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sys-unconfig(1M)		  System Administration Commands		 sys-unconfig(1M)

NAME
       sys-unconfig - undo a system's configuration

SYNOPSIS
       /usr/sbin/sys-unconfig

DESCRIPTION
       The  sys-unconfig  command  is used to restore a system's configuration to an "as-manufac-
       tured" state, ready to be reconfigured again. The system's configuration consists of host-
       name, Network Information Service (NIS) domain name, timezone, IP address, IP subnet mask,
       and root password. This operation is the inverse of those performed by  the  sysidnet(1M),
       sysidns(1M), and sysidsys(1M) programs run at boot. See sysidtool(1M).

       sys-unconfig does the following:

	   o	  Saves current /etc/inet/hosts file information in /etc/inet/hosts.saved.

	   o	  If  the  current  /etc/vfstab  file  contains  NFS  mount  entries,  saves  the
		  /etc/vfstab file to /etc/vfstab.orig.

	   o	  Restores the default /etc/inet/hosts file.

	   o	  Removes the default hostname in /etc/hostname.interface files  for  all  inter-
		  faces  configured  when  this command is run. To determine which interfaces are
		  configured, run the command  'ifconfig-a'.  The  /etc/hostname.interface  files
		  corresponding to all of the interfaces listed in the resulting output, with the
		  exception of the loopback interface (lo0), will be removed.

	   o	  Removes the default domainname in /etc/defaultdomain.

	   o	  Restores the timezone to PST8PDT in /etc/TIMEZONE.

	   o	  Disables the Network Information Service (NIS) and Network Information  Service
		  Plus (NIS+) if either NIS or NIS+ was configured.

	   o	  Removes the file /etc/inet/netmasks.

	   o	  Removes the file /etc/defaultrouter.

	   o	  Removes the password set for root in /etc/shadow.

	   o	  Removes the file /etc/.rootkey.

	   o	  Executes  all system configuration applications. These applications are defined
		  by prior executions of a sysidconfig	-a  application.  (See	sysidconfig(1M)).
		  When	sys-unconfig is run, all system configuration applications are passed one
		  argument, -u.

	   o	  Removes the file /etc/resolv.conf.

	   o	  Removes the file /etc/sysidcfg.

	   o	  Disables	 LDAP	    by	     removing	     /var/ldap/ldap_client_cache,
		  /var/ldap/ldap_client_file,		/var/ldap/ldap_client_cred,	      and
		  /var/ldap/cachemgr.log.

	   o	  Regenerates keys for sshd(1M).

       When sys-unconfig is finished, it performs a system shutdown.  sys-unconfig  is	a  poten-
       tially dangerous utility and can only be run by the super user.

FILES
       /etc/default/init

	   process control initialization

       /etc/defaultdomain

	   determines host's domain name

       /etc/defaultrouter

	   specifies an IPv4 host's default router

       /etc/hostname.interface

	   identifies symbolic host name associated with network interface interface

       /etc/inet/hosts

	   host name database

       /etc/inet/netmasks

	   network mask database

       /etc/nodename

	   local source for system name

       /etc/.rootkey

	   super-user's secret key

       /etc/shadow

	   shadow password file

       /etc/sysidcfg

	   system identification configuration file for diskless booting

       /etc/vfstab

	   virtual file system table

       /var/nis/NIS_COLD_START

	   list of NIS+ servers that serve a host's default domain

       /var/yp/binding/*/ypservers

	   identifies NIS servers to which the client is allowed to bind

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWadmap 		   |
       +-----------------------------+-----------------------------+

SEE ALSO
       init(1M),  kdmconfig(1M), sshd(1M), sysidconfig(1M), sysidtool(1M), hosts(4), netmasks(4),
       shadow(4), sysidcfg(4), attributes(5)

NOTES
       sys-unconfig is not available on diskless clients.

SunOS 5.11				   19 Jul 2007				 sys-unconfig(1M)
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