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SSL

HTTP HTTPS

HTTP (Hypertext Transfer Protocol) is a communication protocol used for data transfer on the World Wide Web. It is used for the transfer of text content, images, videos, hyperlinks, etc. The default port for HTTP is port 80.

HTTPTPS (Hypertext Transfer Protocol Secure) is a secure version of HTTP that uses SSL / TLS to encrypt communication between client and server. It uses port 443 by default. The main difference between HTTP and HTTPS is that HTTPS uses an additional security layer to encrypt the data, making it more secure for transfer.

➜ openssl s_client -connect example.com:443.

  • identify certificate SSL of page 

    # enter in the secure icon of the server
# research subdomain, etc
# filter by encrypted for show let's Encrypt

openssl s_client -connect DOMAIN:433   # Scanning the content of certificate page
sslscan hola.com                        # scanning the content of certificate page
nmap -sCV -p80,443 IP

  • connect and verify vulnerabilities 

    nc --ssl IP PORT                       # this encrypted connection