add_mailchannels_spf.sh

add_mailchannels_spf.sh

#!/bin/bash
LIST=$1
LOG=spf_add.log
date > $LOG
lecho() {
        echo $@ 2>&1 | tee -a $LOG
}
backup_zones(){
        FILE=$(hostname)-$(date +%s)-zones.tgz
        tar czf $FILE /var/named/*.db
}
add_to_server(){
        for ZONEFILE in $(ls /var/named/*.db)
        do
                if [ -z "$(grep mailchannels $ZONEFILE)" ]; then
                DOM=$(echo $ZONEFILE | awk -F/ '{print $NF}' | sed 's/\(.*\)\.db/\1/')
                if [ -n "$DOM" ]; then
                        OLD_SERIAL=$(cat $ZONEFILE | grep -i serial | awk '{print $1}')
                        NEW_SERIAL=$((OLD_SERIAL+1))
                        lecho $ZONEFILE" changing serial from "$OLD_SERIAL" to "$NEW_SERIAL
                        sed -i "s/$OLD_SERIAL/$NEW_SERIAL/" $ZONEFILE || lecho "s/$OLD_SERIAL/$NEW_SERIAL/ ---> FAILED"
                        lecho "Adding SPF record"
                        echo $DOM'.     14400   TXT   "v=spf1 a mx include:relay.mailchannels.net  ?all"'>>$ZONEFILE
                fi
                else
                        lecho $ZONEFILE" already set"
                fi
        done
}
backup_zones
if [ -f $FILE ]; then
        add_to_server
        /scripts/dnscluster syncall
else
        lecho "Couldn't backup, aborting"
fi