58 lines
1.3 KiB
Text
58 lines
1.3 KiB
Text
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ifstate(5)
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# NAME
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*/run/ifstate* - interface state database
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# DESCRIPTION
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The */run/ifstate* file describes the present state of the interface
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configuration -- namely, how many interfaces are up, how many
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dependencies each interface has which are up (the refcount), and
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whether or not an interface was explicitly brought up due to request
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or configuration.
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# FILE SYNTAX
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At a minimum, the */run/ifstate* file contains at least one column,
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the physical to logical interface mapping. This column is formatted
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as such:
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```
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lo=lo
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eth0=eth0
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wlan0=work
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```
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The left side of the mapping is the physical interface, while the right
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side is the logical interface. This field is required to be present.
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The next field is the reference count. This is a number that reflects
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the number of *active* dependencies an interface has. As interfaces
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are brought up and down, the refcount may change. This field is
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optional.
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The final field denotes whether or not an interface was brought up
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explicitly -- either by being marked as _auto_ or brought up manually
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using *ifup*(8). The contents of this field if present is the
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_explicit_ keyword.
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# EXAMPLES
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An example from a typical system with localhost, eth0 and a wireguard
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VPN:
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```
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lo=lo 1 explicit
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eth0=eth0 2 explicit
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wg0=wg0 1 explicit
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```
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# SEE ALSO
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*interfaces*(5)
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# AUTHORS
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Ariadne Conill <ariadne@dereferenced.org>
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