, G4, G5... argghhh.. Hopefully this article will help you through that decision.

As with all machines, Mac or Intel based… whoops.. non-Mac Intel based, you should get what you need, not what’s “cool” atrepparttar 143838 time. Think about what you want to do withrepparttar 143839 machine, weather you’re going to want to upgrade inrepparttar 143840 future and how much you want to spend. Just because it might be tempting to get dual processor 2.7Ghz PowerMac G5, doesn’t mean you need it.

Here’srepparttar 143841 deal, there are basically three processors you’re going to be dealing with; G3, G4 and G5. All of them will run versions of OSX up to 10.4.1, which isrepparttar 143842 most current atrepparttar 143843 time of this article.

A bit aboutrepparttar 143844 processors:

Inrepparttar 143845 interest of compatibility I would recommend going with a G4 or G5 asrepparttar 143846 G3 is getting aged. However, if you’re just usingrepparttar 143847 machine for email and browsingrepparttar 143848 web, a G3 iMac is a good machine.

The G4 is a 32 bit processor and will allow you speeds up to 1.42Ghz – These machines are more than sufficient forrepparttar 143849 average user. The G5 is a 64 bit processor and will allow you speeds up to 2.7Ghz – These are more for gamers, advanced to power users and developers. This may be overkill if you just want an internet machine, email, word processing, etc…

A little aboutrepparttar 143850 machines:

Mini – Most inexpensive Entry level G4 based machine. Very small and compact and does not come with a keyboard or mouse.

eMac – Most inexpensive All-in-one entry level. This resemblesrepparttar 143851 G3 style iMacs. They resemble a CRT monitor, but containrepparttar 143852 display and machine ‘All-in-One’.

iMacs – These machine are available in G4 or G5 (or G3 listed above). These are mid-priced all-in-one, mid-level machines. The G4 have half circle base and an ‘arm’ with a flat screen monitor attached. The G5 iMac basically looks like a flat screen, but isrepparttar 143853 entire machine. These machines are excellent machines forrepparttar 143854 average user that is not going to want to add internal drives, upgraderepparttar 143855 video card, etc. External drives can be added viarepparttar 143856 USB2 or Firewire ports.

Vulnerability Assessment and Network Security

Written by Vlad Sharoiko

Dicar Networks 97 East Brokaw Road Suite #230 San Jose, CA 95112


Network security is a dynamic process because ofrepparttar new threats and vulnerabilities that are uncovered every day. Your software may be secure today, butrepparttar 143730 intense pace of upgrades will continue to createrepparttar 143731 openings for new issues to arise. According to statistics released byrepparttar 143732 CERT Coordination Center, more than 300 vulnerabilities are reported every month. The process of discovering them, determiningrepparttar 143733 potential security risk, and recommending fixes is called a Vulnerability Assessment.

A Network Vulnerability Assessment can:

Identify any potential security breaches a hacker could exploit

Analyze discovered vulnerabilities existing inrepparttar 143734 network

Provide a detailed explanation ofrepparttar 143735 recommended fix for each threat

Despiterepparttar 143736 fact that most security measures are put in place to protect a network fromrepparttar 143737 malicious outside world, many intrusion attempts are now happening from insiderepparttar 143738 organization. Withrepparttar 143739 proliferation of laptops and handhelds,repparttar 143740 possibility of an internal intrusion has greatly increased. For this reason, a complete assessment should be done with scanners located inside and outsiderepparttar 143741 network to determine if potential issues exist in either place.

In addition,repparttar 143742 reports generated should be structured for 2 levels of review. The Executive Report should represent a high level overview ofrepparttar 143743 number of vulnerabilities detected, whilerepparttar 143744 IT Department should receive a highly detailed report containing descriptions of each vulnerability and explanations ofrepparttar 143745 fixes recommended for each one.

The key features of a Vulnerability Assessment are:

Automated scanning of internal and external network devices Scan schedules customized to times of least activity onrepparttar 143746 network Full SSL support to scan SSLized services such as https, smtps, & imaps  Smart service recognition to detect services moved to non-standard ports Non-destructive scanning to avoid interruption of normal network activity Complete reporting designed for 2 levels of review

A Vulnerability Assessment should be performed on a monthly or quarterly basis, depending on network size and usage. New vulnerabilities are discovered every day, including ones that can provide back door access through desktops or laptops already connected torepparttar 143747 network. Even a configuration change or faulty upgrade can introduce an opportunity for breach that was not available a week ago. Testing and review on a regular basis can help discover potential issues and reducerepparttar 143748 possible damage that can be done torepparttar 143749 network, and in turn,repparttar 143750 productivity ofrepparttar 143751 organization.

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