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Gary Hoffman in PortUnreachable

Oct 11, 2017

Understanding IP Fragmentation

Fragmentation occurs when an IP datagram traverses a network which has a maximum transmission unit (MTU)…

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Gary Hoffman in PortUnreachable

Oct 19, 2017

CTF walkthrough : VulnHub “RickdiculouslyEasy”

This blog will be a run through of the beginner level CTF challenge…

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Gary Hoffman in PortUnreachable

Oct 11, 2017

Self-Study SANS SEC503 GCIA

So, I’ve recently passed the GIAC Intrusion Analyst (GCIA) exam after 7 months of hard self-study as I was…

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Gary Hoffman in PortUnreachable

Oct 11, 2017

VLAN Hopping Vulnerability

VLAN hopping is a vulnerability that can be leveraged by an attacker to gain access to networked resources on…

Gary Hoffman in PortUnreachable

Oct 11, 2017

Exploiting Cisco HSRP

HSRP provides redundancy for IP networks ensuring that traffic can transparently recover from first hop failures…

Gary Hoffman in PortUnreachable

Oct 11, 2017

My first CTF challenge — VulnHub Necromancer

This blog will be a run through of my first ever CTF challenge which was the…

Gary Hoffman in PortUnreachable

May 7, 2018

Automated OSINT with Scumblr

We all know that open source intelligence gathering can be quite time consuming, but the information found is…

Gary Hoffman in PortUnreachable

Oct 11, 2017

Malicious IP Fragmentation

If you read my previous blog article on IP Fragmentation, you should be fully versed on what it is and how it…

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PortUnreachable

Personal blog page of Gary Hoffman, opinions are my own and not the views of my employer.

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