As soon as you have one server, you might be tempted to do some log analysis. That can be to get some metrics from your Apache logs, your spam filter, or whatever time-stamped data your server collects. You can easily … Continue reading
Four years ago I’ve started a journey in workstation virtualization. My goal at the time was to try and escape Apple’s ecosystem as it was moving steadily toward closedness (and iOS-ness). I also though back then that it would allow … Continue reading
Dans le cadre de mon travail, j’administre quelques serveurs de messagerie à fort trafic. Certains tournent sous FreeBSD. Toute modification de ces serveurs, clés de voûte de notre infrastructure de messagerie, doit se faire avec prudence et en comparant leur … Continue reading
Last year I’ve written a post about ZFS primarycache setting, showing how it’s not a good idea to mess with it. Here is a new example based on real world application. Recently, my server crashed, and at launch-time Splunk decided … Continue reading
More than six months away, I’ve put both Splunk and Logstash (plus ElasticSearch and Kibana) to trial. Since the beginning of my experiment, the difference between both products was pretty clear. I was hoping that ELK would be a nice … Continue reading
Logstash is free software, as in beer and speech. It can use many different backends, filters, etc. It comes packaged with Elasticsearch as a backend, and Kibana as user interface, by default. It makes a pleasant package to start with, … Continue reading