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<title>Kerberos V5 System Administrator's Guide</title>
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Node:<a name="kdcdefaults">kdcdefaults</a>,
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<h4 class="subsection">[kdcdefaults]</h4>
<p>The following relation is defined in the [kdcdefaults] section:
<dl>
<dt><b>kdc_ports</b>
<dd>This relation lists the ports on which the Kerberos server should
listen for UDP requests by default. This list is a comma separated
list of integers.
If this relation is not specified, the compiled-in default is
88,750, the first being the assigned Kerberos port
and the second which was used by Kerberos V4.
<dt><b>kdc_tcp_ports</b>
<dd>This relation lists the ports on which the Kerberos server should
listen for TCP connections by default. This list is a comma separated
list of integers.
If this relation is not specified, the compiled-in default is not to
listen for TCP connections at all.
<p>If you wish to change this (which we do not recommend, because the
current implementation has little protection against denial-of-service
attacks), the standard port number assigned for Kerberos TCP traffic
is port 88.
<dt><b>v4_mode</b>
<dd>This string specifies how the KDC should respond to Kerberos 4
packets. The possible values are none, disable, full, and nopreauth.
The default value is none.
</dl>
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