0312 TIL

Sturgeon's law 🔗
is an adage that states that "ninety percent of everything is crap."
Whitelisting VS Blacklisting 🔗

Blacklisting: threat-centric method.

Whitelisting: trust-centric method.

Whitelisting only allows a limited number of applications to run, effectively minimizing the attach surface. Additionally building a whitelist is much easier, as the number of trusted applications would definitely be lower when comparing it to the number of distrusted ones.
"Multi-tenant"🔗
(...)A software architecture in which a single instance of software runs on a server and serves multiple tenants.
A tenant is a group of users who share a common access with specific privileges to the software instance. With a multitenant architecture, a software application is designed to provide every tenant a dedicated share of the instance.
CI/CD Pipeline 🔗
CI: Continuous Integration
CD: Continuous Delivery
A CI/CD pipeline is a series of steps that must be performed in order to deliver a new version of software.
github Webhooks 🔗
Webhooks allow you to build or set up integrations(...). When one of those events is triggered, we'll send a HTTP POST payload to the webhook's configured URL. Webhooks can be used to update an external issue tracker, trigger CI builds, update a backup mirror, or even deploy to your production server.
Jenkins - hooks

echo "pull development server on example_service.com"
git -C /srv/example_service fetch --all
git -C /srv/example_service reset --hard origin/develop
git -C /srv/example_service pull

DB optimization
Scale up: use a more powerful SQL Server
Scale out: use more SQL Servers
other option: code(query) refactoring