Ubuntu 16.04 - Keine Verbindung zum Internet möglich

Ubuntu 16.04 - Keine Verbindung zum Internet möglich
root@ubuntu:/# 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


# Liveliness Interface
auto ens3
iface ens3 inet static
address 192.0.2.100/24

dns nameservers 8.8.8.8 192.0.2.1 1.1.1.1

Please check /etc/network/interfaces.d before changing this file
# as interfaces may have been defined in /etc/network/interfaces.d
# See LP: #1262951
source /etc/network/interfaces.d/*.cfg

root@ubuntu:/# cat /etc/network/interfaces.d/50-cloud-init.cfg

# This file is generated from information provided by
# the datasource.  Changes to it will not persist across an instance.
# To disable cloud-init's network configuration capabilities, write a file
# /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg with the following:
# network: {config: disabled}
auto lo
iface lo inet loopback

auto ens3
iface ens3 inet static
 address 192.0.2.100
 netmask 255.255.255.0
 network 192.0.2.0
 broadcast 192.0.2.255
 gateway 192.0.2.1
dns nameservers 8.8.8.8 192.0.2.1

Systemctl ist geladen und der Status ist aktiv!!

root@ubuntu:~# systemctl status networking.service
● networking.service - Raise network interfaces
   Loaded: loaded (/lib/systemd/system/networking.service; enabled; vendor prese
  Drop-In: /run/systemd/generator/networking.service.d
           └─50-insserv.conf-$network.conf
   Active: active (exited) since Fri 2020-04-03 09:24:56 UTC; 59s ago
     Docs: man:interfaces(5)
  Process: 1485 ExecStart=/sbin/ifup -a --read-environment (code=exited, status=
  Process: 1479 ExecStartPre=/bin/sh -c [ "$CONFIGURE_INTERFACES" != "no" ] && [
 Main PID: 1485 (code=exited, status=0/SUCCESS)

Apr 03 09:24:56 ubuntu systemd[1]: Starting Raise network interfaces...
Apr 03 09:24:56 ubuntu systemd[1]: Started Raise network interfaces.

Kein Zugriff auf das Internet möglich

root@ubuntu:/# ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.
^C
--- 8.8.8.8 ping statistics ---
4 packets transmitted, 0 received, 100% packet loss, time 3022ms

Antwort1

Aktualisieren

(Sie können tatsächlich haben dns nameserversoder dns-nameservers, sodass dieser Teil keine Rolle spielt).

Was wichtig ist: Beachten Sie den Fehler in der Ausgabe systemctl status networking.servicebezüglich der /etc/network/interfacesDatei.

Sie haben einen Syntaxfehler in /etc/network/interfaces:

Ändere das:

source

/etc/network/interfaces.d/*.cfg

dazu:

source /etc/network/interfaces.d/*.cfg

Und dann starten Sie den Dienst.

verwandte Informationen