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Linux in Schools

Web Application Fingerprinting

One of the first tasks when conducting a web application penetration test is to try to identify the version of the web …

Abusing File Upload

As a penetration tester you might come across with web applications that are containing the file upload functionality.This functionality of course can …

SMTP User Enumeration

SMTP is a service that can be found in most infrastructure penetration tests.This service can help the penetration tester to perform username …

SMTP VRFY Scanner

This is a python script that tries to connect on port 25 and performs automatic username enumeration through the vrfy command by …