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How to check if a website supports openssl renegotiation and weak cipher?
Posted by on 25 July 2016 12:03 PM

 

Steps:
1. How to check if a website supports openssl renegotiation and weak cipher? 
method 1: openssl s_client command 
use openssl command that comes with CentOS 5.5:

openssl s_client -connect jephe.domain.com:443 
it will show 'secure renegotiation is NOT supported or supported' message

use openssl ciphers to know all the ciphers on the client Linux PC, then you can use the following commands to check specific cipher support on server: 
openssl s_client -connect jephe.domain.com:443 -cipher LOW:EXP - check if it suports low or exp ciphers,

openssl s_client -connect jephe.domain.com:443 -cipher EXP-RC4-MD5 - check specific cipher

openssl s_client -connect jephe.domain.com:443 -cihper MEDIUM

 

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