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Chapter 2. Attributes

Table 2-1. Roll Attributes

Name	Type	Default
`disableServices`	string	kudzu canna cWnn FreeWnn kWnn tWnn mDNSResponder
`Info_CertificateCountry` [a]	string
`Info_CertificateLocality` [a]	string
`Info_CertificateOrganization` [a]	string
`Info_CertificateState` [a]	string
`Info_CertificateContact` [a]	string
`Info_CertificateLatLong` [a]	string
`Info_CertificateName` [a]	string
`Info_CertificateURL` [a]	string
`Kickstart_DistroDir` [a]	string	/export/rocks
`Kickstart_Keyboard` [a]	string	us
`Kickstart_Lang` [a]	string	en_US
`Kickstart_Langsupport` [a]	string	en_US
`Kickstart_Mutlicast` [a]	string	226.117.172.185
`Kickstart_PrivateAddress` [a]	string	10.1.1.1
`Kickstart_PrivateBroadcast` [a]	string	10.1.255.255
`Kickstart_PrivateDNSDomain` [a]	string	local
`Kickstart_PrivateDNSServers` [a]	string	10.1.1.1
`Kickstart_PrivateGateway` [a]	string	10.1.1.1
`Kickstart_PrivateHostname` [a]	string
`Kickstart_PrivateKickstartBaseDir` [a]	string	install
`Kickstart_PrivateKickstartCGI` [a]	string	sbin/kickstart.cgi
`Kickstart_PrivateKickstartHost` [a]	string	10.1.1.1
`Kickstart_PrivateNTPHost` [a]	string	10.1.1.1
`Kickstart_PrivateNetmask` [a]	string	255.255.0.0
`Kickstart_PrivateNetmaskCIDR` [a]	string	16
`Kickstart_PrivateNetwork` [a]	string	10.1.0.0
`Kickstart_PrivatePortableRootPassword` [a]	string
`Kickstart_PrivateRootPassword` [a]	string
`Kickstart_PrivateSHARootPassword` [a]	string
`Kickstart_PrivateSyslogHost` [a]	string	10.1.1.1
`Kickstart_PublicAddress` [a]	string
`Kickstart_PublicBroadcast` [a]	string
`Kickstart_PublicDNSDomain` [a]	string
`Kickstart_PublicDNSServers` [a]	string
`Kickstart_PublicGateway` [a]	string
`Kickstart_PublicHostname` [a]	string
`Kickstart_PublicKickstartHost` [a]	string
`Kickstart_PublicNTPHost` [a]	string
`Kickstart_PublicNetmask` [a]	string
`Kickstart_PublicNetmaskCIDR` [a]	string
`Kickstart_PublicNetwork` [a]	string
`Kickstart_Timezone` [a]	string
`airboss` [b]	string	specified on boot line
`arch` [c], [b]	string	i386 \| x86_64
`dhcp_filename` [d]	string	pxelinux.0
`dhcp_nextserver` [d]	string	10.1.1.1
`hostname` [e], [b]	string
`kickstartable` [d]	bool	`TRUE`
`os` [c], [b]	string	linux \| solaris
`rack` [e], [b]	int
`rank` [e], [b]	int
`rocks_version` [a]	string	6.1
`rsh` [f]	bool	`FALSE`
`rocks_autogen_user_keys` [f]	bool	`FALSE`
`ssh_use_dns` [a]	bool	`TRUE`
`x11` [f]	bool	`FALSE`
Notes: a. Default value created using rocks add attr `name` `value` and affects all hosts. b. Default value created using rocks add host attr localhost `name` `value` and only affects the `frontend` appliance. c. Attribute is for internal use only, and should not be altered by the user. Each time a machine installs this attributed is reset to the default value for that machine (depend on kernel booted). d. Default value created using rocks add appliance attr `appliance` `name` `value` for the `frontend` and `compute` appliances. e. Attribute cannot by modified. This value is not recorded in the cluster database and is only available as an XML entity during installation. f. Attribute is referenced but not defined so is treated as `FALSE`.

Info_Certificate_{*}: The attributes are created during frontend installation. The values are taken from user input on the system installation screens.
Kickstart_{*}: The attributes are created during frontend installation. The values are taken from user input on the system installation screens. All of these attributes are considered internal to Rocks® and should not be modified directly.
airboss: Specifies the address of the airboss host. This only applies to virtual machines.
arch: The CPU architecture of the host. This host-specific attribute is set by the installing machine. User changes to this attribute have no affect.
dhcp_filename: Name of the PXE file retrieved over TFTP at startup.
dhcp_nextserver: IP address of the server that servers installation profiles (kickstart, jumpstart). In almost all configuration this should be the frontend machine.
kickstartable: The attribute must be set to TRUE for all appliances, and FALSE (or undefined) for all unmanaged devices (e.g. network switches).
os: The OS of the host. This host-specific attribute is set by the installing machine. User changes to this attribute have no affect.
rsh: If TRUE the machine is configured as an RSH client. This is not recommended, and will still require RSH server configuration on the frontend machine.
ssh_use_dns: Set to FALSE to disable DNS lookups when connecting to nodes in the cluster over SSH. If establishing an ssh connect is slow the cause may be a faulty (or absent) DNS system. Disabling this lookup will speed up connection establishment, but lowers the security of your system.
x11: If TRUE X11 is configured and the default runlevel is changed from 3 to 5. X11 is always configure on the frontend and this attribute applies only to the other nodes in the cluster.

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