Blog | Ultraviolet Networks LLC

Matt Sherif

Dec 18, 20231 min read

Feature Explorer - Threat Feeds

Threat feeds are helpful fabric connectors that allow you to dynamically whitelist or blacklist traffic, file hashes, and domains. In...

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Matt Sherif

Apr 14, 20231 min read

Use Case Explorer - Part 1 - On boot VPN using machine/computer certs, and post login SAML VPN

Some IT organizations like to image laptops and ship them out to remote users without having to cache user credentials. For organizations...

991 views0 comments

Use Case Explorer - Terminate SSLVPN to loopback

Matt Sherif

Dec 30, 20221 min read

Use Case Explorer - Terminate SSLVPN to loopback

Terminating SSL VPN to a loopback offers a lot more flexibility by means of security, filtering and inspection. In this video we take a...

1,137 views0 comments

Use Case Explorer - FortiSASE Secure Private Access (SPA)

Matt Sherif

Dec 23, 20222 min read

Use Case Explorer - FortiSASE Secure Private Access (SPA)

Update: As I was deploying my other spokes I realized spoke to spoke connectivity wasn't establishing, and routing correctly. I have...

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Matt Sherif

Dec 6, 20221 min read

Use Case Explorer - FortiSASE SIA

In this video we take a look at Securing Internet Access - say in lieu of DNS filtering services, or zecure internet access services....

93 views0 comments

FortiOS Conditional API Call using iOS Shortcuts

Matt Sherif

Nov 26, 20221 min read

FortiOS Conditional API Call using iOS Shortcuts

A colleague of mine asked a question "can you enabl/disable a policy using the FortiOS API with the iOS shortcuts app?". It turns out...

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Matt Sherif

Nov 12, 20221 min read

Things that scare you

I had a customer call me panicking that their FortiGate CPU was pegged at 100%, while sitting idle. My first question was "What firmware...

285 views0 comments

How To: MC-LAG with FortiGate Switch Controller

Matt Sherif

Nov 9, 20221 min read

How To: MC-LAG with FortiGate Switch Controller

In this video we take a look at how you can set up MC-LAG on FortiGate managed FortiSwitches. Thank you for watching, I hope this helps.

1,415 views0 comments

UltraBit - Get Factory Default Configuration for any FortiGate

Matt Sherif

Aug 31, 20221 min read

UltraBit - Get Factory Default Configuration for any FortiGate

Let's say you had to prepare a configuration for a FortiGate not in your possession. Typically a good starting point is the factory...

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Intro to FortiGate Series 3.5 - Setup Decisions part 2

Matt Sherif

Jun 14, 20221 min read

Intro to FortiGate Series 3.5 - Setup Decisions part 2

In this video we follow on from the previous module, adding a high level look at VDOMs and admin accounts.

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Intro to FortiGate Series Module 3: Setup decisions

Matt Sherif

Jun 14, 20221 min read

Intro to FortiGate Series Module 3: Setup decisions

In this video we take a look at a few setup decisions that should be made prior to putting a FortiGate into production.

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Intro to FortiGate Series Module 2: Initial configuration

Matt Sherif

May 26, 20221 min read

Intro to FortiGate Series Module 2: Initial configuration

Starting where we left off in Module 1, we take a look at: Factory Reset / Log disk format WAN/LAN Addressing LAN Services (DHCP, DNS,...

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Matt Sherif

May 19, 20221 min read

Intro to FortiGate series

Fortinet has come a long way in 22 years. And as they've started to lead in the network and cybersecurity market, I wanted to create a...

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UltraNote: Some Unknown Error during SAML Single Logout

Matt Sherif

Mar 22, 20221 min read

UltraNote: Some Unknown Error during SAML Single Logout

In a couple of my posts I noted that the Single Logout would need to be signed, and seemed to work fine despite a message that's...

139 views0 comments

Implementation Guide: FortiGate SSL VPN with Okta MFA using SAML

Matt Sherif

Mar 20, 20224 min read

Implementation Guide: FortiGate SSL VPN with Okta MFA using SAML

You may be wondering didn't you already post a redirect to Kim Frellsen's blog on this? Yes, yes I did. Here's the thing though, I came...

1,134 views0 comments

Matt Sherif

Mar 7, 20222 min read

UltraNote: AD FS SSL VPN Clock Skew

In assisting a customer with the AD FS configuration we encountered some difficulties in redirection. The particular issue looked like...

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FortiGate SSL VPN Authentication with AD FS

Matt Sherif

Feb 26, 20225 min read

FortiGate SSL VPN Authentication with AD FS

Update: including steps for tunnel based VPN as well. Update 3/10: updated assumptions I am starting to think we've pretty much covered...

1,988 views0 comments

Matt Sherif

Jan 24, 20223 min read

FortiClient Cloud - API Access

I'd first like to start off this post by wishing everyone a happy and safe new year! It's been almost 3 months since my last post, things...

411 views0 comments

UltraNote: Let's Encrypt certs in FortiOS 7.0.2

Matt Sherif

Nov 8, 20212 min read

UltraNote: Let's Encrypt certs in FortiOS 7.0.2

To stay sharp, I find myself rebuilding my lab from time to time. This latest run I did so with FortiOS 7.0.2. One of the first things I...

914 views0 comments

Using physical FortiTokens with Azure AD

Matt Sherif

Oct 29, 20213 min read

Using physical FortiTokens with Azure AD

Multi-Factor Authentication (MFA), something that we should all be doing more of, yet I don't see enough of it! Without going too far...

317 views0 comments