Cellphones

Best Phone For a Wi-Fi-Only Location? 289

Posted by kdawson from the cutting-the-tower dept.
bendodge writes "I am planning on heading to a university in a remote area with very poor cellular service (the only signal is spotty Verizon voice, no data). However, the entire campus is thoroughly blanketed in Wi-Fi. I am trying to find the best and most economical 'Wi-Fi phone' or else hack one together. Belkin/Netgear sell what is essentially a portable Skype device for $180. These folks recommend outfitting an iPod Touch with a mic and VoIP apps. I am looking for something that can make and receive calls to and from landlines with incoming call notification. What experiences have Slashdot readers had and what would you recommend?"
Security

Security For Open Source Web Projects? 105

Posted by Soulskill from the get-your-hands-on-some-military-level-ice dept.
PoissonPilote writes "I'm currently developing a multi-player, browser-based game, using the good old HTML, JavaScript, PHP, and MySQL combination. Progress is good so far, and the number of players is slowly but steadily increasing. At the beginning of the project, I decided to put the entirety of my game under the MIT license, so that anyone could study the code or even start their own server for the game. However, with the increasing popularity of my project, I am starting to worry about security issues. Even though I consider myself decent at web development and am pretty sure I'm not making any classic mistakes (SQL injection, cross-site scripting, URL forgery, etc.), I am no web security expert. I didn't find any relevant examples to compare my game to, as most open source games are written in a compiled language, and no web server is at stake in those cases. Some web developer friends told me not to release the source code at all; others told me to release it only when the game will be shut down. Naturally, I'm not satisfied by either of these solutions. What approach would you recommend?"
Databases

Open Source Geographic Tracking? 84

Posted by Soulskill from the carmen-sandiego-remains-at-large dept.
Walkingshark writes "I work for a company that needs to track people and equipment across the US as they move to, work on, and leave jobs. The boss has been looking at the typical mix of closed, proprietary software and has also considered building off our existing 10-year-old SQL database (with the kind of clunky interface you'd expect from a program built in the late '90s). I'd like to be able to bring him a good open source alternative, but so far I haven't been able to find anything that can do what we need. Ultimately, we need to be able to keep track of a few thousand separate people and pieces of equipment, and to move them in dynamically created groups to and from our locations and jobsites in a way that is sharable between workstations, with updates to location entered at one station being broadcast to all clients in real time. Ideally, this program needs to also give us access to road routing similar to the capability found on Google Maps. We'd doubtless need to be able to modify the source for customization, but I was hoping there was something we could find out there that had the core functionality we're looking for."
Security

Stand-Alone Antivirus Software? 159

Posted by timothy from the lonely-job dept.
An anonymous reader writes "I work for a company that repairs specialty devices that have an embedded Mini-ATX motherboard without a CD-ROM drive and run Windows XP Home. And while the USB flash drives we insert into them have a physical write-protect tab, we still encounter a (rather annoying) display dialog from malware/viruses to remove the write-protect so the malware can infect the flash drive. We don't remove the write-protect, obviously, but would like to offer our customers the option of removing the malware/virus without having to install any software. We would rather not install/uninstall antivirus software even for one-time use, due to various licensing issues, nor do we want to connect to the Internet to use web-based online scanners. Is there any stand-alone anti-virus/anti-malware software for Windows that can be run directly from the write-protected flash drive itself?"
Math

Best Way To Publish an "Indie" Research Paper? 279

Posted by timothy from the don-your-suit-of-thick-skin dept.
alexmipego writes "I'm a developer, and a few months ago while working on a common geodesic problem (distance between two GPS points) I started to research a new algorithm that greatly improves the performance over existing algorithms. After relearning a lot of math I'm now fairly close to the final algorithm, after which I'll run extensive benchmarks comparing my algorithm with the most commonly used ones. After spending so much time on this, and if the final results are positive, I feel that simply posting this type of work on a blog might not be the best option, so I'm looking into something more formal, like a research paper. I've no experience on those, have not even read a complete one, so my first question is what resources do you recommend to learn how to write one? And even after I write it, I can't expect to be published by Science or other high-profile publications. So where should I send it to make it known by people in the respective fields and be taken seriously?"
Education

Best OSS CFD Package For High School Physics? 105

Posted by timothy from the why-not-stop-at-algebra-I? dept.
RobHart writes "I am teaching a 'physics of flight' unit to grade 11 Physics students. Part of the unit will have the students running tests on several aerofoils in a wind tunnel. I also want to expose them to a Computational Fluid Dynamics package which will allow them to contrast experimental results with those produced by the CFD package. There are a number of open source CFDs available (Windows- or Linux-based are both fine), but I don't have much time to evaluate which are the simplest to use in terms of setting up the mesh, initial conditions, etc. — a very important issue as students do not have much time in this unit." Can anyone offer insight about ease of use for programs in this niche?
Firefox

