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: / usr / share / dovecot /
Filename : mkcert.sh
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#!/bin/sh

# Generates a self-signed certificate.
# Edit dovecot-openssl.cnf before running this.

umask 077
OPENSSL=${OPENSSL-openssl}
SSLDIR=${SSLDIR-/etc/ssl}
OPENSSLCONFIG=${OPENSSLCONFIG-dovecot-openssl.cnf}

CERTDIR=/etc/dovecot/ssl
KEYDIR=/etc/dovecot/ssl

CERTFILE=$CERTDIR/dovecot.pem
KEYFILE=$KEYDIR/dovecot.key

if [ ! -d $CERTDIR ]; then
  echo "$CERTDIR directory doesn't exist"
  exit 1
fi

if [ ! -d $KEYDIR ]; then
  echo "$KEYDIR directory doesn't exist"
  exit 1
fi

if [ -f $CERTFILE ]; then
  echo "$CERTFILE already exists, won't overwrite"
  exit 1
fi

if [ -f $KEYFILE ]; then
  echo "$KEYFILE already exists, won't overwrite"
  exit 1
fi

$OPENSSL req -new -x509 -nodes -config $OPENSSLCONFIG -out $CERTFILE -keyout $KEYFILE -days 365 || exit 2
chmod 0600 $KEYFILE
echo 
$OPENSSL x509 -subject -fingerprint -noout -in $CERTFILE || exit 2