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How to detect operating system using user agent

In computing, a user agent is software (a software agent) that is acting on behalf of a user. For example, an email reader is a mail user agent, and in the Session Initiation Protocol (SIP), the term user agent refers to both end points of a communications session.<br />
<br />
In many cases, a user agent acts as a client in a network protocol used in communications within a client–server distributed computing system. In particular, the Hypertext Transfer Protocol (HTTP) identifies the client software originating the request, using a "User-Agent" header, even when the client is not operated by a user.<br />
<br />
<h1>
Standard User Agent browser</h1>
Most Web browsers use a User-Agent value as follows: <i>Mozilla/[version] ([system and browser information]) [platform] ([platform details]) [extensions]</i>. For example, Safari on the iPad has used the following:<br />
<br />
<pre>Mozilla/5.0 (iPad; U; CPU OS 3_2_1 like Mac OS X; en-us) AppleWebKit/531.21.10 
(KHTML, like Gecko)Mobile/7B405</pre>
The components of this string are as follows:<br />
<ul>
<li><i>Mozilla/5.0</i>: Previously used to indicate compatibility with the Mozilla rendering engine</li>
<li><i>(iPad; U; CPU OS 3_2_1 like Mac OS X; en-us)</i>: Details of the system in which the browser is running</li>
<li><i>AppleWebKit/531.21.10</i>: The platform the browser uses</li>
<li><i>(KHTML, like Gecko)</i>: Browser platform details</li>
<li><i>Mobile/7B405</i>: This is used by the browser to indicate 
specific enhancements that are available directly in the browser or 
through third parties. An example of this is Microsoft Live Meeting 
which registers an extension so that the Live Meeting service knows if 
the software is already installed, which means it can provide a 
streamlined experience to joining meetings.</li>
</ul>
Notable exceptions include Opera, which is a web browser, but does not include Mozilla in its User-Agent string.<br />
<br />
<h1>
Window User Agent</h1>
<pre>Mozilla/5.0 (Windows NT 5.1; rv:5.0) Gecko/20100101 Firefox/5.0</pre>
<ul>
<li><i>Windows NT 5.1; </i>: Window XP operating system as platform</li>
<li><i>Firefox/5.0</i>: Mozilla Firefox version 5.0 as a browser</li>
</ul>
<br />
<pre>Mozilla/5.0 (Windows NT 6.0) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.120 
Safari/535.2</pre>
<ul>
<li><i>Windows NT 6.0</i>: Window Vista operating system as platform</li>
<li><i>Chrome/15.0.874.120</i>: Google chrome version 15.0.874.120 as a browser</li>
</ul>
<br />
<pre>Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)</pre>
<ul>
<li><i>Windows NT 6.1</i>: Window 7 operating system as platform</li>
<li><i>MSIE 10.0</i>: Internet explorer version 10 as a browser</li>
<li><i>WOW64;</i>: A 32-bit window application is running on a 64-bit processor</li>
</ul>
<br />
<pre>Mozilla/5.0 (Windows; U; Windows NT 6.2; en-US) AppleWebKit/533.20.25 (KHTML, like Gecko)
Version/5.0.4 Safari/533.20.27</pre>
<ul>
<li><i>Windows NT 6.2</i>: Window 8 operating system as platform</li>
<li><i>Version/5.0.4 Safari/533.20.27</i>: Safari version 5.0.4 as a browser</li>
<li><i>U;</i>: Security value (N for no security, U for strong security, I for weak security)</li>
</ul>

How to detect operating system using user agent

In computing, a user agent is software (a software agent) that is acting on behalf of a user. For example, an email reader is a mail user ag...

