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improved check of current IP, registered at DNS server

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This commit is contained in:
Daniel Steglich 2015-03-06 21:46:57 +01:00
parent 7d30480117
commit 98506f0fdd
1 changed files with 3 additions and 3 deletions
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6
actions/dynamicdns
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@ -269,7 +269,7 @@ doGetWANIP()
# this function is called via cronjob
doUpdate()
{
dnsentry=$(nslookup ${host}|tail -n2|grep A|sed s/[^0-9.]//g)
local dnsentry=$(nslookup ${host}|tail -n2|grep A|sed s/[^0-9.]//g)
if [ "${dnsentry}" = "${wanip}" ];then
return
fi
@ -335,7 +335,7 @@ case ${cmd} in
;;
update)
doReadCFG
oldip=$(cat ${IPFILE})
local dnsentry=$(nslookup ${host}|tail -n2|grep A|sed s/[^0-9.]//g)
doGetWANIP
echo ${IPFILE}
echo ${wanip} > ${IPFILE}
@ -343,7 +343,7 @@ case ${cmd} in
mv ${cfgfile}.tmp ${cfgfile}
echo "execute=${0} success ${wanip}" >> ${cfgfile}
# if we know our WAN IP, only update if IP changes
if [ "${oldip}" != "${wanip}" -a "${wanip}" != ${NOIP} ];then
if [ "${dnsentry}" != "${wanip}" -a "${wanip}" != ${NOIP} ];then
doUpdate
fi
# if we don't know our WAN IP do a blind update once a hour