Network problem
by logging from LinuxQuestions.org on (#6F7XB)
I was losing ssh connection to my server occasionally and for short periods of time. When I checked var/log/messages I saw the following errors, why could this happen and how can I fix it?
OS: Oracle Linux Server release 6.6
Code:Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Auto-activating connection 'Auto em1'.
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) starting connection 'Auto em1'
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> (em1): device state change: disconnected -> prepare (reason 'none') [3 4 0]
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) Stage 1 of 5 (Device Prepare) scheduled...
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Auto-activating connection 'Auto p4p2'.
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) starting connection 'Auto p4p2'
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> (p4p2): device state change: disconnected -> prepare (reason 'none') [3 4 0]
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 1 of 5 (Device Prepare) scheduled...
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) Stage 1 of 5 (Device Prepare) started...
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) Stage 2 of 5 (Device Configure) scheduled...
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) Stage 1 of 5 (Device Prepare) complete.
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 1 of 5 (Device Prepare) started...
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 2 of 5 (Device Configure) scheduled...
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 1 of 5 (Device Prepare) complete.
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) Stage 2 of 5 (Device Configure) starting...
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> (em1): device state change: prepare -> config (reason 'none') [4 5 0]
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) Stage 2 of 5 (Device Configure) successful.
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) Stage 3 of 5 (IP Configure Start) scheduled.
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) Stage 2 of 5 (Device Configure) complete.
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 2 of 5 (Device Configure) starting...
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> (p4p2): device state change: prepare -> config (reason 'none') [4 5 0]
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 2 of 5 (Device Configure) successful.
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 3 of 5 (IP Configure Start) scheduled.
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 2 of 5 (Device Configure) complete.
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) Stage 3 of 5 (IP Configure Start) started...
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> (em1): device state change: config -> ip-config (reason 'none') [5 7 0]
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) Beginning DHCPv4 transaction
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> dhclient started with pid 64425
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) DHCPv4 will time out in 45 seconds
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) Stage 3 of 5 (IP Configure Start) complete.
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 3 of 5 (IP Configure Start) started...
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> (p4p2): device state change: config -> ip-config (reason 'none') [5 7 0]
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) Beginning DHCPv4 transaction
Oct 2 15:04:25 soolean dhclient[64425]: Internet Systems Consortium DHCP Client 4.1.1-P1
Oct 2 15:04:25 soolean dhclient[64425]: Copyright 2004-2010 Internet Systems Consortium.
Oct 2 15:04:25 soolean dhclient[64425]: All rights reserved.
Oct 2 15:04:25 soolean dhclient[64425]: For info, please visit https://www.isc.org/software/dhcp/
Oct 2 15:04:25 soolean dhclient[64425]:
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> dhclient started with pid 64426
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) DHCPv4 will time out in 45 seconds
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 3 of 5 (IP Configure Start) complete.
Oct 2 15:04:25 soolean dhclient[64426]: Internet Systems Consortium DHCP Client 4.1.1-P1
Oct 2 15:04:25 soolean dhclient[64426]: Copyright 2004-2010 Internet Systems Consortium.
Oct 2 15:04:25 soolean dhclient[64426]: All rights reserved.
