Convert wav to m4a with GNU/Linux

There are probably a gazillion ways to do this. I use FAAC, Freeware Advanced Audio Coder, to do this job. It works very well: <br /> faac originalfile.wav -o outputfile.m4a<br />

July 27, 2009 · 1 min · 31 words · kenno

FIXED: extconf.rb:8:in `require&#8217;: no such file to load &#8212; mkmf (LoadError)

While reading Linux Journal Issue 181 today, I stumbled upon a section explaining about running Ruby on Rails on Apache using an Apache module called Phusion Passenger, also known as mod_rails. To install Passenger, I followed the instruction provided in the magazine: sudo gem install passenger Unxpectedly, I got the following error: ``Building native extensions. This could take a while… ERROR: Error installing passenger: ERROR: Failed to build gem native extension....

July 25, 2009 · 1 min · 167 words · kenno

Pidgin &#8211; old version of libpurple and unknown protocol

Aaaahhh… I fixed the Pidgin problem with Unknow protocol just 5 minutes after the previous post was made. I’m going to write how I found out the problem and how it has been fixed. If you’re interested, keep reading. In the previous post, I mentioned that I would removed the Pidgin package completely including its configuration file (# apt-get –purge remove pidgin.) I did and followed by re-installation of Pidgin, unfortunately, it didn’t fix anything....

July 10, 2009 · 2 min · 255 words · kenno

Pidgin &#8211; Protocol Unknown (FIXED)

Update: The problem has been fixed. Please see the above post. A few weeks ago, Pidgin could not connect to Yahoo messenger server because Yahoo was changing its protocols. At the time, the Pidgin was at version 2.5.5. Then that Yahoo connection problem has been fixed in version 2.5.7 and newer of Pidgin. Anyway, Pidgin is acting up again. This time I’m not sure what is going on, and it didn’t seem other people are experiecing the same problem – Protocol Unknown for all types of accounts....

July 10, 2009 · 1 min · 209 words · kenno

Remove Universal Access Preference icon from Gnome panel

One of the advantages of using GNU/Linux operating system is that you hardly have to restart it. I have Debian on my laptop and it’s been running for months, until last night. It crashed and froze. Anyway, that’s not the main point this post was written. After restarting, I saw this new icon in the Gnome top panel (the third icon from the right): Well, for the start, I don’t know what it is and I don’t think I will have a need for it either....

June 23, 2009 · 1 min · 213 words · kenno

Pidgin 2.5.5 &#8211; cannot connect to Yahoo messenger

I just noticed the abnormality with Pidgin 2.5.5 (running on Debian) these few days — I couldn’t connect my Yahoo messenger account at all. According to the discussion of Bug #389278 it appears that Yahoo was trying to change its protocol. A quick way to have Pidgin connecting to Yahoo messenger server again is to change the Pager server setting for the Yahoo account in Pidgin. To do this, from Pidgin:...

June 20, 2009 · 1 min · 158 words · kenno

Debian JSON for Ruby

I tried to install JSON for Ruby via RubyGem, # gem install json and I got the following error message: Building native extensions. This could take a while...<br /> ERROR: Error installing json:<br /> ERROR: Failed to build gem native extension. <br /> /usr/bin/ruby1.8 extconf.rb install json<br /> extconf.rb:1:in `require': no such file to load -- mkmf (LoadError)<br /> from extconf.rb:1<br /> <br /> Gem files will remain installed in /usr/lib/ruby/gems/1....

May 24, 2009 · 1 min · 120 words · kenno

apache2: Could not reliably determine the server’s fully qualified domain name, using 127.0.0.1 for ServerName

Everytime I start apache2 (# apache2ctl start) this message is dispalyed: apache2: Could not reliably determine the server’s fully qualified domain name, using 127.0.0.1 for ServerName Well, the site is still running despite the above notification. To fix it, we need to edit the /etc/apache2/httpd.conf or /etc/apache2.conf and add the following line: ServerName nameofserver Now, restart the apache server (# apache2ctrl restart) and should no loger see the previous message.

February 10, 2009 · 1 min · 70 words · kenno

HOWTO add user to sudoers list in Debian/Ubuntu

You need to have root access to do that. So the first step to become root with the following command: ken@debian:~$ su<br /> Password:<br /> debian:/home/ken# visudo<br /> Now you can add a username to the list. For example: <br /> ken ALL=(ALL) ALL<br /> Save the file to complete the process. Credit: Ubuntu Forum

January 27, 2009 · 1 min · 55 words · kenno

Eterm doesn&#8217;t display “ or ”

Eterm doesn’t display the fancy “ or ” on my Debian. It is not a big problem, but it’s very annoying when it doesn’t properly display these symbols used in some programs such as aptitude. I wanted to fix it, but didn’t realize it there was a fix. After two years or using it, I tried to find the solution again, and I found it. Just add the this code to the ....

May 8, 2008 · 1 min · 102 words · kenno