|
Hi,
I am having some problem with the first setup of IPVS. Currently I am
just trying out some diffrent possibilities for load balancing web-
servers, which work better than simple dns-balancing.
My situation:
I have 2 servers in diffrent subnets (at the same provider with a
goog connection). Those 2 servers are having one nic (each) and a
running Apache on Port 8080.
Because of not having the possibility to build in a second nic and do
a NAT-Masquerade I tried to setup an tunnel:
> modprobe ipip
> echo 1 >/proc/sys/net/ipv4/ip_forward
> ip tunnel add $IFACENAME$ mode ipip remote $REMOTEIP$ local
$LOCALIP$ ttl 255
> ifconfig $IFACENAME$ 192.168.1.1
> route add -host 192.168.1.2 $IFACENAME$
and on the other side the opposite.
Pinging is possible now:
> node01:~ # ping 192.168.1.2
> PING 192.168.1.2 (192.168.1.2) 56(84) bytes of data.
> 64 bytes from 192.168.1.2: icmp_seq=1 ttl=64 time=0.293 ms
and:
> node02:~ # ping 192.168.1.1
> PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
> 64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=0.271 ms
at this moment I thought I did the hardest and used ipvsadm to
configure my load-balancing:
> node01:~ # ipvsadm -l
> IP Virtual Server version 1.2.1 (size=4096)
> Prot LocalAddress:Port Scheduler Flags
> -> RemoteAddress:Port Forward Weight ActiveConn InActConn
> TCP $HOSTNAME$: rr
> -> 192.168.1.1:http Local 1 0 0
> -> 192.168.1.2:http Tunnel 1 0 0
as you see my node01 ist also the load-balancer - but I do not think
that this is the problem.
node01 can access the webserver on node02; node02 can access the
webserver on node01 - everything fine so far.
But when I try to access node01 from an external PC nothing happens.
The connection is established, but I do not get a response:
> telnet node01 80
> Trying $IP$...
> Hello Echo
> Huhu?
The apache at the node does not receive a request (as to see in the
logs).
I simply do not know what to do now? Where might be the problem?
Thank you and excuse my bad english,
Jan
| 