Use noindex Meta Tag in WordPress to Prevent Search Engine Indexing Categories, Tags and Archives

WordPress has the content duplication problem which may confuse search engines. Duplicate content won’t hurt you, unless it is spammy or keyword stuffing, as said by Matt Cutts, and Google may just ignore the duplicate content. However, instead of letting the search engines decide which pages of the duplicate ones are important, we may only […]

Using “META” Tag in HMTL HEAD to Redirect Pages

It is quite simple to redirect pages using the “meta” tag in HTML head, I just give the example to redirect the page to after 1 second. <html> <head> <meta http-equiv=”Refresh” content=”1; url=”> </head> <body> This page is redirected to: <a href=””></a>.<br /> </body> </html>

Improving Font Rendering for Fedora Using Bytecode Interpreter

Fedora’s font rendering isn’t very nice. At least on my laptop with Fedora 12. Bytecode Interpreter (BCI for short) is disabled by default because of patent issues. As the TrueType bytecode patents have expired. We may enable BCI in Fedora now. TrueType announced that BCI is enabled by default from 2.4. Fedora 12’s TrueType version […]

Linux Cluster Solutions

Solutions to Linux cluster construction and management such as unified account management, NFS home directory, network configurations are summarised in this post. The post is keeping updating while new solutions is added to this site. Account and storage management ∞ Unified Linux Login and Home Directory Using OpenLDAP and NFS/automount Backup Linux Home Directory Using […]

Configuring Mouse Cursor Style for GTK Applications in KDE Desktop

Update on Jan. 7, 2012: The package for the gtk application style setting on KDE 4.7 is kcm-gtk. The command to install this package is: “# yum install kcm-gtk”. One annoying thing when using KDE desktop is that the theme and style of GTK applications differ from KDE’s. The gtk-qt-engine can let us select the […]

An I/O Performance Comparison Between loopback Backed and blktap Backed Xen File-backed VBD

I have done some I/O performance benchmark test of Xen DomU. For easier management, some of our DomU VMs are using file-backed VBDs. Previously, our VMs are using Loopback-mounted file-backed VBDs. But blktap-based support are recommended by Xen community. Before considering changing from loopback based VBD to blktap based VBD, I have done this performance […]