Hi, i use a script to prepare a bridged network for a kvm session and therefore i have this line in /etc/udev/rules.d/01-attila.rules: KERNEL=="tun", NAME="net/%k", MODE="0660", GROUP="network" After upgrading udev my file permissions of the new persistent /dev/net/tun looks so after booting up: crw-rw-rw- 1 root root 10, 200 8. Mär 00:43 /dev/net/tun I play with this lines in /etc/udev/permissions.d/00-my.permissions: a) tun:root:network:0660 b) net/tun:root:network:0660 I reboot even after changing the line but there is no change. If i do a "modprobe tun" there be the right permissions: crw-rw---- 1 root network 10, 200 8. Mär 00:43 /dev/net/tun So my questions is how and/or where can i control the file permissions of the persistent devices from the new udev? This is definitly not bad, i want more to know what i have overseen.-) See you, Attila