Handshake error can be about anything, i.e. mismatch in protocol version, wrong certificates, no cipher overlap, .... But there are some things which are very strange which your way of doing start_SSL. It looks like you've added any options you could find somewhere, no matter if they make sense for the SSL server or not. Some of these might be the cause of the problem: I would suggest to clean up the code and try again. If the problem persists try with a minimal server instead (i.e. no forkmanager) so that the problem can be more easily debugged.

In reply to Re^5: Problems with IO::Socket:SSL by noxxi
in thread Parallel::ForkManager or something like that? by Sascha2018

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