WEB server through the eyes of a hacker

Considered the security of Web servers and typical errors committed Web developers when writing scripts in the languages ​​of PHP, ASP and Perl. The measures to hack into real Web sites that have vulnerabilities, including popular ones. In the Theo- In practice, common hacker attacks are considered: DoS, Include, SQL- injections, crossite scripting, bypass authentication, etc. The main techniques are described protection against attacks and recommendations for writing secure code. In the second The publication adds new examples of real errors, as well as a description of Captcha