RB: How to put in Draining mode

Create and use the following script:

cat > closeRB.sh
#!/bin/bash

usage() {
  cat <<EOF

Usage:
      $0 open|close

      Script to open/close the RB with iptables rules.

EOF
}

RB=`/bin/hostname`
#echo "RB="$RB
echo "/sbin/iptables -D INPUT -p tcp --source $RB --destination-port
9002 -j ACCEPT"
case "$1" in
  open)
    /sbin/iptables -D INPUT -p tcp --source 127.0.0.1 --destination-port 9002 -j ACCEPT
    /sbin/iptables -D INPUT -p tcp --source $RB --destination-port 9002 -j ACCEPT
    /sbin/iptables -D INPUT -p tcp --destination-port 9002 -j REJECT
    ;;

  close)
    /sbin/iptables -I INPUT 1 -p tcp --source 127.0.0.1 --destination-port 9002 -j ACCEPT
    /sbin/iptables -I INPUT 2 -p tcp --source $RB --destination-port 9002 -j ACCEPT
    /sbin/iptables -I INPUT 4 -p tcp --destination-port 9002 -j REJECT
    ;;

  *)
    usage
    exit

esac

[Ctrl-C]

chmod 755 closeRB.sh

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