Date: Wed, 31 Dec 2003 21:41:06 -0800 From: Gregory Neil Shapiro <gshapiro@freebsd.org> To: Doug Barton <DougB@freebsd.org> Cc: "cvs-all@FreeBSD.org" <cvs-all@freebsd.org> Subject: Re: cvs commit: src/etc/sendmail freebsd.mc Message-ID: <20040101054105.GY10635@horsey.gshapiro.net> In-Reply-To: <20031231152909.U1441@bo.vpnaa.bet> References: <200312311742.hBVHgGb2051373@repoman.freebsd.org> <20031231152909.U1441@bo.vpnaa.bet>
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> > Modified files: (Branch: RELENG_4) > > etc/sendmail freebsd.mc > > Log: > > MFC: Enable IPv6 by default but make it optional so it doesn't affect > > sites without IPv6. > What happens if I have a RELENG_4 system, with no IPv6 enabled, and I > mergemaster this change into my system? If everything keeps working with > no errors, then I think enabling this by default is probably ok. If not, > then I'd be concerned that this violotes the charter for -stable. As noted in the log, it won't affect sites (or machines) without IPv6 enabled. Actually, that isn't completely true. A machine with a non-IPv6 enabled kernel which uses the new configuration will get a syslog informational report when they start the daemon saying the optional socket was disabled but the MTA will continue to operate normally: Dec 31 21:06:23 scooter sm-mta[2184]: starting daemon (8.12.10): SMTP+queueing@00:30:00 Dec 31 21:06:23 scooter sm-mta[2184]: NOQUEUE: SYSERR(root): opendaemonsocket: daemon IPv6: can't create server SMTP socket: Protocol not supported Dec 31 21:06:23 scooter sm-mta[2184]: NOQUEUE: SYSERR(root): opendaemonsocket: daemon IPv6: optional socket disabled
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