superjamie

Raspberry Pi VPN Router

This is a quick-and-dirty guide to setting up a Raspberry Pi as a "router on a stick" to PrivateInternetAccess VPN.

Requirements

Install Raspbian Jessie (2016-05-27-raspbian-jessie.img) to your Pi's sdcard.

Use the Raspberry Pi Configuration tool or sudo raspi-config to:

pcn

I've been playing with jq, and I've been having a hard time finding examples of how it works with output from a service like AWS (which I use a lot).

Here is one I use a lot with vagrant-ec2.

When we're launching and killing a lot of instances, the AWS API is the only way to track down which instances are live, ready, dead, etc.

To find instances that are tagged with e.g. {"Key" = "Name", "Value" = "Web-00'} in the middle of a vagrant dev cycle, or a prod launch/replace cycle, you can do something like this:

a-c-t-i-n-i-u-m

#!/bin/bash
 
# settings
# Login information of freenom.com
freenom_email="main@address"
freenom_passwd="pswd"
# Open DNS management page in your browser.
# URL vs settings:
#   https://my.freenom.com/clientarea.php?managedns={freenom_domain_name}&domainid={freenom_domain_id}
freenom_domain_name="domain.name"

matriphe

# save it as /etc/profile.d/ssh-telegram.sh
# use jq to parse JSON from ipinfo.io
# get jq from here http://stedolan.github.io/jq/
USERID="<target_user_id>"
KEY="<bot_private_key>"
TIMEOUT="10"
URL="https://api.telegram.org/bot$KEY/sendMessage"
DATE_EXEC="$(date "+%d %b %Y %H:%M")"
TMPFILE='/tmp/ipinfo-$DATE_EXEC.txt'
if [ -n "$SSH_CLIENT" ]; then

topheman

" Vundle config

set nocompatible              " be iMproved, required
filetype off                  " required

" set the runtime path to include Vundle and initialize
set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()
" alternatively, pass a path where Vundle should install plugins
"call vundle#begin('~/some/path/here')

stevenswafford

"          _                      _          "
"   _     /||       .   .        ||\     _   "
"  ( }    \||D    '   '     '   C||/    { %  "
" | /\__,=_[_]   '  .   . '       [_]_=,__/\ |"
" |_\_  |----|                    |----|  _/_|"
" |  |/ |    |                    |    | \|  |"
" |  /_ |    |                    |    | _\  |"

	It is all fun and games until someone gets hacked!

filipenf

#!/bin/bash
# lists all buckets along with their tags in the following format:
# bucket_name | { tag_name: tag_value }
# depends on AWS CLI and JQ

for bucket in `aws s3api list-buckets | jq .Buckets[].Name | tr -d \"`; do 
    tags=$(aws s3api get-bucket-tagging --bucket $bucket | jq -c '.[][] | {(.Key): .Value}' | tr '\n' '\t')
    echo $bucket '|' $tags
done

rhelmer

Using aws-cli and jq

list all instances for all ASGs

aws autoscaling describe-auto-scaling-instances \
  | jq '.AutoScalingInstances[] | {AutoScalingGroupName, InstanceId}'

list instance IDs for a particular ASG

mingfang

openssl rsa -in ~/.ssh/id_rsa -outform pem > id_rsa.pem
chmod 600 id_rsa.pem

syphernl

#!/usr/bin/env php -n
<?php
function apache_vhosts($binary='/usr/sbin/apache2ctl')
{
  $command = " -S 2>&1 | grep 'port ' | awk {'print $2,$4'} | sort -u -t' ' -k2,2 | grep -v 'localhost'";
  $vhosts = shell_exec(sprintf("%s %s", $binary, $command));
  $vhosts = explode("\n", trim($vhosts));

  $results = array();
  foreach($vhosts as $vhost)