hostname_map(4)

NAME

hostname_map - tell ToolTalk clients to use a per-host alternative rpc.ttdbserverd(1m)

SYNOPSIS

hostname_map

DESCRIPTION

A ToolTalk hostname_map tells ToolTalk clients to use host A’s rpc.ttdbserverd(1m) as a proxy for host B. In this way, ToolTalk databases can be created for filesystems exported from hosts (like host B) that for whatever reason do not run rpc.ttdbserverd(1m).

The hostname_map file is called "hostname_map" and resides in the same directories as the ToolTalk types databases; see tt_type_comp(1). If $TT_HOSTNAME_MAP is set, it is used in place of $HOME/.tt/hostname_map.

ToolTalk clients read the hostname maps when the ToolTalk client library is initialized in e.g. tt_open(3). ttsession reads the hostname maps upon startup and rereads them if it receives signal USR2.

Format rules

The format rules for a hostname_map are:

1. Any line beginning with a "#" or white-space and a "#" is a comment.

2. Blank lines are comments.

3. Words are delimited by white space.

4. The first word in a non-comment line is the host name from which to map.

5. The second word in a non-comment line is the host name to which to map.

ENVIRONMENT

TT_HOSTNAME_MAP
If $TT_HOSTNAME_MAP is set, it is used in place of $HOME/.tt/hostname_map.

TTPATH
A colon-separated list of directories in which to seek hostname_maps. See tt_type_comp(1).

EXAMPLES

This example maps "mainframe1" to "sparcstorage":

# rpc.ttdbserverd cannot run on filesystems
# exported from mainframe
mainframe1 sparcstorage

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