remote-smtp-reconfigure

#!/bin/bash

if ! which sshpass > /dev/null; then
    aptitude install sshpass
fi

if [ ! -f "$1" ]; then
    echo "Usage: ./$0 <config file name>"
    echo "Config file format: <host address> <password> <new IP>"
    exit 1
fi

cd "$(dirname "$0")"
echo -n '' > output
cat "$1" | while read host password newip; do
echo "
    echo \"
127.0.0.1
${newip}
${host}
    \" > /etc/dkim-internal-hosts
    if ! cat /etc/postfix/main.cf | grep mynetworks | grep -q "${newip}"; then
        sed -i -r 's/^(mynetworks = .*$)/\1 ${newip}/' /etc/postfix/main.cf
    fi
    /etc/init.d/postfix reload
    /etc/init.d/dk-filter restart
    /etc/init.d/opendkim restart
" | sshpass -p "${password}" ssh "${host}" -lroot
if [ "$?" = "0" ]; then
    echo "${host}   OK" | tee -a output
else
    echo "${host}   ERROR" | tee -a output
fi
echo " "
echo "--------------------------------------------------"
echo " "
done