SQL: One of the most valuable skills - Craig Kerstiens

Feb 19, 2019 · 2 min read

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I admit it. I suffered from an “algebra narcoleptic syndrome” during my relational database lessons at University (1996 circa).

Finding Kafka’s throughput limit in Dropbox infrastructure | Dropbox Tech Blog

Feb 14, 2019 · 1 min read

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At Dropbox, Kafka clusters are managed by the Jetstream team, whose primary responsibility is to provide high quality Kafka services. Understanding Kafka’s throughput limit in Dropbox infrastructure is crucial in making proper provisioning decision for different use cases, and this has been an important goal for the team. Recently, we created an automated testing platform to achieve this objective. In this post, we would like to share our method and findings.

Read Finding Kafka’s throughput limit in Dropbox infrastructure | Dropbox Tech Blog

isync: free IMAP and MailDir mailbox synchronizer

Feb 8, 2019 · 1 min read

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isync: free IMAP and MailDir mailbox synchronizerisync is a command line application which synchronizes mailboxes; currently Maildir and IMAP4 mailboxes are supported. New messages, message deletions and flag changes can be propagated both ways. isync is suitable for use in IMAP-disconnected mode.Synchronization is based on unique message identifiers (UIDs), so no identification conflicts can occur (as opposed to some other mail synchronizers).Synchronization state is kept in one local text file per mailbox pair; multiple replicas of a mailbox can be maintained.isync is free software in the sense of the GNU GPL v2.

Source: isync: free IMAP and MailDir mailbox synchronizer

Detecting Agile bullshit

Feb 5, 2019 · 1 min read

devops en software

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The department of defense, has published a nice document to “detect” agile bullshit. The document is called DIB_DETECTING_AGILE_BS_2018.10.05 and was published on October 2018.

Fail2Ban

Jan 28, 2019 · 1 min read

en knowledgebase unix-featured · linux security

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On these days I decided to tune a bit more, my new shiny linux server box. I started to set up fail2ban. I think fail2ban is very imporant nowadays because it is a good example of a tool for slowing down attacks without closing your server too much.