My Cybersecurity Journal

Sharing my Cybersecurity notes and personal experience with Cisco Firepower, Palo Alto Networks, Juniper Networks SRX and Fortinet FortiGate Next-Generation Firewalls.

Saturday, January 12, 2019

DHCP Starvation Attack and MAC Address Spoofing

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It was a rainy holiday but I still enjoyed my stay in the Philippines last December 2018. My family visited the Mind Museum in BGC Taguig,...

Tuesday, January 1, 2019

Cisco ASA FirePOWER Traffic Redirection, Security Zone and Network Object via ASDM

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Below is the normal traffic flow in a Cisco ASA Firewall with FirePOWER module. You can check the ASA Access Rules under Configuration...

Monday, December 24, 2018

Man-in-the-Middle (MITM) Attack Using Cain & Abel

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A man-in-the-middle attack results when attackers place themselves in line between two devices that are communicating, with the intent of p...

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About Me

John Lloyd Lagura: I'm John Lloyd Lagura, a passionate Network Engineer, tech blogger and a lifelong learner. I specialize in routing, switching, security, wireless and cloud technologies. I currently hold CompTIA Network+, Security+, ITIL Foundation, Cisco CCNP Security, CCNP Enterprise, CCNA Cyber Ops, Juniper JNCIA-Junos, JNCIA-SEC, JNCIA-Design, Fortinet Network Security Professional (NSE4).

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