Description of problem: firewalld.service currently lists NetworkManager.service in its Before dependency, therefore systemd will refuse starting the latter until the former is ready. This is not needed and it's wrong: NetworkManager will dbus activate firewalld when it needs it, and will happily asynchronously wait for a reply on the bus if firewalld is not ready by the time the call happens. By removing the explicit dep, you allow NM to start up early and claim the name early, which in turns allows gnome-shell to start earlier so the user can type the password while the rest of the system loads. Version-Release number of selected component (if applicable): firewalld-0.3.14.2-4.fc23.noarch
Starting firewalld late, also while activating a network connection or interface, is bad and could lead for example to failed DHCP requests or time frames without a firewall in place. This would be very bad from a security standpoint. It is very important to start the firewall before any network device is activated. firewalld lists network.target in Before, not NetworkManager.service. A different solution to be able to start gnome-shell early would be to drop the dependency to network.target in gnome-shell.
(Sorry I missed this needinfo) (In reply to Thomas Woerner from comment #1) > Starting firewalld late, also while activating a network connection or > interface, is bad and could lead for example to failed DHCP requests or time > frames without a firewall in place. This would be very bad from a security > standpoint. This is not about starting network connections before firewalld, it's about starting NetworkManager (the service) before firewalld. NM is able to wait for firewalld before touching the network, while still processing DBus requests and without delaying the startup of other components. > > It is very important to start the firewall before any network device is > activated. firewalld lists network.target in Before, not > NetworkManager.service. This is not factually true: firewalld lists both network.target and NetworkManager.service. > A different solution to be able to start gnome-shell early would be to drop > the dependency to network.target in gnome-shell. There is no dependency on network.target. There is a (DBus) dependency on NetworkManager to show the network UI.
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