I wouldn't worry about it.
Traffic sniffing is mostly a concern for computers connected to public wireless networks. A linux machine, in a datacenter, connected via an ethernet cable doesn't have much to worry about.
Traffic sniffing is mostly a concern for computers connected to public wireless networks. A linux machine, in a datacenter, connected via an ethernet cable doesn't have much to worry about.
If you think traffic sniffing is "just for wifi", you're out of your mind.