nz

# Custom reindexing with Sunspot
# Use your own finder, rescue and log exceptions, etc.
# Throw this in a rake task, or class method to run from the console

Article.find_in_batches(:batch_size => 100) do |articles|
  articles.each do |article|
    tries = 0
    begin
      article.solr_index
    rescue RSolr::RequestError => e

jarosan

# Run with: rake environment elasticsearch:reindex

namespace :elasticsearch do
  desc "re-index elasticsearch"
  task :reindex => :environment do

    klass = Place
    ENV['CLASS'] = klass.name
    ENV['INDEX'] = new_index = klass.tire.index.name << '_' << Time.now.strftime('%Y%m%d%H%M%S')

setup_kiosk.sh

#!/bin/bash

# This script
# - creates a user (named below)
# - sets up a union (aufs) filesystem on top of the users immutable home
# - creates a cleanup script (/usr/local/bin/cleanup.sh) that empties the aufs
#   layer on login/logout/boot
# - replaces the lightdm config
# - replaces rc.local to run the script
#

crisidev

KEY=XXXXXXXXXXXX
HOST="https://metrics.crisidev.org"

mkdir -p dashboards && for dash in $(curl -k -H "Authorization: Bearer $KEY" $HOST/api/search\?query\=\& |tr ']' '\n' |cut -d "," -f 5 |grep slug |cut -d\" -f 4); do 
  curl -k -H "Authorization: Bearer $KEY" $HOST/api/dashboards/db/$dash > dashboards/$dash.json 
done

xbb

Use this as an example on how to start the virtual console without the need of Java Web Start or accessing it from the web interface.
You can use the user and password that you use for the web interface.

You need an old JRE... I used 1.7.0_80 from the Server JRE package, also I have tested successfully 1.7.0_79 with MacOS.
You don't need to install it, just extract it or copy the files in "jre" folder.

Open the viewer.jnlp file that you get by launching the virtual console from the web interface with a text editor.
Note the urls to the jar files. Download the main jar file avctKVM.jar and the libs for your operating system and architecture.
Extract the dlls (.so Linux, .jnilib MacOS) from the jar libs.

nraynaud

Unattended installation of Xenserver with iso file

• create answers.xml
• unpack iso file

    mount sudo mount XenServer-7.1.0-s1-install-cd.iso /mnt
    mkdir newContent
    (cd /mnt; sudo tar cf - .) |  (cd newContent; tar xfp -)

vidia

# I had a bit of trouble getting my unifi controller (hosted offsite) to use a proxy/letsencrypt. So here are the fruits of my labor. 
# The unifi default port is 8443 running on localhost. 

# License: CC0 (Public Domain)

server {
        # SSL configuration
        #
        listen 443 ssl default_server;
        listen [::]:443 ssl default_server;

tarnacious

{ config, lib, pkgs, ... }:

with lib;

{
  imports =
    [ 
      <nixpkgs/nixos/modules/installer/cd-dvd/channel.nix>
      ./machine-config.nix
    ];

swuecho

#
# The official PVE docs on how to prepare cloud-init templates:
#   https://pve.proxmox.com/wiki/Cloud-Init_Support#_preparing_cloud_init_templates
#
# Additional guides and resources:
#   https://dae.me/blog/2340/how-to-add-an-existing-virtual-disk-to-proxmox/
#   https://pve.proxmox.com/pve-docs/qm.1.html

# use the Qemu/KVM Virtual Machine Manager to import the disk
qm importdisk 107 Univention-App-kopano-core-KVM.qcow2 local-lvm

egg82

More techniques - caching apt packages network-wide

This guide runs through setting up AptCacherNg on a proxy/server to provide apt caching to clients. The client proxy scripts allow for multiple proxies, and account for proxies being offline.

Note that, for obvious reasons, this only works on Debian-based machines (Ubuntu and derivatives as well).

Server (the cache/proxy)

Note: you will need port 3142 open to the clients using this cache/proxy