8 GB DDR3 RAM v.s. 4 x 2048 MB DDRII PC667 RAM What is the main difference between 8 and "4 x 2048" They both equal the same amount of RAM right? And what is DDR3 and DDRII?

I'd like to set up a series of local development servers using the same IP address and different domain names, although I'm not sure about how to set it all up. I created the following domains server1.something.com, server2.something.com - all these domains have DNS records for the same IP addre...

What's the difference between a rate-limiting network scheduler vs. STFQ network scheduler? Any helpful input is appreciated.

For a actual project I must setup a high-available storage server who can store and publish (http) 150 million photos in 7 sizes means total 1050 million files. For every photo we need total 200 KB space to store them in all 7 sizes in total 28 TB. Actually I have two servers available (2x E562...

In http ( over tcp) there is a header which called keep "alive" I dont understand how a connection can be open in tcp if all packets come from different source ( router decision - over the internet)

I am currently running Wordpress on a linode 512 VPS. The setup is as follows: nginx, php-fpm and wordpress. The blog seems to be getting slower loads and I've recently lost the ability to install plugins or upload photos. Would it be a better solution to simply host the blog on wordpress.com o...

I receive these emails (on my cPanel Linux Cent OS 5 Server) every day and haven't a clue what they mean or what to do; Drive Warning: /dev/root (/) is 81% full Drive Critical: /dev/vg00/var (/var) is 92% full How can I sort this easily? I have full root and SSH access

I own the admin account of my PC running, Windows XP Pro edition. There is another Non-admin account in this system. I want to limit the administrative capabilities of this account. That is, to prevent that user from accessing registry, group policy, user accounts panel etc. Is there anyway to d...

I'm panicking! :) I'm hosted on GoDaddy (I know, I know...), economy web hosting. Any help would be wonderful. The site is pretty slow at the moment (an image rating site).

I just got my iPhone, and am on an app-downloading spree. Help me build my list of apps! I'm marking this question as fun so that we can also include apps that aren't necessarily useful for IT people, but that IT people might enjoy. However, if it is more of a "fun" app, please mark your answe...