Hi, On a server, an interface previously named eno1
Oct 9 20:51:05 edge01-terrahost kernel: [ 0.310650] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k Oct 9 20:51:05 edge01-terrahost kernel: [ 0.310652] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. Oct 9 20:51:05 edge01-terrahost kernel: [ 0.310769] e1000e 0000:00:19.0: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode Oct 9 20:51:05 edge01-terrahost kernel: [ 0.396544] e1000e 0000:00:19.0 0000:00:19.0 (uninitialized): registered PHC clock Oct 9 20:51:05 edge01-terrahost kernel: [ 0.481666] e1000e 0000:00:19.0 eth0: (PCI Express:2.5GT/s:Width x1) 74:46:a0:90:81:4d Oct 9 20:51:05 edge01-terrahost kernel: [ 0.481670] e1000e 0000:00:19.0 eth0: Intel(R) PRO/1000 Network Connection Oct 9 20:51:05 edge01-terrahost kernel: [ 0.481705] e1000e 0000:00:19.0 eth0: MAC: 10, PHY: 11, PBA No: 0100FF-0FF Oct 9 20:51:05 edge01-terrahost kernel: [ 2.758227] e1000e 0000:00:19.0 eno1: renamed from eth0 Oct 9 20:51:05 edge01-terrahost kernel: [ 9.966981] e1000e: eno1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: None is now named eth0 Nov 12 22:35:17 edge01-terrahost kernel: [ 0.306296] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k Nov 12 22:35:17 edge01-terrahost kernel: [ 0.306298] e1000e: Copyright(c) 1999 - 2015 Intel Corporation. Nov 12 22:35:17 edge01-terrahost kernel: [ 0.306416] e1000e 0000:00:19.0: Interrupt Throttling Rate (ints/sec) set to dynamic conservative mode Nov 12 22:35:17 edge01-terrahost kernel: [ 0.393096] e1000e 0000:00:19.0 0000:00:19.0 (uninitialized): registered PHC clock Nov 12 22:35:17 edge01-terrahost kernel: [ 0.478158] e1000e 0000:00:19.0 eth0: (PCI Express:2.5GT/s:Width x1) 74:46:a0:90:81:4d Nov 12 22:35:17 edge01-terrahost kernel: [ 0.478162] e1000e 0000:00:19.0 eth0: Intel(R) PRO/1000 Network Connection Nov 12 22:35:17 edge01-terrahost kernel: [ 0.478197] e1000e 0000:00:19.0 eth0: MAC: 10, PHY: 11, PBA No: 0100FF-0FF Nov 12 22:35:17 edge01-terrahost kernel: [ 9.919523] e1000e: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: None I never `touch /etc/udev/rules.d/80-net-name-slot.rules` (but the file is installed by eudev) nor added net.ifname=0 to my boot command line. I didn’t change the configuration on purpose, I only did the regular updates. So, I have absolutely no idea why this happened. What could have triggered it? PS: Old interface names were way more guessable than the new ones (eth0 used to work 99% of time). I really don’t understand why someone woke a morning a though “we should randomise this, it’s too much stable”. -- Alarig
