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Cliff Bell - Cloud Confusion: Too Many Choices, Too Little Vision. Invent Your Own Computer Games with Python - Learn how to program with a free ebook programming tutorial. Chapter 1 Read online: Chapter 1 - Installing Python Videos: Chapter 2 Read online: Chapter 2 - The Interactive Shell Chapter 3 Read online: Chapter 3 - Strings Download source: hello.py Copy source to clipboard: Use the online diff tool to find typos in your code: hello.py Chapter 4 Read online: Chapter 4 - Guess the Number Download source: guess.py Use the online diff tool to find typos in your code: guess.py Chapter 5 Read online: Chapter 5 - Jokes Download source: jokes.py Use the online diff tool to find typos in your code: jokes.py Chapter 6 Read online: Chapter 6 - Dragon Realm Download source: dragon.py Use the online diff tool to find typos in your code: dragon.py Chapter 7 Read online: Chapter 7 - Using the Debugger Chapter 8 Read online: Chapter 8 - Flow Charts Chapter 9 Read online: Chapter 9 - Hangman Download source: hangman.py Use the online diff tool to find typos in your code: hangman.py Chapter 10 Read online: Chapter 10 - Tic Tac Toe Download source: tictactoe.py Chapter 11 Download source: bagels.py.

Easy PHP Blackhole Trap with WHOIS Lookup for Bad Bots. One of my favorite security measures here at Perishable Press is the site’s virtual Blackhole trap for bad bots. The concept is simple: include a hidden link to a robots.txt-forbidden directory somewhere on your pages. Bots that ignore or disobey your robots rules will crawl the link and fall into the trap, which then performs a WHOIS Lookup and records the event in the blackhole data file.

Once added to the blacklist data file, bad bots immediately are denied access to your site. I call it the “one-strike” rule: bots have one chance to follow the robots.txt protocol, check the site’s robots.txt file, and obey its directives. Failure to comply results in immediate banishment. In five easy steps, you can set up your own Blackhole to trap bad bots and protect your site from evil scripts, bandwidth thieves, content scrapers, spammers, and other malicious behavior. The Blackhole is built with PHP, and uses a bit of .htaccess to protect the blackhole directory. Installation Overview. Android For The Enterprise? Robert Poe - Will Skype Ever Become a Mainstream Business Tool? Skype Ltd. has been trying to sell itself as a serious business tool since early 2006.

It's an ambitious strategy, and it represents a big jump from the company's roots as a pioneer of free Internet calling for individuals. It has also proven to be a much harder sell than expected. At the beginning of its campaign, Skype targeted small and midsized businesses (SMBs). Its first step was to provide corporate billing and administration capabilities, so that companies wouldn't have to reimburse employees individually for their use of Skype for cut-rate outbound calling. The next big step was interoperability with Asterisk and other open-source IP PBX platforms, another emerging SMB money-saver. In early 2009 it added Skype for SIP, which made its service accessible through any certified SIP-capable IP PBX.

Skype's most recent move came in mid-May, when it introduced an upgraded Web-based administration interface for enterprise IT managers, dubbed Skype Manager. Or will it? IT Starts to Get Its Head in the Cloud.