Author Archives: Wayne Clifford Barker

Unit of scale is important!

3  weeks ago I got a request to come and consult at a company. They needed help with scaling their software into the azure cloud. They are a small company with some google funding. I arrived and found that they were already using azure. They have a web app that contains many many web api… Read More »

The revocation function was unable to check revocation because the revocation server was offline.

The error ‘The revocation function was unable to check revocation because the revocation server was offline.’ is raised when an application is trying to check if the provided certificate is valid but it is unable to connect to the revocation server. The usual cause is that the server is fire-walled and cannot connect out to… Read More »

Complex password validation with regular expression

Our team had to build a password validation regular expression for a client that had the following requirements. Below is the expression for anyone that needs anything like this. Hopefully I safe someone some time. ^(?=.{16,})(?=.*[1-9])(?=.*[a-z])(?=.*[A-Z])(?=.*[(!@#$%^&*()_+|~\- =\`{}[\]:”;'<>?,.\/, )])(?!.*(.)\1).+$ Length 16 characters At least one number At least one lowercase character At least one uppercase character At… Read More »