Hi All,
So, first of all, thank you all for the input, suggestions, and help -
its is greatly, *greatly* appreciated.
After much toing-and-froing I finally tracked down the issue, and I'm
happy to say it *wasn't* postfix causing the problem at all, but
haproxy. In particular it was a (health) `check` statement on the
offending port in the haproxy config. Removing that statement and the
error messages disappeared.
Problem solved (or at least side-stepped)
Thank you again for all your help
Cheers
Dulux-Oz
On 25/2/25 06:36, Wietse Venema via Postfix-users wrote:
Viktor Dukhovni via Postfix-users:
On Mon, Feb 24, 2025 at 09:53:24AM -0500, Wietse Venema via Postfix-users wrote:
I need some help in interpreting the following postfix log message,
please (this is showing up all over the log):
`Feb 24 17:46:55 mail postfix/smtpd[77980]: fatal:
smtpd_peer_hostaddr_to_sockaddr: cannot convert client address/port to
string: Servname not supported for ai_socktype`
The getaddrinfo(3) system library function cannot convert a (presumably
numerical IP address and numerical port) for the socket type
SOCK_STREAM into the internal form "struct addrinfo", and returns
the EAI_SERVICE error code.
Given the address is from haproxy, perhaps haproxy is returning a host
address from a protocol famility (IPv4 or IPv6) that is not enabled in
Postfix. We'd then call getaddrinfo() with an address that is not
compatible with the protocol family in `hints`, perhaps eliciting a
less than clear error.
Hmm, the haproxy hadshake parser is aware of the protocols that
Postfix supports, and returns an error if the handshake specifies
an unsupported protocol family. I'm at a tiny screen at the moment,
so I cannot immmediately check all error code paths, biut it looks
like there are no tests for different inet_protocol settings. I'll
add a few just to cover those error paths.
Wietse
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