Posts Tagged ‘Linux’

Kumina sponsoring CloudABI: practical sandboxing for UNIX

Friday, October 14th, 2016

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.

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Gezocht: Gemotiveerde Linux Systeembeheerder

Monday, September 26th, 2016

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.

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awssyncer: an automatic syncer for Amazon S3 that makes use of inotify

Friday, September 16th, 2016

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.

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All about IT Outsourcing: Are you ready? [Infographic]

Thursday, May 19th, 2016

Outsourcing your IT is a big decision and can have many consequences for your organisation. Therefore it is very important that you make sure you are ready for it, and that you go into business with the right company. That is why we created an Infographic to help you determine if IT Outsourcing is the right solution for you. Find out about the benefits of IT Outsourcing and the factors you need to consider when choosing an IT Outsourcing company.

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Job Opening: Debian Linux System Administrator at Kumina

Friday, March 28th, 2014

Kumina is expanding and looking for new employees.

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Icinga check for Linux.Fokirtor

Friday, November 15th, 2013

We’ve written a check for detecting the Fokirtor backdoor.

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Changing the VLAN-ID of an interface in a bridge with minimal downtime

Friday, August 23rd, 2013

Our upstream-provider needed to change the VLAN-ID of our uplink to be in line with their policies. We wanted to do this with minimal downtime. Check out the script we ran on the gateway machines, the VLAN-IDs were changed almost instantly, total unavailability was less than a second.

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Another job opening

Tuesday, June 7th, 2011

There’s another job opening at Kumina!

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