fulmicoton

Leader election on top of Scuttlebutt.
-----------------------------------------------

The following makes it possible to cheaply get a leader election
on top of a Cassandra-like membership using scuttlebutt + phi accrual detection.

# TDLR about Scuttlebutt and phi accrual detection

Scuttlebutt is a anti-entropy gossip algorithm.
It makes it possible for every node in a cluster to 

hiway

How to jail a single process web server on FreeBSD 12.1

You may have found many great resources on how to set up jails on latest FreeBSD, however there is scant information on how to go about creating a barebones jail with nothing but the one process that you want to isolate.

I was curious if I could contain a statically compiled web server that I wrote while learning Rust all by itself in a jail instead of having a full userland.

j-keck

create a vm

root@main:~ # vm create -t debian -s 100G nixos
root@main:~ # vm iso /stuff/downloads/nixos-graphical-18.03.132192.ce0d9d638de-x86_64-linux.iso 
root@main:~ # vm -f install nixos nixos-graphical-18.03.132192.ce0d9d638de-x86_64-linux.iso

boot the image

determine the 'init' executable path from '(cd0)/isolinux/isolinux.cfg'. look for a line which start's with: 'APPEND init=/nix/store/.....'

jahewson

# Licensed under CC BY 3.0 http://creativecommons.org/licenses/by/3.0/
# Derived works must attribute https://gist.github.com/4492300 at the beginning, and the date.

##################################################################
Installing and Configuring SmartOS on a budget server (with a /29)
##################################################################

# if you find this gist useful, please star it

# please be aware that budget hosting companies usually cut corners somewhere,

drewjoh

$(document).ready(function() {
	
// Support for AJAX loaded modal window.
// Focuses on first input textbox after it loads the window.
$('[data-toggle="modal"]').click(function(e) {
	e.preventDefault();
	var url = $(this).attr('href');
	if (url.indexOf('#') == 0) {
		$(url).modal('open');
	} else {

argent-smith

Ruby 1.9.2 RVM w/iconv FreeBSD installation HOWTO

The Problem

Recently, trying to run some of my crutches (the Ruby thingies I use to help me sysadmining) under RVM, I've found that require 'iconv' doesn't work. Since I knew it's working in standard lang/ruby18 and lang/ruby19 ports I started to search where is the trap and have found that. Here's how.

Prerequisites

• rvm installed
• system ruby installed

amedeo

CouchDB and multiple tags

The problem

Given a set of documents, each associated with multiple tags, how can I retrieve the documents tagged with an arbitrary set of tags?

My solution

lfborjas

#these are meant to be run in a REPL, and the java one in beanshell of something of the sort:
#ruby
[1,2,3,4].select{ |x| x.even? }

#python
[x for x in [1,2,3,4] if not x%2]
#or, more norvingly
filter(lambda x: not x%2, [1,2,3,4])

#clojure

andoriyu

user  app;
worker_processes  2;

error_log   /home/app/logs/nginx.error.log  info;

events {
    worker_connections  1024;
}

mikhailov

# NOTICE: to get Nginx+Unicorn best-practices configuration see the gist https://gist.github.com/3052776

  $ cd /usr/src
  $ wget http://nginx.org/download/nginx-1.2.1.tar.gz
  $ tar xzvf ./nginx-1.2.1.tar.gz && rm -f ./nginx-1.2.1.tar.gz

  $ wget ftp://ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-8.30.tar.gz
  $ tar xzvf pcre-8.30.tar.gz && rm -f ./pcre-8.30.tar.gz

  $ wget http://www.openssl.org/source/openssl-1.0.1c.tar.gz