Oct 2 15:04:25 soolean dhclient[64426]: For info, please visit https://www.isc.org/software/dhcp/
Oct 2 15:04:25 soolean dhclient[64426]:
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> (em1): DHCPv4 state changed nbi -> preinit
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> (p4p2): DHCPv4 state changed nbi -> preinit
Oct 2 15:04:25 soolean dhclient[64425]: Listening on LPF/em1/20:47:47:88:b6:9c
Oct 2 15:04:25 soolean dhclient[64426]: Listening on LPF/p4p2/68:05:ca:1d:e9:b5
Oct 2 15:04:25 soolean dhclient[64425]: Sending on LPF/em1/20:47:47:88:b6:9c
Oct 2 15:04:25 soolean dhclient[64426]: Sending on LPF/p4p2/68:05:ca:1d:e9:b5
Oct 2 15:04:25 soolean dhclient[64425]: Sending on Socket/fallback
Oct 2 15:04:25 soolean dhclient[64426]: Sending on Socket/fallback
Oct 2 15:04:29 soolean dhclient[64425]: DHCPDISCOVER on em1 to 255.255.255.255 port 67 interval 8 (xid=0x44e64ee2)
Oct 2 15:04:29 soolean dhclient[64426]: DHCPDISCOVER on p4p2 to 255.255.255.255 port 67 interval 5 (xid=0x2e01dc1f)
Oct 2 15:04:34 soolean dhclient[64426]: DHCPDISCOVER on p4p2 to 255.255.255.255 port 67 interval 11 (xid=0x2e01dc1f)
Oct 2 15:04:37 soolean dhclient[64425]: DHCPDISCOVER on em1 to 255.255.255.255 port 67 interval 20 (xid=0x44e64ee2)
Oct 2 15:04:45 soolean dhclient[64426]: DHCPDISCOVER on p4p2 to 255.255.255.255 port 67 interval 21 (xid=0x2e01dc1f)
Oct 2 15:04:57 soolean dhclient[64425]: DHCPDISCOVER on em1 to 255.255.255.255 port 67 interval 19 (xid=0x44e64ee2)
Oct 2 15:05:01 soolean abrt: detected unhandled Python exception in '/usr/bin/barman'
Oct 2 15:05:01 soolean abrtd: New client connected
Oct 2 15:05:06 soolean dhclient[64426]: DHCPDISCOVER on p4p2 to 255.255.255.255 port 67 interval 19 (xid=0x2e01dc1f)
Oct 2 15:05:10 soolean NetworkManager[4098]: <warn> (em1): DHCPv4 request timed out.
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> (em1): canceled DHCP transaction, DHCP client pid 64425
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (em1) Stage 4 of 5 (IP4 Configure Timeout) scheduled...
Oct 2 15:05:10 soolean NetworkManager[4098]: <warn> (p4p2): DHCPv4 request timed out.
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> (p4p2): canceled DHCP transaction, DHCP client pid 64426
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 4 of 5 (IP4 Configure Timeout) scheduled...
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (em1) Stage 4 of 5 (IP4 Configure Timeout) started...
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (em1) Stage 5 of 5 (IP Configure Commit) scheduled...
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (em1) Stage 4 of 5 (IP4 Configure Timeout) complete.
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 4 of 5 (IP4 Configure Timeout) started...
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 5 of 5 (IP Configure Commit) scheduled...
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 4 of 5 (IP4 Configure Timeout) complete.
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (em1) Stage 5 of 5 (IP Configure Commit) started...
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (em1) Stage 5 of 5 (IP Configure Commit) failed (no IP configuration found)
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> (em1): device state change: ip-config -> failed (reason 'ip-config-unavailable') [7 9 5]
Oct 2 15:05:10 soolean NetworkManager[4098]: <warn> Activation (em1) failed.
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (em1) Stage 5 of 5 (IP Configure Commit) complete.
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 5 of 5 (IP Configure Commit) started...
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 5 of 5 (IP Configure Commit) failed (no IP configuration found)
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> (p4p2): device state change: ip-config -> failed (reason 'ip-config-unavailable') [7 9 5]
Oct 2 15:05:10 soolean NetworkManager[4098]: <warn> Activation (p4p2) failed.
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 5 of 5 (IP Configure Commit) complete.
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> (em1): device state change: failed -> disconnected (reason 'none') [9 3 0]
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> (em1): deactivating device (reason 'none') [0]
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> (p4p2): device state change: failed -> disconnected (reason 'none') [9 3 0]
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> (p4p2): deactivating device (reason 'none') [0]
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Auto-activating connection 'Auto em1'.
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) starting connection 'Auto em1'
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> (em1): device state change: disconnected -> prepare (reason 'none') [3 4 0]
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) Stage 1 of 5 (Device Prepare) scheduled...
