.bin/donsupdate

   1 #!/bin/sh
   2 [ "$1" = "-u" ] && UPDATE=true || UPDATE=false
   3
   4 IP=`ip a s dev eth0 | sed -n '/inet 10\./s:.*inet \([^/ ]*\).*:\1:p'`
   5
   6 doit() {
   7         HOST=$1
   8         DOMAIN="ad.analog.com"
   9         FQDN="$HOST.$DOMAIN"
  10
  11         if ${UPDATE} ; then
  12                 currip=$(dig +short $FQDN)
  13                 [ "${currip}" = "${IP}" ] && return 0
  14         fi
  15
  16         cat <<-EOF | nsupdate
  17         server 10.64.53.110
  18         update delete $FQDN A
  19         update add $FQDN 86400 A $IP
  20         send
  21         EOF
  22 }
  23
  24 doit vapier-adi
  25 doit vapier