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lxc-user-nic - Create and attach a nic to another network namespace.


lxc-user-nic {pid} {type} {bridge} [nicname]


lxc-user-nic is a setuid-root program with which unprivileged users may create network
interfaces for use by a lxc container.

It will consult the configuration file /etc/lxc/lxc-usernet to determine the number of
interfaces which the calling user is allowed to create, and which bridge he may attach
them to. It tracks the number of interfaces each user has created using the file
/run/lxc/nics. It ensures that the calling user is privileged over the network namespace
to which the interface will be attached.


pid The process id for the task to whose network namespace the interface should be

type The network interface type to attach. Currently only veth is supported. With this
type, two interfaces representing each tunnel endpoint are created. One endpoint
will be attached to the specified bridge, while the other will be passed into the

bridge The bridge to which to attach the network interface, for instance lxcbr0.

The desired interface name in the container. This will be eth0 if unspecified.

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