How to create facebook open graph/seo on blogspot

This is and example to use facebook open graph and you can edit more on facebook developer.Open graph offers many commonly used actions and objects, which you can start using right away, or you can create custom stories specific to your facebook app.<br />
<br />
<h3>
Creating Object Types</h3>
Objects are the "nouns" or targets for actions taken by people in your facebook app. They are represented by HTML markup on a particular URL which uniquely defines each object. You can use one of the common objects when creating a story or define your own custom object types. You can refer to facebook developer on <a href="http://goo.gl/HZtlvY" rel="nofollow" target="_blank">https://developers.facebook.com/docs/opengraph/creating-object-types/#properties</a><br />
<br />
<br /><pre  style="font-family:arial;font-size:12px;border:1px dashed #CCCCCC;width:99%;height:auto;overflow:auto;background:#f0f0f0;;background-image:URL(https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEioGLmb-hQK_k3NcEuv4M23qo1WEp4FA9B4ou74WhFZAEWlK1bStKo3-M7hK3PeqxKIwAWrmgJb4fkpIQPSok8c64L0jLBtgCu9h9xzw9-40YQhAlVZa0hqyoLNS-nVSPOhkg0lRN9TRLhC/s320/codebg.gif);padding:0px;color:#000000;text-align:left;line-height:20px;"><code style="color:#000000;word-wrap:normal;"> // Add this to open html tag  
 <html expr:..... xmlns:fb='http://ogp.me/ns/fb#'>  
 // Or add this to head tag. I prefer to use both.  
 <head prefix='og: http://ogp.me/ns# fb: http://ogp.me/ns/fb# blog: http://ogp.me/ns/blog#'>  
 //Get your profile id like this https://www.facebook.com/profile.php?id=4  
 <meta content='YOUR_PROFILE_ID' property='fb:admins'/>  
 //Make you fb application on https://developers.facebook.com/apps?ref=ezadblog.my  
 <meta content='YOUR_APP_ID' property='fb:app_id'/>  
 <meta content='blog' property='og:type'/>  
 <meta content='en_US' property='og:locale'/>  
 <meta content='YOUR_BLOG_TITLE' property='og:site_name'/>  
 <meta expr:href='data:blog.url' property='og:url'/>  
 <meta expr:content='data:blog.pageTitle' property='og:title'/>  
 //This will show your post search description  
 <b:if cond='data:blog.metaDescription != &quot;&quot;'>  
 <meta expr:content='data:blog.metaDescription' property='og:description'/>  
 <b:else/>  
 //If dont have search description it will show this.edit this description.  
 <meta content='Ezad Blog is a blog for EzadNet (http://www.ezadnet.my). Information about website,network,security and many more over the internet.' property='og:description'/>  
 </b:if>  
</code></pre>
<br />
Delete comment start with // when you using on your blog and test your post url on <a href="http://goo.gl/pOykNk" rel="nofollow" target="_blank">https://developers.facebook.com/tools/debug/</a>.Hope this article help you.Leave a comment if you have a question.

How to create facebook open graph/seo on blogspot

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How your Browser Speeds up Cross Domain Loading using DNS Prefetching

<strong>How it Works</strong><br>
What DNS prefetching does is attempt to resolve domain names before 
we, the  users, try to follow a link. This is accomplished using the 
computer's built-in  DNS resolution mechanism. Once a domain name has 
been resolved, if we do  navigate to that domain, there will be no 
effective delay due to DNS resolution  time. While downloading speed 
remains the same, looking up the IP address before  hand will save you 
an easily perceptible second or two when going from page to  page. A 
good example where DNS prefetching can really help is when a user is  
looking at a page with many links to various domains, such as a search 
results  page. When the browser encounters an a hyperlink that does not 
share the same  domain name as the current location, it first checks its
 cache and then, lacking  a cached copy, resolves the domain to the 
associated IP address through a  request from a DNS server. These 
requests happen in the background so as to not  block the rendering of 
the page. Moreover, since all this takes place in  parallel with the 
user's reading of the page, it places only a negligible load  on CPU and
 network resources. How much navigation time will a user save can  range
 from an average savings of about 200 milliseconds for non-cached 
content,  to one to two seconds for the worst DNS resolution delays.<br>
By default, prefetching of embedded link hostnames is not performed 
on  documents loaded over HTTPS. You can change this by setting the  
network.dns.disablePrefetchFromHTTPS browser preference to false.<br>
<br>

How your Browser Speeds up Cross Domain Loading using DNS Prefetching

How it Works What DNS prefetching does is attempt to resolve domain names before we, the users, try to follow a link. This is accomplishe...

Wireless Threats: Is Your Broadband Secure Enough?

