Re: wrong real server ip in connection

The problem was in -j REDIRECT iptables rules on nodes (to prevent
loop).

В Sat, 17 Oct 2015 23:02:05 +0300

> Hello!
> 
> First of all - Sorry, if wrong maillist.
> I come up with strange situation and i dont really know, if its by
> design or something is wrong in my configuration. so pls help)
> 
> i have three node self-balancing keepalived cluster for smtp.
> 
> server1 195.111.111.164 195.111.111.168
> server2 195.111.111.165 195.111.111.169
> server3 195.111.111.166 195.111.111.170
> 
> two vip address 195.111.111.177 and 195.111.111.176
> 
> problem:
> 
> when i do "telnet 195.111.111.176 25" i got balanced to address
> from "virtual_server 195.111.111.176" group .164 .165 .166(i can see
> in mail server log, which ip i am connected to). It ok, correct.
> 
> but with "telnet 195.111.111.177 25", i am expecting to see in
> mail log, that connection goes to ip .168 or .169. or 170. But they,
> somehow, again goes to .164 .165 .166. Is it correct behavior? I wish
> it is not. Any ideas how to fix?
> 
> ======
> two vrrp instaces:
> 
> vrrp_instance VI_domain1 {
>     state MASTER
>     interface eth3
>     lvs_sync_daemon_inteface eth3
>     virtual_router_id 101
>     priority 200
>     advert_int 2
>     virtual_ipaddress {
>         195.111.111.176/27 dev bond0
>     }
> }
> 
> vrrp_instance VI_domain2 {
>     state MASTER
>     interface eth3
>     lvs_sync_daemon_inteface eth3
>     virtual_router_id 102
>     priority 200
>     advert_int 2
>     virtual_ipaddress {
>         195.111.1111.177/27 dev bond0
>     }
> }
> 
> =====
> virtual_server 195.111.111.176 25 {
>     delay_loop 30
>     lb_algo wrr
>     lb_kind DR
>     protocol TCP
>     persistence_timeout 50
> 
>     real_server 195.111.111.164 25 {
>         weight 100
>         SMTP_CHECK {
>                 connect_timeout 3
>                 retry 1
>                 delay_before_retry 2
>                 helo_name keepalived
>         }
>     }
> 
>     real_server 195.111.111.165 25 {
>         weight 100
>         SMTP_CHECK {
>                 connect_timeout 3
>                 retry 1
>                 delay_before_retry 2
>                 helo_name keepalived
>         }
>     }
> 
>     real_server 195.111.111.166 25 {
>         weight 100
>         SMTP_CHECK {
>                 connect_timeout 3
>                 retry 1
>                 delay_before_retry 2
>                 helo_name keepalived
>         }
>     }
> }
> 
> virtual_server 195.111.111.177 25 {
>     delay_loop 30
>     lb_algo wrr
>     lb_kind DR
>     protocol TCP
>     persistence_timeout 50
> 
>     real_server 195.111.111.168 25 {
>         weight 100
>         SMTP_CHECK {
>                 connect_timeout 3
>                 retry 1
>                 delay_before_retry 2
>                 helo_name keepalived
>         }
>     }
> 
>     real_server 195.111.111.169 25 {
>         weight 100
>         SMTP_CHECK {
>                 connect_timeout 3
>                 retry 1
>                 delay_before_retry 2
>                 helo_name keepalived
>         }
>     }
> 
>     real_server 195.111.111.170 25 {
>         weight 100
>         SMTP_CHECK {
>                 connect_timeout 3
>                 retry 1
>                 delay_before_retry 2
>                 helo_name keepalived
>         }
>     }
> }
> 
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