Haproxy and Dovecot auth
Giuseppe Civitella
gcivitella at entermail.it
Thu Oct 15 18:26:01 UTC 2015
Hi all,
I'd like to use Haproxy to balance an auth service on a couple of
Dovecot directors to have a redundant sasl service for my Postfix instances.
While I configure the Postfixes to use, as smtpd_sasl_path, a direct
connection to one of the directors I notice no errors.
When I redirect the smtpd_sasl_path through an Haproxy balanced
connection, I receive an error the first time I try to sen an email.
The error is:
SASL PLAIN authentication failed: Connection lost to authentication server
If then I send more emails I receive no errors.
If I do not send emails for a few minutes, the error appears again.
The relevant Haproxy configuration is the following:
listen auth *:12345
mode tcp
balance source
log global
option tcplog
option log-health-checks
stick-table type ip size 200k expire 30m
stick on src
default-server inter 1000 fall 3 rise 1
server dovecot-director01 dovecot-director01:12345 check
Do anyone have an idea about what it's missing?
Thanks a lot
Giuseppe
--
Giuseppe Civitella
gcivitella at entermail.it
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