Saturday, August 30, 2014

Installing TheThingSystem on Ubuntu 12.04

Installing TheThingSystem on Ubuntu 12.04


This is a guide to set up TheThingSystem and the steward on Ubuntu 12.04.1 LTS Desktop 64-bit.
More information about the TheThingSystem is available here and on GitHub.
This guide is based on the Bootstrapping guide on TheThingSystem's website, available here.
A very big thanks to TheThingSystem team for the time they’ve put into this project.

I started with a fresh install of Ubuntu 12.04.1 LTS Desktop 64-bit using “ubuntu-12.04.1-desktop-amd64.iso” available here.


Once booted into the desktop, open up Terminal:


  1. Update the current packages and install basic tools (I also installed vim as my editor of choice)

sudo apt-get update
sudo apt-get install git-core build-essential curl vim

  1. Configure git and install node

git config --global user.name "Kyle Schien"
git config --global user.email kyleps@gmail.com
git clone https://github.com/joyent/node.git
cd ~/node
git checkout v0.10.22 -b v0.10.22
./configure
make   
sudo make install

  1. Once node is installed, install nodewiki, nvm, and set the default node to v0.10.22

sudo npm install -g nodewiki
git clone git://github.com/creationix/nvm.git ~/.nvm
echo ". ~/.nvm/nvm.sh" >> ~/.bashrc
. ~/.nvm/nvm.sh
nvm alias default v0.10.22

  1. Install node-gyp

git clone https://github.com/TooTallNate/node-gyp.git ~/node-gyp
cd ~/node-gyp
sudo npm install -g node-gyp

  1. Install required packages for steward

sudo apt-get install libpcap-dev libavahi-client-dev libavahi-core7 libnss-mdns avahi-discover libavahi-compat-libdnssd-dev libusb-1.0-0-dev libusb-dev libglib2.0-dev automake libudev-dev libical-dev libreadline-dev libdbus-glib-1-dev libexpat1-dev g++ libssl-dev libbluetooth-dev

  1. Download and install bluez bluetooth packages

cd ~
wget https://www.kernel.org/pub/linux/bluetooth/bluez-4.101.tar.gz
tar -xvf bluez-4.101.tar.xz
cd ~/bluez-4.101
./configure
make
sudo make install

  1. Download steward files from git and install node packages

git clone https://github.com/TheThingSystem/steward.git ~/steward
cd ~/steward/steward
rm -rf ~/steward/steward/node_modules
sudo npm install -l

  • If you don't have a Bluetooth LE adapter, edit discovery/discovery-ble.js and comment out “noble = require('noble');”

vim ~/steward/steward/discovery/discovery-ble.js

Comment out line 31 to read
//noble = require('noble');

  1. Start steward and navigate to the steward interface to set up location and check out detected devices

cd ~/steward/steward
sudo ./run.sh

  • The interface is accessible via web browser at
https://127.0.0.1:8888 or
http://127.0.0.1:8887

References and useful links


If you find this guide useful and want to donate, feel free to send me some cryptocurrency =)


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Friday, December 13, 2013

Changing SYSDATE in Oracle 10g R2 on Windows Server 2003

After migrating our servers from a CA datacenter using PST to a TX datacenter using CST, we noticed an incorrect offset in our application's log times of 2 hours.
We decided to change the time settings within Windows back by 2 hours, at which point, the log times appeared accurate.  We then realized that the log times were correct, but the "creation time" of the log in the database was still off by 2 hours.
To change SYSDATE in Oracle 10g R2 on Windows, you just change the system time on the server.  To be safe, you may want to restart the database, at which point, SYSDATE will return the time you set for the server.