8000 Clarify description of CIDR-address column of pg_hba.conf, to discourage · postgres/postgres@fa3d622 · GitHub
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Clarify description of CIDR-address column of pg_hba.conf, to discourage
people from trying notations like '10.6/16', which is accepted but does not mean what you probably think. Per example from Paul Forgey.
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‎doc/src/sgml/client-auth.sgml

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<!-- $PostgreSQL: pgsql/doc/src/sgml/client-auth.sgml,v 1.94 2006/10/23 18:10:30 petere Exp $ -->
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<!-- $PostgreSQL: pgsql/doc/src/sgml/client-auth.sgml,v 1.95 2006/11/17 23:25:17 tgl Exp $ -->
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<chapter id="client-authentication">
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<title>Client Authentication</title>
@@ -226,11 +226,12 @@ hostnossl <replaceable>database</replaceable> <replaceable>user</replaceable>
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</para>
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7DD9
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<para>
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A typical <replaceable>CIDR-address</replaceable> is
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Typical examples of a <replaceable>CIDR-address</replaceable> are
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<literal>172.20.143.89/32</literal> for a single host, or
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<literal>172.20.143.0/24</literal> for a network.
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<literal>172.20.143.0/24</literal> for a small network, or
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<literal>10.6.0.0/16</literal> for a larger one.
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To specify a single host, use a CIDR mask of 32 for IPv4 or
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128 for IPv6.
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128 for IPv6. In a network address, do not omit trailing zeroes.
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</para>
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<para>

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