Image vs Container Registry

July 04, 2024

I like analogies. They make it easier to express ideas and communicate concepts.

Recently someone was asking about the difference between an "images" vs "registry", and how they pertain to containers.

I came across this one amidst a google search (source unknown - sorry):

Imagine a . . .

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Refresher on negative indexing in python

July 02, 2024

Friendly reminder regarding python slice notation for negative indexing. It's covered really well here.

Basically, the last value has an index of -1... second last has an index of -2... and so on.

 +---+---+---+---+---+---+
 | P | y | t | h | o | n |
 +---+---+---+---+---+---+
 0 1 2 3 4 5
 -6 -5 -4 -3 -2 -1 . . .

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Favorite quote on listening

June 24, 2024

I recently came across an email newsletter blurb that resonated:

Listening is a bit of a lost art.

It goes beyond just hearing words—it’s about creating a space where respect and understanding can grow, which is key for building supportive and meaningful relationships.

Becoming a better listener means giving . . .

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Original game developer notes for Deus Ex

Whoa. This is awesome.

June 15, 2024

I was feeling a bit nostalgic this weekend and re-watched Warren Spector's awesome GDC 17 presentation describing the development of Deus Ex. If you haven't seen it and have some spare time, check it out here. It has a truly fascinating lifecycle.

During the presentation, Warren alluded to a lot of pre-game development and . . .

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ECMP Load Balancing Algorithms on Fortigates

June 10, 2024

Just a quick refresher on the various ECMP algorithms that Fortigates support (as of FortiOS 7.4):

  • Source IP - All traffic from a specific source IP is sent to the same interface.
  • Weighted - Interfaces with higher weights get more traffic.
  • Source-destination IP - All traffic sent from a specific source IP to a specific . . .

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Inspection mode feature comparison on Fortigates

May 24, 2024

I came across this nifty doc describing the capabilities of flow-based vs proxy-based inspection modes for Fortigates. Very cool stuff.

Silvrback blog image

Obvious (but notable) takeaway: certain features only work with proxy-based inspection mode.

  • Video Filter
  • Inline CASB
  • ICAP
  • Web Application Firewall
  • Data . . .

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Helpful Fortigate CLI Commands

May 22, 2024

Here's my list of helpful CLI commands for Fortinet stuff (all published in the Fortinet Doc Library. I'll keep adding to this over time.

FortiGuard

  • diagnose autoupdate versions - Lists the status of FortiGuard DBs and engines installed.

Routing

  • get router info routing-table all - . . .

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