Apps Breakdown 90% DNS

Started by SuperMiguel, September 02, 2022, 06:35:38 AM

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I have like 10 cameras that are just making DNS requests like there is no tomorrow, so 90% of my app breakdown are dns request from this cameras. The firewall rules for that VLAN are block all, but i guess DNS requests still making it to Zenarmor, should i just delete that VLAN from the Zenarmor list? or is there a way to get rid of all them requests. Thanks!

September 02, 2022, 07:25:26 PM #1 Last Edit: September 04, 2022, 12:42:27 PM by dinguz
This happens probably because the default view in the dashboard displays the number of Sessions. Because DNS is UDP based, with lots of small packets, and every packet is a session, these numbers rise quite fast, giving a skewed view.
If you change the view to Volume, it gives a better impression of the amount of traffic, and the distribution thereof. You'll probably come to the conclusion that this is nothing to worry about.
In theory there is no difference between theory and practice. In practice there is.

Is there a way to block all of these requests? so they dont show?

Quote from: SuperMiguel on September 03, 2022, 02:53:31 PM
Is there a way to block all of these requests? so they dont show?

Add a filter, surely?

Hi,

Do you want to block them or just hide them from the reports?

Block them, These are PoE cameras that dont have internet access and shouldnt make any DNS requests...

I added firewall rules to reject All IN/Out traffic from this VLAN, but still making it to Sensei, I click the block button on Sensei and they still show as blocked

I got tired of it one day and even removed the vlan from sensei and added the vlan to the  Exempted VLANs & Networks  and they still show... So not sure whats going on...

Hi,

Can you share a bug report? They shouldn't be shown if you added in Exempted VLAN and Network.