NAME

       mkdhparams - create DH parameter file

SYNOPSIS

       /usr/sbin/mkdhparams

DESCRIPTION

       This script creates new DH parameters and saves them in /etc/courier/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

       /etc/courier/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)
           http://www.courier-mta.org/courier.html