Network Managers

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Netplan uses .yaml files for network configuration, these are stored in /etc/netplan

Check DHCP IP leases info

netplan ip leases interfacename

Changes to interfaces are made in the .yaml files, once changes have been made they need to be applied.

To test changes, use the try command. This essentially implements the change for a set amount of time, after which the change is reverted.

netplan try

You can also set a custom timeout time using the below command:

netplan try --timeout=15

To permanently apply a change, use the below command:

netplan apply

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network configuration files are stored in /etc/syconfig/network-scripts

View interface connections

nmcli connection show

Delete a connection

nmcli connection delete connectionname

Add an additional IP to a connection

nmcli connection modify connectionname ipv4.addresses oldIP, newIP

Once changes have been made via nmcli, the interface will need restarting

nmcli connection down

nmcli connection up

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Network configuration files are stored in /etc/sysconfig/~~XXXXXXXXXXXXXXX~~networks

systemctl status network

Show all interfaces

wicked show all

Show info for specific interface

wicked show eth1

Take interface down or up

wicked ifdown eth1

wicked ifup eth1