Archives for Software Dev - Page 2
Cache Control Header and CDNs
In order to cache dynamic content (server side generated content), the cache-control needs to have the value 'public'. This tells the response that it can be cached server-side. Otherwise, by…
Running Tips for those over 50 – 50 + age runners
For me, the two biggest problem areas have been a) Joint stiffness, strength b) Digestive Issues - including bloating/acidity which can affect a productive run. There is some research that…
Certificate Revoking and Certificate Deletion
With certbot (letsencrypt), and with certificates in general, it is important to think of the full lifecycle of the certificate. Often, folks feel that as long as they have provisioned…
Invalid Document Content Error in running an AWS SSM document
If you are using terraform to create a systems manager document and an SSM association, there are a few hiccups you might encounter Also see this post on Systems Manager…
Installing certbot on an EC2 using AWS Systems Manager
Registering the certbot client and requesting a certificate - sudo yum -y install yum-utils - sudo yum -y install - sudo yum-config-manager --enable rhui-REGION-rhel-server-extras rhui-REGION-rhel-server-optional - sudo yum -y install certbot - sudo certbot register --server {{ CertServerUrl }} -m {{ contactEmail }} --no-eff-email - sudo certbot certonly --server {{ CertServerUrl }} --cert-name {{ certName }} -d {{ certDomains }} --webroot-path {{ webrootPath }} > / The terraform file () # input variables variable "instance_ids" { type = list default = } variable "cert_common_name" { type = string default = "avTestCert" }…
Tokenization versus Encryption vs Data Masking
Tokens are pointers to data - and substitute data (not transform it) Tokenization Pros Use Cases - PCI Data - Credit Card info etc. Tokenization reduces the in-house responsibility of…
Why do we need certificates at all in PKI?
The public key that is used to send someone a message (for example - if someone wants to send me a message, they will use my public key - so…
VBA for applications in Excel for Office 365?
Not to worry. VBA is still present in Office 365's version of excel. All you have to do is enable it (enable Developer Tools). Files --> Options --> Customize Ribbon…
UAT and PRODUCTION data – mirrors?
Should UAT data be a copy of production? This isn't a hard NO - but a maybe. Things to consider: How is the The last production database backup restored over…
Calendly Review – after 3 years of paid subscription
Top two concerns with Calendly events - my review after 3 years of use. Concern 1 - Mostly no show registrations There isn't a way to filter out real versus…