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Louwrentius

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Posts

Bose SoundLink on-ear headphones battery replacement

My 71 TiB ZFS NAS after 10 years and zero drive failures

The Raspberry Pi 5 is no match for a tini-mini-micro PC

AI is critically important but not for you

How to run victron veconfigure on a mac

Tunneling Elixir cluster network traffic over Wireguard

IKEA $50 VINDSTYRKA vs. $290 Dylos air quality monitor

My solar-powered blog is now on Lithium Iron Phosphate

I made my blog solar-powered, then things escalated

Benchmarking cheap SSDs for fun, no profit (be warned)

How to setup a local or private Ubuntu Mirror

I resurrected my Dutch movie review site from 2003

An ode to the 10,000 RPM Western Digital (Veloci)Raptor

Raspberry Pi as a router using a single network interface

A practical understanding of lead acid batteries

ZFS RAIDZ expansion is awesome but has a small caveat

Recycle your old laptop display and turn it into a monitor

Understanding the Ubuntu 20.04 LTS Server Autoinstaller

A 12.48 inch (1304x984) three-color e-paper display by Waveshare

Most Technical debt is just bullshit

This blog is now running on solar power

Don't be afraid of RAID

What home NAS builders should understand about silent data corruption

Scrub your NAS hard drives regularly if you care about your data

Benchmarking storage with Fio and generating charts of the results

My home network setup based on managed switches and VLANs

The impact of the MDADM bitmap on RAID performance

Cryptocurrencies are detrimental to society

Understanding Storage Performance - IOPS and Latency

Difference of behavior in SATA Solid State Drives

Benchmarking a 1.44 MB floppy drive

Fio-plot: creating nice charts from FIO storage benchmark data

My home lab server with 20 cores / 40 threads and 128 GB memory

My Ceph test cluster based on Raspberry Pi's and HP MicroServers

Compiling Ceph on the Raspberry Pi 3B+ (armhf) using Clang/LLVM

Understanding Ceph: open-source scalable storage

Setup a VPN on your iPhone with OpenVPN and Linux

HP Proliant Microserver Gen10 as router or NAS

Using InfiniBand for cheap and fast point-to-point Networking

Tracking down a faulty Storage Array Controller with ZFS

RAID 5 is perfectly fine for home usage

ZFS: resilver performance of various RAID schemas

The 'hidden' cost of using ZFS for your home NAS

ZFS performance on HP Proliant Microserver Gen8 G1610T

The sorry state of CoW file systems

Configuring SCST iSCSI target on Debian Linux (Wheezy)

Why I Do Use ZFS as a File System for My NAS

FreeBSD 10.1 unattended install over PXE & HTTP (no NFS)

Creating configuration backups of HP procurve switches

Configuring, attacking and securing VRRP on Linux

Systemd Forward Secure Sealing of system logs makes little sense

Getting the Sitecom AC600 Wi-Fi adapter running on Linux

The ZFS Event Daemon on Linux

Installation of ZFS on Linux hangs on Debian Wheezy

Please use ZFS with ECC Memory

71 TiB DIY NAS based on ZFS on Linux

ZFS: Performance and capacity impact of ashift=9 on 4K sector drives

Achieving 2.3 GB/s with 16 x 4 TB drives

Affordable server with server-grade hardware part II

How to resolve extreme memory usage on Windows 2008 R2-based file servers

My experiences with DFS replication on Windows 2008 R2

How traffic shaping can dramatically improve internet responsiveness

Monitoring HP MSA P2000 G3 I/O latency with Nagios

Creating a basic ZFS file system on Linux

Why you should not use IPsec for VPN connectivity

Achieving 450 MB/s network file transfers using Linux Bonding

Things you should consider when building a ZFS NAS

ZFS on Linux: monitor cache hit ratio

An affordable server platform based on server-grade hardware

Eztables: simple yet powerful firewall configuration for Linux

Script that shows smart values of all disks'

Script that shows relevant disk information

Finding a good blu-ray player for Mac OS X

Linux: script that creates table of network interface properties

How to compile HAProxy from source and setup a basic configuration

Redhat explains why chroot is not a security feature

overview of open-source load balancers

I switched my blog from Blogofile to Pelican

Using iSCSI with time machine and Super Duper

Don't use cloud services if you care about secrecy of your data

Why I believe the new Mac Pro won't be a great machine for gaming

Improving iSCSI Native Multi Pathing Round Robin performance

Creating storage benchmark charts with FIO and GNUplot

Linode hacked: the dark side of cloud hosting

Linode hacked: thoughts about cloud security

Storage and I/O: reads vs. writes

Benchmark results of Random I/O performance of different RAID levels

Statistics showing relevance of caching proxy

Understanding IOPS, latency and storage performance

Linux: get a list of al disks and their size

Why VMware vSphere replication is changing the game

Personal Security: erase your computer or phone before repair

Why I bought a digital projector (Panasonic PT-AT5000E)

Experiences running ZFS on Ubuntu Linux 12.04

Compiling Multicore PAR2 on Ubuntu 12.04 LTS Precise Pangolin

Setting up a Squid proxy with Clamav anti-virus using c-icap

HP Proliant Microserver N40L is a great NAS or Router

Fully unattended deployment of Windows clients using limited resources

Understanding Windows KMS and MAK volume license activation

Improving web application security by implementing database security

Why security is all about defense in depth

Example of a home networking setup with VLANs

Linux Iptables Firewall Script released on Google code

Neato XV-15 / XV-11 Robotic Vacuum cleaner review

Speeding up Linux MDADM RAID array rebuild time using bitmaps

Setting up a VPN with your iPhone using L2TP, IPSec and Linux

Is there an easy and secure way to transfer files?

