$ sudo systemctl status networking.service
● networking.service - Raise network interfaces
Loaded: loaded (/lib/systemd/system/networking.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Mon 2017-09-04 17:21:42 IST; 1h 27min ago
Docs: man:interfaces(5)
Process: 534 ExecStart=/sbin/ifup -a --read-environment (code=exited, status=1/FAILURE)
Process: 444 ExecStartPre=/bin/sh -c [ "$CONFIGURE_INTERFACES" != "no" ] && [ -n "$(ifquery --read-environment --list --exclude=lo______)" ] && udevadm settle (code=exited, status=0/SUCCESS)
Main PID: 534 (code=exited, status=1/FAILURE)
Sep 04 17:21:42 XXX ifup[534]: than a configuration issue please read the section on submitting
Sep 04 17:21:42 XXX ifup[534]: bugs on either our web page at www.isc.org or in the README file
Sep 04 17:21:42 XXX ifup[534]: before submitting a bug. These pages explain the proper
Sep 04 17:21:42 XXX ifup[534]: process and the information we find helpful for debugging..
Sep 04 17:21:42 XXX ifup[534]: exiting.
Sep 04 17:21:42 XXX ifup[534]: ifup: failed to bring up eth0
Sep 04 17:21:42 XXX systemd[1]: networking.service: Main process exited, code=exited, status=1/FAILURE
Sep 04 17:21:42 XXX systemd[1]: Failed to start Raise network interfaces.
Sep 04 17:21:42 XXX systemd[1]: networking.service: Unit entered failed state.
Sep 04 17:21:42 XXX systemd[1]: networking.service: Failed with result 'exit-code'.
$ cat /etc/network/interfaces.d/setup
auto lo_____
iface lo_____ inet loopback
auto eth0
iface eth0 inet dhcp
EDIT2start:
$ sudo ifconfig
[sudo] password for USERXXX:
enp____enp3s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.XXX168.XXX178.XXX31 netmask 255.255.255.0 broadcast 192.XXX168.XXX178.255
inet6 xxxx::xxx:xxxx:xxxx:xxxx prefixlen 64 scopeid 0x20<link>
ether xx:xx:xx:xx:xx:xx txqueuelen 1000 (Ethernet)
RX packets 759765 bytes 394211523923 (384511.96 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 818803 bytes 175898101736 (17199.73 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 17
lo_____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 1 (Local Loopback)
RX packets 17850 bytes 140883720 (133.76 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 17850 bytes 140883720 (133.76 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlx____wlxf4f26d1b7521: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether xx:xx:xx:xx:xx:xx 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
EDIT2end.
$ ip link
1: lo_____: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp____: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DEFAULT group default qlen 1000
link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff
3: wlx____: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN mode DORMANT group default qlen 1000
link/ether xx:xx:xx:xx:xx:xx brd ff:ff:ff:ff:ff:ff