RobertB-DC asks: "Twice a week, for the past several months, I receive a call on my cell phone, from a 'Restricted' number. It's always the same: 'Please hold for an important non solicitation message.' It then tells me to call 1-800-842-0640 for further instructions. When I call (from a CID-blocked work phone), all I can get from them is the company name: NCO. They won't tell me more about their company unless I tell who I am. Verizon says they can't block the caller. Short of exposing my own identity to someone I don't know, how can I get rid of these annoying calls?" Are there cell phone carriers who are progressive enough to offer call blocking services of some kind?

eugene ts wong asks: "Our company is planning on taking care of its own email, by setting up our own server. I've been given the task of researching what is out there. So far, I've got my heart set on an IMAP server that we can install on Gentoo. Unfortunately, email isn't our forte, and I really have no idea of where to start. I've made some google searches, browsed around on the IMAP site, and also found this email. According to the mutt documentation, Cyrus and Courier are the best choices." What IMAP servers have you used, and which ones would you recommend?

Monty asks: "I'm currently exploring my options and I've been wondering, is it worthwhile to seek education overseas--specifically the EU? Edsgar Dijkstra was of the opinion, though controversial, that American and European CS programs were fundamentally different (see his later writings in the E.W. Dijkstra Archives). What makes the EU interesting, in that light, is that it seems to have more openly embraced things like functional programming. So, if I want to focus my study on something of a more functional nature, are schools in the EU a better choice? What are the implications of returning to North America for employment with a foreign degree? Do they have to be accredited as proof of validity or are they usually recognized by themselves here in the US?"

StudMuffin asks: "I am teaching a Master's level Introductory Java Programming class, at the University of Michigan in January, and am on the hunt for a solid Java textbook. This class is aimed at grad students (who obviously have a bachelors degree, so they are assumed to be able to think on their own) with no programming experience. Specifically, I would like to ground them in good Object Oriented principles, solid program design techniques, and finally in the actual syntax of Java. I would rather think of this as a 'How to program well' class that happens to use Java as the language over a 'Java class' that happens to cover programming. I would like to stay away from the applet heavy books that I tend to find, focusing instead on the topics above. Any ideas?"

blate asks: "Consumer-grade Firewall/NAT devices, such as those from Linksys, Netgear, D-Link, etc., have become very popular as more and more users get broadband connections. I've been using a Linksys router at home for several years and have never had any security problems. But how secure are these devices, really? The firewall guru's I know argue that a NAT really doesn't give you much beyond security-by-obscurity. What are your experiences with this (have you ever been comprimized through such a device)? Would I be better off with a Linux/ipchains firewall?"

Anonymous Coward asks: "DATs are currently the standard for recording legal concerts like Phish and the Grateful Dead. However, they're absurdly expensive even on eBay and are no longer being developed actively by any companies. Are there any alternatives that are more cost effective than DATs (Sony has a D100 out for 700 USD) and maintain the same quality? (DATs can sample up to 48kHz)."

Chris Curtin writes "My daughters' school is having a Career Education Day next month and I'd like to do a presentation. My kids are in Kindergarten and Third Grade, but I could present to Fifth Graders, as well. How do I explain what a programmer does to the kids? I was thinking about building a web page for the little ones, maybe show the older ones some visual logic with VB, where I change a basic program and run it from my laptop, showing keyboard and mouse inputs, music, and so forth. I have VB6, Java, HTML and Windows 2k on the laptop I'll be bringing. Any thoughts on how to 'wow' the little ones and make the older ones want to learn more about programming?" If you were going to make a computer presentation to a class full of children, what kind of things would you talk about?

soren42 asks: "I've been a casualty of war in the latest round of SoBig battles. Apparently, some of my user's e-mail addresses were in the address books of infected Outlook clients, and spam is now being circulated appearing to come from my domain. I'm getting almost 50 'Message Undeliverable' errors per hour, and I think I've been blacklisted from AOL and Earthlink. I know there are plenty of you are having this problem - how are you dealing with it?" Email viruses, once urban legends, have now become a real threat to certain people. What active measures can users (both vulnerable and non-vulnerable to such things) take to lower the propagation rate of such viruses across the internet?

Chris Frank asks: "With the RIAA stepping up its pressure on internet sharers, what is the legal status of people behind apartment routers? With no logging of who is moving what who can the RIAA prosecute when it tracks a shared file back to that specific shared internet account? I would imagine that many Slashdot readers are behind routers that hold all of their internal IPs private to the outside world. Is the bill payer responsible for all of the users of that router? How can a person be held accountable for the actions of others, especially when there is no proof of who did what?"

Saqib Ali asks: "I m sure most of you have heard that Connectix, the makers of Virtual PC/Server, have been acquired by Microsoft. Based on the technology acquired, MS has developed a new product called Microsoft Virtual Server, using which a Windows Server 2003 based server can run multiple operating systems concurrently. I am doing a preliminary analysis of using MS Virtual Server vs. running VMware ESX Server 2.0 on Clustered Linux Environment. Both solutions offer a way of running multiple OSes in a virtual environment using the same underlying OS (Windows 2003 or Linux). Of course, running VMware on Linux, offers the stability, scalability, and reliability of Linux, and also prevents a business form being locked into one single vendor. However running Microsoft Virtual Server does have some merits from a business perspective (vendor viability, reduced licensing costs etc). Any thoughts on merits/benefits/downside of using either of the technology stacks?"

nuggetman asks: "This year we're starting an in-high-school TV network. What we would like to do is be able to broadcast from anywhere in the building using our wireless 802.11b network. In doing some tests at home, I discovered 802.11b has enough bandwidth to allow me to send live video at VHS quality (320x240 29.97fps) w/ FM quality audio when using Windows Media encoder on the sending end, and Windows Media Player at full screen on the receiving end. When applied in school, the receiving computer would simply output the full screen display to a TV signal. Are there any other free (as beer) solutions that would let us do this, other than WMP?"