Networking vserver guests RHEL: Difference between revisions

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imported>Edwardcapriolo
m (New page: ==Public IP Space== ==Chose a private IP range== Private IP Range: 192.168.1.0<br> Host Private IP: 192.168.1.1<br> Guest Private IP: 192.168.1.2<br> ==network-scripts== In a RHEL based ...)
 
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==Public IP Space==
==Public IP Space==
 
5.5.5.5
==Chose a private IP range==
==Chose a private IP range==
Private IP Range: 192.168.1.0<br>
Private IP Range: 192.168.1.0<br>
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<pre>
<pre>
ifup eth0:1
ifup eth0:1
</pre>
Assuming your vserver is test01
<pre>
echo "eth0:1" > /etc/vservers/test01/interfaces/0/dev/
echo "192.168.1.2" > /etc/vservers/test01/interfaces/0/ip
echo "255.255.255.0" > /etc/vservers/test01/interfaces/0/mask
</pre>
Now your guest should have outbound connectivity.
<pre>
[root@34 ~]# vserver test01 enter
bash-3.1# ifconfig
eth0      Link encap:Ethernet  HWaddr 00:0E:0C:69:ED:E0 
          inet addr:10.10.10.2  Bcast:10.10.10.255  Mask:255.255.255.0
...
bash-3.1# ping www.google.com
PING www.l.google.com (74.125.45.99) 56(84) bytes of data.
64 bytes from yx-in-f99.google.com (74.125.45.99): icmp_seq=1 ttl=244 time=22.3 ms
64 bytes from yx-in-f99.google.com (74.125.45.99): icmp_seq=2 ttl=244 time=22.5 ms
</pre>
==Inbound Connections and NAT==
Now we have to establish inbound connectivity. This can be done with Network Address Translation. We can expose the SSH service through NAT.
<pre>
5.5.5.5:9000->192.168.1.2:22
</pre>
</pre>

Revision as of 01:17, 7 May 2008

Public IP Space

5.5.5.5

Chose a private IP range

Private IP Range: 192.168.1.0
Host Private IP: 192.168.1.1
Guest Private IP: 192.168.1.2

network-scripts

In a RHEL based system many configurations are stored in /etc/sysconfig. The network settings are /etc/sysconfig/network-scripts.

cp /etc/sysconfig/network-scripts/ifcfg-eth0 /etc/sysconfig/network-scripts/ifcfg-eth0:1
vi  /etc/sysconfig/network-scripts/ifcfg-eth0:1
DEVICE=eth0:1
HWADDR=00:0e:0c:69:ed:e0
ONBOOT=yes
NETMASK=255.255.255.0
IPADDR=192.168.1.1
TYPE=Ethernet

This IP address will now start at boot up.

ifup eth0:1

Assuming your vserver is test01

echo "eth0:1" > /etc/vservers/test01/interfaces/0/dev/
echo "192.168.1.2" > /etc/vservers/test01/interfaces/0/ip
echo "255.255.255.0" > /etc/vservers/test01/interfaces/0/mask

Now your guest should have outbound connectivity.

[root@34 ~]# vserver test01 enter
bash-3.1# ifconfig 
eth0      Link encap:Ethernet  HWaddr 00:0E:0C:69:ED:E0  
          inet addr:10.10.10.2  Bcast:10.10.10.255  Mask:255.255.255.0
...
bash-3.1# ping www.google.com
PING www.l.google.com (74.125.45.99) 56(84) bytes of data.
64 bytes from yx-in-f99.google.com (74.125.45.99): icmp_seq=1 ttl=244 time=22.3 ms
64 bytes from yx-in-f99.google.com (74.125.45.99): icmp_seq=2 ttl=244 time=22.5 ms

Inbound Connections and NAT

Now we have to establish inbound connectivity. This can be done with Network Address Translation. We can expose the SSH service through NAT.

5.5.5.5:9000->192.168.1.2:22