Pád serveru, analýza LOG file

[Xehos]

Zdravím, z noci ze včera na dnešek mi spadl server s Ubuntu 16.04. Zvenku začal být nedostupný a na nic nereagoval ani na lokální síti. Po restartu vše normálně naběhlo. Ve /var/log jsem si otevřel soubor kern.log.1, kde jsem zřel následující sled událostí:

Kód: [Vybrat]

Oct 25 01:58:57 whonnock-x64 kernel: [457982.403232] br-61a4fe849fb0: port 9(veth526162e) entered disabled state
Oct 25 01:58:57 whonnock-x64 kernel: [457982.406215] device veth526162e left promiscuous mode
Oct 25 01:58:57 whonnock-x64 kernel: [457982.406221] br-61a4fe849fb0: port 9(veth526162e) entered disabled state
Oct 25 01:58:57 whonnock-x64 NetworkManager[887]: <info>  [1603583937.9299] devices removed (path: /sys/devices/virtual/net/vethb540f6f, iface: vethb540f6f)
Oct 25 01:58:57 whonnock-x64 NetworkManager[887]: <info>  [1603583937.9308] device (vethb540f6f): driver 'veth' does not support carrier detection.
Oct 25 01:58:57 whonnock-x64 NetworkManager[887]: <info>  [1603583937.9312] device (veth526162e): driver 'veth' does not support carrier detection.
Oct 25 01:58:57 whonnock-x64 NetworkManager[887]: <info>  [1603583937.9471] devices removed (path: /sys/devices/virtual/net/veth526162e, iface: veth526162e)
Oct 25 01:58:58 whonnock-x64 kernel: [457982.589362] br-61a4fe849fb0: port 5(veth213fd68) entered disabled state
Oct 25 01:58:58 whonnock-x64 NetworkManager[887]: <info>  [1603583938.0875] device (veth213fd68): link disconnected
Oct 25 01:58:58 whonnock-x64 kernel: [457982.592046] veth9ea8f5b: renamed from eth0
Oct 25 01:58:58 whonnock-x64 NetworkManager[887]: <info>  [1603583938.0876] device (br-61a4fe849fb0): link disconnected (deferring action for 4 seconds)
Oct 25 01:58:58 whonnock-x64 NetworkManager[887]: <warn>  [1603583938.1212] device (veth9ea8f5b): failed to find device 115 'veth9ea8f5b' with udev
Oct 25 01:58:58 whonnock-x64 NetworkManager[887]: <info>  [1603583938.1251] manager: (veth9ea8f5b): new Veth device (/org/freedesktop/NetworkManager/Devices/162)
Oct 25 01:58:58 whonnock-x64 NetworkManager[887]: <info>  [1603583938.1399] devices added (path: /sys/devices/virtual/net/veth9ea8f5b, iface: veth9ea8f5b)
Oct 25 01:58:58 whonnock-x64 NetworkManager[887]: <info>  [1603583938.1400] device added (path: /sys/devices/virtual/net/veth9ea8f5b, iface: veth9ea8f5b): no ifupdown configuration found.
Oct 25 01:58:58 whonnock-x64 kernel: [457983.123662] br-61a4fe849fb0: port 5(veth213fd68) entered disabled state
Oct 25 01:58:58 whonnock-x64 kernel: [457983.132271] device veth213fd68 left promiscuous mode
Oct 25 01:58:58 whonnock-x64 kernel: [457983.132281] br-61a4fe849fb0: port 5(veth213fd68) entered disabled state
Oct 25 01:58:58 whonnock-x64 NetworkManager[887]: <info>  [1603583938.6475] devices removed (path: /sys/devices/virtual/net/veth9ea8f5b, iface: veth9ea8f5b)
Oct 25 01:58:58 whonnock-x64 NetworkManager[887]: <info>  [1603583938.6477] device (veth9ea8f5b): driver 'veth' does not support carrier detection.
Oct 25 01:58:58 whonnock-x64 NetworkManager[887]: <info>  [1603583938.6479] device (veth213fd68): driver 'veth' does not support carrier detection.
Oct 25 01:58:58 whonnock-x64 NetworkManager[887]: <info>  [1603583938.6622] devices removed (path: /sys/devices/virtual/net/veth213fd68, iface: veth213fd68)
Oct 25 01:59:02 whonnock-x64 NetworkManager[887]: <info>  [1603583942.8171] device (br-61a4fe849fb0): link disconnected (calling deferred action)

Celý log zde: https://pastebin.com/rwtxrEXX

Pomohl by mi někdo s analýzou toho co se vlastně stalo a případně jak problém řešit? Předem díky moc.