title: curl: (60) Peer's certificate issuer has been marked as not trusted by the user
body: <pre><code>curl -L https://get.rvm.io | bash -s stable --ruby
  </code></pre>
  
  <p>when i try this ,I get the this,I thisk my openssl is broken,</p>
  
  <pre><code>% Total % Received % Xferd Average Speed Time Time Time Current
  Dload Upload Total Spent Left Speed
  0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
  curl: (60) Peer's certificate issuer has been marked as not trusted by the user.
  More details here: http://curl.haxx.se/docs/sslcerts.html
  
  curl performs SSL certificate verification by default, using a "bundle"
  of Certificate Authority (CA) public keys (CA certs). If the default
  bundle file isn't adequate, you can specify an alternate file
  using the --cacert option.
  If this HTTPS server uses a certificate signed by a CA represented in
  the bundle, the certificate verification probably failed due to a
  problem with the certificate (it might be expired, or the name might
  not match the domain name in the URL).
  If you'd like to turn off curl's verification of the certificate, use
  the -k (or --insecure) option.
  </code></pre>
  
  <p>I use -k ,but it always error,
  I follow this way <a href="https://serverfault.com/questions/437546/centos-openldap-cert-trust-issues">https://serverfault.com/questions/437546/centos-openldap-cert-trust-issues</a>
  but it error again,how to fix it?</p>