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Auto-activating connection 'Auto p4p2'.
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) starting connection 'Auto p4p2'
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> (p4p2): device state change: disconnected -> prepare (reason 'none') [3 4 0]
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 1 of 5 (Device Prepare) scheduled...
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) Stage 1 of 5 (Device Prepare) started...
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) Stage 2 of 5 (Device Configure) scheduled...
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) Stage 1 of 5 (Device Prepare) complete.
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 1 of 5 (Device Prepare) started...
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 2 of 5 (Device Configure) scheduled...
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 1 of 5 (Device Prepare) complete.
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) Stage 2 of 5 (Device Configure) starting...
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> (em1): device state change: prepare -> config (reason 'none') [4 5 0]
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) Stage 2 of 5 (Device Configure) successful.
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) Stage 3 of 5 (IP Configure Start) scheduled.
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) Stage 2 of 5 (Device Configure) complete.
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 2 of 5 (Device Configure) starting...
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> (p4p2): device state change: prepare -> config (reason 'none') [4 5 0]
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 2 of 5 (Device Configure) successful.
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 3 of 5 (IP Configure Start) scheduled.
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 2 of 5 (Device Configure) complete.
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) Stage 3 of 5 (IP Configure Start) started...
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> (em1): device state change: config -> ip-config (reason 'none') [5 7 0]
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) Beginning DHCPv4 transaction
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> dhclient started with pid 64832
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) DHCPv4 will time out in 45 seconds
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) Stage 3 of 5 (IP Configure Start) complete.
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 3 of 5 (IP Configure Start) started...
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> (p4p2): device state change: config -> ip-config (reason 'none') [5 7 0]
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) Beginning DHCPv4 transaction
Oct 2 15:05:14 soolean dhclient[64832]: Internet Systems Consortium DHCP Client 4.1.1-P1
Oct 2 15:05:14 soolean dhclient[64832]: Copyright 2004-2010 Internet Systems Consortium.
Oct 2 15:05:14 soolean dhclient[64832]: All rights reserved.
Oct 2 15:05:14 soolean dhclient[64832]: For info, please visit https://www.isc.org/software/dhcp/
Oct 2 15:05:14 soolean dhclient[64832]:
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> dhclient started with pid 64833
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) DHCPv4 will time out in 45 seconds
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 3 of 5 (IP Configure Start) complete.
Oct 2 15:05:14 soolean dhclient[64833]: Internet Systems Consortium DHCP Client 4.1.1-P1
Oct 2 15:05:14 soolean dhclient[64833]: Copyright 2004-2010 Internet Systems Consortium.
Oct 2 15:05:14 soolean dhclient[64833]: All rights reserved.
Oct 2 15:05:14 soolean dhclient[64833]: For info, please visit https://www.isc.org/software/dhcp/
Oct 2 15:05:14 soolean dhclient[64833]:
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> (em1): DHCPv4 state changed nbi -> preinit
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> (p4p2): DHCPv4 state changed nbi -> preinit
Oct 2 15:05:14 soolean dhclient[64832]: Listening on LPF/em1/20:47:47:88:b6:9c
Oct 2 15:05:14 soolean dhclient[64832]: Sending on LPF/em1/20:47:47:88:b6:9c
Oct 2 15:05:14 soolean dhclient[64832]: Sending on Socket/fallback
Oct 2 15:05:14 soolean dhclient[64832]: DHCPDISCOVER on em1 to 255.255.255.255 port 67 interval 7 (xid=0x734e0a7e)
