How to implement a custom Spring-Boot Application HealthIndicator

For those who use Spring-Boot or even better JHipster as based stack for their Java Enterprise Application, you are probably familiar with Spring-Boot « health » endpoint within Actuator project.

springboot-health-ok Lire la suite

Releasing on GitHub my AWS EC2Backuper: Uses Tag and Applies Retention Policy

As introduction, you can read my post a year ago about AWS EC2 backup ecosystem and needs

https://zoumana.wordpress.com/2015/04/01/aws-ec2backuper-tool/

EC2Backuper is a multi-platform (Java based with bat and shell launchers) which goal is to

Screenshot from 2016-06-12 18:20:12 Lire la suite

Strategies/Tips to move your SQL model to NoSQL

Some times for performance, availability or scalability reasons, we may need to rewrite an application that was previously working with an SQL database to fit a NoSQL usage or even hybrid one: a part of data will remain relational and the other part not relational

https://i2.wp.com/blog.continued-learning.com/wp-content/uploads/2015/11/sql-n-nsql.jpg

Lire la suite

IPTABLES: Prevent a server from spamming out

Your server can somehow be compromised and used to spam (email): if it’s a cloud or a dedicated server subscribed from a decent provider, they will notify you about that (i speak from experience here :-))

Any way to prevent yourself from that or to block back in case you are facing it already, here are simple iptables rules Lire la suite