docricketts asks: "I've been scoping out some ways to expand the content of a few sites that I manage and have been considering creating versions for PDAs and phones. I've looked around but it looks like AvantGo, at least on PDAs, is the only option for those folks not connected via wireless networks. Now that they have changed their pricing structure, charging $1000 for 'channels' that have one to 100 subscribers, this looks completely inaccessible for content sites that are there to provide info rather than make money. Is AvantGo it, or are there alternatives that I'm not seeing?"

"Zow" asks: "I've been looking into a P2P web-caching scheme and noticed that Squid already has the underpinnings for this using multicast, which seems like a reasonable way to do P2P requests. Reasonable, except for the fact that all my web searches for multicast in general and the MBone in particular mostly turn up sites more than 3 years old. Even the MBone FAQ was pulled because it was so old. MBone.com now belongs to a domain squatter. So, what happened? Did everyone give up on Multicast for all practical purposes? Is everyone who was interested in multicast now working on Internet2? Is it only being used for LAN applications? What caused this loss of interest? Cheap bandwidth? Lack of applications? Lack of network support? Unforeseen technical difficulties? Is it still a viable technology for anything?"

Montreal Geek asks: "I'm currently working on a pet project of mine for which I now find myself with the financial resources to bring to completion: the International Keyboard from Heck. The basic idea (most of the electronics and software for it have already been written) is that the keyboard has a variable layout (and a nice interface to change that layout) with the actual images on the keycaps changing to match what glyph/code-point it will generate. My problem is that I am unsure of which hardware solution to use for the actual, physical keycaps. My original prototype keycap uses a 7x9 array of leds under a lexan surface, but the power requirements of this many leds on a whole keyboard (even when scanning) is a tad prohibitive, and the lexan doesn't feel very good under a finger. Although glowing red keycaps look cool at first, I'm a bit worried that they will end up overly aggressive and annoying in the long run. Can you think of better alternatives? Keep in mind that the design must be resistant to repeated impacts (it is a keyboard after all) and, preferably, have fairly low power consumption so that the device remains practical for laptops." Although a few years from being truly affordable, might OLED technology be appropriate for this project? What other ideas might work out well for such a piece of hardware?

Any Web Loco asks: "Linux From Scratch is in trouble. According to this explanation by Gerard Beekmans (the guy who started the LFS project) Shadowfax, the main LFS server, went offline at the end of October when VA Software ceased providing co-location space. LFS is a seriously geek-worthy project - might some of you Slashdot folk be able to help?"

Demiurg asks: "My company has recently decided to support Linux for it's embedded networking products which means that I'm starting to write Linux device drivers for our hardware. The company was very concerned about GPL issues and consulted a lawyer - who advised us to go for a user-space driver, saying that this is the only safe way to avoid GPL issues. I tried to give them a few examples of companies distributing binary only drivers (NVIDIA and Rational) but was told that these companies do not distribute binary only drivers - they only allow you to download them from a web site (which is not an option for an embedded product). What does Slashdot have to say about the issue? Is writing a user-mode (and hence not very efficient) driver the only way for a company to protect it's intellectual property? Please refrain from giving answers like 'all code should be GPL' - although I personally may agree, such answers will not help me convince management to make the change." Are there any lawyers (or readers with the right legal knowledge) out there that can confirm or contradict this recommendation?

MadCow-ard asks: "Here is one for the Electrical Engineers among us: I have a rack-mount case that I had installed an Intel D845GBV and P4. I had to switch them out with an Asus A7V333 because of incompatibility with my other hardware (which is a long story for another day), but they were functioning fine otherwise. In doing so we found that the new motherboard would not work in the system. We checked everything: multiple motherboards, video, RAM, power supply, cables, you name it. We were getting AOK POST sometimes, others not. It would randomly boot and other times it had no video, or a partial boot. After going nuts (in the field with a couple of clients) we switched out the risers the motherboard sits on. Voila. The risers appear to have grounded the system board. Not the Intel, just the Asus. I spoke with another tech associate who claims to have seen the same issue recently. Now grounding I understand, but it seems that it wasn't the risers specifically. It was their height. We tested two, the bad ones were 2mm smaller. It could be the alloy, but I thought that motherboards would shield the screw points from grounding. It appears to have been a field that built between the case and motherboard due to the smaller risers. It wasn't actual motherboard contact with the case, I checked. Does this make sense? Has anyone else seen this? Is it some sort of capacitance with the case that is generated specifically from the board design and layout?"

