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The latest blog posts to take off on Hacker News. 1,839 posts.
Infrastructure & DevOps
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Anatomy of a Ceph meltdown
Last week, the server farm of our LMU Student Council had a major downtime over almost five days. As part of the administrator team there, I’d like to publish this post mortem to share our experiences and lessons learned to avoid situations like this in the future.
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RFC: Ubuntu 18.04 LTS Minimal Images
To date, we've shaved the Bionic (18.04 LTS) minimal images down by over 53%, since Ubuntu 14.04 LTS, and trimmed nearly 100 packages and...
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How to Run Your Own Mail Server (2017)
A guide to self-hosting your email on FreeBSD using Postfix, Dovecot, Rspamd, and LDAP.
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How and why I run my own DNS servers
Despite my woeful knowledge of networking, I run my own DNS servers on my own websites run from home.
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OpenWrt in a WiFi card reader (2017)
The Zsun Wifi card reader is cheap tiny USB to MicroSD card reader with an integrated wifi chip running Linux, In a nutshell, it is a WiFi access point with more flash (16MB) and RAM (64 MB) than most OpenWrt supported routers. Polish hardware hacker q3k from Warsaw Hackerspace, is a recent and…
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Go Is a Great Fit for Lambda
Why Go’s stability and simple deployments is a good fit for a serverless environment.
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Free static websites with SSL for hackers
Note: GitLab Pages now fully integrate with Let’s Encrypt , making this post obsolete.
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Docker for data scientists: Introduction and use cases
Data scientists looking to learn Docker can get a brief intro and a look at how to improve your workflow
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Using Java 9 Modularization to Ship Zero-Dependency Apps
When Java was first introduced, mainstream programming languages mostly either compiled to standalone executables (e.g. C/C++, COBOL), or else ran in an interpreter (e.g. Perl, Tcl). For many programmers, Java’s need for both a bytecode compiler and a runtime interpreter was a shift in thought. The compilation model…
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Three Years on Google App Engine
For the last 3 years I worked on an application that runs on Google App Engine. It is a fascinating, unique piece of service Google is offering here. Unlike anything you’ll find elsewhere. This is my in-depth, personal take on it.
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The state of netbooting Raspberry Pis
Let's take a look at the state of netbooting for Raspberry Pis including how and why you'd build a cluster and how well containers play with network booting
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Redoing all my home networking
How I set up my home lab to be my very own cloud.
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Incremental Backups Using GNU Tar and S3
How to take snapshots of a directory and send to them as backups to S3 using Linux tools
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The Peculiarly Quiet Decline and Fall of the KVM
Yes, that familiar little PC peripheral. The one that toggles a single keyboard/mouse/display ensemble between two or more connected machines.
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AWS EC2 Virtualization 2017: Including Nitro
AWS EC2 Virtualization 2017: explaining the different virtualization types, from emulation and binary substitution, paravirtualization and Xen, PV, HVM, and PVHVM modes, and the new Nitro hypervisor
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Disable transparent hugepages
tl;dr “Transparent Hugepages” is a Linux kernel feature intended to improve performance by making more efficient use of your processor’s memory-mapping hardware. It is enabled ("enabled=always") by default in most Linux distributions. Transparent Hugepages gives some applications a small performance improvement (~ 10%…
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Creating an Autonomous System for Fun and Profit
The thoughts and projects of an engineer who likes to convert solder, firmware, and wire into all sorts of different forms of entertainment.
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FreeBSD/EC2 on C5 instances
Ever since the first EC2 instances launched — the ones which were retrospectively named "m1.small" — Amazon has relied on the Xen hypervisor. No longer: C5 instances use KVM. This sounds like it would be a problem, but in fact that change didn't bother FreeBSD at all: Now that everything uses hardware-based paging…
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My VM is lighter and safer than your container
My VM is lighter (and safer) than your container Manco et al., SOSP’17 Can we have the improved isolation of VMs, with the efficiency of containers? In today’s paper choice the authors investigate …
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Why would anyone choose Docker over fat binaries?
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Things I Wish I'd Known Before Using Vagrant
One of the ironies of working a lot with Docker, Kubernetes, and OpenShift is that I’ve had to learn a lot about Vagrant and Virtualbox. Mostly I use it to spin up OpenShift clusters on my local machine, but I’ve had to poke into lots of corners to get various other things working too.
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