Oct 2 15:05:14 soolean dhclient[64833]: Listening on LPF/p4p2/68:05:ca:1d:e9:b5
Oct 2 15:05:14 soolean dhclient[64833]: Sending on LPF/p4p2/68:05:ca:1d:e9:b5
Oct 2 15:05:14 soolean dhclient[64833]: Sending on Socket/fallback
Oct 2 15:05:18 soolean dhclient[64833]: DHCPDISCOVER on p4p2 to 255.255.255.255 port 67 interval 6 (xid=0x5d266c7a)
Oct 2 15:05:21 soolean dhclient[64832]: DHCPDISCOVER on em1 to 255.255.255.255 port 67 interval 13 (xid=0x734e0a7e)
Oct 2 15:05:24 soolean dhclient[64833]: DHCPDISCOVER on p4p2 to 255.255.255.255 port 67 interval 10 (xid=0x5d266c7a)
Oct 2 15:05:34 soolean dhclient[64833]: DHCPDISCOVER on p4p2 to 255.255.255.255 port 67 interval 11 (xid=0x5d266c7a)
Oct 2 15:05:34 soolean dhclient[64832]: DHCPDISCOVER on em1 to 255.255.255.255 port 67 interval 14 (xid=0x734e0a7e)
Oct 2 15:05:45 soolean dhclient[64833]: DHCPDISCOVER on p4p2 to 255.255.255.255 port 67 interval 13 (xid=0x5d266c7a)
Oct 2 15:05:48 soolean dhclient[64832]: DHCPDISCOVER on em1 to 255.255.255.255 port 67 interval 8 (xid=0x734e0a7e)
Oct 2 15:05:56 soolean dhclient[64832]: DHCPDISCOVER on em1 to 255.255.255.255 port 67 interval 12 (xid=0x734e0a7e)
Oct 2 15:05:58 soolean dhclient[64833]: DHCPDISCOVER on p4p2 to 255.255.255.255 port 67 interval 11 (xid=0x5d266c7a)
Oct 2 15:05:59 soolean NetworkManager[4098]: <warn> (em1): DHCPv4 request timed out.
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> (em1): canceled DHCP transaction, DHCP client pid 64832
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (em1) Stage 4 of 5 (IP4 Configure Timeout) scheduled...
Oct 2 15:05:59 soolean NetworkManager[4098]: <warn> (p4p2): DHCPv4 request timed out.
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> (p4p2): canceled DHCP transaction, DHCP client pid 64833
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 4 of 5 (IP4 Configure Timeout) scheduled...
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (em1) Stage 4 of 5 (IP4 Configure Timeout) started...
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (em1) Stage 5 of 5 (IP Configure Commit) scheduled...
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (em1) Stage 4 of 5 (IP4 Configure Timeout) complete.
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 4 of 5 (IP4 Configure Timeout) started...
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 5 of 5 (IP Configure Commit) scheduled...
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 4 of 5 (IP4 Configure Timeout) complete.
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (em1) Stage 5 of 5 (IP Configure Commit) started...
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (em1) Stage 5 of 5 (IP Configure Commit) failed (no IP configuration found)
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> (em1): device state change: ip-config -> failed (reason 'ip-config-unavailable') [7 9 5]
Oct 2 15:05:59 soolean NetworkManager[4098]: <warn> Activation (em1) failed.
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (em1) Stage 5 of 5 (IP Configure Commit) complete.
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 5 of 5 (IP Configure Commit) started...
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 5 of 5 (IP Configure Commit) failed (no IP configuration found)
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> (p4p2): device state change: ip-config -> failed (reason 'ip-config-unavailable') [7 9 5]
Oct 2 15:05:59 soolean NetworkManager[4098]: <warn> Activation (p4p2) failed.
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 5 of 5 (IP Configure Commit) complete.
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> (em1): device state change: failed -> disconnected (reason 'none') [9 3 0]
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> (em1): deactivating device (reason 'none') [0]
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> (p4p2): device state change: failed -> disconnected (reason 'none') [9 3 0]
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> (p4p2): deactivating device (reason 'none') [0]
I checked. I gave fixed ip but NetworkManager was active, I turned it off. Secondly, the em1 network interface was trying to get automatic ip, I also turned it off.
Now the log does not show the same error. I will follow a little more and edit the topic accordingly
OS: Oracle Linux Server release 6.6
Code:Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Auto-activating connection 'Auto em1'.