<div class="MsoNormal">
Internet use in Malaysia is at an all-time high and is still
growing, and broadband adoption is rapidly spreading along with mobile
connectivity. In this environment of increasing digital interconnection,
security threats are likewise growing in number.<o:p></o:p></div>
<div class="MsoNormal">
As an active broadband user, you at least need to know the
threats and the preventive measures available to pre-empt them.<o:p></o:p></div>
<h2>
Increased Risk, Improved Security<o:p></o:p></h2>
<div class="MsoNormal">
Findings from industry leaders and research institutions
like Alcatel-Lucent are showing signs of an increased number of security
threats to broadband networks, both fixed and mobile. Data points out that the
wireless threat trend is growing with telling statistics, including:<o:p></o:p></div>
<div class="MsoNormalCxSpMiddle" style="margin-bottom: .0001pt; margin-bottom: 0in; margin-left: .5in; margin-right: 0in; margin-top: 0in; mso-add-space: auto; mso-list: l3 level1 lfo4; text-indent: -17.95pt;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: Arial;">●<span style="font-family: 'Times New Roman'; font-size: 7pt;">     </span></span><span dir="LTR"></span>10% of home networks have been infected by Malware in the second
quarter of 2013<o:p></o:p></div>
<div class="MsoNormalCxSpMiddle" style="margin-bottom: .0001pt; margin-bottom: 0in; margin-left: .5in; margin-right: 0in; margin-top: 0in; mso-add-space: auto; mso-list: l3 level1 lfo4; text-indent: -17.95pt;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: Arial;">●<span style="font-family: 'Times New Roman'; font-size: 7pt;">     </span></span><span dir="LTR"></span>6% of home networks were shown to exhibit high-level security
threats, including rootkits and Trojan banking viruses<o:p></o:p></div>
<div class="MsoNormalCxSpMiddle" style="margin-left: .5in; mso-add-space: auto; mso-list: l3 level1 lfo4; text-indent: -17.95pt;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: Arial;">●<span style="font-family: 'Times New Roman'; font-size: 7pt;">    
</span></span><span dir="LTR"></span>0.5% of mobile were invaded
by Malware in the second quarter of 2013<o:p></o:p></div>
<div class="MsoNormal">
Compared to data from the previous quarter, the numbers
indicate a rise in threats to broadband networks. The research was conducted in
Europe, but the same analysis would apply especially for a boisterous and
dynamic market full of technologically-agile users like Asia.<o:p></o:p></div>
<div class="MsoNormal">
These security threats are being used by hackers to perform
illicit activities ranging from the simply annoying, like spamming, to the
devastatingly dangerous, like personal identification theft and espionage.<o:p></o:p></div>
<h2>
Broadband Gateways<o:p></o:p></h2>
<div class="MsoNormal">
Broadband networks are 500% more prone to security threats
compared to other forms of internet connectivity, including dial-up. Hackers
typically perform three general activities when breaking into wireless
networks:<o:p></o:p></div>
<div class="MsoNormalCxSpMiddle" style="margin-bottom: .0001pt; margin-bottom: 0in; margin-left: .5in; margin-right: 0in; margin-top: 0in; mso-add-space: auto; mso-list: l1 level1 lfo3; text-indent: -17.95pt;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: Arial;">●<span style="font-family: 'Times New Roman'; font-size: 7pt;">     </span></span><span dir="LTR"></span>Use them as stepping stones to perform more attacks<o:p></o:p></div>
<div class="MsoNormalCxSpMiddle" style="margin-bottom: .0001pt; margin-bottom: 0in; margin-left: .5in; margin-right: 0in; margin-top: 0in; mso-add-space: auto; mso-list: l1 level1 lfo3; text-indent: -17.95pt;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: Arial;">●<span style="font-family: 'Times New Roman'; font-size: 7pt;">     </span></span><span dir="LTR"></span>Use them to store illegal copies of software or digital goods<o:p></o:p></div>
<div class="MsoNormalCxSpMiddle" style="margin-left: .5in; mso-add-space: auto; mso-list: l1 level1 lfo3; text-indent: -17.95pt;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: Arial;">●<span style="font-family: 'Times New Roman'; font-size: 7pt;">    
</span></span><span dir="LTR"></span>Launch waves of unsolicited
activities (spamming, illegal information collection, et al)<o:p></o:p></div>
<div class="MsoNormal">
Malware, viruses, and hackers share the same “gateways” to
attack your broadband connection or network. Some of the most common entryways
include:<o:p></o:p></div>