Best Browser For Using Complex Web Applications? 347

Posted by timothy from the fatal-error-encountered dept.
yanyan writes "I'm fairly new to the field of web application development. Currently I'm working on a big online ticketing system for passage and freight for a local shipping company. It's a one-man show and the system is written in Ruby and uses Rails. Aside from the requisite functionality of creating bookings the system must also print reports and tickets, and this is where I've discovered (the hard way) that most, if not all, browsers fall short. I've had to switch from Firefox 3.6.3 to Opera 10.53 because of a major printing bug in Firefox, but the latest stable Opera is also giving me its own share of problems. To complicate things, an earlier version of Opera (10.10) doesn't appear to have 10.53's printing problems, but I'm wary. What browsers and specific versions do you end up deploying for use with big, complex web apps that include printing? Also consider CSS accuracy and consistency."
Biotech

Where Does IT Fall Within Your Organization? 243

Posted by timothy from the it-is-very-important dept.
ros256 writes "I help out a relatively small (100 employees) medical device company that does not have a dedicated IT department. Instead the network admin reports to a manager in the Clinical department. Although this seems unusual to me, the organization isn't really structured at this point to have IT staff report to a department more relevant to the work they do. I've been giving thought as to where within the organization would make more sense. So, I pose this question to the Slashdot community: Where does IT fall within the organizations you work with?"
Programming

Modern Day Equivalent of Byte/Compute! Magazine? 327

Posted by timothy from the must-have-tape-drive dept.
MochaMan writes "I grew up in the '80s on a steady diet of Byte and Compute! magazines, banging in page after page of code line by line, and figuring out how sound, graphics, and input devices worked along the way. Since then, the personal computer market has obviously moved away from hobbyists intent on coding and understanding their machines down to the hardware, but I imagine there must still be a market for similar do-it-yourself articles. Perhaps the collective minds of Slashdot can divine some online sources of fun and educational mini-projects like 'write your own assembler' or 'roll your own bootloader.'"
Software

A File-Centric Photo Manager? 326

Posted by timothy from the let-me-know-what-you-find dept.
JeremyDuffy writes "I have a photo project of over 7,000 photos. I want to tag them based on location, time of day, who's in them, etc. Doing this by hand one at a time through the Windows 7 interface in Explorer is practically madness. There has to be a better way. Is there a photo manager that can easily group and manage file tags? And most importantly, something that stores the tag and other data (description etc.) in the file, not just a database? I don't care if the thing has a database, but the data must be in the file so when I upload the files to the Internet, the tags are in place."
The Almighty Buck

Getting Paid Fairly When Job Responsibilities Spiral? 495

Posted by timothy from the for-an-honest-day's-work dept.
greymond writes "I was originally hired as an Online Content Producer to write articles for a company website as well as start up the company's social media outlets on Facebook and Twitter. With budget cuts and layoffs I ended up also taking over the website facilitation for three of the company's websites (they let go of the current webmaster). During this time the company has been developing a new website and I was handed the role of pseudo project manager to make sure the developer stayed on course with the project's due date. Now that we're closer to launch the company has informed me that they don't have the budget or staff in place to set up the web server and have tasked me with setting up the LAMP and Zend App on an Amazon EC2 setup. While it's been years since I worked this much with Linux I'm picking it up and moving things along. Needless to say I want to ask for more money, as well as more resources (as well as a better title that fits my roles), but what is the best way to go about this? Of course my other thought is that I'd much rather go back to writing and working with marketing than getting back into IT."
Linux

Volume Shadow Copy For Linux? 300

Posted by Soulskill from the restorative-tux dept.
An anonymous reader writes "I was asked to manage a number of Linux servers at work. I would like to use volume snapshots to improve my backup scripts and keep recent copies of data around for quick restore. I normally manage Windows servers and on those I would just use Microsoft's Volume Shadow Copy for this. I tried Linux LVM snapshots, but most of the servers I manage run regular partitions with ext3 file systems, so LVM snapshots will not work. I found some versioning file systems out there like ext3cow and Tux3. Those look interesting, but I need something I can use on my existing ext3 file systems. I also found the R1Soft Hot Copy command-line utility, but it does not yet support my older 2.4 Linux servers. What are you using to make snapshots on Linux?"
Communications

Best Telephone For Datacenters? 110

Posted by timothy from the repeat-charlie-3-oclock-over dept.
An anonymous reader writes "I've been struggling to find an effective wireless/cordless phone headset for use in high noise environments, such as a datacenter. I'd love to have something like the helicopter pilots or aircraft carrier deckmen wear, but that can hook up to a pots line (or Bluetooth to a workstation with Skype). Has anybody found a solution they like for datacenter applications?"
Botnet

Prosecuting DDoS Attacks? 164

Posted by timothy from the secret-prisons-too-good-for-'em dept.
dptalia writes "We all have heard of major DDoS attacks taking down countries, companies, and organizations. But how many of them are ever prosecuted? And how many prosecutions are even successful? I've done some research and it appears the answer is very few (Well duh!). And those that are successfully prosecuted tend to have teenagers as the instigators. Does this mean DDoS is a fairly safe crime to conduct? Are the repercussions nonexistent? Does anyone have some knowledge an insight into this that I don't have? How would you go about prosecuting a DDoS attacker? What's your experience with getting the responsible parties to justice?"
Education

