With the large number of hackers and the increasing threat from overseas hackers, more and more business are at risk for attack and exploitation. There are many types of hackers and certainly many degrees of intent and purpose. The majority of hackers are usually programmers and network security specialists, who likely have a day job under the guise of the 9-to-5 John Doe. Your business could be vulnerable to attack from internal sources as well as external. The question remaining to present to your programmers and network administrators: “Is anyone here a skilled hacker?” Continue reading Is Your Programmer or Network Admin A Hacker? Better Ask!
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So, your video driver on ubuntu got screwed up and your screen looks like frell or is useless… time to perform an Ubuntu video driver repair. This is simple in most cases and you can try thye following: Hit Ctrl+Alt+F1 when you get stuck at the “Boot Scripts” part, or even at the login screen. Give this a try even if the login screen doesn’t appear, but you think it’s there. You should then see a standard white text on black screen interface for terminal control. Now, enter the following with subsequent authentication: sudo dpkg-reconfigure xserver-xorg Ubuntu should walk you through some easy to answer questions, using the arrows and tab key to navigate and accept or reject options. Enter the “sudo reboot” when it’s done and you should be good to go… Wow, what an illuminating story! You can find the original here… I just got my first application in the iTunes App Store, and I wanted to tell the story of what it’s like to publish one, from start to finish. The app, NetAwake, is an independent project I wrote with my friend Joshua. It makes an interesting story, I think, because unlike the sordid tale of some people’s struggle to get accepted into the iPhone developer program, my personal experience was perfectly normal. (As far as I know.) But even a perfectly normal experience with the iPhone developer program is intensely weird. Compared to the simplicity of developing and distributing a Mac app, Apple’s iPhone program is extremely convoluted and strange. Here’s the story, step by step. Continue reading The iPhone Development Story As a marriage slips toward divorce, couples often seek out counselors. You can avoid a split if you understand and then address the reasons for drifting apart. So it is with email. If you understand why people might want to leave a list, you can take steps to address the problem and keep them happily married to your offers and content. Here are four typical reasons for unsubscribing and how you can best respond… Continue reading Decreasing Email Unsubscription Rates Does your Flash movie stop working because your links need the crossdomain.xml file, but you can’t place it at the root level? The crossdomain.xml file can be relocated to non-root locations, and that location can be defined in your Flash movie. The code is at the bottom of this article, and below is some expert advice on Flash security and cross site request forgery issues you must understand to protect your site. When an attempt is made to load content into a SWF file at runtime, the request is subject to the Flash Player security model, which is in place to protect users and website owners. As part of this model, Flash Player by default prevents cross-domain loading of data, but allows cross-domain sending of data. This security model was set up to parallel the default settings provided in most web browsers. Flash Player does, however, allow you to make exceptions by placing a cross-domain policy file on the server where the content is stored. Cross-domain policy files are a Flash Player security control that you can use to enable data loading between domains. This powerful functionality allows Flash- and Flex-based rich Internet applications (RIAs) to exchange information in ways that are not possible in applications built with AJAX, DHTML, or JavaScript. This article discusses some of the common security issues that you should consider when deciding how to use a cross-domain policy file on your server. In general, websites using cross-domain policy files increase their security exposure. This is because the cross-domain policy file used by Flash Player allows access to information by more domains than are allowed in the default configuration. As with any security mechanism, use of the cross-domain policy requires careful analysis of the proposed application architecture and threat model to understand potential risks. Note: Using a cross-domain policy file could expose your site to various attacks. Please read this document before hosting a cross-domain policy. Continue reading crossdomain.xml Policy File Issues With Flash Player This is the second part of my four-part series, Active Client Pages – Ajax Approach. In this part of the series, we continue our discussion of the Ajax features we will need to use with ACP, and then we look at the principles of the Ajax approach. XMLHttpRequest Object Ajax Browsers All Ajax requests in JavaScript begin by making a call to the XMLHttpRequest constructor function:
In IE6 and below, the XMLHttpRequest() is not supported, but instead relies on the proprietary ActiveXObject for Ajax requests. To create this object, and deal with different browsers, we are going to use a “try and catch” statement. Continue reading PHP & AJAX Active Client Pages With the web and business web sites accessible by everyone (including malicious hackers) the security of your web application is at the top of the list of security issues on experienced PHP web developers’ minds. Lets look at some security concerns of PHP Security Developers, and what they can do to make their web applications more secure. Introduction |
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