What is Ifupdown?

In order to make network configuration easier Debian provides a standard high level network configuration tool consisting of the ifup and ifdown programs and the /etc/network/interfaces file. The ifupdown program was written with the intent that it alone be used to configure and deconfigure network interfaces.

What is $Iface?

3. IFACE is an internal variable for ifupdown ( ifup and ifdown ), could be used in the relevant configuration file /etc/network/interfaces (and on files from relevant directories). The variable IFACE expands to the name of the interface being processed currently by ifup or ifdown .

Where is ETC network interface?

A. /etc/network/interfaces file contains network interface configuration information for the both Ubuntu and Debian Linux. This is where you configure how your system is connected to the network.

What does allow hotplug mean?

allow-hotplug: *wait* for kernel+drivers+udev to detect the device, then ip link set up it. The only thing that can deal with annoying USB, SDIO, etc. This can be kinda important when non-auto-loading stuff is involved, or when network file systems are involved.

How do I enable eth0?

How to Enable a Network Interface. The “up” or “ifup” flag with interface name (eth0) activates a network interface if it is not inactive state and allowing to send and receive information. For example, “ifconfig eth0 up” or “ifup eth0” will activate the eth0 interface.

How do I open ETC network interface?

Open your /etc/network/interfaces file, locate the:

1. “iface eth0…” line and change dynamic to static.
2. address line and change the address to the static IP address.
3. netmask line and change the address to the correct subnet mask.
4. gateway line and change the address to the correct gateway address.

How do you use Ifplugd?

Configuring ifplugd on Ubuntu 14.10

1. Run apt-get update to grab the latest package information: user@ubuntu:~$ sudo apt-get update.
2. Install ifplugd : user@ubuntu:~$ sudo apt-get install ifplugd Reading package lists…
3. Modify the default configuration for ifplugd . Use vi , nano , or your preferred text editor.

What is ETC network?

One of those files we recently rediscovered during auditing is the /etc/networks file. It translates between IP ranges and network names. It is used for tools like netstat and route. It only works on class A, B, or C networks.

Where are NetworkManager settings stored?

NetworkManager keeps connection information on known individual networks in configuration files called profiles. Those are stored at /etc/NetworkManager/system-connections/. For options in these files refer to the manpage on nm-settings: man nm-settings or online.

https://www.youtube.com/watch?v=d1p0O6txGVI