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Date:      Thu, 18 Jun 2015 17:16:08 +0200
From:      Peter Olsson <list-freebsd-announce@jyborn.se>
To:        Gregory Shapiro <gshapiro@gshapiro.net>
Cc:        FreeBSD Errata Notices <errata-notices@freebsd.org>, freebsd-stable <freebsd-stable@freebsd.org>
Subject:   Re: [FreeBSD-Announce] FreeBSD Errata Notice FreeBSD-EN-15:08.sendmail
Message-ID:  <20150618151608.GB3755@pol-server.leissner.se>
In-Reply-To: <20150618151032.GB42082@minime.local>
References:  <201506180553.t5I5rKlO059969@freefall.freebsd.org> <20150618112132.GD7234@pol-server.leissner.se> <CA%2BE3k91zj4Tt5BQKNbE5dn1FvykCbn=E1xhFjrkU18jMnL6DCw@mail.gmail.com> <20150618132211.GO7234@pol-server.leissner.se> <20150618151032.GB42082@minime.local>

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On Thu, Jun 18, 2015 at 08:10:33AM -0700, Gregory Shapiro wrote:
> > > Did you (re)generate your dh.params file as noted in the Workaround section?
> > 
> > No, because of this text under Solution:
> > "
> > A change to the raise the default for sendmail client connections to
> > 1024-bit DH parameters has been committed.
> > "
> > 
> > As I understand it this would remove the need for generating
> > the dh.params file?
> 
> You do not need to regenerate dh.params with the patch unless you have
> specifically set DHParameters in /etc/mail/sendmail.cf to a lower
> strength.  What is the output of:
> 
> grep DHParam /etc/mail/sendmail.cf
> 
> If it is set to a string beginning with '5' or a filename and that
> file was generated using 512-bit strength, then remove that setting.

I never changed or generated anything in the mail configuration
on these servers, they use the default mc/cf files:

$ grep DHParam /etc/mail/sendmail.cf
# DHParameters (only required if DSA/DH is used)
O DHParameters=/etc/mail/certs/dh.param

$ ls -l /etc/mail/certs
total 12
lrwxr-xr-x  1 root  wheel    10 31 Aug  2014 4bc0b037.0 -> cacert.pem
-rw-r--r--  1 root  wheel  1326 31 Aug  2014 cacert.pem
-rw-r--r--  1 root  wheel  1375 31 Aug  2014 host.cert
-rw-------  1 root  wheel  1704 31 Aug  2014 host.key

Peter Olsson



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