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) starting connection 'Auto em1'
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> (em1): device state change: disconnected -> prepare (reason 'none') [3 4 0]
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) Stage 1 of 5 (Device Prepare) scheduled...
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Auto-activating connection 'Auto p4p2'.
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) starting connection 'Auto p4p2'
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> (p4p2): device state change: disconnected -> prepare (reason 'none') [3 4 0]
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 1 of 5 (Device Prepare) scheduled...
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) Stage 1 of 5 (Device Prepare) started...
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) Stage 2 of 5 (Device Configure) scheduled...
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) Stage 1 of 5 (Device Prepare) complete.
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 1 of 5 (Device Prepare) started...
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 2 of 5 (Device Configure) scheduled...
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 1 of 5 (Device Prepare) complete.
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) Stage 2 of 5 (Device Configure) starting...
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> (em1): device state change: prepare -> config (reason 'none') [4 5 0]
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) Stage 2 of 5 (Device Configure) successful.
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) Stage 3 of 5 (IP Configure Start) scheduled.
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) Stage 2 of 5 (Device Configure) complete.
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 2 of 5 (Device Configure) starting...
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> (p4p2): device state change: prepare -> config (reason 'none') [4 5 0]
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 2 of 5 (Device Configure) successful.
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 3 of 5 (IP Configure Start) scheduled.
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 2 of 5 (Device Configure) complete.
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) Stage 3 of 5 (IP Configure Start) started...
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> (em1): device state change: config -> ip-config (reason 'none') [5 7 0]
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) Beginning DHCPv4 transaction
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> dhclient started with pid 64425
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) DHCPv4 will time out in 45 seconds
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (em1) Stage 3 of 5 (IP Configure Start) complete.
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 3 of 5 (IP Configure Start) started...
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> (p4p2): device state change: config -> ip-config (reason 'none') [5 7 0]
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) Beginning DHCPv4 transaction
Oct 2 15:04:25 soolean dhclient[64425]: Internet Systems Consortium DHCP Client 4.1.1-P1
Oct 2 15:04:25 soolean dhclient[64425]: Copyright 2004-2010 Internet Systems Consortium.
Oct 2 15:04:25 soolean dhclient[64425]: All rights reserved.
Oct 2 15:04:25 soolean dhclient[64425]: For info, please visit https://www.isc.org/software/dhcp/
Oct 2 15:04:25 soolean dhclient[64425]:
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> dhclient started with pid 64426
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) DHCPv4 will time out in 45 seconds
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 3 of 5 (IP Configure Start) complete.
Oct 2 15:04:25 soolean dhclient[64426]: Internet Systems Consortium DHCP Client 4.1.1-P1
Oct 2 15:04:25 soolean dhclient[64426]: Copyright 2004-2010 Internet Systems Consortium.
Oct 2 15:04:25 soolean dhclient[64426]: All rights reserved.
