https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6841
Priority: P2
Bug ID: 6841
Assignee: [email protected]
Summary: Spamd cannot listen to more than one IP address (or to
v4/v6 at the same time)
Severity: normal
Classification: Unclassified
OS: All
Reporter: [email protected]
Hardware: PC
Status: NEW
Version: 3.3.2
Component: spamc/spamd
Product: Spamassassin
Pretty simple, but a big one:
Spamd cannot listen to more than one (specified) IP address. If you specify
multiple -i options, only the last one is used. While it's possible to spin up
multiple spamd processes, each bound to a separate IP address, it feels as
though there's a cleaner way to do this.
The larger problem here is that if you specify simply "-i" spamd will not
listen on "all addresses" but only "all ipv4 addresses". If you specify
something like "-i localhost" or "-i [hostname]" this will only be a
single-stack bind according to the standard lookup rules (typically v4 first,
then v6).
To explain this further, assume you're doing your spamc calls with -d hostname.
This should simply work in the same way (if there's a AAAA and the host has v6
connectivity, use it, else use v4).
I've seen other daemons able to bind to * on TCP46 (dual-stack). If this is
too complicated to do in current spamd code, then it should be noted in the
docs section and perhaps the issues of potential file locking should be noted.
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