A man flying in a hot air balloon suddenly realizes he’s lost. He reduces height and spots a man down below. He lowers the balloon further and shouts to get directions, “Excuse me, can you tell me where I am?” The man below says: “Yes, you’re in a hot air balloon, hovering 30 feet above [...]
Author Archives: Carl
Mexican Fisherman
An American investment banker was at the pier of a small coastal Mexican village when a small boat with just one fisherman docked. Inside the small boat were several large yellowfin tuna. The American complimented the Mexican on the quality of his fish and asked how long it took to catch them. The Mexican replied, [...]
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Arduino network support sounder
This project needs properly documenting, but in short it’s a Diecimila with a network module a 6V buzzer and tri-colour LED connected to PWM which provides an audible and visible alert upon the receipt of specific new emails. I run Ubuntu and Evolution mail on a wireless laptop which has a filter configured to pipe [...]
CentOS 5.3 Smokeping 2.4.2 Install (quick)
Install the latest smokeping (without distributed polling) on a virgin Centos 5.3 minimal box… It’s probably the best (free) tool for monitoring network latency at a glance. Examples: Pipe Ten Derby and Pipe Ten Sheffield.
Posted in code snippets, geek, servers & tech Tagged centos 5.3, Latency, Linux, Network, smokeping yum install 11 Comments
CentOS 5.3 Zabbix 1.6.5 Install (quick)
A quick reference for a from-scratch Zabbix install on CentOS 5.3. We’ve used Zabbix for the past 3 or 4 years and just implementing 1.6.5 across multiple Xen nodes for funky distributed monitoring.
Posted in code snippets, geek, servers & tech 4 Comments
http.sh
I’ve faffed with this one and poorly hacked some jquery and facebook connect examples along with trusty ol’ PHP on the front-end, on the back-end is a nice c scheduler engine which seems to be performing extremely well during testing. The index and FAQ explains what it’s all about.
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Just Feckin/Friggin/Fucking Google It
JFGIT.com was just a quick domain registration, modification of the google home page and a bit of mod_rewrite. It’s intended for the ‘education’ of people too lazy to use the wonderful search tool called Google. How many MB are there in a GB? duh, http://jfgit.com/how+many+MB+in+a+GB/ or http://jfgit.com/clean/how+many+MB+in+a+GB/ if you prefer.
Where do petrol price sites get their data?
After an IRC conversation about GPS, we randomly got onto a discussion about finding the cheapest petrol prices and where those services get the data. There were a few ideas:
Ardunio Visible Distance Detector
I’ve had the Arduino Mini Pro for about 2 months now, but as I forgot to order/have some sort of USB FTDI converter I’ve not been able to play with it. As part of another planned project I intend to use the SRF02 ultrasonic sensor to detect and alert upon someone getting too close to [...]
Posted in geek, servers & tech, projects, videos Tagged Arduino, distance, ftdi, leds, mini pro, pwm, srf02, tri-colour, ultrasonic 1 Comment
Ardunio Visible Distance Detector v1.0 snippet
/* This code receives input from the SRF02 ultrasonic and maps the values to RGB outputs to a tri-colour LED. */