<div class="MsoNormalCxSpMiddle" style="margin-bottom: .0001pt; margin-bottom: 0in; margin-left: .5in; margin-right: 0in; margin-top: 0in; mso-add-space: auto; mso-list: l2 level1 lfo2; text-indent: -17.95pt;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: Arial;">●<span style="font-family: 'Times New Roman'; font-size: 7pt;">     </span></span><span dir="LTR"></span><b>Phishing</b> – Ever
received a suspicious email claiming to be from your bank, asking for personal
information? Phishing is nearly as old as email itself, but modern variations
can be very complex, making it difficult for the layman to see it for what it
is. Some phishing setups even buy official-sounding domain names and setup
email addresses from them and then contact people.<o:p></o:p></div>
<div class="MsoNormalCxSpMiddle" style="margin-bottom: .0001pt; margin-bottom: 0in; margin-left: .5in; margin-right: 0in; margin-top: 0in; mso-add-space: auto; mso-list: l2 level1 lfo2; text-indent: -17.95pt;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: Arial;">●<span style="font-family: 'Times New Roman'; font-size: 7pt;">     </span></span><span dir="LTR"></span><b>Cookies</b> – Cookies are
your browser’s way to track your internet surfing activities to make sure it
keeps your preferences for websites you visit regularly. Unfortunately, because
cookies can store information like passwords and other similarly telling data
on your activities and behaviour online, they are also usually targeted by
hackers.<o:p></o:p></div>
<div class="MsoNormalCxSpMiddle" style="margin-bottom: .0001pt; margin-bottom: 0in; margin-left: .5in; margin-right: 0in; margin-top: 0in; mso-add-space: auto; mso-list: l2 level1 lfo2; text-indent: -17.95pt;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: Arial;">●<span style="font-family: 'Times New Roman'; font-size: 7pt;">     </span></span><span dir="LTR"></span><b>Spyware, adware, malware</b>
– All of these virus-ware are designed with devious endeavors: spyware spies on
your computer activities, adware collects information on your behaviour online
so it can spam you with ads, and malware is generally any piece of code intent
on causing harm to your computer in any way. All of these can be gateways into
your broadband network.<o:p></o:p></div>
<div class="MsoNormalCxSpMiddle" style="margin-left: .5in; mso-add-space: auto; mso-list: l2 level1 lfo2; text-indent: -17.95pt;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: Arial;">●<span style="font-family: 'Times New Roman'; font-size: 7pt;">    
</span></span><span dir="LTR"></span><b>Ports</b> – Your computer interfaces with other devices connected to it
via “ports,” and a single computer can have thousands of ports. A good number
of them connect to your network, and each one is a vulnerability that can
potentially be taken advantage of.<o:p></o:p></div>
<div class="MsoNormal">
These are just a handful of examples, and hackers are
usefully ready to exploit them all and more to get what they want.<o:p></o:p></div>
<h2>
Implementing Measures for Tighter Wireless Security<o:p></o:p></h2>
<div class="MsoNormal">
It’s not all hopeless, gloom, and doom for your broadband
network. Your firewall, your anti-virus, and the individual efforts implemented
by your trusted websites and service providers all counter and pre-empt any
malicious attempts to compromise your network or your computer.<o:p></o:p></div>
<div class="MsoNormal">
For your part, the first step is to arm yourself with
knowledge on how these wireless threats affect you, and how they work, so you
can prepare properly. If you know how a phishing scam works you’re less likely
to be victimized, right?<o:p></o:p></div>
<div class="MsoNormal">
Beyond that, however, there are always best practices you
can adhere to so you can ensure that you are part of the fight against these
wireless broadband threats:<o:p></o:p></div>
<div class="MsoNormalCxSpMiddle" style="margin-bottom: .0001pt; margin-bottom: 0in; margin-left: .5in; margin-right: 0in; margin-top: 0in; mso-add-space: auto; mso-list: l0 level1 lfo1; text-indent: -17.95pt;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: Arial;">●<span style="font-family: 'Times New Roman'; font-size: 7pt;">     </span></span><span dir="LTR"></span>Faithfully install and upgrade software, apps, games, and
anything installed in your device. These patches and updates are typically
offered free by providers, as they are also constantly fighting against
broadband threats.<o:p></o:p></div>
