dhcpcd-run-hooks man page on aLinux

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DHCPCD-RUN-HOOKS(8)	    System Manager's Manual	   DHCPCD-RUN-HOOKS(8)

NAME
     dhcpcd-run-hooks — DHCP client configuration script

DESCRIPTION
     dhcpcd-run-hooks is used by dhcpcd(8) to run any system and user defined
     hook scripts.  System hook scripts are found in /lib/dhcpcd-hooks and the
     user defined hooks are /etc/dhcpcd.enter-hook.  and
     /etc/dhcpcd.exit-hook.  The default install supplies hook scripts for
     configuring /etc/resolv.conf and the hostname.  Your distribution may
     have included other hook scripts to say configure ntp or ypbind.  A test
     hook is also supplied that simply echos the dhcp variables to the console
     from DISCOVER message.

     Each time dhcpcd-run-hooks is invoked, $interface is set to the interface
     that dhcpcd is run on and $reason is to the reason why dhcpcd-run-hooks
     was invoked.  DHCP information to be configured is held in variables
     starting with the word new_ and old DHCP information to be removed is
     held in variables starting with the word old_.  dhcpcd can display the
     full list of variables it knows how about by using the -V, --variables
     argument.

     Here's a list of reasons why dhcpcd-run-hooks could be invoked:

     PREINIT  dhcpcd is starting up and any pre-initialisation should be done.

     CARRIER  dhcpcd has detected the carrier is up.  This is generally just a
	      notification and no action need be taken.

     INFORM   dhcpcd informed a DHCP server about it's address and obtained
	      other configuration details.

     BOUND    dhcpcd obtained a new lease from a DHCP server.

     RENEW    dhcpcd renewed it's lease.

     REBIND   dhcpcd has rebound to a new DHCP server.

     REBOOT   dhcpcd successfully requested a lease from a DHCP server.

     IPV4LL   dhcpcd failed to contact any DHCP servers but did obtain an
	      IPV4LL address.

     STATIC   dhcpcd has been configured with a static configuration which has
	      not been obtained from a DHCP server.

     3RDPARTY
	      dhcpcd is monitoring the interface for a 3rd party to give it an
	      IP address.

     TIMEOUT  dhcpcd failed to contact any DHCP servers but was able to use an
	      old lease.

     EXPIRE   dhcpcd's lease or state expired and it failed to obtain a new
	      one.

     NAK      dhcpcd received a NAK from the DHCP server.  This should be
	      treated as EXPIRE.

     NOCARRIER
	      dhcpcd lost the carrier.	The cable may have been unplugged or
	      association to the wireless point lost.

     FAIL     dhcpcd failed to operate on the interface.  This normally hap‐
	      pens when dhcpcd does not support the raw interface, which means
	      it cannot work as a DHCP or ZeroConf client.  Static configura‐
	      tion and DHCP INFORM is still allowed.

     STOP     dhcpcd stopped running on the interface.

     TEST     dhcpcd received an OFFER from a DHCP server but will not config‐
	      ure the interface.  This is primarily used to test the variables
	      are filled correctly for the script to process them.

FILES
     When dhcpcd-run-hooks runs, it loads /etc/dhcpcd.enter-hook and any
     scripts found in /lib/dhcpcd-hooks in a lexical order and then finally
     /etc/dhcpcd.exit-hook

SEE ALSO
     dhcpcd(8)

AUTHORS
     Roy Marples ⟨roy@marples.name⟩

BUGS
     Please report them to http://roy.marples.name/projects/dhcpcd

BSD				March 23, 2009				   BSD
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