NAME

sys-unconfig − undo a system’s configuration

SYNOPSIS

/usr/sbin/sys-unconfig

DESCRIPTION

sys-unconfig packs up a machine to make it ready to be configured again. 

It restores a system’s configuration to an “as-manufactured” state.  A system’s configuration consists of hostname, 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 , sysidnis , and sysidsys programs run at boot. 

sys-unconfig does the following:

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

• Removes the default hostname in /etc/hostname.??[0-9] and /etc/nodename. 

• Removes the default domainname in /etc/defaultdomain. 

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

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

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

• Removes the entries for this host in /etc/net/∗/hosts. 

• Removes the file /etc/inet/netmasks. 

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

When sys-unconfig is finished, it performs a system shutdown. 

sys-unconfig is a potentially  dangerous utility and can only be run by the super-user. 

FILES

/etc/inet/hosts

/etc/TIMEZONE

/etc/hostname.??[0-9]

/etc/nodename

/etc/inet/netmasks

/etc/shadow

/etc/defaultdomain

/etc/net/∗/hosts

/var/nis/NIS_COLD_START

/var/yp/binding/∗/ypservers

SEE ALSO

sysidtool(1M)

BUGS

sys-unconfig is not available on diskless or dataless systems. 

SunOS 5.1/x86  —  Last change: 13 Oct 1991