> Stefano: I'm not sure if ignoring is a good thing SSL related. It
> might be harmless, but the user doesn't necessarily know if there are
> any security implications.

Jan: It's not a security concern. The check is there to warn that it may
not function at all. However, I think the check is unnecessary, as
OpenSSL has a relatively stable ABI, and as long as the same soname is
available, it should work.

> Stefano:  The SSL error message and proftpd not starting after a dist
> upgrade appear to be related.

Well, if you read the source code, you'll see it's a warning only, it
doesn't result in an abort.

Run it in debug mode, and maybe you'll see why it doesn't start:
# proftpd -d 10 -n

> Having to make changes to any application to get it to work after an
> upgrade should be considered unusual.  If it's unavoidable, I would
> expect to see a notice in the distribution release notes.

Of course, that's not desirable, but features come and go, and a config
file that was valid in one version of an application may not be valid in
the next.

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https://bugs.launchpad.net/bugs/873984

Title:
  mod_tls and mod_sftp complain about OpenSSL version mismatch

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