Bible: Jim's guess : 1000 pages 250 words/page 6 characters per word about 1.5 million characters http://www.gutenberg.org/etext/10 http://www.gutenberg.org/dirs/etext90/kjv10.txt is actually 4.445 million Bytes (including header/footer) 56kbps = 56 thousand bits per second = 7 thousand Bytes per second Time to download = (4.5 million Bytes) / (7 thousand Bytes / second) = 643 seconds = just under 11 minutes

That speed is for the text only: the "bits" are combined to make bytes, and each byte is one character.

If you're sending a bible with pictures, then each picture takes up many more bits than the text on one one page. How much space depends on how detailed your pictures are. But a MB (one million Bytes) for one picture isn't unusual. So if you have a picture like that every 10 pages, and your bible is 1000 pages, then you need to send another 100 MB for the pictures ... a lot more than the 1.5 million characters (which is 1.5 MB). So it can easily take you 50 times longer.

A great list is here: http://sectools.org/

Many of these can run from the command line :

Wireshark has a big GUI. Installing it takes a bit of futzing, since the permissions of the network devices may need to be adjusted.

Discuss the various tools, looking at examples from Jim's packet captures.

In the news : Pirate Bay trial next week

http://cs.marlboro.edu/ courses/ spring2009/internet/ notes/ network_tools
last modified Friday February 13 2009 11:36 am EST