Matt Sherif
Minor yet noteworthy change in 6.2.3
First rule of FortiOS, .0 means "dot no". As in "you shall not deploy in production". Second rule of FortiOS "Read the release notes"....
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Matt Sherif
- Dec 17, 2019
- 1 min
FortiSandbox
This started off as a demonstration after I had corrected an issue, but it turned into me showing how the sandbox signatures get...
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Matt Sherif
- Oct 16, 2019
- 1 min
Conditional DNS Forwarding on Fortigate/FortiProxy
This morning I was poking around the lab and I got this email: Okay - let me look at FortiAnalyzer to figure out what's going on, so I...
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Matt Sherif
- Oct 11, 2019
- 6 min
Using FortiAuthenticator to replace vCenter root CA
Ah, certificates, you lovely pains in my backside. On one hand, you secure the web, validate that services say they are who they say they...
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Matt Sherif
- Oct 7, 2019
- 1 min
Bulk adding mac address devices to FortiGate
I was poking around on a popular social media site and saw a FortiGate user asking about devices being auto added based on MAC address....
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Matt Sherif
- Sep 25, 2019
- 1 min
WiFi Best Practices
A colleague of mine, Bryan Wolski has written up a great article for InfoSec Monkey, and while many of the screenshots are Fortinet...
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Matt Sherif
- Sep 9, 2019
- 4 min
Let's Encrypt with Fortigate
Update Feb 7, 2020: I had missed something in the original script and have updated it to update the certificate gracefully. I initially...
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Matt Sherif
- Aug 30, 2019
- 3 min
Multiple authentication use cases for RADIUS clients
You recently bought FortiAuthenticator, you've deployed it, and you even configured it to perform admin authentication on your FortiGate....
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Matt Sherif
- Aug 28, 2019
- 1 min
Sudo Command in FortiOS
If you're a *nix user, you know how nice it is to sudo. A good friend and colleague of mine, Manny Fernandez did an awesome writeup on...
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Matt Sherif
- Aug 28, 2019
- 1 min
Rollback after code upgrade
Contingency planning, we all do it when we plan firmware, operating system, or application upgrades. The biggest one is "how do we roll...
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Matt Sherif
- Aug 28, 2019
- 1 min
Exporting VMs to OVA format
In working with a customer, I encountered a bit of an issue and confusion regarding what files to select when importing an OVF into their...
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Matt Sherif
- Aug 25, 2019
- 2 min
Secure remote desktop without poking holes in your firewall
You’ve just signed off on that big project with Company X, they’re going to implement the new Flux Capacitor you just bought. Even...
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Matt Sherif
- Aug 21, 2019
- 1 min
Adding the default SLAs to a FortiGate upgraded to 6.2.1
If you've unboxed a new FortiGate and loaded 6.2.1 out of the box and started configuring SD-WAN, you probably noticed the cool new...
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Matt Sherif
- Jun 28, 2019
- 1 min
Fortinet Security Fabric - FortiMail and FortiSandbox
With the recent upswing in attacks against public agencies, I felt it would be useful to showcase how these attacks can be avoided. Using...
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Matt Sherif
- Jun 14, 2019
- 1 min
You shall not click the link!
More on the Forti-In action series, where I showcase real world use cases as I come across them or customers bring them to me. Had...
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Matt Sherif
- Jun 11, 2019
- 1 min
The time I (almost) caught malware
I was looking for freeware - likely one of the most common reasons people end up with malware from downloading stuff. And what happened...
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Matt Sherif
- May 15, 2019
- 1 min
Resolving Source IPs in FortiAnalyzer FortiView
One of my main views in FortiAnalyzer is FortiView, it's a powerful, easy to use and understand dashboard. One question I hear frequently...
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Matt Sherif
- May 10, 2019
- 1 min
Turn the lights off on your FortiAPs
If this were an ideal world, we'd never see where the WiFi comes from - those are called access points (APs) - or the blinky lights on...
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Matt Sherif
- May 6, 2019
- 2 min
DHCP Relay on FortiGate
The FortiGate is a mighty firewall, it has many features, and can do many jobs. In many small environments it's not uncommon to see it...
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Matt Sherif
- May 3, 2019
- 2 min
FortiAnalyzer FortiView not showing data
Had an interesting one recently, I had a customer get in touch with me regarding their FortiAnalyzer. The FortiView pane was showing 'No...
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