Node and Host Name Sizes on HP-UX: Using the Expanded Capabilities of HP-UX

Glossary

11i v2 Update

Bundled updates to HP-UX 11i v2. Included in 11i v2 September 2004 Update is pre-

enablement for expanded node name and host name. This includes the compiler versions

which support FLV, and the header, kernel, and libc support of expanded node name (using

FLV) and host name. It also includes updates to many commands and utilities to

accommodate the long names. The remaining enablement for 11i V2 is provided in the

optional NodeHostNameXpnd product bundle.

11i v3

The full release of HP-UX that follows the v2 release. It includes all enablement for expanded

node and host names in the base OS product.

11.23

This is the “release” corresponding to HP-UX 11i v2 as provided by the uname –r

command.

11.31

This is the “release” corresponding to HP-UX 11i v3 as reported by the uname –r

command.

20040821

This is the optional API level which supports the expanded versions of the node name and

host name interfaces. It is used as the value for the compilation symbol _HPUX_API_LEVEL.

API levels are cumulative. Any future API level will be numerically greater than 20040821

and will include all preceding interface versions.

binary name

The name of an interface as it appears in the symbol table of the program’s (relocatable)

object file, as used by the object linker to bind the external references of one object to

another.

Domain Name System (DNS)

The standard distributed host name lookup service for Internet host names (described in RFC

1034). DNS requires that individual host-name labels not exceed 63 octets (bytes), and that

the entire host name (all labels and dot delimiters combined) does not exceed 255 octets.

EOVERFLOW

The error number returned from the nonexpanded version of the uname(2) system function

when the value corresponding to any field exceeds the capacity of that field.

expanded_node_host_names

The kernel tunable that activates the expanded node name and host name capability. When

turned on this tunable allows the system administrator to set large node and host name

values. The default value on HP-UX 11i v2 and v3 is 0 (off). Programs can use the

expanded APIs regardless of whether or not this tunable is turned on.

expanded node/host name clean

An application is said to be “expanded host/node name clean” if it uses no host or node

name related interfaces, or has been rebuilt to use the expanded interfaces for the names.