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