Passwordless Authentication with SSH

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When doing things like secure automated backups via ssh and/or rsync over ssh, you will need to setup passwordless authentication so that you are not prompted to enter the password for the ssh connection. This is very easy to do on your Dedicated Server and is broken into two parts.

Client Side
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mkdir ~/.ssh
chmod 700 ~/.ssh
cd ~/.ssh
ssh-keygen -t rsa (just hit enter for all questions)
scp ~/.ssh/id_rsa.pub username@remote.server.com:~/

Server Side
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mkdir ~/.ssh
chmod 700 ~/.ssh
cat id_rsa.pub >> .ssh/authorized_keys
chmod 644 .ssh/authorized_keys
exit

The Real Middle Earth

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http://books.google.com/books?id=BXRTMwCKDAcC&lpg=PA89&ots=WLbbxfXA5y

Some of this book is available free on google books, its an interesting read if you like history and middle earth. Lots of cool linguistic names and Anglo Saxon words.

The older Anglo Saxon names sound a lot like elvish names. We all know Tolkien was a great linguist who was well learned in the older Anglo Saxon texts and its neat to see the examples where he could have gotten some of his inspiration from.

Middle Earth Coin Weights

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1). Gather some data based on historic coins.
Used to gather approximate weight and value of gold, silver, bronze, copper and tin coins around the year 1700: http://www.coins-of-the-uk.co.uk/coins.html#size
Coin weights:
1 gold = 8g
1 silver = 6g
1 bronze = 9.4g
1 copper = 9.3g
1 tin = 4.7g
Coin conversions:
20 silver = 1 gold
12 bronze = 1 silver
2 copper = 1 bronze
4 tin = 1 copper


2). Gather worth of coins to compare with Middle Earth.
Historical Prices: In 13th century England, beer was between .14 and .28 grams of silver per liter.
The MERP Second Edition main book has beer at approximately 4 tin pieces per liter.  4 tin pieces in the above defined coin system converts to about .24 grams of silver.  Close enough to guestimate MERP coin weights.


3). Adjust for MERP denominations and decimalization:
Convert all coins to equal value (1 gold) to get the overall weight.
1 gold = 8g
20 silver = 1 gold = 120g
240 bronze = 1 gold = 2256g
480 copper = 1 gold = 4464g
1920 tin = 1 gold = 9024g
Adjusted for base 10 denominations to get the weight per coin.
1 gold = 8g
1 silver = 12g
1 bronze = 22.5g
1 copper = 4g
1 tin = 0.9g
Middle Earth Coin Coversion
1 gold = 1 gold
10 silver = 1 gold
10 bronze = 1 silver
10 copper = 1 bronze
10 tin = 1 copper
Example 1:
56 gold = 1 lb
37 silver = 1 lb
19 bronze = 1 lb
112 copper = 1 lb
497 tin = 1 lb
Example 2:
10 gold = 10 gold = 0.18 lbs
100 silver = 10 gold = 2.67 lbs
1000 bronze = 10 gold = 50 lbs
10000 copper = 10 gold = 89 lbs
100000 tin = 10 gold = 201 lbs


4). The Middle Earth Rules Second Edition indicates to use 1/4 ounce per coin for weight (approx 7g).
10 gold = 10 gold = 0.16 lbs
100 silver = 10 gold = 1.56 lbs
1000 bronze = 10 gold = 15.63 lbs
10000 copper = 10 gold = 156.3 lbs
100000 tin = 10 gold = 1563 lbs

VW GTI Soundproofing

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This document is a collection of my notes and various links to other articles that outline how to sound dampen a 2008 VW GTI. I am not responsible if you damage your vehicle following these instructions and don’t claim to be a VW tech nor do I claim that this is the “best” way to sound dampen a vehicle. However, I do think that this is a good start for anyone who wants to do this modification and I am happy with the overall outcome (see: Part 7: Results).

VW-GTI-Soundproofing