Re: [Proftpd-devel] IPv6 support in 1.3.0rc1

[TJ S. <tj...@ca...>]

> place this change in behavior in the docs in large letters.

It'd be in NEWS, and the ChangeLog, and the RELEASE_NOTES files.  And the
README.IPv6.

> I've never built with ipv6, so I don't know the answer to this; does
> proftpd log an error on startup if attempts (and fails) to bind to an
> ipv6 socket but succeeds in binding to an ipv4 socket?

No; proftpd won't try to failover in that fashion.  If given an explicit
IP address in the proftpd.conf (DefaultAddress, MasqueradeAddress or
<VirtualHost>), it will attempt to bind to that; IPv6 and IPv4 addresses
are honored.  If given a DNS name (default hostname, DefaultAddress, or
<VirtualHost>), that name will be resolved to its address(es).  If
SocketBindTight is on, then a separate socket will be bound for each
address, IPv4 and IPv6 (if present).  Otherwise, a single wildcard socket
will be opened for both IPv4 and IPv6 connections.  (Note that the
MasqueradeAddress directive does not handle multiple addresses for a given
DNS name; it will only use the first one returned, since the server can
only masquerade as a single address at one time.)

Perhaps the above should be written into README.IPv6 and RELEASE_NOTES?

TJ

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   Never underestimate the potency, and the brevity, of novelty.

     -TJ Saunders

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