Washing Machines: Costs and Saving Money

I've always been a huge proponent of washing machines as a way to save money. Unfortunately, many apartments don't have laundry rooms, so lower-income families have to wash at a laundromat.

Water Filter Choices: What type to get?

There are basically five types of drinking water filters to get slightly cleaner tasting drinking water.

RIP Slaptech Framework

Slaptech framework was a PHP 4 based framework that never got released into the public, that we built to do projects.

Warning: Part of this document are obsolete for larger disks. A short report on a failure.

I recently had a RAID5 array fail, and learned something about backup: it's not just about the data, but also the recovery time.

Almost Done with Refinishing (part of) my Mother's Kitchen

I'm almost done refinishing my mother's kitchen. This blog details some of the work, some problems, and some of the solutions.

Cleaning

Control Ingress (incoming) bandwidth... with Bittorrent and others

I wanted to download a file, but we just got this awesome high speed fiber optic internet...

RAID 5 Reliability is Worse than RAID 1 Reliability, and it gets worse...

It was just kind of intuitive to me that adding more disks to a RAID 5 array would increase the opportunities for failure, but it never occurred to me that going from 3 disks to 4 disks nearly doubled your chance of failure, but it does. It also didn't occur to me that RAID 1 is significantly more reliable than RAID 5.

Ubuntu Server Installation Notes for Partitioning a 2 Disk System to Boot From a RAID 1 Device

This note explains how to install Ubuntu Linux Server on a computer with two hard disks, with RAID 1, so it boots from the array. The entire installation, including partitioning and RAID administration, is done through the installer, and doesn't really require any access to the commands. (This is a work in progress, and we don't have screenshots yet.)

Got Semi-Scammed by Discount SSL Vendor Comodo with "PositiveSSL CA 2"

(Just to be fair, I think the SSL cert business is a scam, so there.)

Supermicro Server Keeps Booting after 5 Minutes

I got this snazzy used Supermicro server, and after I set it up to run SSH, and I started to configure it, it started to reboot every five minutes.

Parity in Computer Data, What is It?

Parity, in computer data, is a bit that's set or unset so the total number of bits is either even or odd. It's an extra bit, and it's added as a check on the data. So, if the parity is not correct, you assume the data is bad.

It's often used in data communications, and was a very visible feature during the old modem and BBS days.

Even parity means that a bit is added so the total number of "1" bits is even. Odd parity means that a bit is added so the total number of "1" bits is odd. So this:

1010100

With even parity, is: 10101001
With odd parity is: 10101000

EasyCZ Button Switchboard

This is a simple (or simplistic) Linux GTK+ application that shows a button panel or "switchboard". Each button executes a script.

Windows: Migrate Files to a New Server, Windows 2008 R2 and Windows 2003

This is probably not the "best practice" but it's what I'm doing lately to migrate files between servers, desktops, etc. MS has a tool that uses DFS to migrate data and maintain UNC paths, but, whenever I see systems that map paths to physical data on Windows, I worry.

ZyXEL ZyWALL USG-50 - Backing Up the Configuration

The usg-50 has a pretty flexible system for saving configurations. From the Maintenance:File Manager:Configuration File screen, you manage your configuration files.

HP V1910 - Backing Up the Configuration

The V1910 switch requires that all configurations be saved, or they'll be lost after a power cycle. I'm sure all users learn this pretty quickly after spending time configuring a switch, and assuming that it was saved into the switch's nvram. They unplug the switch, move it, and then discover all their work is lost.

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