Dynamisk IP med OpenWrt (Linux)

[macsat]

Dette er lavet til OpenWrt (linux til routere / emedded devices, for info se http://www.macsat.com), men burde køre under alle linux, hvor det eksterne netværksinterface får brugerens "Internet IP".

Kode: [Vælg]

#!/bin/sh
#
#

# Configuration Start

# Files containing the old IP and the changelog
OLDIP=/etc/gratisdns_ipaddr
CHANGELOG=/tmp/gratisdns_changes

# Username, password and domainname/hostname on gratisdns.dk

USERNAME=<bruger>
PASSWORD=<kode>
DOMAIN=<domain>
HOST=<host.domain.dk>

# End of Configuration

currentip=`ifconfig vlan1 | awk '/inet/{print $2}' |cut -d: -f2`



if [ ! -f "${OLDIP}" ]
        then
        echo "127.0.0.1" > ${OLDIP}
        fi

previousip=`cat ${OLDIP}`
timestamp=`date`


if [ "${currentip}" = "${previousip}" ]
 then
       exit 0;
fi

echo "${currentip}" > ${OLDIP}


echo "${timestamp} | ${currentip}" >> ${CHANGELOG}


UPDATESTM="https://ssl.gratisdns.dk/ddns.phtml?u=${USERNAME}&p=${PASSWORD}&d=${DOMAIN}&h=${HOST}&i=${currentip}"

curl -k "${UPDATESTM}"