OpenDNS DNSCrypt is an open-source DNS encryption tool. In layman terms, DNSCrypt is a tool for securing communications between a client and a DNS resolver (more on this later). Basically, it secures your connection from eavesdropping and man-in-the-middle attacks. Thus, hugely increasing your web browsing security. DNSCrypt is developed by the popular DNS service OpenDNS.

Let’s take an example to describe what exactly a DNS is. If you want to visit our website, you’ll type the human-readable domain name of our website, www.mytechguide.org. After you press Enter or click on the Go button of your browser, your browser will try to retrieve the IP address of our website,, before displaying our website. To know this IP address, your browser contacts a server called the Domain Name System (DNS) server. You can think of the DNS like a large phone book for the Internet, which translates the human-friendly domain names into an IP addresses.

Twitter has recently added a user setting that will let you activate ‘always use HTTPS‘ when accessing your Twitter.com account. Accessing your account using HTTPS secure connection is particularly important. This will improve the overall security of your account and will better protect your information if you’re using Twitter over an unsecured Internet connection, like a public WiFi network, where someone may be able to eavesdrop on your site activity. In the future, we hope to make HTTPS the default setting. Till now users were able to access Twitter via HTTPS by manually going to https://twitter.com. Now, Twitter have made it simpler for users by adding the option to always use HTTPS.

To turn on HTTPS for your Twitter.com account, follow the simple guide below (with helpful screenshots).

Opera 10.51 is released today and is a highly recommended update by the Opera team. This release addresses a couple of security issues, as well as various stability improvements and other bug fixes. According to the official change log, the two security vulnerabilities found in Opera 10.50 have been patched. Opera 10.51 fixes “an issue where the HTTP Content-Length header could be used to execute arbitrary code; an issue where XSLT could be used to retrieve random contents of unrelated documents”.

This update also improves the stability of the browser. A lot of Bugs are fixed in this update which spans across multiple components of the Opera web browser. This includes the user interface, mail, news and chat components, display and scripting, networking features. Numerous improvements have been done to the JavaScript engine “Carakan” which improves performance. However even after this long list of Bug fixes, Opera Software considers Opera 10.51 as an important security release only.