Hello,
I just installed CentOS 7 (Server with GUI) and guess what I could install Virtual Box Guest additions without installing any extra package/software which is great news !
Now bad news or not so great news.
My Host OS is Windows 10, Virtual Box is the virtualization software. CentOS7-1 is the name of Virtual machine I have created and agent1 is its hostname.
The issue is ,I am unable to connect to outside world, When I on CentOS7 VM I get error message like Connection Failed something on these lines.
Here is the output from /var/log/messages i.e from server itself.
[root@agent1 ~]# cat /var/log/messages |grep -i network
Jun 24 00:49:42 agent1 kernel: drop_monitor: Initializing network drop monitor service
Jun 24 00:49:42 agent1 kernel: e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI
Jun 24 00:49:43 agent1 kernel: e1000 0000:00:03.0 eth0: Intel(R) PRO/1000 Network Connection
Jun 24 00:50:13 agent1 systemd: Starting Import network configuration from initramfs...
Jun 24 00:50:13 agent1 systemd: Started Import network configuration from initramfs.
Jun 24 00:50:18 agent1 avahi-daemon[656]: Network interface enumeration completed.
Jun 24 00:50:30 agent1 systemd: Starting Network Manager...
Jun 24 00:50:31 agent1 NetworkManager[802]: <info> NetworkManager (version 1.0.6-27.el7) is starting...
Jun 24 00:50:31 agent1 NetworkManager[802]: <info> Read config: /etc/NetworkManager/NetworkManager.conf and conf.d: 10-ibft-plugin.conf
Jun 24 00:50:31 agent1 systemd: Started Network Manager.
Jun 24 00:50:31 agent1 systemd: Starting Network Manager Wait Online...
Jun 24 00:50:31 agent1 NetworkManager[802]: <info> VPN: loaded org.freedesktop.NetworkManager.libreswan
Jun 24 00:50:31 agent1 NetworkManager[802]: <info> Loaded settings plugin ifcfg-rh: (c) 2007 - 2015 Red Hat, Inc. To report bugs please use the NetworkManager mailing list. (/usr/lib64/NetworkManager/libnm-settings-plugin-ifcfg-rh.so)
Jun 24 00:50:31 agent1 NetworkManager[802]: <info> Loaded settings plugin iBFT: (c) 2014 Red Hat, Inc. To report bugs please use the NetworkManager mailing list. (/usr/lib64NetworkManager/libnm-settings-plugin-ibft.so)
Jun 24 00:50:31 agent1 NetworkManager[802]: <info> Loaded settings plugin keyfile: (c) 2007 - 2015 Red Hat, Inc. To report bugs please use the NetworkManager mailing list.
Jun 24 00:50:31 agent1 NetworkManager[802]: <info> ifcfg-rh: new connection /etc/sysconfig/network-scripts/ifcfg-enp0s3 (9b49c161-f7b4-418d-ae5f-a4fae294d302,"enp0s3")
Jun 24 00:50:32 agent1 NetworkManager[802]: <info> monitoring kernel firmware directory '/lib/firmware'.
