My Network Security Journal

Sharing my learning and personal experience in IT Network Security.

Saturday, January 7, 2017

Upgrading the Image of a Cisco ASA 5516-X

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I was fortunate to configure and install a Cisco ASA 5516-X firewall for a site in Thailand. The visio stencil for Cisco ASA 5516-X and 550...
Wednesday, November 2, 2016

Cisco OpenDNS (Cisco Umbrella)

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OpenDNS (now called Cisco Umbrella ) was acquired by Cisco last year (2015) and they provide cloud-based ( SaaS ) web content filtering a...
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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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