certificate

bash-4.3$ openssl s_client -connect localhost:631
CONNECTED(00000003)
write:errno=104
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no peer certificate available
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No client certificate CA names sent
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SSL handshake has read 0 bytes and written 361 bytes
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New, (NONE), Cipher is (NONE)
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
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