With the help of internal on-site penetration testing the businesses gets sense of surety that all the required tasks are being performed safely on Internet. This assessment has a strong similarity in terms of the methodology used in assessment of external testing, although in this scenario engagement will take place within the WAN at physical zone or attached DMZ or at logical management zone. In order to attach to internal network in depth knowledge in various areas is needed. The knowledge areas are not restricted to Policy, Architecture, implementation and Auditing but it included multiple business units and operating systems. At The Red Hats we possess the skill set having all the relevant knowledge areas. The Internal network penetration test at The Red Hats possess a combination of internal network port and vulnerability scans, onsite visits, best practices use across the industry and on-site meetings which facilitates in discussing the key findings and for addressing all the queries.