Edit: /usr/libexec/dovecot/mkcert.sh (866B)
#!/bin/sh
# Generates a self-signed certificate.
# Edit dovecot-openssl.cnf before running this.
umask 077
OPENSSL=${OPENSSL-openssl}
SSLDIR=${SSLDIR-/etc/pki/dovecot}
OPENSSLCONFIG=${OPENSSLCONFIG-dovecot-openssl.cnf}
CERTDIR=$SSLDIR/certs
KEYDIR=$SSLDIR/private
CERTFILE=$CERTDIR/dovecot.pem
KEYFILE=$KEYDIR/dovecot.pem
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