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85 lines
2.7 KiB
85 lines
2.7 KiB
8 months ago
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NetworkManager was built to automatically migrate connection profiles in
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this directory to equivalent ones in keyfile format in directory
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/etc/NetworkManager/system-connections.
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You can check whether the migration is enabled via:
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$ NetworkManager --print-config | grep migrate-ifcfg-rh
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In case it is enabled, all files in this directory are migrated at startup.
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To inspect where your connection files are currently stored use:
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$ nmcli -f name,uuid,filename connection
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Background
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==========
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The ifcfg format is deprecated and will be removed in future releases. For
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more information see:
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https://lists.freedesktop.org/archives/networkmanager/2023-May/000103.html
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Connection profiles in keyfile format have many benefits. For example, this
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format is INI file-based and can easily be parsed and generated.
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Each section in NetworkManager keyfiles corresponds to a NetworkManager
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setting name as described in the nm-settings(5) and nm-settings-keyfile(5)
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man pages. Each key-value pair in a section is one of the properties listed
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in the settings specification of the man page.
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How to keep using ifcfg
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=======================
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If you want to keep using connection profiles in ifcfg format, you need to:
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- disable the automatic migration to keyfile by setting
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"migrate-ifcfg-rh=false" in the [main] section of NetworkManager
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configuration;
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- optionally, set "plugins=ifcfg-rh" in the [main] section of
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NetworkManager configuration so that new profiles are created in ifcfg
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format.
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At this point, you can migrate all your files back via
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nmcli connection migrate --plugin ifcfg-rh
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Or, if you prefer to migrate only specific connections:
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nmcli connection migrate --plugin ifcfg-rh <profile_name|UUID>
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Note that some connection types are not supported by the ifcfg plugin.
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Interface renaming
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==================
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Connection profiles stored in ifcfg-rh format support the renaming of
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interfaces via udev. This is done via a helper tool
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/usr/lib/udev/rename_device that is invoked by udev to parse the files
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in /etc/sysconfig/network-scripts; when the HWADDR and DEVICE
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variables are set, the interface that matches the MAC address in
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HWADDR is renamed to the name specified in DEVICE.
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Connections in keyfile format don't provide the same integration with
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udev. The renaming of interfaces must be configured directly in udev,
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for example by creating a file:
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/etc/systemd/network/70-rename.link
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with content:
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[Match]
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MACAddress=00:11:22:33:44:56
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[Link]
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Name=ethernet1
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Alternatively, a udev rule can also be used, such as:
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/etc/udev/rules.d/70-interface-names.rules
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with content:
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SUBSYSTEM=="net",ACTION=="add",ATTR{address}=="00:11:22:33:44:56",ATTR{type}=="1",NAME="ethernet1"
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