HOSTID(1)

NAME
hostid - set or print identifier of current host system

SYNOPSIS
hostid [ identifier ]

DESCRIPTION
The hostid command prints the identifier of the current host in hexadecimal. This numeric value is expected to be unique across all hosts and is normally set to the host's Internet address. The super-user can set the hostid by giving a hexadecimal argument; this is usually done in the startup script /etc/rc.local.

SEE ALSO
gethostid(2), sethostid(2)