On 12/4/20 7:44 PM, home user wrote:
On 12/3/20 10:57 PM, Ed Greshko wrote:
> The virbr0 interface is the interface between your system and any
> qemu/kvm Virtual Machines you
> deploy. This is an "internal" interface not connected directly to the
> Internet.
I've never heard of this. I'm not sure, but this seems like something I
don't use, at least not explicitly. Is this something that I can remove
from the system, or at least turn off (so it won't use CPU), Or is this
"under the hood" of things I do use?
The workstation install has libvirtd enabled by default. If you aren't
going to use VMs, then you can run "systemctl disable libvirtd".
> You most likely don't need mdns (Multicast DNS) and can
delete that
> service. You *may* need dhcpv6-client
> to properly configure your IPv6 automatically when the system starts.
How do I delete a service (mdns)?
You don't delete it. You can "systemctl disable avahi-daemon". If it
mentions something about socket activation, then you can use "mask"
instead of "disable" to keep it off.
If I understood you and that pdf file correctly, tivoconnect has
nothing
to do with watching youtube videos or online streaming (such as Viki,
Rakuten, or Zoom). I think I don't use this either. But tivoconnect
sure shows up a lot in both columns. Is there something I should remove
from the system (via dnf), or shut off?
You are unlikely to have something running on that port. That number is
most likely just getting used randomly, unless that's one of the ports
that gets scanned for. In which case, there's nothing you can do anyway.
Someone in this thread suggested that outgoing traffic should be
examined as well as incoming. That does make sense to me. The
firewall-cmd commands I did: did those look at both incoming and
outgoing, or just incoming?
By default the firewall only blocks incoming, but it's possible to block
outgoing as well.