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MKDHPARAMS(8)               Double Precision, Inc.               MKDHPARAMS(8)


NAME

       mkdhparams - create DH parameter file


SYNOPSIS

       /usr/local/sbin/mkdhparams


DESCRIPTION

       This script creates new DH parameters and saves them in
       /usr/local/share/courier-imap/dhparams.pem. If this file already exists
       and it's less than 25 days old, the script returns immediately. If this
       file is over 25 days old, new DH parameters get generated and the file
       gets replaced.

       This script is intended to be execute when the system boots, or from a
       monthly cron job.


FILES

       /usr/local/share/courier-imap/dhparams.pem
           DH Parameter file.


ENVIRONMENT VARIABLES

       BITS
           Customize the DH parameter bit size. The default value depends on
           whether this script uses OpenSSL or GnuTLS libraries. For OpenSSL
           the default number of bits is 2048. GnuTLS uses a security level
           setting, rather than the number of bits, and the default security
           level is "high".

           Note

           It make take several minutes to generate new DH parameters with the
           default strength.


SEE ALSO

       courier(8)[1]


AUTHOR

       Sam Varshavchik
           Author


NOTES

        1. courier(8)
           [set $man.base.url.for.relative.links]/courier.html

Courier Mail Server               06/27/2015                     MKDHPARAMS(8)

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