Trouble-free steps to upgrade mailscanner?

[Dan Stromberg]

On Thu, 11 May 2006 17:54:00 +0100, Julian Field wrote:

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> I don't advise using any of the 4.53 releases, there have been problems 
> this month. I will put out a new "beta" of 4.54 very soon (possibly 
> next, right now) that will contain all the fixes for the bits I got 
> wrong in 4.53.

This makes me a little nervous.  Are there some trusted 4.52 releases by
any chance?  Or do they have security issues?

> What operating system are you using?

This one's Solaris, but we use MailScanner here on a variety of OSes.

> If you aren't using the Linux distributions of MailScanner, then as 
> someone else has already said, you should put it somewhere like 
> /opt/MailScanner-x.xx.x (where x.xx.x is the version number) and use a 
> soft-link from /opt/MailScanner to the version number. This means that 
> you can set it all up in its real location, test all the cron jobs and 
> all that sort of stuff. Then switch on Archive Mail in the new version, 
> stop it, set the link up to point to the new version, start it and then 
> watch it. If it goes bad, just stop it, put the link back, start the old 
> version again.

This is great info.

> I'll put out a beta right now for you.

Thanks!

> Dan Stromberg wrote:
>> Hi folks.
>>
>> (If we can work out a really good, no-hiccup procedure, I promise to
>> give back by writing up the process for a web article - I'm a bit of an
>> obsessive note taker/summarizer.  That is, assuming someone hasn't already
>> done so :)
>>
>> I have a busy mail server running MailScanner 4.36.4, part NFS, part local.
>>
>> I need to upgrade it to 100% local MailScanner 4.53.8 (or maybe 4.53.6).
>>
>> If this mail server goes kerflooie, it's not going to be pretty.  At all.
>>
>> I'm assuming I'll need to work out the local vs NFS thing with
>> site-specifics of course, but what are the basic steps one needs to follow
>> to get a trial and tribulation-free mailscanner upgrade - getting it right
>> the first time?
>>
>> For example, is there a way to have two versions of mailscanner running on
>> the host at the same time, so you can test the new one, and cut over later
>> once you feel confident about the new one by doing something simple, like
>> changing a symlink and restarting a daemon?
>>
>> I'm guessing you'd probably need 2 distinct pairs of sendmail's, but what
>> else might one require?
>>
>> Thanks!
>>
>>
>>
>>
>>   
> 
> - -- 
> Julian Field
> www.MailScanner.info
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