* Edson Marquezani Filho:

> We've found out that openssl shipped with CentOS 5 (old, I know) won't
> talk TLS by default.

This depends on the application using OpenSSL.

> So, once we cut off SSLv3, our Nagios scripts begin to fail, because
> they are not able to handshake with the monitored server.

Which programs do your Nagios scripts use to probe your servers?
This is likely the place to look for solutions.

> Since upgrading every CentOS 5 box would be impossible, I was
> wondering if there was some kind of magic (compilation option, patch,
> global runtime configuration, anything) we could do on OpenSSL 0.9.8
> so that it will try TLS 1.0 by default, or at least do it when SSLv23
> doesn't work. I didn't find any configure option for it, though.

Even with OpenSSL 0.9.8, the SSLv23 method attempt to negotiate
TLS 1.0.
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