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Hello,
I have been trying for the past couple of days to setup a lvs mail cluster
using lvs-tun. My configuration is as follows:
Network Config:
x2 Directors
Client & x2 LVS directors on the same public subnet (213.48.252.192/27 -
eth0)
Directors have a private subnet connection on eth2 (172.x.x.x - eth2)
Directors have the gateway of real servers for internet access
Director1 eth0: 213.48.252.198
Director1 VIP address eth0:213.48.252.200
Director1 eth2: 172.25.240.35
Director2 as above but on next ip address.
x2 Real Servers
Real severs on public subnet of (213.48.252.48/28 - eth0)
Real servers also on same private subnet as directors (172.x.x.x - eth2)
Real servers directly route out to net.
Real server1 eth0: 213.48.252.52 / Real server2 eth0: 213.48.252.53
Real server2 eth2: 172.25.240.33 / Real server2 eth2: 172.25.240.34
Real server1 eth2:1 172.25.240.37 - shared + plus GW for Direcotrs
Software Config:
Directors
Directors & Real servers running Redhat ES4
Directors running "ipvsadm v1.24 2003/06/07 (compiled with popt and IPVS
v1.2.0)"
Running Linux HA + ldirectord for VS control
Real Servers
Real servers running Exim 4 & Linux HA for failover
tunl0 up with no arp & rp_filter set to 0
No IP Tables running
Every time i'm connecting from the client machine (telnet to vip:port) the
connection just hangs and i'm not getting any connections through to the
mail servers. ipvsadm reports the following:
/sbin/ipvsadm -L -c -n
IPVS connection entries
pro expire state source virtual destination
TCP 00:49 SYN_RECV 213.48.252.196:43305 213.48.252.200:25
172.25.240.33:25
TCP 00:48 SYN_RECV 213.48.252.196:43303 213.48.252.200:25
172.25.240.33:25
TCP 00:47 SYN_RECV 213.48.252.196:43302 213.48.252.200:25
172.25.240.34:25
TCP 00:46 SYN_RECV 213.48.252.196:43301 213.48.252.200:25
172.25.240.33:25
TCP 00:15 SYN_RECV 213.48.252.196:43292 213.48.252.200:25
172.25.240.34:25
TCP 00:49 SYN_RECV 213.48.252.196:43304 213.48.252.200:25
172.25.240.34:25
ldirectord.cf
# Global Directives
checktimeout=10
checkinterval=10
#fallback=127.0.0.1:25
autoreload=yes
logfile="/var/log/ldirectord.log"|local0
#quiescent=yes
## Virtual Service for SMTP
virtual=213.48.252.200:25
# fallback=127.0.0.1:25
real=172.25.240.33:25 ipip
real=172.25.240.34:25 ipip
checktype=on
service=smtp
checkport=25
scheduler=rr
#persistent=600
protocol=tcp
I've followed the docs but cannot work out why this is not working.
I have also tried LVS-NAT & LVS-DR with no joy, can someone please help.
Thanks,
Mohammed
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