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== OpenSSL Linux commandline ssl tool ==
 * Links [[security/ssl]]
== OpenSSL Linux command line ssl tool ==
 * Links [[security/ssl]] , [[easy-rsa]] , [[LetsEncrypt]]
 * [[OpenSslSelfSignedCertificate| openssl self signed certificate with keyUsage flags ]]
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=== Verify a webserver certificate === === Verify a web server certificate ===
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   * As of 2017 the Protocal should be TLSv1.2 at least.    * As of 2017 the TLS Protocol should be TLSv1.2 at least.

 * For sni you can add '''-servername xyz.test.com'''

=== OpenSSL retrieve url ===
 * retrieve url, e.g. /healthz, note -ign_eof to wait for more input from echo {{{
time echo -e "GET /healthz HTTP/1.1\r\nConnection: close\r\nHost: pieter\r\n\r\n" | openssl s_client -ign_eof -connect 172.24.0.3:443
}}}

=== SSL speed testing ===
openssl s_time -connect 172.17.0.2:443 -www "/welcome/"
openssl s_time -connect 172.17.0.2:443 -www /

curl -s -w 'Testing Website Response Time for :%{url_effective}\n\nLookup Time:\t\t%{time_namelookup}\nConnect Time:\t\t%{time_connect}\nPre-transfer Time:\t%{time_pretransfer}\nStart-transfer Time:\t%{time_starttransfer}\n\nTotal Time:\t\t%{time_total}\n' -o /dev/null https://172.17.0.2

 * slow {
231 connections in 0.29s; 796.55 connections/user sec, bytes read 57981
231 connections in 31 real seconds, 251 bytes read per connection
}
 * fast {
30821 connections in 8.14s; 3786.36 connections/user sec, bytes read 6749799
30821 connections in 31 real seconds, 219 bytes read per connection

}
httping

OpenSSL Linux command line ssl tool

Verify a web server certificate

  • openssl s_client -showcerts -connect my.test.com:443
    • Output should end on "Verify return code: 0 (ok)"
    • As of 2017 the TLS Protocol should be TLSv1.2 at least.
  • For sni you can add -servername xyz.test.com

OpenSSL retrieve url

  • retrieve url, e.g. /healthz, note -ign_eof to wait for more input from echo

    time echo -e "GET /healthz HTTP/1.1\r\nConnection: close\r\nHost: pieter\r\n\r\n" | openssl s_client -ign_eof  -connect 172.24.0.3:443

SSL speed testing

openssl s_time -connect 172.17.0.2:443 -www "/welcome/" openssl s_time -connect 172.17.0.2:443 -www /

curl -s -w 'Testing Website Response Time for :%{url_effective}\n\nLookup Time:\t\t%{time_namelookup}\nConnect Time:\t\t%{time_connect}\nPre-transfer Time:\t%{time_pretransfer}\nStart-transfer Time:\t%{time_starttransfer}\n\nTotal Time:\t\t%{time_total}\n' -o /dev/null https://172.17.0.2

  • slow {

231 connections in 0.29s; 796.55 connections/user sec, bytes read 57981 231 connections in 31 real seconds, 251 bytes read per connection }

  • fast {

30821 connections in 8.14s; 3786.36 connections/user sec, bytes read 6749799 30821 connections in 31 real seconds, 219 bytes read per connection

} httping

vigor: Linux/OpenSSL (last edited 2020-09-08 02:49:09 by PieterSmit)