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Archive for the ‘Tips and Tricks’ Category

Make sure that your online transaction is secure

March 24th, 2009 No comments

Thieves are no longer only after your wallet, jewels, artwork or other precious belongings. Instead, the new age cyber criminals exploit the vulnerabilities of the system.

padlockWeb browsers such as Internet Explorer, Opera and Firefox display a padlock icon to indicate that the website is secure.  

 

Whenever you are entering sensitive information like Social Security number(SSN) or Credit Card details, make sure that the url contains the prefix ">">https://

Hyper Text Transfer Protocol Secure (HTTPS) is a secure version of the Hyper Text Transfer Protocol (http). HTTPS allows to secure e-commerce transactions, such as online banking.

When a user connects to a website via HTTPS, the website encrypts the session with a digital certificate.

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Boost your internet surfing with a a faster DNS

March 21st, 2009 No comments

OpenDNS is a free alternate service to replace your ISP’s DNS service.

Opendns_logo There’s a simple way you can get to Web sites faster, and the great thing is that it won’t cost you a single penny. You can hack the way your PC uses the Domain Name System (DNS), the technology underlying all Web browsing. It’s far simpler to do than you might imagine.

Before you start, let us see how a DNS works. When you type in a URL such as www.google.com, that URL needs to be translated into a numeric IP address that Web servers and Internet routers can understand. When you type in a URL, a DNS server does the translation, from www.google.com to 74.125.45.100, for example. Type this IP address to your browsers address bar and feel how fast the page loads.

DNS servers live on the Internet, and your computer contacts them with the request to do that translation, which is commonly called name resolution. When you use an ISP, your computer will automatically use the default DNS servers specified by your ISP, you typically don’t need to set up DNS in any way. If you’re on a corporate network, your systems administrator may have configured it.

If there’s a delay in contacting the DNS server, or if the DNS server takes too much time resolving the address, you’ll face a delay in getting to a Web site. So even if you’ve got the world’s fastest pipe, your Web surfing will be slowed down.

If you could speed up the name resolution in some way, you’d be able to speed up your Web surfing. And that’s exactly what we are going to do.

By placing company servers in strategic locations and employing a large cache of the domain names,OpenDNS usually processes queries much more quickly than your ISP’s DNS service, thereby increasing page retrieval speed.

The service includes other benefits too, such as phishing filter, domain blocking and typo correction (for example, typing google.cm instead of google.com). By collecting a list of malicious sites, OpenDNS blocks access to these sites when a user tries to access them through their service.

phishing-site-blocked

Advantages:

  • Faster internet surfing experience
  • Easy to Setup
  • Universal (users all over the world from various internet service providers can use this)

What you need to do is to change your DNS servers information on your computer or router to 208.67.222.222  as primary DNS server and 208.67.220.220 as secondary server.

Changing DNS settings on Windows XP

Network Connections—>Local Area Connection—>Properties—>Internet Protocol(TCP/IP)

opendnssettings

They make their money when you misspell a domain name, or DNS doesn’t resolve, and you’ll get a search page with their advertisers.

OpenDNS recently launched Phishtank, where users around the world can submit and review suspected phishing sites.

So why don’t you try out ?

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Let Win2k/XP to utilize your L2 cache properly

February 4th, 2009 No comments

Users of Windows 2000 or XP have to manually tell the OS, the size of L2 cache in your processor otherwise it won’t be used properly.It’s fairly easy to fix.
Click on the Start button then go to Run. From there type REGEDIT and press the “Ok” button, it opens the Registry Editor, follow this path. Hkey_local_machine, System, CurrentControlSet, Control, Session Manager, Memory Management
Once you’re in the Memory Management folder look for the DWORD value
secondleveldatacache.
Right click on that and go to modify. Very important you have to change the Base from Hexadecimal to Decimal before modifying the values. After that’s done just enter your L2 cache size.If you don’t know the actual size of L2 cache refer my old post about CPU-Z which could accurately identify the genre of your processor along with the size of its L1 & L2 cache memory.
After that’s done you should notice your programs have become more zippy and the system is less sluggish.

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