Jun 24 00:50:32 agent1 NetworkManager[802]: <info> Loaded device plugin: NMVxlanFactory (internal)
Jun 24 00:50:32 agent1 NetworkManager[802]: <info> Loaded device plugin: NMVlanFactory (internal)
Jun 24 00:50:32 agent1 NetworkManager[802]: <info> Loaded device plugin: NMVethFactory (internal)
Jun 24 00:50:32 agent1 NetworkManager[802]: <info> Loaded device plugin: NMTunFactory (internal)
Jun 24 00:50:32 agent1 NetworkManager[802]: <info> Loaded device plugin: NMMacvlanFactory (internal)
Jun 24 00:50:32 agent1 NetworkManager[802]: <info> Loaded device plugin: NMInfinibandFactory (internal)
Jun 24 00:50:32 agent1 NetworkManager[802]: <info> Loaded device plugin: NMGreFactory (internal)
Jun 24 00:50:32 agent1 NetworkManager[802]: <info> Loaded device plugin: NMEthernetFactory (internal)
Jun 24 00:50:32 agent1 NetworkManager[802]: <info> Loaded device plugin: NMBridgeFactory (internal)
Jun 24 00:50:32 agent1 NetworkManager[802]: <info> Loaded device plugin: NMBondFactory (internal)
Jun 24 00:50:32 agent1 NetworkManager[802]: <info> Loaded device plugin: NMAtmManager (/usr/lib64/NetworkManager/libnm-device-plugin-adsl.so)
Jun 24 00:50:32 agent1 NetworkManager[802]: <info> Loaded device plugin: NMTeamFactory (/usr/lib64/NetworkManager/libnm-device-plugin-team.so)
Jun 24 00:50:32 agent1 NetworkManager[802]: <info> WiFi enabled by radio killswitch; enabled by state file
Jun 24 00:50:32 agent1 NetworkManager[802]: <info> WWAN enabled by radio killswitch; enabled by state file
Jun 24 00:50:32 agent1 NetworkManager[802]: <info> WiMAX enabled by radio killswitch; enabled by state file
Jun 24 00:50:32 agent1 NetworkManager[802]: <info> Networking is enabled by state file
Jun 24 00:50:32 agent1 NetworkManager[802]: <info> (enp0s3): new Ethernet device (carrier: OFF, driver: 'e1000', ifindex: 2)
Jun 24 00:50:32 agent1 NetworkManager[802]: <info> (enp0s3): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Jun 24 00:50:32 agent1 NetworkManager[802]: <info> (enp0s3): link connected
Jun 24 00:50:32 agent1 NetworkManager[802]: <info> (lo): link connected
Jun 24 00:50:32 agent1 NetworkManager[802]: <info> (lo): new Generic device (carrier: ON, driver: 'unknown', ifindex: 1)
Jun 24 00:50:32 agent1 NetworkManager[802]: <info> (enp0s3): device state change: unavailable -> disconnected (reason 'none') [20 30 0]
Jun 24 00:50:32 agent1 NetworkManager[802]: <info> wpa_supplicant running
Jun 24 00:50:37 agent1 NetworkManager[802]: <info> startup complete
Jun 24 00:50:38 agent1 systemd: Started Network Manager Wait Online.
Jun 24 00:50:38 agent1 systemd: Starting LSB: Bring up/down networking...
Jun 24 00:50:38 agent1 network: Bringing up loopback interface: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo'
Jun 24 00:50:38 agent1 network: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo'
Jun 24 00:50:38 agent1 network: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo'
Jun 24 00:50:38 agent1 network: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo'
Jun 24 00:50:38 agent1 network: [ OK ]
Jun 24 00:50:38 agent1 systemd: Started LSB: Bring up/down networking.
Jun 24 00:50:38 agent1 systemd: Reached target Network.
Jun 24 00:50:38 agent1 systemd: Starting Network.
Jun 24 00:50:38 agent1 systemd: Reached target Network is Online.
Jun 24 00:50:38 agent1 systemd: Starting Network is Online.
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> (virbr0): new Bridge device (carrier: OFF, driver: 'bridge', ifindex: 3)
Jun 24 00:50:45 agent1 NetworkManager[802]: <warn> (virbr0-nic): failed to find device 4 'virbr0-nic' with udev
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> (virbr0-nic): link connected
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> (virbr0-nic): new Ethernet device (carrier: ON, driver: 'tun', ifindex: 4)
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> (virbr0): bridge port virbr0-nic was attached
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> (virbr0-nic): enslaved to virbr0
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> (virbr0-nic): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> ifcfg-rh: add connection in-memory (bb6b0a9f-fdeb-4e97-9db8-61cc0e77a2fd,"Wired connection 1")
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> (virbr0-nic): created default wired connection 'Wired connection 1'
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> (virbr0-nic): device state change: unavailable -> disconnected (reason 'none') [20 30 0]
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> Auto-activating connection 'Wired connection 1'.
