Hardware

Cooling a Digital Camera? 52

Posted by Cliff from the cryogenic-photogenic dept.
thusson asks: "I work at a lab doing intrinsic signal imaging of cat and mouse visual cortex (brains). We are using a Dalsa 1M60P camera, and we want to cool it about 30-50 degrees C to improve picture quality by reducing noise. Does anyone have any suggestions about how to do this? So far, heat sinks have helped but only by a few degrees. I figure the overclocking community is a good place for novel ideas."
Security

Rapid Authentication Systems? 48

Posted by Cliff from the secure-yet-fast dept.
Barrington Johnson asks: "I am an emergency physician, and am looking for a solution for authentication which is compatible with rapid logons and logoffs. We have several web-based terminals into which we put information. The web application gives a real-time representation of the emergency department, so it is important that it is kept up to date. We have an opportunity to re-design our system, and I know that if I make the authentication process too difficult e.g. username+password, doctors will store up their data entry, and do it all in one go, removing the real-time usefulness of the display. At what level (application/browser/system) should authentication occur, and what method would be best?" Might a smartcard-based authentication system work well in this situation?
Spam

Is A Catch-All Address Worth The Spam? 579

Posted by timothy from the so-much-trouble-in-the-world dept.
wildzeke writes "I plan on switching Internet providers this summer to get a faster speed. Since losing an email account is the biggest pain when switching providers, I decided to pay the extra money to have email for the domain I registered. One of the options provided is to make one of your email accounts a catch-all account. In other words, any email sent to this domain with out a valid user name, will be dumped in the catch-all account. The question I have, is this a good idea or not? On one hand, it may catch important email such as admin, or postmaster or simply mis-typed user name. On the other hand, the catch-all will open the flood gates to spam who will send to [all user names in the world]@domain.com."
Businesses

Pro Photographers that Will Sell the Copyright? 351

Posted by Cliff from the retaining-the-rights-to-your-own-image dept.
Shook asks: "Today, my fiancee and I talked to a wedding photographer known for being technologically savvy. (He uses fully digital equipment, the couple can make changes to the album online before printing, relatives can order prints of specific pictures online). I knew going into this that professional photographers generally retain the copyright to the images and all requests for reprints must go through the photographer. During our consultation, I asked him if it would be an option to obtain the copyright from him and get CDs of the original high-resolution images. He said that he has never sold a copyright, was not sure what he would want to charge, but he said it would 'be expensive.' In the end, the photographer is too expensive for our budget ($2000-$4500), so I didn't discuss it further. With the ongoing extension of copyright time limits, when does it even expire? What if my grandchildren want copies of my pictures? Do they need to track down his corporate (or actual) descendant and get permission? In addition, there is the classic issue, what if I can't find him in 20 years?"
Spam

New Tricks from Browser Hijackers? 104

Posted by Cliff from the adapt-or-(preferrably)-die dept.
Fortunato_NC asks: "I'm the IT manager for a small business that delivers its service via a browser-based application, and we take around two dozen to three dozen tech support calls from users each day. Many have something to do with pop-up ads making using our product nearly impossible, which is odd, since we don't have any advertising on our website. Of course, it's spyware causing the pop-ups, and we recommend using a product like Ad-aware to take care of the issue. However, not everyone gets the message. Today I was on a client's computer using WebEx helping them remove yet another 'browser helper'. The uninstaller for this program consisted of running no fewer than four separate programs, each of which forced closed the Internet Explorer windows, killing the WebEx session, and making it very difficult to service an already upset client ('What do you mean I have to join the meeting AGAIN?'). It seems as if this product anticipated the need to have someone remotely help the user remove it and went out of its way to make that task nearly impossible. Has anyone else on Slashdott encountered spyware or malware specifically designed to make life miserable for *remote* support techs? What other nasty tactics are spyware authors using that you've noticed?"
Software

Open Source Software for Peace Corps Volunteer? 14

Posted by Cliff from the lending-a-helping-hand dept.
yemanja forwards along a request for a friend: "Justin Wiley, a young friend of mine is running an 'open source lab' in the Phillipines as a Peace Corps volunteer. He'd like to ask this question of Slashdot: 'Rhe NGO I am working with primarily supports governmental bodies. We are trying to convert them over to Open Source software, and have done so in some areas like putting Mandrake, Open Office, and Mozilla on all the desktops of the national economic development authority. However, it would be useful to have a body of applications providing more specific gov't. purposes. I'm looking for Open Source packages that can do things useful for the government, like inventory control, customer management, auditing, content-management, project management/monitoring, security, and so on. If I can make some of the kids into experts in these areas, it will be easier to get them a job in government, and easier to work in Open Source software if there are people trained in using and operating it. If you run into anything like that, let me know!' I know that cities like Munich have converted to Open Source, but I wonder if anyone on Slashdot has experience with this sort of question and can provide Justin with some specific suggestions that might be useful."
Unix

