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#!/usr/bin/env bb

(require '[clojure.tools.cli :refer [parse-opts]])

(def generator (java.security.SecureRandom.))

(defn gen-pass [alphabet length]
  (let [bound (count alphabet)
        idxs  (repeatedly length #(.nextInt generator bound))]
    (apply str (map alphabet idxs))))

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Edit `/etc/hostname` and then run `/etc/init.d/hostname.sh start`

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Debian

Simply run dpkg-reconfigure tzdata and select the timezone.

FreeBSD

We need to copy or link the timezone file to /etc/localtime:

cp /usr/share/zoneinfo/Pacific/Noumea /etc/localtime

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Install Oracle Java on Debian

Download

wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u25-b17/jdk-8u25-linux-x64.tar.gz

Install

mkdir /opt/jdk

tar -zxf jdk-8u5-linux-x64.tar.gz -C /opt/jdk

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Disallowing root access with password authentication

On machines with a single sysadmin where the root account is enabled, it might still be convenient to allow root login through key pairing only by disabling remote password login for root. To this end, /etc/sshd_config should have the fololwing lines:

PermitRootLogin without-password

PubkeyAuthentication yes

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Starting and stopping PostgreSQL server

Start, and stop, manually:

pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start
pg_ctl -D /usr/local/var/postgres stop -s -m fast

Or let launchd start the server at login or boot:

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#
#!optional
#!rest
#(
#\
#\altmode
#\backnext
#\backspace
#\call
#\linefeed

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var hypotrochoid = require('hypotrochoid')
  , d3 = require('d3')

var ranged = range(0, 500, 1)
var points = ranged.map(function(t) {
  return hypotrochoid(70, [50, 70, 82.5], t)
})

function range(start, end, inc) {
  var a = []

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[ Launch: movable point on circle ] 9845680 by i-blis

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%!TEX TS-program = xelatex
\documentclass[12pt]{scrartcl}  

% The declaration of the document class:

% The second line here, i.e.
% \documentclass[12pt]{scrartcl} 
% is a standard LaTeX document class declaration: 
% we say what kind of document we are making in curly brackets, 
% and specify any options in square brackets.