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> (virbr0-nic): Activation: starting connection 'Wired connection 1' (bb6b0a9f-fdeb-4e97-9db8-61cc0e77a2fd)
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> (virbr0-nic): device state change: disconnected -> prepare (reason 'none') [30 40 0]
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> NetworkManager state is now CONNECTING
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> (virbr0-nic): device state change: prepare -> config (reason 'none') [40 50 0]
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> (virbr0-nic): device state change: config -> ip-config (reason 'none') [50 70 0]
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> Activation (virbr0-nic) Beginning DHCPv4 transaction (timeout in 45 seconds)
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> dhclient started with pid 3807
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> (virbr0): device state change: unmanaged -> unavailable (reason 'connection-assumed') [10 20 41]
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> ifcfg-rh: add connection in-memory (3616b8dd-bbdc-47ca-b184-164dc4c05754,"virbr0")
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> (virbr0): device state change: unavailable -> disconnected (reason 'connection-assumed') [20 30 41]
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> (virbr0): Activation: starting connection 'virbr0' (3616b8dd-bbdc-47ca-b184-164dc4c05754)
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> (virbr0): device state change: disconnected -> prepare (reason 'none') [30 40 0]
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> (virbr0): device state change: prepare -> config (reason 'none') [40 50 0]
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> (virbr0-nic): device state change: ip-config -> secondaries (reason 'none') [70 90 0]
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> (virbr0): device state change: config -> ip-config (reason 'none') [50 70 0]
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> (virbr0-nic): device state change: secondaries -> activated (reason 'none') [90 100 0]
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> NetworkManager state is now CONNECTED_LOCAL
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> (virbr0-nic): Activation: successful, device activated.
Jun 24 00:50:45 agent1 systemd: Starting Network Manager Script Dispatcher Service...
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> (virbr0): device state change: ip-config -> ip-check (reason 'none') [70 80 0]
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> (virbr0): device state change: ip-check -> secondaries (reason 'none') [80 90 0]
Jun 24 00:50:45 agent1 NetworkManager[802]: <info> (virbr0): device state change: secondaries -> activated (reason 'none') [90 100 0]
Jun 24 00:50:45 agent1 dhclient[3807]: receive_packet failed on virbr0-nic: Network is down
Jun 24 00:50:45 agent1 systemd: Started Network Manager Script Dispatcher Service.
Jun 24 00:50:46 agent1 NetworkManager[802]: <info> (virbr0): Activation: successful, device activated.
Jun 24 00:50:46 agent1 NetworkManager[802]: <info> (virbr0-nic): link disconnected (deferring action for 4 seconds)
Jun 24 00:50:49 agent1 dracut: *** Including module: network ***
Jun 24 00:50:49 agent1 NetworkManager[802]: <info> (virbr0-nic): link disconnected (calling deferred action)
Jun 24 00:50:50 agent1 dhclient[3807]: send_packet: Network is down
Jun 24 00:51:04 agent1 dhclient[3807]: send_packet: Network is down
Jun 24 00:51:21 agent1 dhclient[3807]: send_packet: Network is down
Jun 24 00:51:30 agent1 NetworkManager[802]: <warn> (virbr0-nic): DHCPv4 request timed out.
Jun 24 00:51:30 agent1 NetworkManager[802]: <info> (virbr0-nic): DHCPv4 state changed unknown -> timeout
Jun 24 00:51:31 agent1 NetworkManager[802]: <info> (virbr0-nic): canceled DHCP transaction, DHCP client pid 3807
Jun 24 00:51:31 agent1 NetworkManager[802]: <info> (virbr0-nic): DHCPv4 state changed timeout -> done
Jun 24 00:51:31 agent1 NetworkManager[802]: <info> (virbr0-nic): device state change: activated -> failed (reason 'ip-config-unavailable') [100 120 5]
Jun 24 00:51:31 agent1 NetworkManager[802]: <info> (virbr0): detached bridge port virbr0-nic
Jun 24 00:51:31 agent1 NetworkManager[802]: <info> (virbr0-nic): released from master virbr0
Jun 24 00:51:31 agent1 NetworkManager[802]: <warn> (virbr0-nic): Activation: failed for connection 'Wired connection 1'
Jun 24 00:51:31 agent1 NetworkManager[802]: <info> (virbr0-nic): device state change: failed -> disconnected (reason 'none') [120 30 0]
Jun 24 00:51:31 agent1 systemd: Starting Network Manager Script Dispatcher Service...