Oct 2 15:04:25 soolean dhclient[64426]: For info, please visit https://www.isc.org/software/dhcp/
Oct 2 15:04:25 soolean dhclient[64426]:
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> (em1): DHCPv4 state changed nbi -> preinit
Oct 2 15:04:25 soolean NetworkManager[4098]: <info> (p4p2): DHCPv4 state changed nbi -> preinit
Oct 2 15:04:25 soolean dhclient[64425]: Listening on LPF/em1/20:47:47:88:b6:9c
Oct 2 15:04:25 soolean dhclient[64426]: Listening on LPF/p4p2/68:05:ca:1d:e9:b5
Oct 2 15:04:25 soolean dhclient[64425]: Sending on LPF/em1/20:47:47:88:b6:9c
Oct 2 15:04:25 soolean dhclient[64426]: Sending on LPF/p4p2/68:05:ca:1d:e9:b5
Oct 2 15:04:25 soolean dhclient[64425]: Sending on Socket/fallback
Oct 2 15:04:25 soolean dhclient[64426]: Sending on Socket/fallback
Oct 2 15:04:29 soolean dhclient[64425]: DHCPDISCOVER on em1 to 255.255.255.255 port 67 interval 8 (xid=0x44e64ee2)
Oct 2 15:04:29 soolean dhclient[64426]: DHCPDISCOVER on p4p2 to 255.255.255.255 port 67 interval 5 (xid=0x2e01dc1f)
Oct 2 15:04:34 soolean dhclient[64426]: DHCPDISCOVER on p4p2 to 255.255.255.255 port 67 interval 11 (xid=0x2e01dc1f)
Oct 2 15:04:37 soolean dhclient[64425]: DHCPDISCOVER on em1 to 255.255.255.255 port 67 interval 20 (xid=0x44e64ee2)
Oct 2 15:04:45 soolean dhclient[64426]: DHCPDISCOVER on p4p2 to 255.255.255.255 port 67 interval 21 (xid=0x2e01dc1f)
Oct 2 15:04:57 soolean dhclient[64425]: DHCPDISCOVER on em1 to 255.255.255.255 port 67 interval 19 (xid=0x44e64ee2)
Oct 2 15:05:01 soolean abrt: detected unhandled Python exception in '/usr/bin/barman'
Oct 2 15:05:01 soolean abrtd: New client connected
Oct 2 15:05:06 soolean dhclient[64426]: DHCPDISCOVER on p4p2 to 255.255.255.255 port 67 interval 19 (xid=0x2e01dc1f)
Oct 2 15:05:10 soolean NetworkManager[4098]: <warn> (em1): DHCPv4 request timed out.
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> (em1): canceled DHCP transaction, DHCP client pid 64425
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (em1) Stage 4 of 5 (IP4 Configure Timeout) scheduled...
Oct 2 15:05:10 soolean NetworkManager[4098]: <warn> (p4p2): DHCPv4 request timed out.
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> (p4p2): canceled DHCP transaction, DHCP client pid 64426
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 4 of 5 (IP4 Configure Timeout) scheduled...
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (em1) Stage 4 of 5 (IP4 Configure Timeout) started...
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (em1) Stage 5 of 5 (IP Configure Commit) scheduled...
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (em1) Stage 4 of 5 (IP4 Configure Timeout) complete.
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 4 of 5 (IP4 Configure Timeout) started...
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 5 of 5 (IP Configure Commit) scheduled...
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 4 of 5 (IP4 Configure Timeout) complete.
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (em1) Stage 5 of 5 (IP Configure Commit) started...
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (em1) Stage 5 of 5 (IP Configure Commit) failed (no IP configuration found)
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> (em1): device state change: ip-config -> failed (reason 'ip-config-unavailable') [7 9 5]
Oct 2 15:05:10 soolean NetworkManager[4098]: <warn> Activation (em1) failed.
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (em1) Stage 5 of 5 (IP Configure Commit) complete.
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 5 of 5 (IP Configure Commit) started...
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 5 of 5 (IP Configure Commit) failed (no IP configuration found)
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> (p4p2): device state change: ip-config -> failed (reason 'ip-config-unavailable') [7 9 5]
Oct 2 15:05:10 soolean NetworkManager[4098]: <warn> Activation (p4p2) failed.
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 5 of 5 (IP Configure Commit) complete.
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> (em1): device state change: failed -> disconnected (reason 'none') [9 3 0]
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> (em1): deactivating device (reason 'none') [0]
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> (p4p2): device state change: failed -> disconnected (reason 'none') [9 3 0]
Oct 2 15:05:10 soolean NetworkManager[4098]: <info> (p4p2): deactivating device (reason 'none') [0]
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Auto-activating connection 'Auto em1'.
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) starting connection 'Auto em1'
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> (em1): device state change: disconnected -> prepare (reason 'none') [3 4 0]
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) Stage 1 of 5 (Device Prepare) scheduled...
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Auto-activating connection 'Auto p4p2'.
