10 Tools To Add Some Spice To Your UNIX Shell Scripts

Posted on in Categories Linux, Shell scripting, UNIX last updated April 19, 2010

There are some misconceptions that shell scripts are only for a CLI environment. You can easily use various tools to write GUI and/or network (socket) scripts under KDE or Gnome desktops. Shell scripts can make use of some of the GUI widget (menus, warning boxs, progress bars etc). You can always control the final output, cursor position on screen, various output effects, and so on. With the following tools you can build powerful, interactive, user friendly UNIX / Linux bash shell scripts.

Ksplice: Upgrade / Patch Your Linux Kernel Without Reboots

Posted on in Categories Linux last updated April 9, 2010

Generally, all Linux distributions needs a scheduled reboot once to stay up to date with important kernel security updates. RHN (or other distro vendors) provides Linux kernel security updates. You can apply kernel updates using yum command or apt-get command line options. After each upgrade you need to reboot the server. Ksplice service allows you to skip reboot step and apply hotfixes to kernel without rebooting the server. In this post, I will cover a quick installation of Ksplice for RHEL 5.x and try to find out if service is worth every penny.

HowTo: Configure WordPress To Use A Content Delivery Network (CDN)

Posted on in Categories Apache, lighttpd, Networking last updated April 2, 2010

Research shows that if your web pages take longer than 5 seconds to load, you lose 50% of your viewers and sales. You can speed up your wordpress blog by using a CDN to display content to users faster and more efficiently. You can distributes common files or content such as css, javascript, uploaded images, videos and much more through a CDN, which serves the content from the closest cdn edge server to the end-user. In this tutorial, I will explains how to configure Wordpress, Apache/Lighttpd webserver, Bind dns server to use a CDN to distribute your common files such as css, js, user uploaded files and lighten load on your web server.