My Network Security Journal

Sharing my learning and personal experience in IT Network Security.

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...
Sunday, February 1, 2026

Check the FortiGate NAT Session Count Using Filters

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Here's a quick way to check the FortiGate NAT session count and filter the NAT IP pool via the get sys session list | grep -c  CLI comma...
Saturday, January 3, 2026

FortiGate 1800F and How to Check Transceiver Serial Number

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Here's a Fortinet link for the FortiGate 1800F series data sheet. The FG-1800F front chassis has 1x RJ45 / USB CONSOLE port, 2x GigE RJ...
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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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