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) starting connection 'Auto p4p2'
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> (p4p2): device state change: disconnected -> prepare (reason 'none') [3 4 0]
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 1 of 5 (Device Prepare) scheduled...
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) Stage 1 of 5 (Device Prepare) started...
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) Stage 2 of 5 (Device Configure) scheduled...
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) Stage 1 of 5 (Device Prepare) complete.
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 1 of 5 (Device Prepare) started...
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 2 of 5 (Device Configure) scheduled...
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 1 of 5 (Device Prepare) complete.
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) Stage 2 of 5 (Device Configure) starting...
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> (em1): device state change: prepare -> config (reason 'none') [4 5 0]
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) Stage 2 of 5 (Device Configure) successful.
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) Stage 3 of 5 (IP Configure Start) scheduled.
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) Stage 2 of 5 (Device Configure) complete.
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 2 of 5 (Device Configure) starting...
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> (p4p2): device state change: prepare -> config (reason 'none') [4 5 0]
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 2 of 5 (Device Configure) successful.
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 3 of 5 (IP Configure Start) scheduled.
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 2 of 5 (Device Configure) complete.
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) Stage 3 of 5 (IP Configure Start) started...
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> (em1): device state change: config -> ip-config (reason 'none') [5 7 0]
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) Beginning DHCPv4 transaction
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> dhclient started with pid 64832
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) DHCPv4 will time out in 45 seconds
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (em1) Stage 3 of 5 (IP Configure Start) complete.
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 3 of 5 (IP Configure Start) started...
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> (p4p2): device state change: config -> ip-config (reason 'none') [5 7 0]
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) Beginning DHCPv4 transaction
Oct 2 15:05:14 soolean dhclient[64832]: Internet Systems Consortium DHCP Client 4.1.1-P1
Oct 2 15:05:14 soolean dhclient[64832]: Copyright 2004-2010 Internet Systems Consortium.
Oct 2 15:05:14 soolean dhclient[64832]: All rights reserved.
Oct 2 15:05:14 soolean dhclient[64832]: For info, please visit https://www.isc.org/software/dhcp/
Oct 2 15:05:14 soolean dhclient[64832]:
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> dhclient started with pid 64833
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) DHCPv4 will time out in 45 seconds
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 3 of 5 (IP Configure Start) complete.
Oct 2 15:05:14 soolean dhclient[64833]: Internet Systems Consortium DHCP Client 4.1.1-P1
Oct 2 15:05:14 soolean dhclient[64833]: Copyright 2004-2010 Internet Systems Consortium.
Oct 2 15:05:14 soolean dhclient[64833]: All rights reserved.
Oct 2 15:05:14 soolean dhclient[64833]: For info, please visit https://www.isc.org/software/dhcp/
Oct 2 15:05:14 soolean dhclient[64833]:
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> (em1): DHCPv4 state changed nbi -> preinit
Oct 2 15:05:14 soolean NetworkManager[4098]: <info> (p4p2): DHCPv4 state changed nbi -> preinit
Oct 2 15:05:14 soolean dhclient[64832]: Listening on LPF/em1/20:47:47:88:b6:9c
Oct 2 15:05:14 soolean dhclient[64832]: Sending on LPF/em1/20:47:47:88:b6:9c
Oct 2 15:05:14 soolean dhclient[64832]: Sending on Socket/fallback
Oct 2 15:05:14 soolean dhclient[64832]: DHCPDISCOVER on em1 to 255.255.255.255 port 67 interval 7 (xid=0x734e0a7e)
