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Created October 13, 2020 17:12
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check tls 1.3 connection without nmap
$ for cipher in TLS_AES_128_GCM_SHA256 TLS_AES_256_GCM_SHA384 TLS_CHACHA20_POLY1305_SHA256 TLS_AES_128_CCM_SHA256 TLS_AES_128_CCM_8_SHA256 ; do openssl s_client -tls1_3 -ciphersuites $cipher -connect < /dev/null > /dev/null 2>&1 && echo "$cipher" ; done
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