FooBarBaz asks: "I'll probably be organizing a quite large (read ~ 300+ people) PGP/GnuPG-Key-Signing-Event. Everyone suspiciously eyeing each others ID and reading fingerprints to everyone else is quite out of the question with such numbers. How would you organize something like that and still be able to select 'I have checked very carefully' when GPG asks?"

eagleyezx asks: "I have a rather large basement with nothing currently sitting in it (I moved all my crud to my garage). Since I am really into space and satellites, I have a satellite all designed. It's kinda based on one of the Amsat designs, but all it really does it beep, just like Sputnik. However, I would need a sterile clean room to build one that would function properly and not go beserk in orbit. I know everyone out there has thought about this at least once? Has anyone ever built a room like this? Any suggestions on equipment?" If you had the drive to do something like this, what would you need to do to be able to build a workshop that would even come close to "clean room" standards. Has anyone ever built an airlock on the cheap?

jukal asks: "I am building a contact database about open source activities and their contacts in large companies. It will be a kind of 'mindmap' positioning each of the big players, listing their key characteristics, their publically stated views on Open Source, and possible connections between the activities of the companies. Could you provide me with a helping hand to get started. Yes, I am doing this for the purposes of Openchallenge but I believe many others would benefit as well. I would like to map the open source world from the 'corporate viewing point' :) Post the details - or anything you got - here, or directly to me [/. profile] And as there will anyway be someone saying 'Go Google It Yourself' - If you think it's Google-able, give it a shot. If this has been already done, then that would be excellent!"

Technoman asks: "I work for a company that for the past four years has restricted individual e-mail messages to 5 meg each. We now have users suggesting that this limit is to small and hinders them in performing their job. I would like to know how others are using size limits, and if not how they deal with large e-mails." As human communication over the net becomes more and more complex, the "acceptable size" of an email message will increase. 10 years ago, if you got an email over 10k, something was seriously amiss; but these days, that is just a flash in the pan. Many people rely on email, not FTP to transfer files, and things like a few family portraits can easily exceed several megs in size, so drawing the line for all users may not be as easy as you think, depending on your users and your network. Put simply, if you were the administrator of an e-mail server, what would you set the maximum size of an incoming email message to be, and what would be the reasoning behind said limit?

An anonymous reader asks: "I was setting up a new system the other day and after trying to find 30,000 different device drivers, it hit me: What's wrong with the idea of having basic drivers for common OSes in a flash ROM embedded within devices, so that when we plug the device in, the driver is then downloaded to the machine in question? You could always update it or override the process, but it would sure save us a lot of scrambling around for disks. Am I the only one who has thought of this?"

cornjones asks: "Does anybody know anything about biometrics and user rights? I am supposed to give a handscan to my building for gym access. I don't really have a problem w/ this persay but I want some sort of assurance as to what the scans will be used for (and that they will be deleted fully when I leave). It may be a bit paranoid right now but these scans don't change over your life and the trend is towards these scans being used for more and more applications. I talked to the VP and he said he would sign a privacy doc if I could find one. I did a little searching and I haven't found anything good. Does anybody know of any groups or papers on protecting the use of biometric identifying information?"

yppasswd asks: "I'm looking for a (cheap) solution for filesystem sharing between two linux servers and, since the target is just redundancy, I've come to the following idea: two SCSI controllers, one per machine, with different IDs (say 7 and 6) sharing the same disk. Only one of them would mount the disk, the other is just ready in case of failure. I've googled this around, and I've found many different opinions (Yes, no, perhaps, don't do it or it'll explode,...) but nobody saying 'Ok, I've tried this and here is what happened...'. Suggestions are welcome, but keep in mind that many other solutions (Fiber Channel, SSA, NFS mounts, various network filesystems) were already rejected because they were either too expensive, unreliable or not supported under Linux."

aldheorte writes "After installing Red Hat Linux 8.0, I discovered some minor bugs. Some of these are with software actively maintained by Red Hat (e.g. redhat-config-date), but some are not (e.g. gaim). Although it is possible to enter bugs for any package at Red Hat Bugzilla, some of these packages have zero bugs, which probably indicates this is not a preferred method of receiving bugs for that project. In fact, I've found this to be the case for for several project. I find no listed bugs for Red Hat's Bugzilla and a whole database of bugs at another site, such as SourceForge. There are many distributions and channels for open source projects to reach the end user, so how do users, especially non-technical ones, effectively submit bug reports to the right database? How do open source projects make it easier for users to submit bug reports and consolidate the bugs in a single database?" Update: 11/01 11pm EDT by C :Don't know why this was sitting under the "HP" topic, so I've changed it to something more appropriate. Sorry if this has resulted in any confusion.

