After 12 years, I switched from macOS to OpenBSD. It's clean, focused, stable, consistent and lets me get my work done without any hassle.

Lors d'une discussion avec un Officier de Police Judiciaire, celui-ci me demandait comment faire une analyse de disque dur sans budget logiciel, tout en garantissant un bon niveau d'investigation.

Aujourd'hui un billet qui porte sur Tomcat 8 et plus particulièrement faire du multi-instances.

If you are running Nginx webserver, it is important for you to understand how the location directive works.

The vtop is a graphical activity monitor for the command line written in Node.js. How do I install vtop on my Linux server?

ssh_scan is an easy-to-use prototype SSH configuration and policy scanner for Linux and UNIX servers, inspired by Mozilla OpenSSH Security Guide, which provides a reasonable baseline policy recommendation for SSH configuration parameters such as Ciphers, MACs, and KexAlgos and much more.

Dans le billet précédent, j'ai abordé la création d'un hyperviseur Xen (dom0) NetBSD. Il est donc temps de s'occuper du système invité NetBSD, le domU.

Træfik (pronounced like traffic) is a modern HTTP reverse proxy and load balancer made to deploy microservices with ease. It supports several backends (Docker, Swarm, Kubernetes, Marathon, Mesos, Consul, Etcd, Zookeeper, BoltDB, Eureka, Amazon DynamoDB, Rest API, file...) to manage its configuration automatically and dynamically.

How do I run commands in parallel in a bash shell script running under Linux or Unix-like operating system? How can I run multiple programs in parallel from a bash script?

I have Red Hat Enterprise Linux 6.x/7.x server. How do I find out and groups network bandwidth usage by process under Linux operating systems?

Un petit mémo/tutoriel sur le mise en place d’un serveur de sauvegarde avec BorgBackup. Il s’agit d’un logiciel de sauvegarde avec déduplication, qui supporte la compression et le chiffrement. Si vous voulez en savoir davantage je vous invite à aller jeter un coup d’œil à la documentation, ou à l’article de Cascador sur le sujet.

GnuBee is a personal NAS (Network Attached Storage) cloud server that is currently being funded on Crowd Supply. It is a low-cost, low-power, NAS device that runs GNU/Linux and it is claimed to be based on free, libre, and open source software. No proprietary drivers needed to use GnuBee.

Debian suggests users to migrate to nftables in its next release, yay!

Les systèmes distribués sont complexes. Malgré tout, la montée en puissance du Cloud, de la très haute disponibilité et des augmentations régulières de trafic, les rendent omniprésents de nos jours.

Everybody is now using virtualization, containers are all the rage today, and microkernels start to gain traction… But how is all this working?

A shell script mirror remote server named server1.cyberciti.biz and /backups directory to another server. The script use rsync command and also make sure a special directory mounted in local server. You must setup ssh keys (see “How To Set Up SSH Keys” for more info).

Par définition, un serveur est accédé de manière distante. C’est à dire qu’on doit pouvoir l’administrer sans être physiquement devant. Alors qu’il soit dans un datacenter à l’autre bout du globe ou dans le grenier de la maison, SSH nous permettra de gérer tout ça depuis notre ordinateur de bureau (ou laptop).

After setting up Puppet in an agent/master configuration, you may need some help writing Puppet manifests and modules. In order to use Puppet effectively, you must understand how manifests and modules are constructed.

Macs don’t get much love in the forensics community, aside from @iamevltwin (Sarah Edwards), @patrickolsen (Patrick Olsen), @patrickwardle (Patrick Wardle), and a few other incredibly awesome pioneers in the field.

Debian Stretch feels like an excellent release by the Debian project. The final stable release is about to happen in the short term. Among the great things you can do with Debian, you could set up a VPN using the openvpn software.