Jun 24 00:51:31 agent1 systemd: Started Network Manager Script Dispatcher Service.
Jun 24 00:55:20 agent1 NetworkManager[802]: <info> (enp0s3): link disconnected
Jun 24 00:55:20 agent1 NetworkManager[802]: <info> (enp0s3): device state change: disconnected -> unavailable (reason 'carrier-changed') [30 20 40]
Jun 24 00:55:25 agent1 NetworkManager[802]: <info> (enp0s3): link connected
Jun 24 00:55:25 agent1 NetworkManager[802]: <info> (enp0s3): device state change: unavailable -> disconnected (reason 'carrier-changed') [20 30 40]
Jun 24 03:30:21 agent1 NetworkManager[802]: <info> (enp0s3): link disconnected
Jun 24 03:30:21 agent1 NetworkManager[802]: <info> (enp0s3): device state change: disconnected -> unavailable (reason 'carrier-changed') [30 20 40]
Jun 24 03:30:27 agent1 NetworkManager[802]: <info> (enp0s3): link connected
Jun 24 03:30:27 agent1 NetworkManager[802]: <info> (enp0s3): device state change: unavailable -> disconnected (reason 'carrier-changed') [20 30 40]
Jun 24 04:20:01 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.settings.modify.hostname: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 04:20:01 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.settings.modify.own: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 04:20:01 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.settings.modify.system: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 04:20:01 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.wifi.share.open: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 04:20:01 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.wifi.share.protected: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 04:20:01 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.network-control: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 05:46:58 agent1 dracut: *** Including module: network ***
Jun 24 05:47:21 agent1 NetworkManager[802]: <info> (enp0s3): link disconnected
Jun 24 05:47:21 agent1 NetworkManager[802]: <info> (enp0s3): device state change: disconnected -> unavailable (reason 'carrier-changed') [30 20 40]
Jun 24 05:47:27 agent1 NetworkManager[802]: <info> (enp0s3): link connected
Jun 24 05:47:27 agent1 NetworkManager[802]: <info> (enp0s3): device state change: unavailable -> disconnected (reason 'carrier-changed') [20 30 40]
Jun 24 23:49:39 agent1 systemd: Stopped target Network is Online.
Jun 24 23:49:39 agent1 systemd: Stopping Network is Online.
Jun 24 23:49:39 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.settings.modify.hostname: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 23:49:39 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.settings.modify.own: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 23:49:39 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.settings.modify.system: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 23:49:39 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.wifi.share.open: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 23:49:39 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.wifi.share.protected: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 23:49:39 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.network-control: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 23:49:39 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.enable-disable-wimax: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 23:49:39 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.enable-disable-wwan: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 23:49:39 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.enable-disable-wifi: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 23:49:39 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.sleep-wake: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 23:49:39 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.enable-disable-network: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 23:49:39 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.settings.modify.hostname: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 23:49:39 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.settings.modify.own: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 23:49:39 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.settings.modify.system: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 23:49:39 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.wifi.share.open: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 23:49:39 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.wifi.share.protected: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 23:49:39 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.network-control: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 23:49:39 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.enable-disable-wimax: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 23:49:39 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.enable-disable-wwan: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 23:49:39 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.enable-disable-wifi: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 23:49:39 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.sleep-wake: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 23:49:39 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.enable-disable-network: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 23:49:39 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.wifi.share.open: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 23:49:39 agent1 NetworkManager[802]: <warn> error requesting auth for org.freedesktop.NetworkManager.wifi.share.protected: (0) Authorization check failed: GDBus.Error:org.freedesktop.DBus.Error.NoReply: Message did not receive a reply (timeout by message bus)
Jun 24 23:54:44 agent1 kernel: drop_monitor: Initializing network drop monitor service
Jun 24 23:54:44 agent1 kernel: e1000: Intel(R) PRO/1000 Network Driver - version 7.3.21-k8-NAPI
Jun 24 23:54:45 agent1 kernel: e1000 0000:00:03.0 eth0: Intel(R) PRO/1000 Network Connection
Jun 24 23:55:00 agent1 systemd: Starting Import network configuration from initramfs...
Jun 24 23:55:01 agent1 systemd: Started Import network configuration from initramfs.
Jun 24 23:55:07 agent1 avahi-daemon[671]: Network interface enumeration completed.
Jun 24 23:55:17 agent1 systemd: Starting Network Manager...
Jun 24 23:55:18 agent1 NetworkManager[849]: <info> NetworkManager (version 1.0.6-27.el7) is starting...
Jun 24 23:55:18 agent1 NetworkManager[849]: <info> Read config: /etc/NetworkManager/NetworkManager.conf and conf.d: 10-ibft-plugin.conf
Jun 24 23:55:18 agent1 systemd: Started Network Manager.
Jun 24 23:55:18 agent1 systemd: Starting Network Manager Wait Online...
Jun 24 23:55:18 agent1 NetworkManager[849]: <info> VPN: loaded org.freedesktop.NetworkManager.libreswan
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> Loaded settings plugin ifcfg-rh: (c) 2007 - 2015 Red Hat, Inc. To report bugs please use the NetworkManager mailing list. (/usr/lib64/NetworkManager/libnm-settings-plugin-ifcfg-rh.so)
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> Loaded settings plugin iBFT: (c) 2014 Red Hat, Inc. To report bugs please use the NetworkManager mailing list. (/usr/lib64NetworkManager/libnm-settings-plugin-ibft.so)
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> Loaded settings plugin keyfile: (c) 2007 - 2015 Red Hat, Inc. To report bugs please use the NetworkManager mailing list.
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> ifcfg-rh: new connection /etc/sysconfig/network-scripts/ifcfg-enp0s3 (9b49c161-f7b4-418d-ae5f-a4fae294d302,"enp0s3")
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> monitoring kernel firmware directory '/lib/firmware'.
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> Loaded device plugin: NMVxlanFactory (internal)
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> Loaded device plugin: NMVlanFactory (internal)
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> Loaded device plugin: NMVethFactory (internal)
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> Loaded device plugin: NMTunFactory (internal)
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> Loaded device plugin: NMMacvlanFactory (internal)
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> Loaded device plugin: NMInfinibandFactory (internal)
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> Loaded device plugin: NMGreFactory (internal)
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> Loaded device plugin: NMEthernetFactory (internal)
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> Loaded device plugin: NMBridgeFactory (internal)
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> Loaded device plugin: NMBondFactory (internal)
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> Loaded device plugin: NMAtmManager (/usr/lib64/NetworkManager/libnm-device-plugin-adsl.so)
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> Loaded device plugin: NMTeamFactory (/usr/lib64/NetworkManager/libnm-device-plugin-team.so)
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> WiFi enabled by radio killswitch; enabled by state file
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> WWAN enabled by radio killswitch; enabled by state file
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> WiMAX enabled by radio killswitch; enabled by state file
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> Networking is enabled by state file
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> (enp0s3): new Ethernet device (carrier: OFF, driver: 'e1000', ifindex: 2)
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> (enp0s3): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> (enp0s3): link connected
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> (lo): link connected
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> (lo): new Generic device (carrier: ON, driver: 'unknown', ifindex: 1)
Jun 24 23:55:19 agent1 NetworkManager[849]: <info> (enp0s3): device state change: unavailable -> disconnected (reason 'none') [20 30 0]
Jun 24 23:55:20 agent1 NetworkManager[849]: <info> wpa_supplicant running
Jun 24 23:55:24 agent1 NetworkManager[849]: <info> startup complete
Jun 24 23:55:24 agent1 systemd: Started Network Manager Wait Online.
Jun 24 23:55:25 agent1 systemd: Starting LSB: Bring up/down networking...
Jun 24 23:55:25 agent1 network: Bringing up loopback interface: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo'
Jun 24 23:55:25 agent1 network: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo'
Jun 24 23:55:25 agent1 network: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo'
Jun 24 23:55:25 agent1 network: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo'
Jun 24 23:55:25 agent1 network: [ OK ]
Jun 24 23:55:25 agent1 systemd: Started LSB: Bring up/down networking.
