My Network Security Journal

Sharing my learning and personal experience in IT Network Security.

Saturday, March 13, 2021

Configuring NetFlow (NSEL) in a Cisco ASA Firewall

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Here's a nice Cisco link for configuring NetFlow Secure Event Logging (NSEL) in a Cisco ASA Firewall. The Cisco ASA supports NetFlow ver...
Sunday, February 7, 2021

Cisco ASA 5506-X ROMMON Upgrade

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I needed to upgrade the ROMMON firmware on a Cisco ASA 5506-X firewall (with SSD or Firepower module). This is a required step before conve...
Saturday, January 2, 2021

Cisco ASA 5506-X Security Plus License

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I had to configure a pair of Cisco ASA 5506-X firewalls and apply a Security Plus license in order to support the Active/Standby Failover (H...
Sunday, December 6, 2020

Configure Cisco AnyConnect in ASA Multiple Context Mode

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I tried the popular Beef Wellington (English meat pie) at Bread Street Kitchen Marina Bay Sands , which is owned by celebrity chef Gordon ...
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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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