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This article mainly explains "the usage of Linux basic commands ifup and ifdown". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn the usage of the basic Linux commands ifup and ifdown.

Ifup

The ifup instruction is used to start the network interface device, which must be a file defined in "/ etc/sysconfig/network-scripts/ifcfg-ethX" or "/ etc/sysconfig/network". These scripts usually take one parameter: the name of the configuration (for example, eth0). In the boot sequence, they are called with the second parameter of "boot" so that devices (ONBOOT=no) that you do not want to turn on during boot can be ignored at this time.

The scope of this command: RedHat, RHEL, Ubuntu, CentOS, SUSE, openSUSE, Fedora.

1. Grammar

Ifup interface

2. List of options

None

3. Examples

Activate the network card

[root@localhost ~] # ifup eth0 / / activate the network card eth0

Active connection status: activating

Active connection path: / org/freedesktop/NetworkManager/ActiveConnection/2

Status: activated

The connection is activated

Ifdown

The ifdown instruction is used to shut down the network interface device, which must be a file defined in "/ etc/sysconfig/network-scripts/ifcfg-ethX" or "/ etc/sysconfig/network".

The scope of this command: RedHat, RHEL, Ubuntu, CentOS, SUSE, openSUSE, Fedora.

1. Grammar

Ifdown interface

2. List of options

None

3. Examples

Turn off the network card

[root@localhost ~] # ifdown eth0 / / close eth0

Device status: 3 (disconnect)

At this point, I believe you have a deeper understanding of "the use of the basic Linux commands ifup and ifdown". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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