biolocal:EthWNConfig

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Revision as of 16:25, 27 October 2009 (edit) Mauro (Talk | contribs) (→Cluster nodes configurations) ← Previous diff		Revision as of 16:26, 27 October 2009 (edit) (undo) Mauro (Talk | contribs) (→Cluster nodes configurations) Next diff →
Line 1:		Line 1:
	== Cluster nodes configurations ==		== Cluster nodes configurations ==
	Actually the ip of the 2nd interface on each cluster node is configured automatically at start-up by adding ''+128'' to the boot ip address.		Actually the ip of the 2nd interface on each cluster node is configured automatically at start-up by adding ''+128'' to the boot ip address.
-	This is done by the script /etc/init.d/network present in the rootOS (i.e. not in the snapshot).	+	This is done by the script '''/etc/init.d/network''' present in the rootOS (i.e. not in the snapshot).
	In the script there is this section:		In the script there is this section:
	<pre>		<pre>
-	sysconf_path=/etc/sysconfig/network-scripts	+
	### eth autoconfig ###		### eth autoconfig ###
	# This part of the script read the eth0 ip address and make		# This part of the script read the eth0 ip address and make
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	# Author: Gianluca		# Author: Gianluca
	# Date: 17/02/2009		# Date: 17/02/2009
-		+	sysconf_path=/etc/sysconfig/network-scripts
	interface2=eth1		interface2=eth1
	interface21=eth1.92		interface21=eth1.92
Line 54:		Line 54:
	</pre>		</pre>
-	Moreover, in the files.custom of snapshots it is necessary add the line ''/etc/init.d/network-scripts/ifcg-eth1.92''	+	Moreover, in the files.custom of snapshots it is necessary add the line '''''/etc/init.d/network-scripts/ifcg-eth1.92'''''

---

Revision as of 16:26, 27 October 2009

Cluster nodes configurations

Actually the ip of the 2nd interface on each cluster node is configured automatically at start-up by adding +128 to the boot ip address. This is done by the script /etc/init.d/network present in the rootOS (i.e. not in the snapshot). In the script there is this section:

### eth autoconfig ###
# This part of the script read the eth0 ip address and make
# an additional ip to assign to eth1, adding 128 to the last ip octet
# Author: Gianluca
# Date: 17/02/2009
sysconf_path=/etc/sysconfig/network-scripts
interface2=eth1
interface21=eth1.92

# Here we assume that the ip on eth0 is previusly assigned by dhcp
ip=`/sbin/ifconfig | awk '/HWaddr|Bcast/ {split($0,lines,"\n"); print lines[1];}'|sed -e '$!N;s/\n/ /' -e 's/addr://g' |awk '{print $7}'|grep 192.168`

n1=`echo $ip|cut -d '.' -f 1`
n2=`echo $ip|cut -d '.' -f 2`
n3=`echo $ip|cut -d '.' -f 3`
n4=`echo $ip|cut -d '.' -f 4`

# Add 128 to the last octet
let c4=$n4+128;

# The new ip to assign to eth1.92 interface
ip2=$n1.$n2.$n3.$c4

# Write the configuration in the sysconfig directory

# Write the configuration in the sysconfig directory for eth1.2
echo "DEVICE=$interface21" > $sysconf_path/ifcfg-$interface21
echo "VLAN=yes" >> $sysconf_path/ifcfg-$interface21
echo "BOOTPROTO=none" >> $sysconf_path/ifcfg-$interface21
echo "BROADCAST=192.168.191.255" >> $sysconf_path/ifcfg-$interface21
echo "IPADDR=$ip2" >> $sysconf_path/ifcfg-$interface21
echo "NETMASK=255.255.192.0" >> $sysconf_path/ifcfg-$interface21
echo "NETWORK=192.168.128.0" >> $sysconf_path/ifcfg-$interface21
echo "ONBOOT=yes" >> $sysconf_path/ifcfg-$interface21
echo "TYPE=Ethernet" >> $sysconf_path/ifcfg-$interface21

# Write the configuration in the sysconfig directory for eth1

echo "DEVICE=$interface2" > $sysconf_path/ifcfg-$interface2
echo "BOOTPROTO=none" >> $sysconf_path/ifcfg-$interface2
echo "IPADDR=0.0.0.0" >> $sysconf_path/ifcfg-$interface2
echo "ONBOOT=yes" >> $sysconf_path/ifcfg-$interface2
echo "TYPE=Ethernet" >> $sysconf_path/ifcfg-$interface2


### End eth autoconfig ###

Moreover, in the files.custom of snapshots it is necessary add the line /etc/init.d/network-scripts/ifcg-eth1.92