OpenSSL "s_client -connect" - Connect to HTTPS Web Site
Q
How to connect to a HTTPS Web site using OpenSSL? I see the Web sites using the "https:\" format.
✍: FYIcenter.com
A
If you see a Web sites using the "https:\" format, for example https://twitter.com/login/,
you can try to connect the Web site using the "x509 -connect" command as shown below:
C:\Users\fyicenter>\local\openssl\openssl.exe OpenSSL> s_client -connect www.twitter.com:443 -quiet depth=1 C = US, O = DigiCert Inc, OU = www.digicert.com, CN = DigiCert nded Validation Server CA verify error:num=20:unable to get local issuer certificate <Ctrl-C> read:errno=10093
Options used in these commands are:
- "-connect www.twitter.com:443" - Establish a secure communication connection with server "www.twitter.com" at port # "443". Remember that HTTPS Web site uses the default port # 443.
- "-quiet" - Do not print too much debugging information while establishing the connection.
- "<Ctrl-C>" - Send the cancel signal to close the connection
2012-07-24, 10036👍, 0💬