Full Version: eth0 has disappeared - Debian
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If you perform 'ifconfig' and find eth0 missing, here is what is most likely the problem:-

When you check the network interfaces it will most likely appear as below:

it-etch:/$ 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
allow-hotplug eth0
iface eth0 inet static

If this is the case, 'allow-hotplug eth0' can cause the issue.

You will need to change 'allow-hotplug eth0' to 'auto eth0' and this should resolve the issue.
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