Date: 08 Sep 2003 09:28:27 -0400 From: Lowell Gilbert <freebsd-questions-local@be-well.no-ip.com> To: "SUPPORT" <support@bluetooth-shop.sk> Cc: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: FreeBSD upgrade on production server Message-ID: <44y8wzh0jo.fsf@be-well.ilk.org> In-Reply-To: <003401c373c4$75e78fc0$3501a8c0@pro.sk> References: <003401c373c4$75e78fc0$3501a8c0@pro.sk>
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"SUPPORT" <support@bluetooth-shop.sk> writes: > I wish to upgrade my production firewall / mailserver / DNS server from > 4.3 to 4.8. The simplest way seems to be use of CVSUP. OK, but... Right, so far. > Is it safe ? It's not completely safe. Of course, neither is running a two-and-a-half year-old release of any operating system connected to the Internet. Risk is something you have to manage, not avoid. > What should I backup ? Everything you'd mind losing. For me, that's mostly /etc, /usr/local/etc, user data, kernel configs, and the log directory. > There is running well-configured > sendmail - are there some changes in its configuration between > versions 8.11.3 used in FreeBSD 4.3 and 8.12.8p1 used in > FreeBSD 4.8. There certainly are some changes. Some of them are related to important security fixes. You will need to merge your configuration into the updates. > This is my only mailserver and I don't have an secondary > if something fails... Well, the safest approach is to have a spare system, and build the modifications on that. If you can't do that, then almost as safe (and actually safer from your own oversights) is to have a spare machine to try out the upgrade on so you get used to the procedure. If you really can't spare a machine for any of these things, accept some downtime and make sure you're *very* careful as you go through the documented procedure. > Please, advice if you have some know-how :-))) All of my specific advice is *in* the Handbook. If I had any more advice, I'd submit it to, well, the Handbook. Good luck.
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