About
openssl is a command line tool that:
- permits testing, managing, and seeing what happens in a TLS world (ie new name for SSL)
- can act as a network client/server
Typical use case
Management
s_client
With the s_client don't forget to use sni
openssl s_client \
-connect server.example.com:587 \
-servername server.example.com # the sni
certs and ca
The certification and ca are located at /etc/ssl/certs
Update of the CA happens via a package.
Installation
- Windows: with the git client