Please do not apply for this position, it has already been filled! Are you experienced with Linux, cloud infrastructure and containers. Are you up to the challenge of building and maintaining IT infrastructure for multiple clients? We’re looking for someone like you. About Kumina Kumina provides managed services for an interesting mix of clients in […]

Kumina joined the Cloud Native Computing Foundation and the Linux Foundation as a silver member. We specialise in Linux and open source software since day one and started working with Docker and Kubernetes in its early days. Joining the Cloud Native Computing Foundation (CNCF) and the Linux Foundation demonstrates our commitment to keep contributing to the Kubernetes ecosystem and to the spirit of open source in general. Last year, along with names such as Canonical, Huawei, IBM and Bitnami, we also joined the Kubernetes Certified Service Partner program. The KCSP is a pre-qualified tier of vetted service providers who have extensive experience helping enterprises successfully adopt Kubernetes.

Heb jij ervaring met Linux, cloud infrastructuur of containers? Hou je van een gezonde afwisseling tussen het opzetten en onderhouden van een IT-infrastructuur voor diverse klanten en het optimaliseren van interne processen? Dan is Kumina misschien wel dé plek voor jou. We zijn op zoek naar een enthousiaste systeembeheerder met interesse in Docker en Kubenetes.

A side-channel attack on most modern CPU’s was discovered last week which impacts most internet services in general. This vulnerability made it to mainstream news sites, which is quite unusual, and has been the subject of some questions from end-users and customers. This blog post is meant to provide some general answers and a probable time-line of patches and mitigations.

Kumina is sponsoring CloudABI: CloudABI is a UNIX-like programming environment for Linux and the BSDs that allows you to easily design sandboxed applications. It accomplishes this by making strong use of capability-based security, inspired by the University of Cambridge’s Capsicum. Compared to traditional UNIX applications, CloudABI applications are better resistent against security vulnerabilities, easier to test and easier to maintain. CloudABI is available as Open Source Software, free of charge.

Heb jij ervaring met Linux (Debian) en ben je op zoek naar een nieuwe uitdaging binnen een open maar professionele werkomgeving? Dan is Kumina misschien wel dé plek voor jou. We zijn een groeiend bedrijf en momenteel op zoek naar een Debian Linux Systeembeheerder die ons team wil komen versterken.

At Kumina, we’re strong users of the Amazon AWS cloud computing platform. We’ve been using EC2 instances for quite some time and are currently working on expanding this by making use of Kubernetes. To further optimise our solutions, we’ve developed a new utility called awssyncer, which is as of now available on GitHub! awssyncer is a utility written in C++ that uses Linux’s inotify to keep track of local modifications to a directory on disk. The purpose of this utility is to use these inotify events to determine which files need to be synced back into S3. This utility thus provides continuous one-way sychronisation from local disk to S3. A simple container startup script is used to sync files from S3 to local disk on startup. Though we realise that this utility is fairly specific to our situation at hand, we do invite all of you to give it a try.

*Update: Deze vacature is inmiddels vervuld. Kumina is echter altijd op zoek naar gemotiveerde Linux experts. Stuur ons gerust een open sollicitatie op jobs@kumina.nl.* Heb jij ervaring met Linux (Debian) en ben je op zoek naar een nieuwe uitdaging binnen een open maar professionele werkomgeving? Dan is Kumina misschien wel dé plek voor jou. We […]