Mercutio asks: "OK, I've been handed the responsibility of acting like a grown-up and changing from my normal day-to-day IT job to actually making decisions involving someone else's money. Specifically, I've been asked to deal with all the variables associated with purchasing/leasing computer equipment (desktops, laptops, printers etc) and I'm feeling a bit out of my league. Anyone have any tips for dealing with leasing or financing equipment, companies to avoid working with, or mistakes made in past leasing/purchasing arrangements? Any company that was really great to work with? Any help is of course appreciated. Thanks."

avante asks: "For reasons ranging from political to financial, we have convinced an organization who wants to use our software to use only Open Source and Free Software, including GNU/Linux as their operating system. Because they will need support, we decided to go with Dell, since we had heard that they distribute a free operating system with their computers. First, I found out that they only sell non-Microsoft OS's on their 'server' models, which cost several hundred dollars more than comparable 'desktop' configurations. Since our clients are a cash strapped not-for profit group, we decided to purpose a low price 'desktop' as a server, and suffer the expense of the superfluous OS. When the sales rep. at Dell was told of our decision, he became upset and began demanding explanations as to why we wanted to use a 'desktop' as a server, what version of GNU/Linux we had intended to use and other things that were not any of Dell's concern. This is not the first time this has happened to us. Has anyone else experienced this sort of hostility when you try to deviate from their pre-ordained sales path and use Open Source/Free Software?"

Dark Neuron asks: "I work with a PDA software development group, and have been interested in the changes in the Palm Operating System (from 4.01 to 5.0). There are 2 new devices available, the Sony Clie PEG-NX70V and the Palm Tungsten T. The Tungsten has built in Bluetooth, and the Clie has the advantage of an accessory Wireless LAN (WiFi) card. There are some Secure Digital 802.11b cards in development, that could be used by the Tungsten (the power drain of which I do not know) but none available yet but they may be out by 2003. Does anyone have experience with either new device yet, or knowledge of Secure Didital WiFi cards in development? Any feedback on the New OS 5.0 yet?"

Tamor writes "As an avid PC games player I'm locked into the perpetual hardware upgrade cycle like everyone else, but one thing really irks me. While other hardware has come down in price, graphics card pricing has spiralled beyond belief. Not only are graphics cards usually the single most expensive item in a gaming PC, they don't seem to be subject to the usual market forces. Instead of new generation cards forcing down the price of old cards, the old cards are simply phased out, and the likes of nVidia have a range wide enough to keep the high-end cards at the same prices for the forseeable future.

Why is this? Why does a top of the range graphics card cost so much more than an entire PS2 or X-Box system? Is it the lack of competition in the market following the demise of 3DFX or are there other forces at work. What do slashdotters thing about this pricing?"

nanogeek asks: "I've worked for a few years in the computing infrastructure/support department of a large university. In my time here, there have been organizational movements and/or strikes by many segments of the employee and student population (librarians walking out, grad-students seeking a fair wage for TA responsibilities, etc). However, none of this fervor for collective bargaining and fair treatment by the upitty-ups seems to have touched our department; and this seems to be rather endemic to geekjobs. In a year when commerce was brought to a halt on the west coast over a dispute about the change in the use of technology in the shipping industry, I have seen my department and my co-workers displaced, disrespected, displeased, and occasionally dismissed over the same kinds of technological shifts (in both my case and that of the longshoremen, the changes require retraining and reshuffling of workload, manpower, and payment). Common complaints have been that we were never consulted before these changes were enacted, and I wonder if a powerful union could be the answer. Is there room for such labor organization amongst geeks? Does the mutability of the technology involved preclude the kind of stasis brought about by unionization? Does the status of the economy currently make it so that any attempt at such broad-based organization could be circumvented by black-listing and purging members from the rolls? Or could a powerful geekunion bring about a sea-change after which a modicum of parity between the bosses and the drones could be established?"

Orm asks: "As we all know, Linux version 3.0 (or 2.6) is about to get a feature freeze, meaning that it is bug hunting time. And as we saw on the kernel-summit, some people are afraid that not enough people are willing to try this new kernel, to help get those bugs smashed. My idea to get more people into this hunting, is to write a good paper on how to do it. Not a standard 'how to locate and fix bugs' but a document targeted towards people using 2.4.x today, who will want to help out. So what things should one need to know when testing a new kernel?"