I have a vm for which I have s specific whitelist only firewall. It is supposed to only allow connections to the IPs an app connects to when syncing.
I first got the sync server IP’s listening to tcpdump, then when I had the IP’s I activated the whitelist.
This worked perfectly for some time, but now it appears that the IP’s have changed. I could do the same thing again but repeating the process regularly is annoying and defeats the whole purpose of only ever allowing network connections to specific whitelisted serves.
Alternatively, I could set up a process to only allow network traffic from that app somewhat.
Using debian-11 btw.
Any help is appreceated !!!