Codewut Because Software Matters

#replace eth1:0 with your NIC / alias
bind_ip=$(/sbin/ifconfig eth1:0 | grep 'inet addr:' | cut -d: -f2 | awk '{print $1}')
 
export BIND_OPTS="-Dlocal.bind.address=${bind_ip}"
 
# Command specific options appended to HADOOP_OPTS when specified
export HADOOP_NAMENODE_OPTS="-Dcom.sun.management.jmxremote $HADOOP_NAMENODE_OPTS $BIND_OPTS"
export HADOOP_SECONDARYNAMENODE_OPTS="-Dcom.sun.management.jmxremote $HADOOP_SECONDARYNAMENODE_OPTS $BIND_OPTS"
export HADOOP_DATANODE_OPTS="-Dcom.sun.management.jmxremote $HADOOP_DATANODE_OPTS $BIND_OPTS"
export HADOOP_BALANCER_OPTS="-Dcom.sun.management.jmxremote $HADOOP_BALANCER_OPTS $BIND_OPTS" 
export HADOOP_JOBTRACKER_OPTS="-Dcom.sun.management.jmxremote $HADOOP_JOBTRACKER_OPTS $BIND_OPTS"

<property>
  <name>dfs.secondary.http.address</name>
  <value>${local.bind.address}:50090</value>
  <description>
    The secondary namenode http server address and port.
    If the port is 0 then the server will start on a free port.
  </description>
</property>
 
<property>
  <name>dfs.datanode.address</name>
  <value>${local.bind.address}:50010</value>
</property>
 
<property>
  <name>dfs.datanode.http.address</name>
  <value>${local.bind.address}:50075</value>
</property>
 
<property>
  <name>dfs.datanode.ipc.address</name>
  <value>${local.bind.address}:50020</value>
</property>
 
<property>
  <name>dfs.http.address</name>
  <value>${local.bind.address}:50070</value>
</property>
 
<property>
  <name>dfs.datanode.https.address</name>
  <value>${local.bind.address}:50475</value>
</property>
 
<property>
  <name>dfs.https.address</name>
  <value>${local.bind.address}:50470</value>
</property>