Jun 24 23:55:25 agent1 systemd: Reached target Network.
Jun 24 23:55:25 agent1 systemd: Starting Network.
Jun 24 23:55:25 agent1 systemd: Reached target Network is Online.
Jun 24 23:55:25 agent1 systemd: Starting Network is Online.
Jun 24 23:55:34 agent1 NetworkManager[849]: <info> (virbr0): new Bridge device (carrier: OFF, driver: 'bridge', ifindex: 3)
Jun 24 23:55:35 agent1 NetworkManager[849]: <warn> (virbr0-nic): failed to find device 4 'virbr0-nic' with udev
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> (virbr0-nic): link connected
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> (virbr0-nic): new Ethernet device (carrier: ON, driver: 'tun', ifindex: 4)
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> (virbr0): bridge port virbr0-nic was attached
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> (virbr0-nic): enslaved to virbr0
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> (virbr0-nic): device state change: unmanaged -> unavailable (reason 'managed') [10 20 2]
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> ifcfg-rh: add connection in-memory (3d52e408-48ac-4832-806a-f7d7437dc4bd,"Wired connection 1")
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> (virbr0-nic): created default wired connection 'Wired connection 1'
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> (virbr0-nic): device state change: unavailable -> disconnected (reason 'none') [20 30 0]
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> Auto-activating connection 'Wired connection 1'.
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> (virbr0-nic): Activation: starting connection 'Wired connection 1' (3d52e408-48ac-4832-806a-f7d7437dc4bd)
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> (virbr0-nic): device state change: disconnected -> prepare (reason 'none') [30 40 0]
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> NetworkManager state is now CONNECTING
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> (virbr0-nic): device state change: prepare -> config (reason 'none') [40 50 0]
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> (virbr0-nic): device state change: config -> ip-config (reason 'none') [50 70 0]
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> Activation (virbr0-nic) Beginning DHCPv4 transaction (timeout in 45 seconds)
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> dhclient started with pid 2571
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> (virbr0): device state change: unmanaged -> unavailable (reason 'connection-assumed') [10 20 41]
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> ifcfg-rh: add connection in-memory (9e09f7e2-340e-43c9-bbcb-e32582c33943,"virbr0")
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> (virbr0): device state change: unavailable -> disconnected (reason 'connection-assumed') [20 30 41]
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> (virbr0): Activation: starting connection 'virbr0' (9e09f7e2-340e-43c9-bbcb-e32582c33943)
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> (virbr0): device state change: disconnected -> prepare (reason 'none') [30 40 0]
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> (virbr0): device state change: prepare -> config (reason 'none') [40 50 0]
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> (virbr0-nic): device state change: ip-config -> secondaries (reason 'none') [70 90 0]
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> (virbr0): device state change: config -> ip-config (reason 'none') [50 70 0]
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> (virbr0-nic): device state change: secondaries -> activated (reason 'none') [90 100 0]
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> NetworkManager state is now CONNECTED_LOCAL
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> (virbr0-nic): Activation: successful, device activated.
Jun 24 23:55:35 agent1 systemd: Starting Network Manager Script Dispatcher Service...
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> (virbr0): device state change: ip-config -> ip-check (reason 'none') [70 80 0]
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> (virbr0): device state change: ip-check -> secondaries (reason 'none') [80 90 0]
Jun 24 23:55:35 agent1 NetworkManager[849]: <info> (virbr0): device state change: secondaries -> activated (reason 'none') [90 100 0]
Jun 24 23:55:35 agent1 dhclient[2571]: receive_packet failed on virbr0-nic: Network is down
Jun 24 23:55:35 agent1 systemd: Started Network Manager Script Dispatcher Service.
Jun 24 23:55:36 agent1 NetworkManager[849]: <info> (virbr0): Activation: successful, device activated.
Jun 24 23:55:36 agent1 NetworkManager[849]: <info> (virbr0-nic): link disconnected (deferring action for 4 seconds)
Jun 24 23:55:39 agent1 NetworkManager[849]: <info> (virbr0-nic): link disconnected (calling deferred action)
Jun 24 23:55:42 agent1 dhclient[2571]: send_packet: Network is down
Jun 24 23:55:53 agent1 dhclient[2571]: send_packet: Network is down
Jun 24 23:56:08 agent1 dhclient[2571]: send_packet: Network is down
Jun 24 23:56:19 agent1 NetworkManager[849]: <warn> (virbr0-nic): DHCPv4 request timed out.
