How to block an application using Firewalla Network Flows?

How to block an application?

Here is a quick example of how to block TikTok from an iPhone.   The methodology here applies to other applications as well. 

1. Launch the TikTok app on your phone, and ...  spend some time watching people being silly ... or a quick-cooking tip ... this app is pretty addictive ... stop the app in 5 min or so...  
2. Launch and Open Firewalla App
3. Tap on the Firewalla Box-> "Devices"
4. Find your iPhone device, tap on the iPhone -> "Network Flows" -> "History"

At this stage, you will see a bunch of accesses to tiktokcdn.com and also tiktokv.com. 

Tap on one of them, and you will get the detailed information page.  Then tap on the block button on the bottom, then tap on block domain tiktokv.com

Now you are done.  Tiktok should be blocked. 

If you go into the rules button, you will see the TikTok rule there. And if you want to watch TikTok again, just pause the rule ...   

What if something goes wrong after the block? 

In 1.970 (in early access now).  You can tap on (...) button under rules to launch diagnostics functions.  Here you will find, for example, blocking TikTok also blocks slickdeals.net

If you see problems like this happening, you will need to change the block to "Domain Block", this feature is coming in 1.970 as well.