> sudo systemctl status networking.service
● networking.service - Raise network interfaces
Loaded: loaded (/lib/systemd/system/networking.service; enabled; vendor preset: enabled)
Drop-In: /run/systemd/generator/networking.service.d
└─50-insserv.conf-$network.conf
Active: failed (Result: exit-code) since Mon 2016-05-02 15:30:47 EDT; 7min ago
Docs: man:interfaces(5)
Process: 1721 ExecStart=/sbin/ifup -a --read-environment (code=exited, status=1/FAILURE)
Process: 1715 ExecStartPre=/bin/sh -c [ "$CONFIGURE_INTERFACES" != "no" ] && [ -n "$(ifquery --read-environment --list --exclude=lo)" ] && udevadm settle (code=exited, status=0/SUCCESS)
Main PID: 1721 (code=exited, status=1/FAILURE)
May 02 15:30:47 dovidg ifup[1721]: /etc/network/if-up.d/sendmail: 44: .: Can't open /usr/share/sendmail/dynamic
May 02 15:30:47 dovidg ifup[1721]: run-parts: /etc/network/if-up.d/sendmail exited with return code 2
May 02 15:30:47 dovidg ifup[1721]: Failed to bring up ens3.
May 02 15:30:47 dovidg ifup[1721]: /etc/network/if-up.d/sendmail: 44: .: Can't open /usr/share/sendmail/dynamic
May 02 15:30:47 dovidg ifup[1721]: run-parts: /etc/network/if-up.d/sendmail exited with return code 2
May 02 15:30:47 dovidg ifup[1721]: /sbin/ifup: post-up script failed.
May 02 15:30:47 dovidg systemd[1]: networking.service: Main process exited, code=exited, status=1/FAILURE
May 02 15:30:47 dovidg systemd[1]: Failed to start Raise network interfaces.
May 02 15:30:47 dovidg systemd[1]: networking.service: Unit entered failed state.
May 02 15:30:47 dovidg systemd[1]: networking.service: Failed with result 'exit-code'.
> sudo systemctl status network.service
● network.service
Loaded: not-found (Reason: No such file or directory)
Active: inactive (dead)
> cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto ens3
iface ens3 inet static
address 162.243.220.22
netmask 255.255.255.0
gateway 162.243.220.1
dns-nameservers 8.8.4.4 8.8.8.8 209.244.0.3
> sudo lshw -c Network
*-network
description: Ethernet interface
product: Virtio network device
vendor: Red Hat, Inc
physical id: 3
bus info: pci@0000:00:03.0
logical name: ens3
version: 00
serial: 04:01:0d:ce:89:01
width: 32 bits
clock: 33MHz
capabilities: msix bus_master cap_list rom ethernet physical
configuration: broadcast=yes driver=virtio_net driverversion=1.0.0 ip=162.243.220.22 latency=0 link=yes multicast=yes
resources: irq:0 ioport:c0a0(size=32) memory:febd1000-febd1fff memory:feb80000-febbffff
> sudo dpkg -l network-manager
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-===============-============-============-=================================
un network-manager <none> <none> (no description available)