1.1.Funcionamiento of the Web servers 2 1.2.Common Vulnerabilities 1.2.1 IIS 1.2.1.1 Unicode 1.2.1.1 ... 1.2.2 Apache 1.2.2.1 Longslash 1.2.2.1... 1.3 Scripting Vulnerabilitis 1.3.1 CGI 1.3.2 PHP 1.3.2 ASP 1.3.3 Cross-Site Scripting 3.Server hardening 3.1.Cierre of ports 9 3.2.Ocultando the Unicode vulnerability 9 4.Entornos of test 11 4.1.1.OSSTMM 12