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openssl s_client

Description

SSL/TLS client program for testing connections.

Command
openssl s_client
Examples
Test SSL connection
openssl s_client -connect example.com:443
Test with SNI
openssl s_client -connect example.com:443 -servername example.com
Show certificate chain
openssl s_client -connect example.com:443 -showcerts
Parameters
Parameter Type Required Description
-connect string No Server to connect to (host:port)
-servername string No SNI server name
-showcerts string No Show all certificates in chain
Command Info
Category: Ssl/tls Testing
Type: Openssl
Views: 12
Status: Active
Tags
ssl tls client testing