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hostid(1) [bsd man page]

HOSTID(1)						      General Commands Manual							 HOSTID(1)

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 commonly set to the host's Internet address. The super-user can set the hostid by giving a hexadecimal argument or the hostname; this is usually done in the startup script /etc/rc.local. SEE ALSO
gethostid(2), sethostid(2) 4.2 Berkeley Distribution May 5, 1986 HOSTID(1)

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hostid(1)						      General Commands Manual							 hostid(1)

hostid - Sets or displays the identifier of the local host SYNOPSIS
/usr/sbin/hostid [hostname | hexadecimal_number | internet_address] DESCRIPTION
The hostid command displays the 32-bit identifier of the host as a hexadecimal number in host standard byte order. The identifier must be unique across all hosts and is commonly set to the Internet address of the specified host. The superuser can set the host ID by specifying a hostname, internet_address, or hexadecimal_number argument. The identifier is stored in network standard byte order. EXAMPLES
To display the identifier of the local host, enter: $ hostid 0xc009c803 The hostid command displays the identifier of the host as a hexadecimal number in host standard byte order. To set the identifier of the local host to the local Internet address, enter: $ hostid 555.5.55.555 The hostid command converts the Internet address to its hexadecimal equivalent, and then sets the local host to this address. Note that the sample Internet address in this example, 555.5.55.555, is not a valid Internet address and would cause hostid to return an error. SEE ALSO
Commands: hostname(1) Functions: gethostid(2), sethostid(2) hostid(1)
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