Skip to content

Instantly share code, notes, and snippets.

@myles

myles/gist:110002

Created May 11, 2009 14:39
Show Gist options
  • Save myles/110002 to your computer and use it in GitHub Desktop.
Save myles/110002 to your computer and use it in GitHub Desktop.
Download ZIP
Raw
gistfile1.sh
#!/bin/bash
#
# Script to update Linode's DNS Manager for a given name.
#
# Things you need to change.
APIKEY=$(cat ~/.linode-apikey)
LASTIP="/tmp/lastip"
DOMAIN="domain.com"
SOAEMAIL="hostmaster@domain.com"
STATUS="1"
RRTYPE="A"
RRNAME="home"
IFACE="eth0"
# Shouldn't need to change anything below here.
WGET="wget -qO - https://api.linode.com/api/"
NEWIP=$(wget http://checkip.dyndns.com -O - -o /dev/null | sed -r 's/<html><head><title>Current IP Check<\/title><\/head><body>Current IP Address: //g' | sed -r 's/<\/body><\/html>//g')
test -e $LASTIP && OLDIP=$(cat $LASTIP) || OLDIP=""
if [ x"$OLDIP" = x"$NEWIP" ]; then
logger "No IP address change detected. Keeping $NEWIP"
else
DOMAINID=$($WGET --post-data "api_key=$APIKEY&action=domainList" | \
perl -e 'if ( =~ /"DOMAIN":"'"$DOMAIN"'","DOMAINID":([0-9]+),/) { print $1; }')
RESOURCEID=$($WGET --post-data "api_key=$APIKEY&action=domainResourceList&DomainID=$DOMAINID" | \
perl -e 'if ( =~ /"RESOURCEID":([0-9]+),"DOMAINID":'"$DOMAINID"',"TYPE":"'"$RRTYPE"'","NAME":"'"$RRNAME"'"/) { print $1; }')
$WGET --post-data "api_key=$APIKEY&action=domainResourceSave&ResourceID=$RESOURCEID&DomainID=$DOMAINID&Name=$RRNAME&Type=$RRTYPE&Target=$NEWIP"; echo
$WGET --post-data "api_key=$APIKEY&action=domainSave&DomainID=$DOMAINID&Domain=$DOMAIN&Type=master&Status=$STATUS&SOA_Email=$SOAEMAIL"; echo
echo $NEWIP > $LASTIP
logger "Updated IP address to $NEWIP"
fi
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment