CSS Juice » The Color Of Design – Important Points About Color Theory

CSS Juice » The Color Of Design – Important Points About Color Theory
Guest post by Simon Ward from Pingable Blog, where he writes about blogging tips, SEO and web design.

Some color combinations work and others look absolutely terrible; this is a subject that anyone interested in design should consider examining. The following article looks at different types of color schemes, how to use them and why they work.

Learning and Mastering the Linux VI / VIM editor

Learning and Mastering the Linux VI / VIM editor
VIM is my preferred text editor for configuring system and writing code at a shell prompt. However many new Linux user finds it difficult to cope with vim. This tutorial provides a good introduction:

The VI editor is a screen-based editor used by many Unix users. The VI editor has powerful features to aid programmers, but many beginning users avoid using VI because the different features overwhelm them. This tutorial is written to help beginning users get accustomed to using the VI editor, but also contains sections relevant to regular users of VI as well. Examples are provided, and the best way to learn is to try these examples, and think of your own examples as well… There’s no better way than to experience things yourself.

macosxhints.com – OS X VPN client and Cisco ASA

macosxhints.com – OS X VPN client and Cisco ASA
Summary: This hint is for Network Engineers who want their firewalls to accept VPN connections from standard OS X L2TP / IPSec clients (should also work for Windows and Linux clients). If you are not a network engineer, but are having trouble connecting to one of these devices, you can also forward this tip to your company’s “firewall person,” so that they can fix it.

Problem: A Cisco ASA or PIX firewall can be a VPN server, but a basic VPN configuration will not allow the default OS X L2TP/IPSec client to connect, even though the Cisco client will. It may not be convenient to distribute the Cisco VPN clients, or your users may not wish to use them.

Set up a Web server cluster in 5 easy steps

Set up a Web server cluster in 5 easy steps
Construct a highly available Apache Web server cluster that spans multiple physical or virtual Linux® servers in 5 easy steps with Linux Virtual Server and Heartbeat v2.

PHP 101: PHP For the Absolute Beginner

PHP 101: PHP For the Absolute Beginner
This area is intended for everyone new to PHP. It opens with a series of informal, entertaining tutorials written by Vikram Vaswani, founder and CEO of Melonfire. These tutorials build on a previously-published 5-part series which has now been updated and extended to embrace PHP 5, making parts of it suitable for those of you who already have worked with PHP 4 in the past.

Official Google Blog: Robots Exclusion Protocol: now with even more flexibility

Official Google Blog: Robots Exclusion Protocol: now with even more flexibility
This is the third and last in my series of blog posts about the Robots Exclusion Protocol (REP). In the first post, I introduced robots.txt and the robots META tags, giving an overview of when to use them. In the second post, I shared some examples of what you can do with the REP. Today, I’ll introduce two new features that we have recently added to the protocol.