= Features/SystemdPredictableNetworkInterfaceNames = https://fedoraproject.org/wiki/Features/SystemdPredictableNetworkInterfaceNames Feature owner(s): Kay Sievers <kay at redhat dot com> The udevd service has a long history of providing predicatable names for block devices and others. For Fedora 19 we'd like to provide the same for network interfaces, following a similar naming scheme, but only as fallback if not other solution such as biosdevname is installed or the administrator manually defined network interface names via udev rules or the old network scripts. == Detailed description == The classic naming scheme for network interfaces applied by the kernel is to simply assign names beginning with "eth0", "eth1", ... to all interfaces as they are probed by the drivers. As the driver probing is generally not predictable for modern technology this means that as soon as multiple network interfaces are available the assignment of the names "eth0", "eth1" and so on is generally not fixed anymore and it might very well happen that "eth0" on one boot ends up being "eth1" on the next. This can have serious security implications, for example in firewall rules which are coded for certain naming schemes, and which are hence very sensitive to unpredictable changing names. Starting with v197 systemd/udev can automatically assign predictable, stable network interface names for all local Ethernet, WLAN and WWAN interfaces. This is a departure from the traditional interface naming scheme ("eth0", "eth1", "wlan0", ...), but should fix real problems. This feature is about enabling this as default in Fedora, but only as a fallback if the user/administrator did not manually assign names to interfaces via udev rules, or via the old networking scripts, or if biosdevname is installed. For a longer discussion about this feature see the upstream documentation. _______________________________________________ devel-announce mailing list devel-announce@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel-announce -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
