Category Archives: FortiGate

FortiGate AD Polling with Windows Server 2003

Today, I was helping a customer set up Active Directory polling from a FortiGate firewall using the External Connector which…

By Manny Fernandez

February 22, 2021

Using WAN Link Monitor for Redundant Internet Connections

First thing I want to mention is that there is other ways of doing multiple ISPs using SD WAN configuration…

By Manny Fernandez

February 10, 2021

Setting Up Notification of FortiGate Firewalls with Automation

Staring in 6.2 there was the ability to set up automation stitches on the FortiGate firewalls.  In 6.4, Fortinet enhanced…

By Manny Fernandez

February 6, 2021

Setting up SSL Offload and Load Balancing for inbound connections on a FortiGate

Today I was working with a colleague of mine on a proof-of-concept for one of his customers.  The requirements were…

By Manny Fernandez

August 24, 2020

Protected: Using Referrer Field with FortiGate Web Filter

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By Manny Fernandez

August 7, 2020

Dynamic VLANs with Single SSID using FortiAP and FortiAuthenticator

First and foremost, a special shout out to a friend that helped with this config.  Juan Perez, thank you brother.…

By Manny Fernandez

June 26, 2020

Reverting from Comprehensive Mode to Optimal Mode on FortiOS 6.4.1

If you are like me, you turn on all kinds of features just because.  I upgraded my lab FortiGate to…

By Manny Fernandez

June 7, 2020

Bi-directional DNAT on FortiGate Firewalls

I am a BIG supporter of Central NAT.  I believe it is in-line with the present day firewall platforms.  Even…

By Manny Fernandez

May 28, 2020

Separate VRF for Out-of-Band Management in FortiOS

I am currently running FortiOS 6.4 on this FortiGate.  The use case is to have an out-of-band interface that points…

By Manny Fernandez

May 27, 2020

Deploying SSL VPNs Using Multiple Realms

Realms are a feature on the FortiGate that I have written about in the past, but I never really did…

By Manny Fernandez

May 26, 2020

FortiClient CLI for Linux using Realms

Last year I wrote an article about installing FortiClient on a Linux machine.  There were two options; CLI and GUI.  Today…

By Manny Fernandez

May 18, 2020

Anti-SPAM Feature on FortiGate Firewalls

Normally, I position FortiMail for anti-SPAM at customers.  However, today I decided to play with the Anti-SPAM feature on the…

By Manny Fernandez

May 16, 2020

VWire with FortiGate Firewalls

Although the FortGate CAN operate in transparent mode, I rarely used/use it.  Fortinet introduced VWire which is a layer 2 pair…

By Manny Fernandez

May 14, 2020

Built-In “IPerf” on the FortiGate Firewall

I happen to love iperf.  Iperf is a tool that has been around for a long time.  The idea is…

By Manny Fernandez

May 14, 2020

Limiting Protocols in FortiGate Web Access Portal VPN

When you connect to a FortiGate in Web Portal mode, by default, you are able to create bookmarks using HTTP/HTTPS,…

By Manny Fernandez

May 12, 2020

Connect to both Fortigates in an HA Cluster Separately

When you configure a FortiGate in HA, normally, there is no way connect to the second box unless you ssh…

By Manny Fernandez

May 6, 2020

Syslog Filtering on FortiGate Firewall & Syslog-NG

We recommend sending FortiGate logs to a FortiAnalyzer as it produces great reports and great, usable information.  However sometimes, you…

By Manny Fernandez

April 27, 2020

Troubleshooting FortClient VPN Connectivity Issues with FortiGate

As more and more users are using remote access VPNs and probably using FortiClient, I wanted to share the errors…

By Manny Fernandez

April 23, 2020

Restricting YouTube to Specific Channels on FortiGate Firewalls

Please note that YouTube is changing the way it categorizes content to comply with COPPA (Children's Online Privacy Protection Act). …

By Manny Fernandez

April 20, 2020

Adding Elastic IPs to AWS FortiGate to be used as VIPs

Lately I have been doing some AWS.  I am looking to get certified in the short-term.  I was struggling with…

By Manny Fernandez

March 25, 2020

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