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Local dns-cache for faster browsing

Aug 152010

A DNS server resolves domain names into IP addresses. So when you request “google.com” for example, the DNS server finds out the address for the domain, and sends your request the right way.

You can run a DNS cache on your computer. This will speed up the process of looking up domain names when browsing. The difference is about 30-60 ms for me. Multiply that difference by the number of websites you visit a day for an approximate estimate of the speed improvement. Of course, all this would be worth it if it weren’t for the fact that setting this up is way too easy.

The following instructions are for someone with a cable (broadband) internet connection, where the computer gets it’s local IP address using DHCP from the router in your house/office:

Read it all at here

Sudo for beginners

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Aug 112010

root / sudo
If you are reading this you are likely aware that the administrator on Linux/Unix systems is referred to as root. The root account is the account on which all system processes run and should be the only account that can write to the main filesystem.

Because most of us started our computing lives out using Microsoft Windows there has always been a notion that it is better to be the administrator of the system. Unfortunately this is one of the major causes of insecurity in computing and opens up your system to instability. As most Linux users will tell you, only log in as root to perform maintenance on your system and never log in to a graphical or desktop session using root.

grep for beginners

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Aug 102010

grep is a very useful terminal command used to search for text within files, the default is to print all lines that contain the given string.

Examples:

grep word file -> print all the lines of the file containing the word.
cat file1 | grep keyword
Unix command | grep keyword

WordPress + Twitter + Qtranslate =?

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Aug 092010

I have followed the same steps described in my article on how to publish new WordPress posts on my Facebook Page via twitter, and following the publication of the “Info” page I found this on Twitter:

 <!--:it-->Info<!--:--><!--:en-->Info<!--:--> http://is.gd/e98rO #fb

Everything worked … but, I forgot qTranslate was installed to manage the two languages of the blog.

I was already thinking that this would have cost me a lot of time when I found this very useful post “Tuning Tools for Twitter to Work With Multilingual WordPress Blogs using qTranslate.”

So looking at the code, I found in Twitcategory the corresponding piece of code change:

twitcategory.php Line 303

$proto = str_replace( "[title]", $post->post_title, $proto );

With (changes in red)

$proto = str_replace( "[title]", __($post->post_title), $proto );

This will activate the function gettext, which will publish the title in the language selected as default (in my case Italian).

From WordPress to Facebook Page

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Aug 072010

While I was configuring WordPress, I realized that it would be very handy to have a plugin that will automatically publish a new post on the Facebook fan page dedicated to the site.

After some research, I realized that it is full of WordPress plugins for Facebook, but nothing that applied to my case. I then decided to use Twitter as a “bounce site” and publish on my FP my tweets. This can easily be achieved because WordPress has many plugins that automatically publish posts on Twitter.

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