hostid Command
Purpose
Sets or displays the identifier of the current local host.
Syntax
/usr/sbin/hostid [ HexNumber | InternetAddress | HostName ]
Description
The /usr/sbin/hostid command displays the identifier (either a unique host name or a numeric argument) of the current local host as a hexadecimal number. This numeric value is expected to be unique across all hosts and is commonly set to the address of the host specified by the InternetAddress or HostName parameter. The root user can set the hostid command by specifying a hexadecimal number for the HexNumber, InternetAddress, or HostName parameter. The host identifier is set to the hostname by the /etc/rc.net file.
Parameters
| Item | Description |
|---|---|
| HexNumber | Specifies a unique hexadecimal number representing the current local host. |
| InternetAddress | Specifies an Internet address representing the current local host. |
| HostName | Specifies a symbolic name that maps to a unique host. |
Examples
- To set the identifier
of the local host to the local Internet address with the hostid command, enter the command in the following format:
The hostid command converts the Internet address 192.9.200.3 into the hexadecimal representation 0xc009c803, and then sets the local host (your workstation connected to a network) to this address.hostid 192.9.200.3 0xc009c803 - To display the identifier
of the local host, enter:
The hostid command displays the identifier of the host as a hexadecimal number.hostid 0xc009c803