jriguera’s gists

jriguera / pass_recovery.sh

Created February 8, 2015 14:07

Raspberry PI password recovery for arch linux

	#!/bin/bash -e
	#
	# Raspberry PI password recovery for arch
	# The SD should be mounted on $DEV (usually sdb2)

	USER=root
	PASSWORD=hola
	DEV=sdb2

	# Creating SHA512 password for arch

jriguera / firewall-sshd-limit.sh

Created March 9, 2015 00:57

Limit ssh connections

	#!/bin/sh

	# requires hashlimit
	iptables -I INPUT -p tcp -m tcp --dport 22 -m state --state NEW \
	-m hashlimit --hashlimit 1/min \
	--hashlimit-burst 5 --hashlimit-mode srcip \
	--hashlimit-name SSH --hashlimit-htable-expire 120000 \
	-j ACCEPT

	iptables -I INPUT -p tcp -m tcp --dport 22 \

jriguera / openvpn-new-client.sh

Created March 9, 2015 01:00

Create a new openvpn client

	#!/bin/bash
	# Create client for OpenVPN using easy-rsa
	# create p12 certificate

	PREFIX=lu
	BASE_DIR="/etc/openvpn"
	DEST_DIR="$BASE_DIR/clients"
	EASY_DIR="$BASE_DIR/easy-rsa"

	if [ "$#" -ne 1 ]; then

jriguera / removing_GPT

Last active August 29, 2015 14:19

How to remove GPT table

	Warning!! Unsupported GPT (GUID Partition Table) detected. Use GNU Parted
	To go back to the normal MBR:

	# parted /dev/sda
	# mklabel msdos
	# quit


	Or, do it in a single line:
	# parted -s -- /dev/sda mklabel msdos

jriguera / 00-openvpn-bittorrent.txt

Last active February 4, 2018 09:39

Split routing for bittorrent in Arch

	By doing these steps, transmission will be listening only on the VPN interface/network.
	As debian/ubuntu are now using systemd, the following instructions should work on those distros.

	1) Copy all shell scripts to /usr/local/bin/ and make them executable
	2) Copy systemd service unit to /etc/systemd/system/
	3) Install transmission: sudo pacman -Syu transmission-cli
	4) Install openvpn: sudo pacman -Syu openvpn
	5) Change transmission parameters: sudo vim /var/lib/transmission/.config/transmission-daemon/settings.json
	6) Create the openvpn client configuration file: /etc/openvpn/client.conf
	7) Enable the new service: sudo systemctl enable openvpn-bittorrent

jriguera / public_ip.sh

Last active August 29, 2015 14:20

getting the public ip

	#!/bin/bash

	dev=$1

	ping -c 1 -I $dev ifconfig.me && \
	echo "Public ip: $(curl -s --interface $dev ifconfig.me/host) $(curl -s --interface $dev ifconfig.me/ip)"

jriguera / remotevnc.sh

Created April 27, 2015 10:29

Connect to a linux box to see the remote screen using VNC through ssh tunnel

	#!/usr/bin/env bash
	#
	# Script to connect to remote machine via ssh and export X11 via vnc using a ssh tunnel
	#
	# Author: Jose Riguera <[email protected]> December 2009
	# License: GNU General Public License v2 or later
	#
	# x11vnc must be installed on remote host
	# xvnc4viewer must be installed on local host
	#

jriguera / openstack_cli_create_tenant.sh

Created April 27, 2015 11:17

Example of a creation of a new tenant in OpenStack using the command line

	#!/bin/bash

	TENANT=cf
	PASSWORD=cf
	TENANT_DESC="Cloud Foundry"
	TENANT_EMAIL="[email protected]"
	TENANT_NET="10.0.1.0/24"
	TENANT_NET_GW="10.0.1.1"

	export OS_USERNAME=admin

jriguera / s3.java

Created April 28, 2015 14:32

S3 test in java

	import java.io.ByteArrayInputStream;
	import java.io.File;
	import java.util.List;
	import com.amazonaws.auth.AWSCredentials;
	import com.amazonaws.auth.BasicAWSCredentials;
	import com.amazonaws.util.StringUtils;
	import com.amazonaws.services.s3.AmazonS3;
	import com.amazonaws.services.s3.AmazonS3Client;
	import com.amazonaws.services.s3.model.Bucket;
	import com.amazonaws.services.s3.model.CannedAccessControlList;

jriguera / openstack_cli_ironic.sh

Last active March 16, 2018 22:56

Example how to deploy a baremetal server using ironic standalone

	#!/bin/bash

	# Create the initial ramdkisk
	export ELEMENTS_PATH="/home/jriguera/diskimage-builder/elements"
	ramdisk-image-create ubuntu deploy-ironic grub-install -o my-deploy-ramdisk

	# Create the image to deploy on disk (with ConfigDrive support)
	DIB_CLOUD_INIT_DATASOURCES="ConfigDrive, OpenStack" disk-image-create ubuntu baremetal dhcp-all-interfaces -o my-image

	# Define the parameter for the new server

José Riguera Lopez jriguera