Dave, I know how to check for free disk space on Windows XP, but how do I check for the amount of free disk space available on a machine running Linux (CentOS, Fedora, Red Hat, Ubuntu, etc.)?...

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I have a Virtual Private Server or a dedicated server running Linux, but I'm not sure which version of Linux (Fedora, CentOS, Debian, etc.) the server is running. How do I find out?...

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Now that I have over a hundred friends on Facebook, I'm kind of drowning in the never-ending flow of live updates from them all. A social media guru pal of mine told me that I should be using facebook lists, but I've no idea what they are. Dave, help! What's a Facebook list and how do I create one?...

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[This is the first of a series of Killzone 2 walkthrus we'll be publishing, all with videos and all written by gamer Alex Juel. If you have questions about the game, please don't hesitate to post them here and Alex will do his best to answer them. Stay tuned for subsequent parts, too!] Here's the game's storyline (courtesy of Wikipedia), if you want to start out with a basic clue about what's going on: Killzone...

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I am a big fan of both your blog and problogger, and both of you seem to be fans of the Chitika ad network, in addition to various other ways that you make money. Darren says that it's a big revenue stream for him, and you've written that minor tweaks in how you have things set up on your blog have resulted in some major bucks coming your way too. I'm in! But, how do...

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I got a great gift from my folks, an Apple iTunes gift card. Nice. And I have an iPod. What I don't have is any clue how to redeem an iTunes gift card. Help!...

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I am a law student and have completely switched over to a laptop for all of my notes. My laptop is bluetooth and I use a bluetooth mouse. My question is do you know of any bluetooth pen devices? Sometimes it would be helpful to draw things by hand, and the regular mouse doesn't cut it. I want a pen-like device that can act as mouse. Hopefully it would be small, portable, and bluetooth....

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I have been an avid reader for some time but I have a question. The kids all have computers now (we all have macs) and I was wondering if there was a way to check up on them every once in a while. We all have macs running OS X. and I have read the oriely 'control' your mac from afar. but I was wondering if there was a cool way to login screenshot and...

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I've been starting to delve into peer to peer (p2p) networking and am trying to figure out what the difference is between Limewire, Kazaa, BitTorrent and similar. Can you explain how they work?...

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I've been doing some research on long-term stock pricing trends and need to find data on publicly traded companies. Any clues on where I can find this sort of information back for the last decade or so?...

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What is the reason people buy stocks from a company. I know the obvious reason is to make money, but there is more. So just "why do people buy stocks"? thank you....

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In the past 3 days I've received dozens of returned e-mails that appear to be sent by my domain name but that are not valid email addresses. For example I received a returned e-mail today that was "sent" from nvsnx@mydomainname.com but there is no user "nvsnx". Where did this come from, how do I stop it, and what risk am I at from this happening?...

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I have 2 Ubuntu Dapper machines at home. One is going to a college dorm with may daughter in a couple weeks. I can get her desktop on my computer through VNC here at home. It's using port 5900. Is there a way to know whether I'll be able to reach her machine through this port when she's at college? I have no idea how they manage their network - nor do I care...

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I've been running the Python-based "mailman" mailing list management program for quite a while with good results, but all of a sudden when I try to start it up I get the error "Site list is missing: mailman" and it won't start. What the heck? How do I fix this?...

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I have a couple of clients who are on the same Verio/NTT Virtual Private Server (VPS) system, and I want to have some simple script to check their disk usage. It's not a simple "du" sort of task, however, because of the peculiarities of the VPS environment. Any ideas?...

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Help! For some reason when I try to use "ssh" to connect to my server from my Mac, it fails and is saying that I might be a victim of a "DNS Spoof"? What's going on, and how do I fix the problem?...

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Dave, we have a server security problem in Mac OSX, it is being remotely accessed by a former sys admin who has been stealing our business and the webfiles that go with them. Could you work with me to help lock down this machine? He set the machine up, it is one of several we run. As a result, he knows the root level password. I am finding when we try to change the MySQL...

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I am trying to write a shell script for automated ssh. vairable user and passwd have initialized correctly, but when I use the following it still prompting me for the password. ssh -l $user cisdevapp1 $passwd uptime exit I have also tried the following ssh -l $user cisdevapp1 $passwd uptime exit EOF and no luck. Please help?...

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Dave, I've been using ssh like a good Internet citizen to connect to my remote server, but for security reasons the ISP has disabled root login from ssh on every server. Problem is, I really need to be able to log in as root occasionally. How do I re-enable it?...

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Dave, can I use America Online (AOL) as my Internet Service Provider, but actually use a different web browser -- Firefox -- rather than the browser that's included with the AOL software suite? Also, how about email programs?...

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