Visual Network Simulator To Teach Basic Networking? 138

Posted by timothy from the sounds-like-a-good-video-game-too dept.
unteer writes "I am a US Peace Corps volunteer currently teaching a computer technician course at a technical college in Kenya. My students have all completed the Kenyan equivalent of high school and have been accepted into a program where they give a year of nation-building non-military service in return for a technical education. My students' course load includes an introduction to computer networking, and this is where my problem lies. Do any of you know of a visual network simulator that can create an interactive network map that allows me, the instructor, to manipulate various components of a network, including the physical media, routing configuration, and which applications are being used to submit data? An example would be to have a visual of the differences between mail traffic and web traffic, and be able to show how the configuration of a wireless network might be different from a wired network. I know this may seem silly, but visuals of all this are critical to getting ideas across. It doesn't even have to be technically accurate, but rather just pictorially accurate, possibly just labeling the various components correctly. Also, it would be highly preferable if it ran on Linux, as I teach using FOSS only."
Media

Low-Level Format For a USB Flash Drive? 252

Posted by timothy from the back-from-the-living-dead dept.
Luyseyal writes "I unwittingly bought one of these terrible flash cards at Fry's and have managed to nuke two of them, successively. I have a USB flash card reader that will read/write the current one at USB 1.0 speed, but it locks up every Ubuntu and XP machine I've come across in high-speed access mode. I have read that if I low-level format it that it could be fixed, though my current one doesn't support it. My Google-fu must be weak because I cannot seem to find a USB flash reader that specifies that it will do low-level formatting." Can anyone offer advice for resurrecting such drives?
Programming

How To Get a Game-Obsessed Teenager Into Coding? 704

Posted by Soulskill from the apps-and-addons dept.
looseBits writes "I have a friend whose 14-year-old son spends all his time gaming, like any normal teenager. However, my friend would like to find a more productive interest for him and asked me how to get him into coding. When I started coding, it was on the Apple II, and one could quickly write code that was almost as interesting as commercially available software. Now, times have changed and it would probably take years of study if starting from scratch to write something anyone would find mildly interesting. Does anyone have experience in getting their children into programming? How did you keep them interested if the only thing they can do after a week is make the computer count to 10 and dump it on the screen?"
Programming

For Automated Testing, Better Alternatives To DOS Batch Files? 426

Posted by timothy from the run-them-under-wine dept.
An anonymous reader writes "I am working on a project that would allow our customers to test out sending different PCL commands to LAN printers. My initial thought was that a DOS batch file will allow users to select some simple options, send the tests to printers, and even generate a small web page which, when launched from the batch file, will provide email feedback on the tool. This all worked. To spice it up I added some ANSI color commands to the menus, though the implementation of that may prove tricky without resorting to .COM files or forcing the load of the ansi.sys via the command.com shortcut. And this implementation goes against my initial idea that I want the entire thing to be contained in a standalone batch file. My questions are: Is there a better option for this? Are DOS Batch files too 1990s to be taken seriously in 2010? The application needs to (1) be simple (2) be easy to update (3) be able to send PCL commands to LAN-attached printers and (4) allow email feedback. I don't know what other programming language would allow this and be as simple. I tend to think that I have found the best tool for the job but if you have another idea let me know. Call me crazy but I love DOS."
Open Source

Do Build Environments Give Companies an End Run Around the GPL? 374

Posted by timothy from the technical-compliance dept.
Malvineous writes "I have two devices, from two different companies (who shall remain nameless, but both are very large and well-known) which run Linux-based firmware. The companies release all their source code to comply with the GPL, but neither includes a build environment or firmware utilities with the code. This means that if you want to alter the free software on the device, you can't — there is no way to build a firmware image or install it on the devices in question, effectively rendering the source code useless. I have approached the companies directly and while one of them acknowledges that it is not fully GPL-compliant, due to other license restrictions it cannot make the build environment public, and the company does not have the resources to rewrite it. I have approached the FSF but its limited resources are tied up pursuing more blatant violations (where no code at all is being released.) Meanwhile I am stuck with two devices that only work with Internet Explorer, and although I have the skills to rewrite each web interface, I have no way of getting my code running on the devices themselves. Have these companies found a convenient way to use GPL code, whilst preventing their customers from doing the same?"
Science

Scientific R&D At Home? 398

Posted by Soulskill from the check-with-costner dept.
An anonymous reader writes "I'm currently on the cusp of getting myself a new hobby and making some investments. There are a few areas that interest me greatly, from playing with EEG/ECG and trying to put together a DIY sleep lab, to astronomy, etc. I'm somewhat hesitant to get into these fields because (despite the potentially short-lived enjoyment factor) I'm not convinced they are areas that would lend themselves to making new discoveries in the home and with home equipment, which is what I'd really like to do. I've also read quite a number of articles on 'bio hacking,' and the subject seems interesting, but it also seems futile without an expensive lab (not to mention years of experience). What R&D hobbies do Slashdotters have that provide them with opportunities to make interesting discoveries and potentially chart new territory in the home? Do such hobbies exist?"

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