Od3n (dot) Net http://od3n.net The Blog of Salahuddin Hairai Thu, 24 Apr 2014 12:45:57 +0000 en-US hourly 1 https://wordpress.org/?v=4.4.2 Installing Node.js via Package Manager http://od3n.net/installing-node-js-via-package-manager/ Fri, 15 Jun 2012 03:15:15 +0000 http://od3n.net/?p=1074 sudo apt-get install python-software-properties 
sudo apt-add-repository ppa:chris-lea/node.js
sudo apt-get update
sudo apt-get install nodejs npm

It installs current stable Node on the current stable ubuntu.

If you want to compile Node C++ modules:

sudo apt-get install nodejs-dev

Or configure shell script for install node.js using http://apptob.org

]]> List installed gems http://od3n.net/list-installed-gems/ Mon, 30 Apr 2012 16:44:48 +0000 http://od3n.net/?p=1057 How do I know what gems are installed on my machine?

The command “gem list” will list all gems whose name starts with the given string. If no string is provided, all gems are listed.

Example command:

$ gem list act

Command line response:

*** LOCAL GEMS ***

actionmailer (2.2.2)
actionpack (2.2.2)
activerecord (2.2.2)
activeresource (2.2.2)
activesupport (2.2.2)

]]> How to Get Your Facebook Application Access Token http://od3n.net/how-to-get-your-facebook-application-access-token/ Fri, 27 Apr 2012 01:55:26 +0000 http://od3n.net/?p=1052 I recently needed to create some test Facebook users, but ran into a problem when I needed to get my application’s access token. So I ended up searching a bit and experimenting, and it’s simple. Turns out all you need is your application id and secret, which is right there on your application profile page (if your the developer for it). Then you just hit the oauth/authorize endpoint of the graph API, and you get back the access token:


curl "https://graph.facebook.com/oauth/access_token
?grant_type=client_credentials
&client_id=11111111
&client_secret=9999999999"

When You Need An Application Access Token
You need to use a Facebook application access token when you have a process that acts on behalf of the application, rather than on behalf of a particular user. This happens when you access your Facebook Insights data for your app via the graph, and also when you want to create test Facebook users for your app.

]]> Restore Iptables Rules in Ubuntu http://od3n.net/restore-iptables-rules-in-ubuntu/ Sun, 22 Apr 2012 14:54:54 +0000 http://od3n.net/?p=1046
$ iptables-restore < /home/user/working.iptables.rules

]]> Save Iptables Rules in Ubuntu http://od3n.net/save-iptables-rules-in-ubuntu/ Sun, 22 Apr 2012 14:50:56 +0000 http://od3n.net/?p=1041 /home/user/working.iptables.rules]]>
$ iptables-save > /home/user/working.iptables.rules

]]>