Example Reference
TLS Ciphersuite
Variables: https://mozilla.github.io/python-nss-docs/nss.ssl-module.html
TLS_FALLBACK_SCSV = 22016 https://blog.csdn.net/u010129119/article/details/77665925
TLS cipher suite 225 is TLS_RSA_WITH_RC4_128_MD5. TLS_RSA_WITH_RC4_128_MD5 is no longer considered to be a secure cipher suite and should not be used.