How packets are sent from local machine, to the router, and the internet [closed]

I’m on an Ubuntu 20.04 machine and I’m wondering why this doesn’t work:
If I set my UFW firewall rules to:
ALLOW OUT TO {GATEWAY-IP} port 80 proto tcp from {MY-MACHINE}
ALLOW OUT TO {GATEWAY-IP} port 443 proto tcp from {MY-MACHINE}
ALLOW O… Continue reading How packets are sent from local machine, to the router, and the internet [closed]

DNS and sometimes TCP packet are being sent out upon disconnecting and connecting wifi connection

I am monitoring my network interface and noticed that I can reproduce a behavior where some cryptic DNS packets are being sent out as well as TCP sometimes, without me opening any browser or application for that matter.

All… Continue reading DNS and sometimes TCP packet are being sent out upon disconnecting and connecting wifi connection

Would sniffing all network traffic from android device to check for spyware be a viable solution

I suspect that my Google pixel (Android 9) phone has some sort of a spyware installed. There are no obvious symptoms like overheating, extreme data usage, or battery draining at an unusual rate. But I have very good reason to… Continue reading Would sniffing all network traffic from android device to check for spyware be a viable solution