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Category: HOW-TOs

GRUB Boot from ISO

Last year I worked on a project to add an OEM-style rescue partition to a
computer. Where most OEM installs have a custom program that just rewrites
an install image over the top of the partition, in this case, everything
was based on open-source software. more>>

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AWS EC2 VPC CLI

There’s just something about the fresh start you get with a new job. Both my
previous job and my new one began with the opportunity to build a new
infrastructure from scratch. In both cases, as is common with startup
infrastructure in its early stages, everything was to be built using Amazon Web
Services (AWS), specifically using its Elastic Cloud Computing (EC2)
infrastructure. more>>

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Transferring Conserver Logs to Elasticsearch

If your organization manages Linux, AIX, HP-UX or Solaris servers
in-house, chances are your system administrators at least
occasionally need low-level access to those devices. Typically,
administrators use some kind of serial console—for example, traditional
serial port, Serial-over-LAN or Intelligent Platform Management Interface
(IPMI). more>>

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What’s New in 3D Printing, Part IV: OctoPrint

This is the last article in a four-part series on the current state
of 3D printing. In the first part, I gave an overall introduction to
differences in 3D printing since I wrote my original articles on 3D printing
three years ago. The second piece focused on advances in 3D printing
hardware, and the third column covered 3D printing software. more>>

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MySQL—Some Handy Know-How

I recently was talking to someone over IRC who was helping me with a PHP
app that was giving me trouble. The extremely helpful individual asked
me to let him know the value of a certain field in a record on my MySQL
server. I embarrassingly admitted that I’d have to install something
like PHPMyAdmin or Adminer in order to find that information. more>>

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Securi-Pi: Using the Raspberry Pi as a Secure Landing Point

Like many LJ readers these days, I’ve been leading a bit of a
techno-nomadic lifestyle as of the past few years—jumping from network
to network, access point to access point, as I bounce around the real
world while maintaining my connection to the Internet and other networks I
use on a daily basis. more>>

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An Introduction to Tabled Logic Programming with Picat

Picat is a new logic-based programming language. In many ways, Picat is
similar to Prolog, especially B-Prolog, but it has functions in addition
to predicates, pattern-matching instead of unification in predicate heads,
list comprehensions and optional destructive assignment.
Knowing some Prolog helps when learning Picat but is by no means required.
more>>

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