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Reply to the list so other people can see what is being discussed.
Try adding this to your real servers:
iptables -t nat -A PREROUTING -d 10.0.0.15 -p tcp --dport 80 -j REDIRECT
You don't need ip_forward enabled anywhere.
On 6/20/12 8:34 AM, Javi Legido wrote:
> Thanks for the quick reply.
>
> Honestly not sure how to make it work. Do you mind to reply with below
> information of a working example?
>
> Director
>
> -All ip's
> -Any iptables roule?
> -Any custom route?
> -Yes/No 1 to /proc/sys/net/ipv4/ip_forward
>
> Real servers
>
> -All ip's
> -Any iptables roule?
> -Any custom route?
> -Yes/No 1 to /proc/sys/net/ipv4/ip_forward
>
> Output of ipvsadm on the director
>
> I'm testing on a scenario where all 4 nodes (client, director and 2
> real servers) are in the same subnet.
>
> Many thanks
>
> 2012/6/20 David Coulson <david@xxxxxxxxxxxxxxxx>:
>> Do you have the 10.0.0.15 address configured on the real servers - Usually
>> you put it on the loopback interface and tweak the arp configuration to make
>> sure it doesn't arp for it.
>>
>> Or you can add an iptables REDIRECT rule that matches dst ip of vip and port
>> - This is what I do, since it makes the config simpler (IMHO)
>>
>> Do you see the SYN packet from the client on your real servers when the
>> request is routed from IPVS? If so, then you need one of the above
>> suggestions. if not, you have a network issue.
>>
>>
>> On 6/20/12 8:17 AM, Javi Legido wrote:
>>> I'm playing with LVS, but no way to redirect HTTP request to real
>>> servers (details on http://pastebin.com/LUFRefnq).
>>> Some TCP 80 packets arrives to real servers, but looks like replies
>>> not.
>>> Any simple example of LVS?
>>> Should I 'echo 1 > /proc/sys/net/ipv4/ip_forward' in any server?
>>> Thanks
>>> Details:
>>> www.dev.jj.com is an alias of balancer-1.dev.jj.com 10.0.0.15
>>>
>>> ########################################################################
>>> $ sudo ipvsadm
>>> IP Virtual Server version 1.2.1 (size=4096)
>>> Prot LocalAddress:Port Scheduler Flags
>>> -> RemoteAddress:Port Forward Weight ActiveConn
>>> InActConn
>>> TCP balancer-1.dev.jj.com:www rr
>>> -> test-4.dev.jj.com:www Route 1 0 0
>>>
>>> - Ignored:
>>> -> test-5.dev.jj.com:www Route 1 0 0
>>>
>>>
>>> ########################################################################
>>>
>>> Client:
>>>
>>> $ wget -O - http://www.dev.jj.com
>>> --2012-06-20 13:13:02-- http://www.dev.jj.com/
>>> Resolving www.dev.jj.com... 10.0.0.15
>>> Connecting to www.dev.jj.com|10.0.0.15|:80...
>>>
>>> Balancer:
>>>
>>> $ sudo ipvsadm
>>> IP Virtual Server version 1.2.1 (size=4096)
>>> Prot LocalAddress:Port Scheduler Flags
>>> -> RemoteAddress:Port Forward Weight ActiveConn
>>> InActConn
>>> TCP balancer-1.dev.jj.com:www rr
>>> -> test-4.dev.jj.com:www Route 1 0 0
>>> -> test-5.dev.jj.com:www Route 1 0 1
>>>
>>> _______________________________________________
>>> Please read the documentation before posting - it's available at:
>>> http://www.linuxvirtualserver.org/
>>>
>>> LinuxVirtualServer.org mailing list - lvs-users@xxxxxxxxxxxxxxxxxxxxxx
>>> Send requests to lvs-users-request@xxxxxxxxxxxxxxxxxxxxxx
>>> or go to http://lists.graemef.net/mailman/listinfo/lvs-users
>>
>>
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