My Network Security Journal

Sharing my learning and personal experience in IT Network Security.

Thursday, September 3, 2026

Bypass FortiCare Registration via BIOS menu

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I stumbled upon an error while configuring a new FortiGate G-series device. I was trying to change the hostname, but I was unable to access ...
Saturday, August 8, 2026

FortiGate Upgrade Using Off License Key

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I was trying to perform a FortiGate firmware upgrade via both web GUI and TFTP but it gave me a license error. Per the Fortinet link , start...
Friday, July 10, 2026

Patching FortiBleed VPN Credential Leak

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There was a recent FortiGate SSL VPN vulnerability, commonly referred to as  FortiBleed , disclosed by Fortinet. You can verify under the SS...
Saturday, June 20, 2026

FortiGate show full-configuration (terminal length 0)

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You'll need to configure set output standard in order to view the FortiGate's full configuration without pause. This is similar to ...
Sunday, May 3, 2026

FortiGate Restore Configuration Revision

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Here's a Fortinet link on how to save and restore config using revisions in a FortiGate firewall. In FGT web GUI, click Profile name (...
Saturday, April 11, 2026

FortiGate Manual HA Failover (Reset Uptime) Using CLI

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Here's a link in troubleshooting FortiGate HA. In my opinion, it's better to reset the FortiGate device uptime to manually restore ...
Sunday, March 15, 2026

Cisco Firepower SNMP OID Bug (CSCvd33367)

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We've been trying to poll our Cisco Firepower 2100 (ASA) and Cisco Secure 3100 (ASA) to monitor the device power supply, fan and tempera...
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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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