Oct 2 15:05:14 soolean dhclient[64833]: Listening on LPF/p4p2/68:05:ca:1d:e9:b5
Oct 2 15:05:14 soolean dhclient[64833]: Sending on LPF/p4p2/68:05:ca:1d:e9:b5
Oct 2 15:05:14 soolean dhclient[64833]: Sending on Socket/fallback
Oct 2 15:05:18 soolean dhclient[64833]: DHCPDISCOVER on p4p2 to 255.255.255.255 port 67 interval 6 (xid=0x5d266c7a)
Oct 2 15:05:21 soolean dhclient[64832]: DHCPDISCOVER on em1 to 255.255.255.255 port 67 interval 13 (xid=0x734e0a7e)
Oct 2 15:05:24 soolean dhclient[64833]: DHCPDISCOVER on p4p2 to 255.255.255.255 port 67 interval 10 (xid=0x5d266c7a)
Oct 2 15:05:34 soolean dhclient[64833]: DHCPDISCOVER on p4p2 to 255.255.255.255 port 67 interval 11 (xid=0x5d266c7a)
Oct 2 15:05:34 soolean dhclient[64832]: DHCPDISCOVER on em1 to 255.255.255.255 port 67 interval 14 (xid=0x734e0a7e)
Oct 2 15:05:45 soolean dhclient[64833]: DHCPDISCOVER on p4p2 to 255.255.255.255 port 67 interval 13 (xid=0x5d266c7a)
Oct 2 15:05:48 soolean dhclient[64832]: DHCPDISCOVER on em1 to 255.255.255.255 port 67 interval 8 (xid=0x734e0a7e)
Oct 2 15:05:56 soolean dhclient[64832]: DHCPDISCOVER on em1 to 255.255.255.255 port 67 interval 12 (xid=0x734e0a7e)
Oct 2 15:05:58 soolean dhclient[64833]: DHCPDISCOVER on p4p2 to 255.255.255.255 port 67 interval 11 (xid=0x5d266c7a)
Oct 2 15:05:59 soolean NetworkManager[4098]: <warn> (em1): DHCPv4 request timed out.
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> (em1): canceled DHCP transaction, DHCP client pid 64832
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (em1) Stage 4 of 5 (IP4 Configure Timeout) scheduled...
Oct 2 15:05:59 soolean NetworkManager[4098]: <warn> (p4p2): DHCPv4 request timed out.
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> (p4p2): canceled DHCP transaction, DHCP client pid 64833
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 4 of 5 (IP4 Configure Timeout) scheduled...
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (em1) Stage 4 of 5 (IP4 Configure Timeout) started...
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (em1) Stage 5 of 5 (IP Configure Commit) scheduled...
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (em1) Stage 4 of 5 (IP4 Configure Timeout) complete.
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 4 of 5 (IP4 Configure Timeout) started...
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 5 of 5 (IP Configure Commit) scheduled...
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 4 of 5 (IP4 Configure Timeout) complete.
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (em1) Stage 5 of 5 (IP Configure Commit) started...
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (em1) Stage 5 of 5 (IP Configure Commit) failed (no IP configuration found)
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> (em1): device state change: ip-config -> failed (reason 'ip-config-unavailable') [7 9 5]
Oct 2 15:05:59 soolean NetworkManager[4098]: <warn> Activation (em1) failed.
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (em1) Stage 5 of 5 (IP Configure Commit) complete.
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 5 of 5 (IP Configure Commit) started...
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 5 of 5 (IP Configure Commit) failed (no IP configuration found)
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> (p4p2): device state change: ip-config -> failed (reason 'ip-config-unavailable') [7 9 5]
Oct 2 15:05:59 soolean NetworkManager[4098]: <warn> Activation (p4p2) failed.
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> Activation (p4p2) Stage 5 of 5 (IP Configure Commit) complete.
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> (em1): device state change: failed -> disconnected (reason 'none') [9 3 0]
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> (em1): deactivating device (reason 'none') [0]
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> (p4p2): device state change: failed -> disconnected (reason 'none') [9 3 0]
Oct 2 15:05:59 soolean NetworkManager[4098]: <info> (p4p2): deactivating device (reason 'none') [0]
I checked. I gave fixed ip but NetworkManager was active, I turned it off. Secondly, the em1 network interface was trying to get automatic ip, I also turned it off.
Now the log does not show the same error. I will follow a little more and edit the topic accordingly