January/February 2019 issue of acmqueue The January/February 2019 issue of acmqueue is out now

Subscribers and ACM Professional members login here



  Download PDF version of this article PDF

Error 526 Ray ID: 4bc84bf3dba1c5f2 • 2019-03-24 11:27:35 UTC

Invalid SSL certificate








What happened?

The origin web server does not have a valid SSL certificate.

What can I do?

If you're a visitor of this website:

Please try again in a few minutes.

If you're the owner of this website:

The SSL certificate presented by the server did not pass validation. This could indicate an expired SSL certificate or a certificate that does not include the requested domain name. Please contact your hosting provider to ensure that an up-to-date and valid SSL certificate issued by a Certificate Authority is configured for this domain name on the origin server. Additional troubleshooting information here.


Originally published in Queue vol. 3, no. 2
see this item in the ACM Digital Library



Ivar Jacobson, Roly Stimson - Tear Down the Method Prisons! Set Free the Practices!
Essence: a new way of thinking that promises to liberate the practices and enable true learning organizations

Alpha Lam - Using Remote Cache Service for Bazel
Save time by sharing and reusing build and test output

Jez Humble - Continuous Delivery Sounds Great, but Will It Work Here?
It's not magic, it just requires continuous, daily improvement at all levels.

Nicole Forsgren, Mik Kersten - DevOps Metrics
Your biggest mistake might be collecting the wrong data.


(newest first)

erialaspari | Wed, 13 Jul 2016 13:52:27 UTC

The information you have posted is very useful. The sites you have referred was good. Thanks for sharing..

Nitin Maheshwari | Fri, 17 Apr 2015 12:06:33 UTC

The obvious problem is that they do it quite badly. As anybody who has done good documentation knows, generating even an index is not a straightforward, automatic task.

Evan Bowling | Thu, 18 Jun 2009 15:08:10 UTC

I certainly agree about the need for strong documentation. It is often the nature of a program, rather than the code itself, which can be most elusive. I have used inline comments for some time now to store previous values (e.g. css attributes or function arguments) that might be useful in the future. Do you think this is sloppy?

P.S> The URL changed in the 'About the Author' section above to: http://sourceforge.net/projects/humane/

Leave this field empty

Post a Comment:

© 2018 ACM, Inc. All Rights Reserved.