Category Archives: Ubuntu

Published:
February 8, 2010 – 9:05 pm
Author:
By Dave

UbunTOS – Ubuntu 9.10 + TinyOS 2.x VirtualBox Image 9

This is my admittedly minor but I hope useful contribution to the TinyOS development community. TinyOS is an Operating System and development framework for Wireless Sensor Networks and other platforms which has a small footprint and is very energy conscious.
The TinyOS source code is available for free online for many operating systems, however it takes a [...]

Categories: Programs, Software, Ubuntu

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Published:
December 23, 2009 – 9:26 pm
Author:
By Dave

Tweaking TCP for Fast (100mbps+) Connections and Transfers on Linux 3

We recently did some speed testing on a few of the servers on our network, and we were not receiving the speeds expected considering they were sitting on a physical 100mbps ethernet port. The servers were indeed on physical 100mbps connection, however wget (TCP/IP, HTTP Port 80) download tests showed only a max of about 1.5MB/sec (note the 8bit/byte conversion, so this translates to about 12mbits).

Categories: Linux, Software, System Administration, Ubuntu

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Published:
October 30, 2009 – 6:40 am
Author:
By Dave

How To Reset Windows XP, Vista, Windows 7 Passwords with Ubuntu 9.10 Live Image and a USB Drive 2

I put this together for a project in a class I am taking, and thought it would be handy for others as well. The goal is to access a Windows filesystem and reset the password for a user, for example if someone forgot the Administrator password or the account is locked out from too many [...]

Categories: Software, System Administration, Tech, Ubuntu, Windows

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Published:
May 21, 2009 – 7:22 pm
Author:
By Dave

Ubuntu Server in Place Network Upgrade From 8.10 to 9.04 1

It is easy to do an in-place upgrade of Ubuntu Server from 8.10 ‘Intrepid Ibex‘ to 9.04 ‘Jaunty Jackalope‘. You can do this remotely over ssh or whatever you use to control your server. Best practices say to make sure to backup your server before doing the upgrade. I’ve done several servers this way with [...]

Categories: Linux, Shell, System Administration, Ubuntu

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Published:
May 6, 2009 – 11:10 pm
Author:
By Dave

Easy Search and Replace in Multiple Files on Linux Command Line 8

I recently came across a typo that existed in a bunch of html files on my web server. I thought it should be easy enough to change, but since it was in a number of files, editing it by hand would be time consuming. Fortunately, there is an easy, one liner command to replace the [...]

Categories: CentOS, Other Code, Shell, System Administration, Ubuntu

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