catting error.log yields no text (?)
---------------------------------------nginx error.log---------------------------
cat error.log.1
2018/06/18 18:13:14 [crit] 32703#32703: *70852 SSL_do_handshake() failed (SSL: error:10067066:elliptic curve routines:ec_GFp_simple_oct2point:invalid encoding error:1408B010:SSL routines:ssl3_get_client_key_exchange:EC lib) while SSL handshaking, client: 81.171.157.121, server: 0.0.0.0:443