Mon 05 February 2018

Filed under Gentoo

Tags gentoo lvm sparc

The story

My SPARC Enterprise T5120 came with two 10000 RPM SAS HDDs, both with a labeled capacity of 146GB. Gentoo was installed on the first hard drive, and thanks to the old SILO that was in charge of booting the system up, I have to keep a single-large-root partition …

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Mon 22 January 2018

Filed under Go

Tags golang gentoo sparc

Preface

Gc (Go's most widely-used compiler) isn't available for GOOS=linux && GOARCH=sparc (Gentoo SPARC) for now; what makes matters worse is that Gccgo (sys-devel/gcc[go]) is not working on Gentoo (it hangs in early initialization). Debian Ports comes to the rescue, as although no Gc as well, their …

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Sat 18 November 2017

Filed under Networking

Tags networking

Preface

With a bunch of servers, it's necessary that they're named in a consistent manner. This article describes how the machines should be named.

Basic rule

A machine name should consist of the following three parts:

  • a unique identifier for the machine (Romaji of Japanese words in one Kanji, examples …
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Wed 15 November 2017

Filed under Networking

Tags networking gre mpls iproute2

Preface

MPLS can be used for prioritizing traffic, which will be used in JSteward Tech's routing policy. This article works out how to label packets with MPLS and switch according to packets between two host connected by a GRE tunnel.

Before you start

Full MPLS support wasn't present in Linux …

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Sat 11 November 2017

Filed under Networking

Tags networking infrastructure

Preface

As the number of machines I manage increase gradually, it has become a necessity to connect the machines together through secure, reliable tunnels, thus forming an internal network. A private network can have the following advantages:

  • Ease of configuring services that involve multiple machines, such as a databases and …
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