Simple Disk Benchmarking in Linux Using 'dd'

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A great way to do a real-world disk test on your linux system…

Apache 2.4 Upgrade and the "Invalid Command 'Order'" Error

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The new Apache 2.4 has been released a few weeks ago and I decided…

Big Cable Wants to Encrypt Your Basic Channels - How To Fight For Your Rights

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For those not familiar with the current state of digital television,…

The Easy CIDR Cheatsheet

Even though I've been working with Classless Inter-Domain Routing (henceforth known as CIDR) for years now, I always need a bit up a help remember how many addresses are in each block and how many sub-blocks fit into larger blocks. I have the following printed out for easy reference, and here it is for your geeky enjoyment: 
CIDR        Total number    Network             Description:
Notation:   of addresses:   Mask:
--------------------------------------------------------------
/0          4,294,967,296   0.0.0.0             Every Address
/1          2,147,483,648   128.0.0.0           128 /8 nets
/2          1,073,741,824   192.0.0.0           64 /8 nets
/3          536,870,912     224.0.0.0           32 /8 nets
/4          268,435,456     240.0.0.0           16 /8 nets
/5          134,217,728     248.0.0.0           8 /8 nets
/6          67,108,864      252.0.0.0           4 /8 nets
/7          33,554,432      254.0.0.0           2 /8 nets
/8          16,777,214      255.0.0.0           1 /8 net (Class A)
--------------------------------------------------------------
/9          8,388,608       255.128.0.0         128 /16 nets
/10         4,194,304       255.192.0.0         64 /16 nets
/11         2,097,152       255.224.0.0         32 /16 nets
/12         1,048,576       255.240.0.0         16 /16 nets
/13         524,288         255.248.0.0         8 /16 nets
/14         262,144         255.252.0.0         4 /16 nets
/15         131.072         255.254.0.0         2 /16 nets
/16         65,536          255.255.0.0         1 /16 (Class B)
--------------------------------------------------------------
/17         32,768          255.255.128.0       128 /24 nets
/19         16,384          255.255.192.0       64 /24 nets
/19         8,192           255.255.224.0       32 /24 nets
/20         4,096           255.255.240.0       16 /24 nets
/21         2,048           255.255.248.0       8 /24 nets
/22         1,024           255.255.252.0       4 /24 nets
/23         512             255.255.254.0       2 /24 nets
/24         256             255.255.255.0       1 /24 (Class C)
--------------------------------------------------------------
/25         128             255.255.255.128     Half of a /24
/26         64              255.255.255.192     Fourth of a /24
/27         32              255.255.255.224     Eighth of a /24
/28         16              255.255.255.240     1/16th of a /24
/29         8               255.255.255.248     5 Usable addresses
/30         4               255.255.255.252     1 Usable address
/31         2               255.255.255.254     Unusable
/32         1               255.255.255.255     Single host
--------------------------------------------------------------
Reserved Space:
	0.0.0.0/8	
	127.0.0.0/8
	192.0.2.0/24
	10.0.0.0/8
	172.16.0.0/12
	192.168.0.0/16
	169.254.0.0/16

Xbox 360 Windows Media Center Extender Demo

After I ditched cable TV, I used both Snapstream's BeyondTV and SageTV to sate my and my family's television needs. After almost 2 years we ended up turning cable back on. Win one for the cable company! But that did not end my search for the perfect home television system. Our cable box, well, works; but the hard drive is limited and you have to pay 15.99/mo for it. For the full video demo... continue to the full post!

Arnova 10 G2 (AKA Phillytablet) Hands On Review

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Recently picked up a "Phillytablet" from the local newspaper publishing group, Philly Media Network (PMN), publishers of the Philadelphia Inquirer, Daily News, and a few other smaller news publications. Read on to view my review of the actual hardware (The Arnova/Archos 10 G2 Tablet) and of the Philly Media Network applications that you are subscribed to.