Category: Trick
Postfix – Host or domain name not found
After installing Postfix on my new Ubuntu server and try sending an email with: There is no new mail both in my Inbox or Spam. A quick check on the log file. I got (Host or domain name not found. Name service error for name=company.com type=MX: Host not found, try again). If this happened you … More Postfix – Host or domain name not found
pathogen.vim
Having a great code editor is crucial. As a software developer you are probably spending all day watching and coding with it. My all time favorite source code editor is Vim. I like its fast navigation and rich of available plugins that make it so easy when it comes to work with open-source technologies such … More pathogen.vim
Big Data and the Future of Healthcare
Designed and published by: InsuranceQuotes.org
Color palette knockout custom binding
In this post I use a wonderful color picker by @lakek. HTML: Javascript: Reference: KnockoutJs custom binding Enjoy!
Mysql2::Error: Unknown table engine ‘InnoDB’
One of my project using mysql as backend happened cause Error: Unknown table engine ‘InnoDB’. Try to login to mysql directly: InnoDB is not found! In this case just stop mysql server and kill mysql process, then start mysql. Done.
Create thumbnail with RMagick
Create thumbnail 24 by 24
Virtualbox 4.0 USB devices grayed out
USB devices grayed out due to permission Here, I assume that you already installed VirtualBox Extension Packs 1. Usually VirtualBox will add “vboxusers” group for you, but if not 2. Change /dev/vboxdrv group to vboxusers 3. Add read/write permission for group to /dev/vboxdrv 4. Add your user to vboxusers group 5. Logout and login again … More Virtualbox 4.0 USB devices grayed out
Install libxml-ruby in Ubuntu 10.10
Installing libxml-ruby with rubygems Building native extensions. This could take a while… ERROR: Error installing libxml-ruby: ERROR: Failed to build gem native extension. /usr/bin/ruby1.8 extconf.rb checking for socket() in -lsocket… no checking for gethostbyname() in -lnsl… yes checking for atan() in -lm… no checking for atan() in -lm… yes checking for inflate() in -lz… no … More Install libxml-ruby in Ubuntu 10.10