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git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@6256 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd
60 lines
1.5 KiB
Plaintext
60 lines
1.5 KiB
Plaintext
=head1 NAME
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B<makehosts> - sets up /etc/hosts from the xCAT hosts table.
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=head1 SYNOPSIS
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B<makehosts> [B<-n>] [I<noderange>] [B<-l>|B<--longnamefirst>] [B<-d>] [B<-m>|B<--mactolinklocal>]
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B<makehosts> {B<-h>|B<--help>}
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=head1 DESCRIPTION
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B<makehosts> updates the /etc/hosts file based on entries in the hosts table in the xCAT database.
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If your node hostnames and IP addresses follow a regular pattern, you can use just a few regular expressions
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in the hosts table and then easily generate /etc/hosts using makehosts.
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=head1 OPTIONS
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=over 6
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=item B<-n>
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Completely replace the /etc/hosts file, losing any previous content. If this option is not specified,
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it will only replace the lines in the file that correspond to the nodes in the specified noderange.
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=item B<-l>|B<--longnamefirst>
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The long name of the host will appear before the short name for each host in the /etc/hosts file.
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The default is short name first.
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=item B<-m>|B<--mactolinklocal>
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Updates /etc/hosts file with IPv6 link local addresses, the link local address is generated
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from the mac address stored in mac table.
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=item B<-d>
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Delete rather than create records.
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=back
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=head1 EXAMPLES
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=over 2
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=item *
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If the xCAT hosts table contains:
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"compute","|node(\d+)|1.2.3.($1+0)|","|(.*)|($1).cluster.net|",,
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Assuming the group "compute" contains node01, node02, etc., then in /etc/hosts they will be given
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IP addresses of 1.2.3.1, 1.2.3.2, etc.
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=back
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=head1 SEE ALSO
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hosts(5), L<makedns(8)|makedns.8>
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