Web scanning

https://cirt.net/Nikto2

http://www.binarytides.com/scan-website-vulnerabilities-uniscan-tutorial/

http://www.tecmint.com/nikto-a-web-application-vulnerability-and-cgi-scanner-for-web-servers/

http://stackoverflow.com/questions/26069049/perl-most-effective-way-for-scanning-for-a-particular-web-server-http-banner

http://null-byte.wonderhowto.com/how-to/hack-like-pro-perl-scripting-for-aspiring-hacker-part-2-building-port-scanner-0154502/