Implementing Better Task Scheduling for Servers? 30

Posted by Cliff from the complex-cron-jobs dept.
trifakir asks: "We are running some quite expensive SunFire servers with Solaris 8. In the 'crontabs' of these hosts we have scheduled maybe some hundred odd jobs, which are constrained by multiple factors: dependencies on other jobs, time constrains, CPU and memory usage, network bandwidth, and so on. Obviously this imposes a CSP. On the other hand the number of these jobs, each one of them can take from minutes to hours is growing and we are now experiencing performance problems given the limited resources we have. Of course we have opened the bag-of-tricks with our best *ad-hoc* solutions, using mostly Open Source software, to turn our system into an event-based and less dependent on the scheduling expertise of the admins. At certain point we were considering using AutoSys and I was looking for a grid-like scheduler like OpenPBS, both of which were discarded for various reasons. I am curious, how you guys, would solve this problem, which seems very trivial for many environments. Both advice about theory (scheduling) and practice will help us and any other readers who may be tackling this difficult problem."
Software

Top Ten Linux Configuration Tools? 651

Posted by Cliff from the what-no-admin-should-be-without dept.
jman251 asks: "I am presenting at a conference in September on a couple of Linux-centric topics. One of these is a collection of tips, tricks, and tools for configuring, securing, and maintaining a Linux-based server. I have a short list of tools I use, but would like some community input on the subject. What tools do you use that make your admin responsibilities easier or more automated on the Linux platform?"
The Internet

Unix Shell Accounts? 115

Posted by Cliff from the an-endangered-species dept.
mcovey asks: "Unix shell accounts used to be easy to find, with quality applications installed and free web space. Nowadays the only free ones left are either not accepting new accounts, have limited applications or send you on a wild goose chase to register. Does anyone know any free or low-cost shell accounts that include compilers, IRC, background processes, FTP, a decent editor and an email app (preferably pine, since I have a config file already on my IMAP server)?"
Businesses

Companies that Still Don't Ship to Canada? 142

Posted by Cliff from the one-big-(divided)-continent dept.
mstich asks: "I'm curious as to why some companies make it so difficult to ship to Canada (from the U.S.A.). I'm only about 200km (124mi) from Detroit, so distance surely can't be the problem. Companies like NewEgg state that they won't ship to Canada, even though they will ship to Alaska (albeit, at an inflated cost) and some, like Crucial, do ship to Canada but they won't extend their 'free second day shipping'. Are there really that many underlying costs that show up when crossing the border? Is this just another money grabber? Does NAFTA fit into all of this, somehow?"
Apple

Linux Distributions for Powerbooks? 113

Posted by Cliff from the penguins-and-apples dept.
sol2k asks: "I just got myself a G4 Powerbook 12' and I am still amazed at the thing. Mac OS X is beatiful and sometimes even too intuitive for someone crossing from the Windows world. I had some nice experiences with Linux on Intel machines but would love to try out a Linux on the Powerbook and make use of the great hardware. Here's a simple question: What are my options? I know about Yellow Dog (old and doesn't seemt to be updated often), Debian/PPC (a bit too much time to set up than what I have available) and Mandrake (9.1 - that's really old). What Linux adventures have you had on your Mac?"
Hardware

Prioritizing Computer Replacements? 46

Posted by Cliff from the swapping-ordinality dept.
cuzality asks: "The public library I work for is (hopefully) going to get some money in the coming months to replace some of our computers. Since we can't replace all of them at the same time, we need to decide which machines to replace first. We have begun working on a survey instrument to help us accomplish this, but since this is the first time we are replacing computers (most were bought in 1999), this is also the first time we have tried to put together a survey for this purpose. What kind of criteria have you used to prioritize replacement of computers? Examples of surveys you have used would also be very helpful..."
Games

What's Your Favorite Open Source Game? 149

Posted by Cliff from the share-your-opinions dept.
Carlos Camacho asks: "The Inkubator Project is a website for creating free, Open Source Mac games through a collaboration between experienced and inexperienced developers. As webmaster, I am interested in adding to the seven games we have listed in our link section. So, I would like to ask Slashdot readers for their picks of the best Open Source games. The Inkubator Project focuses on Mac developers, however any game project that uses cross-platform technologies is fine."

PHP 5 Released; PHP Compiler, Too 524

Posted by timothy from the pronounced-like-it's-spelled dept.
TheTomcat writes "After years of anticipation, PHP 5 was released today. This release represents a milestone in the evolution of PHP. It sports the new Zend Engine II, a completely re-worked object model, and many many new features. Check it and the changelog out." In other PHP news, remote_bob writes "There have been many attempts, like BinaryPHP and PASM, but finally there is a complete compiler for PHP. The Roadsend compiler produces standalone, native executables, and supports the entire PHP language (but not all extensions). It uses Bigloo Scheme to do its job, a variant of Lisp, the language that Paul Graham writes about. Benchmarks say that performance is pretty good. Is this another sign that dynamic languages are the future?"

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