Simple Disk Benchmarking in Linux Using ‘dd’
A great way to do a real-world disk test on your linux system is with a program called dd. dd stands for data description and is used for copying data sources. A simple command to do real-world disk write test in linux is: 1dd bs=1M count=512 if=/dev/zero of=test conv=fdatasync This creates a file named ‘test’ [...]
Apache 2.4 Upgrade and the “Invalid Command ‘Order’” Error
The new Apache 2.4 has been released a few weeks ago and I decided to use this version while installing a new server (I compiled it from scratch rather that using an rpm or deb). After using one of my tried and true Apache configuration files, I received this error on start: 12Starting httpd: AH00526: [...]
Big Cable Wants to Encrypt Your Basic Channels – How To Fight For Your Rights
For those not familiar with the current state of digital television, cable providers send signals to your house in a format called QAM. This comes in two flavors, Encrypted and Unencrypted formats. Encryption is used to protect channel content from general viewership so that cable operators can sell these packages and/or individual channels based on [...]
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!
The Fight To Lower Your Cable Bill: Online Live Streaming Television In Jeopardy
First, a bit of history. Cable TV started in the 1970s when TV consumers just outside the range of commercial Over The Air (OTA) broadcasts banded together to create community “Cable” TV systems. An antenna was posted at a high spot on a mountain and pulled in signals that were out of range for households, [...]
Arnova 10 G2 (AKA Phillytablet) Hands On Review
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.
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