<div class="MsoNormalCxSpMiddle" style="margin-bottom: .0001pt; margin-bottom: 0in; margin-left: .5in; margin-right: 0in; margin-top: 0in; mso-add-space: auto; mso-list: l0 level1 lfo1; text-indent: -17.95pt;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: Arial;">●<span style="font-family: 'Times New Roman'; font-size: 7pt;">     </span></span><span dir="LTR"></span>Always use a firewall. Your firewall is your sifter that screens
potentially dangerous information and stops it from ever going into your
computer or network. You have a network firewall and a computer firewall, at
the very least. You can control its settings to allow trusted data to always
pass through, which still provides sufficient flexibility for good security.<o:p></o:p></div>
<div class="MsoNormalCxSpMiddle" style="margin-bottom: .0001pt; margin-bottom: 0in; margin-left: .5in; margin-right: 0in; margin-top: 0in; mso-add-space: auto; mso-list: l0 level1 lfo1; text-indent: -17.95pt;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: Arial;">●<span style="font-family: 'Times New Roman'; font-size: 7pt;">     </span></span><span dir="LTR"></span>Deploy an anti-virus. Anti-virus providers always try to keep
abreast of developments in the industry, and are always updating their
databases so your software always knows about the latest viruses or other threats
to your security.<o:p></o:p></div>
<div class="MsoNormalCxSpMiddle" style="margin-left: .5in; mso-add-space: auto; mso-list: l0 level1 lfo1; text-indent: -17.95pt;">
<span style="font-family: "Arial","sans-serif"; mso-fareast-font-family: Arial;">●<span style="font-family: 'Times New Roman'; font-size: 7pt;">    
</span></span><span dir="LTR"></span>Use an Intrusion Detection
System (IDS). An IDS does exactly what it sounds like: it provides warnings
about potential attacks or illicit entries into your system. It can also
monitor critical areas of your computer or network.<o:p></o:p></div>
<div class="MsoNormal">
<br /></div>
<br />
<div class="MsoNormal">
Ask your service providers for more information and more
options to prepare yourself against wireless threats to broadband security.<o:p></o:p><br />
<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="http://www.gravatar.com/avatar/b2a4f04659d5bb4b310e233323ed8190.png" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img alt="Ian G. Elbanbuena" border="0" src="http://www.gravatar.com/avatar/b2a4f04659d5bb4b310e233323ed8190.png" title="Ian G. Elbanbuena" /></a></div>
<span style="font-family: Calibri, sans-serif; font-size: 11pt; line-height: 107%;"><a href="https://plus.google.com/u/0/110532977385282494579/" target="_blank"><span style="color: #1155cc;">Ian G. Elbanbuena</span></a> is a blogger and infopreneur
who writes on various topics mainly finance, web security, network connections,
broadband plans and other technical topics . At present he works as marketing
staff at <a href="http://comparehero.my/" target="_blank"><span style="color: #1155cc;">comparehero.my</span></a>,
Malaysia's leading comparison website. This portal helps individuals in making
the best decision by comparing rates from different  finance providers.</span></div>

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New Standard Pushes for a More Secure Web

There is no silver bullet when it comes to encryption. Even the most complex, invulnerable encryption today could be child’s play in the future. The NIST (National Institute of Standards and Technology) is <a href="http://www.pcworld.com/businesscenter/article/260922/new_nist_encryption_guidelines_may_force_federal_agencies_to_replace_old_websites.html">publishing new encryption standards</a> for public review to try and keep up with the times and stay a step ahead of the bad guys. <br>
<a href="http://images.pcworld.com/images/article/2012/04/secure_browser-11351369.jpg"><img alt="" height="227" src="http://images.pcworld.com/images/article/2012/04/secure_browser-11351369.jpg" width="320"></a>The NIST is a government agency, and its guidelines only really impact other government agencies. However, many security experts and organizations look to the NIST standards as a baseline. <br>
All of security is more or less a game of cat and mouse. Security measures are put in place, and they work for a while until attackers find the weak spots, or figure out how to compromise or circumvent them. Then, security experts have to devise new methods, and the game starts over. Website encryption, and the certificates we use to prove a site is legitimate, are subject to this same cause and effect.<br>

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Defcon Wi-Fi Hack Called No Threat to Enterprise WLANs

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