Jun 24 23:56:19 agent1 NetworkManager[849]: <info> (virbr0-nic): DHCPv4 state changed unknown -> timeout
Jun 24 23:56:20 agent1 NetworkManager[849]: <info> (virbr0-nic): canceled DHCP transaction, DHCP client pid 2571
Jun 24 23:56:20 agent1 NetworkManager[849]: <info> (virbr0-nic): DHCPv4 state changed timeout -> done
Jun 24 23:56:20 agent1 NetworkManager[849]: <info> (virbr0-nic): device state change: activated -> failed (reason 'ip-config-unavailable') [100 120 5]
Jun 24 23:56:20 agent1 NetworkManager[849]: <info> (virbr0): detached bridge port virbr0-nic
Jun 24 23:56:20 agent1 NetworkManager[849]: <info> (virbr0-nic): released from master virbr0
Jun 24 23:56:20 agent1 NetworkManager[849]: <warn> (virbr0-nic): Activation: failed for connection 'Wired connection 1'
Jun 24 23:56:20 agent1 NetworkManager[849]: <info> (virbr0-nic): device state change: failed -> disconnected (reason 'none') [120 30 0]
Jun 24 23:56:20 agent1 systemd: Starting Network Manager Script Dispatcher Service...
Jun 24 23:56:20 agent1 systemd: Started Network Manager Script Dispatcher Service.
[root@agent1 ~]#
To add few cents I just did google and Google Lord says run command dhclient which fixed my issue. This however doesn't give me any clue why it started working and not before.
All I want a static IP so I guess I just want eth0, I am not sure what is enp0s3, lo,virbr0,virbr0 is.
Please see output from server again:
jim@agent1 ~]$ su - root
Password:
Last login: Fri Jun 24 23:57:08 AEST 2016 on pts/1
[root@agent1 ~]# ping -c 5 google.com
ping: unknown host google.com
[root@agent1 ~]# ifconfig
enp0s3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
ether 08:00:27:f0:e0:47 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 0 (Local Loopback)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255
ether 00:00:00:00:00:00 txqueuelen 0 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
[root@agent1 ~]# dhclient
[root@agent1 ~]# ifconfig
enp0s3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 10.0.2.15 netmask 255.255.255.0 broadcast 10.0.2.255
inet6 fe80::a00:27ff:fef0:e047 prefixlen 64 scopeid 0x20<link>
ether 08:00:27:f0:e0:47 txqueuelen 1000 (Ethernet)
RX packets 4 bytes 1830 (1.7 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 33 bytes 6199 (6.0 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 0 (Local Loopback)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255
ether 00:00:00:00:00:00 txqueuelen 0 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
virbr0-nic: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 52:54:00:44:89:62 txqueuelen 500 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
[root@agent1 ~]# ping -c 5 google.com
PING google.com (220.244.223.108) 56(84) bytes of data.
64 bytes from 220-244-223-108.tpgi.com.au (220.244.223.108): icmp_seq=1 ttl=58 time=102 ms
64 bytes from 220-244-223-108.tpgi.com.au (220.244.223.108): icmp_seq=2 ttl=58 time=15.9 ms
64 bytes from 220-244-223-108.tpgi.com.au (220.244.223.108): icmp_seq=3 ttl=58 time=16.8 ms
64 bytes from 220-244-223-108.tpgi.com.au (220.244.223.108): icmp_seq=4 ttl=58 time=24.2 ms
64 bytes from 220-244-223-108.tpgi.com.au (220.244.223.108): icmp_seq=5 ttl=58 time=32.4 ms
--- google.com ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4011ms
rtt min/avg/max/mdev = 15.944/38.400/102.543/32.618 ms
[root@agent1 ~]#
Honestly I have no idea what is happening with my network...
I want a static IP + able to access internet on command line + access internet on browser.
Any help would be very much appreciated.