Tls
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Test sever supported ciphers
test via command line
- openssl (https://superuser.com/a/224263 https://www.redhat.com/sysadmin/6-openssl-commands https://node-security.com/posts/tls-server-signature-algorithm/)
apt-get install openssl openssl ciphers -v | column -t | sort -r -k 2 openssl ciphers 'ALL:eNULL' openssl s_client -ciphers <CHIPER> -connect example.com:443 2>&1
- nmap (from https://superuser.com/a/763908)
apt-get install nmap curl -O http://nmap.org/svn/scripts/ssl-enum-ciphers.nse $ nmap --script ssl-enum-ciphers -p 443 example.com
- sslscan (https://superuser.com/a/121572)
apt-get install sslscan sslscan --tlsall example.com
test via web
from (https://www.thecodebuzz.com/how-to-list-the-ssl-tls-cipher-suites-a-particular-website-offers/)
more
see https://wiki.mozilla.org/Security/Server_Side_TLS#Intermediate_compatibility_.28recommended.29