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#!/bin/sh
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HOSTNAME=router-wan-sa-1
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NAMESERVER=128.177.28.71
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TMP_DIR=/tmp/refresh_ip
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if [ ! -d $TMP_DIR ]
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then
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mkdir $TMP_DIR
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fi
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cd $TMP_DIR
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IP=`ifconfig ppp0 | grep -o "inet addr:\(.*\) P-t-P" | sed -e "s/inet addr://" | sed -e "s/ P-t-P//" | sed -e "s/ //g"`
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echo ip=$IP
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#echo "`date` $IP">last_call.txt
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#echo "x${IP}x"
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LAST_IP=`cat last_ip.txt`
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#echo "last-ip = _${LAST_IP}_ , current ip = _${IP}_"
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if [ "${LAST_IP}" == "${IP}" ]
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then
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echo "`date` : no ip change ${IP}">last_call.txt
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exit 0
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else
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echo "`date` : IP CHANGE has happened - old ${LAST_IP} new ${IP} !">last_call.txt
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fi
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echo $IP>last_ip.txt
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(cat <<TEXT
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\$TTL 60
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@ IN SOA @ root (
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200705251 ; serial
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60 ; refresh
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20 ; retry - update retry
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3W12h ; expiry - 3 weeks + 12 hours
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10 ) ; minimum - 2 hours
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MX 10 mail.sigma-com.net.
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MX 50 mail-50.sigma-com.net.
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IN NS ns.sigma-com.net.
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sigma-com.net. IN A 128.177.28.71
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ns IN A 128.177.28.71
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vps-oh1 IN A 128.177.28.71
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officesa IN A ${IP}
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officeze CNAME officeze.dyndns.org.
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openvpn CNAME officesa
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mail-50 CNAME vps-oh1
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mail CNAME mail-10
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masine CNAME web-1
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www.masine CNAME web-1
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trac CNAME web-1
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repos CNAME web-1
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ifolder CNAME web-1
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jabber CNAME java-infra-2
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svn CNAME web-1
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dev-infra-2 CNAME officesa.sigma-com.net.
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java-infra-2 CNAME officesa.sigma-com.net.
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zimbra CNAME mail-10
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blogs CNAME web-1
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forums CNAME web-1
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tickets CNAME web-1
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web-1 CNAME dev-infra-2.sigma-com.net.
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mail-10 CNAME dev-infra-2.sigma-com.net.
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www CNAME web-1
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web-146 CNAME officesa
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TEXT
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) > tmp.zone
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echo "ip sigma-com.net = $IP"
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FEEDBACK="0"
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reload_nameserver() {
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echo "reloading name server"
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scp -o -y -i /etc/dropbear/${HOSTNAME}.key tmp.zone root@${NAMESERVER}:/var/named/sigma-com.net.zone
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FEEDBACK=`ssh -y -i /etc/dropbear/${HOSTNAME}.key root@${NAMESERVER} service named restart | grep -c "\[.*OK.*\]"`
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# 2 => 2 x [ OK ]
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}
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while [ "$FEEDBACK" != "2" ]
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do
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reload_nameserver
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echo "feedback=_${FEEDBACK}_"
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if [ "$FEEDBACK" != "2" ]
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then
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echo "error sleep 10sec"
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sleep 10
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fi
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done
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echo "ip change has finished">>last_call.txt
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