How to enable single sign-in for social accounts for question2answer? These servers are required: Google, Facebook, Twitter, OpenID. This site moved from Loginza to Question2Answer Open Login which works like a charm. I use the Loginza and it works very well. For Q2A, SLonoed wrote a nice plugin for loginza. How to use it: Download…
How to install php on Apache on Fedora? The basic support (basic PHP support, no caching, etc.) should be enough. First, install Apache2 (httpd): # yum install httpd Then, enable php support: # yum install php Remember to restart httpd after you install php: # service httpd restart
How to list a page’s child pages in WordPress? wp_list_pages can list the sub pages of a page. Check this code (also include the HTML that wraps it as an example): <h3>Pages under <?php the_title(); ?></h3> <div class=”entry”> <ul> <?php global $id; wp_list_pages(“title_li=&child_of=$id&show_date=modified &date_format=$date_format”); ?> </ul> </div>
Any free server images? 24 Free Data Center Photos from fatcow.com 24 Free Data Center Photos: http://www.fatcow.com/data-center-photos From Wikimedia commons: Multiple servers: http://commons.wikimedia.org/wiki/File:Server-multiple.svg Server: http://commons.wikimedia.org/wiki/File:Server.svg Yellow server: http://commons.wikimedia.org/wiki/File:Server-yellow.svg Green server: http://commons.wikimedia.org/wiki/File:Server-green.svg More from clker.com: Web Virtualization Server clip art: http://www.clker.com/clipart-1826.html Small Case Web Mail Server clip art: http://www.clker.com/clipart-1902.html Inside our data centers from Google —…
As a WordPress user, you may have noticed that the default HTML editor lacks some of the features that you need for your content. Fortunately, you can add custom buttons to the WordPress HTML editor to make your content creation experience more efficient and productive. In this post, we will explore how to add custom…
The built-in canonical URL function since WordPress 2.9 is great. But under some situation, it is not needed. For example, all the Mingle Forum threads’ canonical URL is set to the URL of the page that contains the [mingleforum] shortcode, which, of course, is wrong. How to diabled it? We can disabled WordPress’s Built-in Canonical…
How to convert a ps file to a pdf file that is available for publish (embedded fonts, etc)? Convert the file.ps ps file to file.pdf: $ ps2pdf -dPDFSETTINGS=/printer file.ps file.pdf</pre> Embedding Fonts in PDFs with pdflatex by Jeffrey P. Bigham: http://www.manticmoo.com/articles/jeff/programming/latex/embedding-fonts-with-pdflatex.php
After the post Fetching RSS Feed and Outputing Feed Items as HTML in PHP was originally published, there are some updates such as adding a simple RSS feed caching mechanism and supporting scanning content parts of the feed items for images. Recently, Webucator makes a great tutorial video on introducing the RSS to HTML PHP…
You may already well know “Linux” and may also use the “operating system based on the Linux kernel” directly or indirectly (you are indirectly using it now as this site is hosted on Linux). But how should we name the OS based on Linux? You may know there is GNU/Linux naming controversy. Different people have…
It is useful to show the feed items directly on the webpage as HTML content. In this ost, we will show one single PHP function that fetches an RSS feed and outputs the feed items as HTML elements in the web page. One example to fetch an RSS feed and output the itmes as HTML…
In Extending a Mounted Ext4 File System on LVM in Linux, we introduced how to extend a mounted ext4 filesystem on LVM Logical volume by adding a new physical volume. It is also common to shrink an ext4 file system as to spare some disk space. In this post, I will discuss how to shrink…
WordPress can be very fast after some effort on performance optimization with the help from its plenty of plugins. Possible ways include using cache to cut down the number of database queries, improves HTML/JavaScript/CSS code, and optimizing PHP’s performance with opcode cache. In this post, we introduce how to speed up WordPress with OPcache, page…
It is nice to set up some photo gallery on the web and share with friends and family. Some online services are good and convenient. But if you want to host it on your own domain and control them by yourself, there are also many scripts available. Usually, we want the script simple to use…
John Ousterhout is a professor of Deparment of Computer Science from Stanford University. One recent project he is working on is the RAMCloud, a “new class of storage, based entirely in DRAM, that is 2-3 orders of magnitude faster than existing storage systems”. He posts his “Favorite Sayings” on his homepage. These sayings are precious…
More and more users are browsing the Internet using a mobile device. It is preferred to provide good experience for these users. One method to service a mobile version of the page to a user with a mobile device. This tutorial introduces how to add mobile skin support for MediaWiki. Skin for mobile devices I…
MediaWiki is the wiki-engine that runs Wikipedia. In this tutorial, we introduce how to configure search engine friendly URLs in MediaWiki. ==Search Engine Friendly URLs== Default MediaWiki URLs look like www.example.com/w/index.php?title=TITLE which is a little ugly. To make it more search engine friendly, we will change it to SEO-friendly URLs like www.example.com/w/TITLE. ==Enabling Search Engine…
I am always wondering how to display different Widgets in WordPress depending on the page/post/category etc. I ever tried some plugins that is for specific purpose. However, they are not flexible enough for all my needs. For example, I want a widget that contains AdSense ad not display on certain posts that I selected and…
If you want to have a wordpress blog for FREE co.cc + x10hosting is the best choice. I will introduce both in this post. I will briefly introduce how to set up a wordpress blog like my blog. The overall that I paid for this blog is only $0.89. I can say that it is…
About RGBlite Theme RGBlite Theme is a simple and light-weight theme for WordPress. RGBlite Theme provides a green-red-blue mixed style, bright view and fast rendering experience to the users. RGBlite Theme passes W3C XHTML 1.0 and W3C CSS level 3 validation. This theme works well on WordPress 2.9.x and WordPress 3.0. RGBlite theme is among…
We can speed up the site with compression while save bandwidth at the same time. As most of the modern browsers support gzip encoding, we can set it up to let the users enjoy faster speed. The Apache mod_deflate is easy to set up and standard. It compress the content on the fly. We can…