[Solved] Error: (!log_opts) Could not complete SSL handshake with : 5

If you are working with the nrpe and just compiled with the nrpe but not able to start the nrpe service on the 5666 port its because you have not compiled it with the SSL support.

So to resolve this issue you need to recompile it with the SSL support to overcome this issue as

cd  nrpe-3.2.1
./configure --enable-ssl

If you already have use the --enable-ssl than  you might not have added the ip address in the /etc/nagios/nrpe.cfg

allowed_hosts=127.0.0.1,192.168.33.5

In case you are using xinetd or inetd services than you need to change /etc/xinetd.d/nrpe

only_from       = 127.0.0.1 192.168.33.5