Nastavení DKIM - ./script domena.cz

opendkim

#!/bin/bash
# http://linuxaria.com/howto/using-opendkim-to-sign-postfix-mails-on-debian
#
# Note:
# opendkim-genkey has been changed (-h sha256)

redColor='\033[0;31m'
greenColor='\033[0;32m'
noColor='\033[0m'

function echoRed(){
  echo -e "${redColor}$1${noColor}"
}

function echoGreen(){
  echo -e "${greenColor}$1${noColor}"
}

function checkDomainDir(){
  # Directory for domain keys
  if ! [ -d "$domainDir" ]; then
    mkdir "$domainDir"
    echo "Creating directory $domainDir"
  else
    if [ -f "$publicKeyFile" ] && [ -f "$privateKeyFile" ]; then
      echoRed "Keys already exist!"  
      exit
    fi
  fi
}


if [ "$#" != 1 ]; then
  echoRed "Usage $0 domain.com"
  exit
fi

domain="$1"
echo "Using domain $domain"

# Variables
dkimUser="opendkim"
dkimGroup="opendkim"
dkimDir="/etc/opendkim"
keyTableFile="$dkimDir/KeyTable"
signingTableFile="$dkimDir/SigningTable"

#domain="wavevision.cz"
domainDir="$dkimDir/$domain"
publicKeyFile="$domainDir/mail.txt"
privateKeyFile="$domainDir/mail.private"


checkDomainDir


# Generate keys
opendkim-genkey -r -h sha256 -d "$domain" -s mail -D "$domainDir"
echo "Public key: $publicKeyFile"
echoGreen "$(cat $publicKeyFile)"


# Permission
chown -R "$dkimUser:$dkimGroup" "$domainDir"
chmod 700 "$domainDir"
chmod 600 "$publicKeyFile"
chmod 600 "$privateKeyFile"

echo "Editing $keyTableFile"
echo -e "$domain $domain:mail:$privateKeyFile\n" >> "$keyTableFile"

echo "Editing $signingTableFile"
echo -e "*@$domain $domain\n" >> "$signingTableFile"

echoGreen "Done"