Script that deletes old files to keep disk from filling up

Lion's FileVault does not support Bootcamp and external boot disks

Lion's Disk Utility not compatible with CoreStorage and Filevault

Achieving 220 MB/s network file transfers using Linux Bonding

Additional proof that Apple is ditching the optical drive

Cheap solution for putting an SSD in an iMac

Switching away from Debian to Ubuntu LTS

Cannot access Windows guest within VMware Fusion when running vsphere client

Performance monitoring using dstat

Determining smartphone market share using wireless sniffing

Buying a new computer

Why I do not use ZFS as a file system for my NAS

Thunderbolt, a cheap high-speed storage interconnect?

Setting up a Jabber instant messaging server |_http-title: Site doesn't have a title (text/html; charset=utf-8).

Parallel / distributed password cracking with John the Ripper and MPI

The downside of 120 Mbit broadband internet

'Improved' image gallery for Blogofile

Firewire: the forgotten security risk

Some pretty NAS case designs

Migration from blogger to blogofile and disqus is complete

Migrated this blog from blogger.com to blogofile

LFS - Linux Firewall Script released

Why filtering DHCP traffic is not always possible with iptables

Belkin Gigabit USB 2.0 adapter works perfectly with Linux

The minimum requirements for a secure system

'Linux: using disk labels to counter storage device name changes'

'Secure programming: how to implement user account management'

Do not buy a hardware RAID controller for home use

Linux network interface bonding / trunking or how to get beyond 1 Gb/s

The iPhone, iPad and iOS are powering a revolution

Apple is killing off the optical drive just like the floppy disk

Linux Software RAID benchmarking script

'Zabbix Security: client-server communication seems insecure'

Debian Lenny and Dell R410 network card not supported

Solaris is an obsolete platform

The future of ZFS now that OpenSolaris is dead

RAID 5 vs. RAID 6 or do you care about your data?

'A Moment Of Silence: OpenSolaris Is Dead'

Compiling Handbrake CLI on Debian Lenny

Debian Lenny and Dell S300 H200 and H700 RAID controllers

Lustre and the risk of Serious Data Loss

Secure caching DNS server on Linux with DJBDNS

'Linux RAID level and chunk size: the benchmarks'

'Tool of the month: iftop - advanced bandwidth monitoring'

WFS - WAN Failover Script now available

HP Procurve "auto DoS" feature causing network problems

RAID array size and rebuild speed

'Linux: monitor a directory for files'

'Syslog: the hidden security risk'

Ubuntu and full disk encryption (FDE)

Scanning many hosts in parallel with Nmap using PPSS

Corsair CM PSU-750HX seems ok

Smoking coolermaster Silent Pro M 600W TN6M50

Is the iPhone OS a threat to our freedom?

Why the iPad will be a breakthrough in human computing

The iPad will be the death of Flash

Mounting a file system or partition from a disk image

'Linux: show graphical layout of disk temperatures'

Recovering a lost partition using gpart

Wake On Lan not working with realtek r8168 card

Shunit2, unit testing for shell scripts

Google DNS - what to think of it?

Convert dos file to linux format wit vim

Which file system for a large storage array under Linux?

'Tip of the day: Scrolling in GNU screen'

'Gzip with parallel compression support: pigz'

How to determine which process causes IO ?

Making cowpatty recognize a four-way handshake

Monitor power usage with your UPS

24 TB based on Norco RPC-4020 and Linux Software RAID

Debian Linux Preseeding - an installation framework

Linux Mac Mini - temperature monitoring with lm-sensors

Linux on Mac Mini - boot after power failure

How to run Debian Linux on an Intel based Mac Mini

The security risk of vendor-supplied default SSL certificates

Blu Ray is dead

PPSS version 2.30 now operates asynchronous

Laptop or netbook as router?

How to build an energy efficient computer for home use

Visual representation of hard drives and their temperature

'Linux: obtain motherboard model / type and vendor'

'lm-sensors: hardware monitoring with the w83627ehf module'

Using ncat to provide SSL-support to non-ssl capable software

Howto get the hard disk size under Linux?

20 disk 18 TB RAID 6 storage based on Debian Linux

HighPoint RocketRAID and staggered spinup with Samsung F1

8 TB RAID 6 Linux software RAID using EXT4

Script that shows ETA of RAID rebuild / reshape

Linux RAID 6 performance using software RAID

1.0 GB/s using Linux software RAID

Got myself a Norco RPC-4020

Bash Shell Function Library (BSFL) released.

'Tip of the day for every Linux or Unix user: brace expantion'

Compatibility Highpoint RocketRAID 2320 and Samsung Spinpoint F1

Automated install of Debian Linux based on PXE net booting

FFmpeg performance on a Core i7 920 @ 3.6 Ghz

How to escape file names in bash shell scripts

Distributed Parallel Processing Shell Script (PPSS) released

Core i7 920 @ 3,6 Ghz is a true beast!

'Linux: unattended installation with Debian preseeding'

Why Debian/Ubuntu Linux is to be preferred

Why I still won't switch to Linux and keep my Mac

Unattended automatic installation of Linux nvidia binary driver

Release of PPSS - the Parallel Processing Shell Script

Benefits of hyper-threading on a Core 7i processor

Rebooting results in degraded RAID array using Debian Lenny

Calculating EXT2 EXT3 EXT4 stride size when using RAID

Did you know that RDP is as insecure as telnet?

The kind of sound you never want to hear from your computer

Is storage really that cheap?

Highpoint RocketRAID 2320 on Debian howto

Building a RAID 6 array of mixed drives