! Configuration File for keepalived
!
! The SMTP_CHECK connects to a smtp server
! and checks with the following dialogue:
!
! 220 mta1.somecompany.com ESMTP
! HELO foo.bar.com
! 250 mta1.somecompany.com Hello foo.bar.com [192.168.1.45], pleased to meet you
! QUIT
! 221 2.0.0 mta1.somecompany.com closing connection
!
! It specifically checks the numeric codes returned (220, 250, and 221).
!
global_defs {
notification_email {
acassen
}
notification_email_from Alexandre.Cassen@firewall.loc
smtp_server 192.168.200.1
smtp_connect_timeout 30
router_id LVS_DEVEL
}
virtual_server 192.168.200.100 25 {
delay_loop 60
lb_algo rr
lb_kind NAT
protocol TCP
! In this real_server example we will simply check
! the ip address of the real_server. This could be
! the case where the real server only has a single
! interface that keepalived is balancing traffic
! to.
real_server 172.16.1.10 25 {
weight 1
SMTP_CHECK {
connect_timeout 30
retry 2
delay_before_retry 5
helo_name "foo.bar.com"
}
}
! In this complex example, the real_server has
! multiple interfaces. Keepalived is sending traffic
! to 172.16.1.11 but the smtp server also routes
! traffic to some additional subnets. We do not
! want to dispatch traffic unless all the interfaces
! appear to be up. Note: The main ip of the real
! server that we are dispatching traffic to must
! explicitly be checked by a host directive.
real_server 172.16.1.11 25 {
weight 1
SMTP_CHECK {
connect_timeout 10
retry 2
delay_before_retry 5
helo_name foo.bar.com
host {
connect_ip 172.16.1.11
}
host {
connect_ip 192.168.155.10
}
host {
connect_ip 64.233.167.99
}
}
}
! Final example showing some of the more extended
! features.
!
! Use connect_port to provide an alternate port
! other than the default 25.
!
! Use bindto to force the connection to originate
! from a specific interface.
real_server 172.16.1.12 25 {
weight 1
SMTP_CHECK {
connect_timeout 10
retry 2
delay_before_retry 5
helo_name "foo.bar.com"
host {
connect_ip 172.16.1.12
connect_port 25
bindto 172.16.1.2
}
host {
connect_ip 192.168.155.11
connect_port 25
bindto 192.168.155.2
}
host {
connect_ip 64.233.167.100
connect_port 587
}
}
}
}